Bush Hog | Disc Hay Mower | Owners manual | Bush Hog Disc Hay Mower Disc Hay Mower Owners Manual

Bush Hog Disc Hay Mower Disc Hay Mower Owners Manual
DISC
MOWER
DHM7
Published 05/19
Part No. 50078281
OPERATOR’S MANUAL
This Operator's Manual is an
integral part of the safe operation
of this machine and must be
maintained with the unit at all
times. READ, UNDERSTAND, and
FOLLOW
the
Safety
and
Operation Instructions contained
in this manual before operating
the equipment. C01-Cover_B
Important Operating
and
Safety
Instructions
are
found in the Mower
Safety Video that
can be instantly
accessed on the
®
BUSH HOG
2501 Griffin Ave.
Selma, AL 36703
334-874-2700
www.bushhog.com
© 2019 Alamo Group Inc.
$0.00
In order to reduce accidents and enhance the safe operation of mowers, Bush Hog, in cooperation with other
industry manufacturers has developed the AEM/FEMA Industrial and Agricultural Mower Safety Practices video
and guide book.
The video will familiarize and instruct mower-tractor operators in safe practices when using industrial and
agricultural mowing equipment. It is important that Every Mower Operator be educated in the operation of their
mowing equipment and be able to recognize the potential hazards that can occur while operating a mower. This
video, along with the mower operator’s manual and the warning messages on the mower, will significantly assist in
this important education.
Your Authorized Bush Hog Dealer may have shown this video and presented you a DVD Video when you
purchased your mower. If you or any mower operator have not seen this video, Watch the Video, Read this
Operator’s Manual, and Complete the Video Guidebook before operating your new mower. If you do not
understand any of the instructions included in the video or operator’s manual or if you have any questions
concerning safety of operation, contact your supervisor, dealer or Bush Hog.
If you would like a VHS video tape of the video, please email AEMVideo@alamo-group.com or Fax AEM VHS
Video at (830) 372-9529 or mail in a completed copy of the form on the back of this page to AEM VHS Video 1502
E Walnut Street, Seguin, TX 78155. and request the VHS video version. Please include your name, mailing
address, mower model and serial number.
Every operator should be trained for each piece of equipment (Tractor and Mower), understand the intended use
and the potential hazards before operating the equipment.
The information and material listed above along with this Operator’s Manual can assist you in meeting the OSHA
requirement for Operator annual training.
OSHA TRAINING REQUIREMENTS
The following training requirements have been taken from Title 29, Code of Federal Regulations Part
1928.57 (a)(6). www.osha.gov
Operator Instructions. At the time of initial assignment and at least annually thereafter, the employer shall instruct
every employee who operates an agricultural tractor in the safe operating practices and servicing of equipment with
which they are or will be involved, and of any other practices dictated by the work environment.
Bush Hog will provide
one (1) AEM Mower Safety Practices Video
Please Send Me:
VHS Format – AEM/FEMA Mower Operator Safety Video
DVD Format – AEM/FEMA Mower Operator Safety Video
Mower Operator’s Manual
AEM Mower Operator’s Safety Manual
Requester Name:_________________________________Phone:___________________________
Requester Address: ___________________________________________
City:_____________________________________
State: ____________________________________
Zip Code:_________________________________
Mower Model:___________________________Serial Number:_____________________________
Date Purchased:__________________________Dealer Salesperson:_________________________
Dealership Name:________________________ Dealership Location:________________________
Mail to:
AEM Video Services
1502 E. Walnut Street
Seguin, TX 78155
Or Fax to:
(830) 372-9529
Or Email to:
AEMVideo@alamo-group.com
To the Owner/Operator/Dealer
This Operator's Manual is an integral part of the safe operation of this machine and must be maintained with the
implement at all times. A Manual canister is provided on the implement where this manual can be properly stored.
If you lose or damage this manual a free replacement manual can be obtained from an authorized Bush Hog dealer
or by down loading the manual from the Bush Hog website www.bushhog.com
BEFORE YOU START! READ, UNDERSTAND, and FOLLOW the information provided in this manual, the AEM
Mower Safety manual and the tractor operator's manual carefully to learn how to operate and service your machine
properly. Failure to do so could result in personal injury to you and bystanders. All implements with moving parts
are potentially hazardous. Every effort has been made to ensure that the machine is safe, but operators must avoid
engaging in unsafe practices and follow the written instructions provided. The manufacturer has designed this
implement to be used with all its safety equipment properly attached to minimize the chance of accidents.
SAFETY FIRST. Completely read and understand the safety section of this manual before operating this
equipment. Do not allow anyone to operate this equipment who has not fully read and understood this manual.
Contact your Dealer to explain any instructions that you do not fully understand.
The care you give your Bush Hog Implement will greatly determine your satisfaction with its performance and its
service life. Carefully read and follow the instructions in this manual to provide you with a thorough understanding
of your new implement and its intended use and service requirements.
All references made in this manual to right, left, front, rear, top or bottom are as viewed facing the direction of
forward travel with the implement properly attached to the tractor.
Replacement Parts information is located in a separate Parts Manual. Bush Hog mowers use balanced and
matched system components for blade carriers, blades, cuttershafts, knives, knife hangers, rollers, drivetrain
components, and bearings. These parts are made and tested to Bush Hog specifications. Non-genuine “will fit”
parts do not consistently meet these specifications. The use of “will fit” parts may reduce mower performance, void
warranties, and present a safety hazard. Use genuine Bush Hog mower parts for economy and safety.
For future reference, record your Bush Hog product model number and serial number.
Dealer
Telephone
Model Number
Owner
Purchase Date
Serial Number
SERIAL NUMBER PLATE
DEALER to CUSTOMER Pre-Delivery / Operation
Instructions
Dealer should inform the Purchaser of this product of Warranty terms, provisions, and procedures that are
applicable. Dealer should also inform the Purchaser to review the contents of the Operator’s Manual including
safety equipment, safe operation and maintenance, to review the Safety Signs on the implement (and tractor if
possible) and of Purchaser’s responsibility to train his/her operators in safe operation procedures.
•
IMPLEMENTS: I have explained that Deflectors, Chain Guards, or Solid Skirts must be installed and
maintained in good repair.
•
DRIVELINES: I have made certain that all driveline, gearbox, and other shields are in good repair and fastened
securely in place to prevent injuries from entanglement or thrown objects.
•
HYDRAULIC MACHINES: I have explained the necessity of using clean hydraulic oil, changing filters as
instructed, stopping leaks, damage caused by operating with over-heated oil, caring for hoses, using hoses of
proper rating, maintaining the specified operating pressure and the potential hazard of oil’s penetrating the
skin.
•
FOLDING-TYPE IMPLEMENTS: I have explained that it is not possible to guard against thrown objects when
the head is lifted off ground and that operator is responsible to watch out for persons in the area. I have
explained that the lifted mower head or boom can contact overhead obstructions with damage to cables and
telephone lines and possible injury. I have explained that the extended head or boom or retracted boom can
contact power lines with resulting electrocution, injury or death and that operator is responsible for keeping
clear of such hazards.
PRE-DELIVERY SERVICE
CHECK AND ADJUST OR LUBRICATE AS REQUIRED
See Operator’s Manual for Details
Inspection Performed - Warranty and Safety Procedures Explained - Installation Complete
LUBRICATION & HYDRAULICS
MOWER TO TRACTOR CONNECTIONS
 Gearbox (Oil Levels)
 Draw Bar Length (Check And Set)
 Hydraulic Oil Level (External Tank)
 A-Frame Pivot & Links
 Tractor Hydraulic Oil Level
 Control Rods (Adjusted Equal)
 Hydraulic Hoses (Not Kinked Tighten Connections)
 Axle Height (Adjusted)
 Front Pump Drive (Assembly Is Tight And Shaft Properly  Cutting Height (Adjust)
Aligned)
 Mount Kit-Pre-Operation Check Complete
 Mower Wing (Adjust Level With The Center)
MOWER
 Mower Wing (Check For Proper Raising Operation)
 Spindle And Motor Bolts Properly Torqued
 C.V. Drivelines (Check Max Turn Radius)
 Spindle Oil Level
 Pull Type Hitch (Height Adjustment)
 Blade Carrier Bolts Properly Torqued/Retaining Pin In  Mounting Hardware Properly Torqued





Place
Mower Cutting Height And Level Adjusted
Cutting Shaft Bearings Lubricated
All Hardware Properly Torqued
Tire and Air Pressure/Lug Nuts (Correct Torque)
Wheel Bearings (Check, Grease, and Preload)
ATTACHMENTS & INSTALLATION
 Deflectors Front And Rear
 Shredding Attachments
 Correct Blade Rotation Direction
 Axle Arms And Beams
 Tongue And Control Rods (Installed And Adjusted)
 All Bolts - Pins And Nuts (Proper Torque)
SAFETY ITEMS
 Protective Shields (Operation And Installation)
 Driveline Clutch (Torque Limiter) (Adjust And Run In)
 Safety Decals (Installed)
 Operator’s Manual (Supplied)
 Tractor PTO Shield (Installed)
 S.M.V. Emblem (Installed If Needed)
 Tongue Jack (Installation and Operation)
 Safety Tow Chain (Installed)
 ADMA Driveline Safety Manual Supplied
 AEM Mower Safety Manual (Supplied in Canister)
 AEM Mower Safety Video has been shown to Purchaser
Table of Contents
SAFETY SECTION ............................................................................................................. 1-1
General Safety Instructions and Practices ........................................................................................................ 1-2
Operator Safety Instructions and Practices ...................................................................................................... 1-3
Equipment Operation Safety Instructions and Practices ................................................................................... 1-5
Connecting or Disconnecting Implement Safety Instructions and Practices ................................................... 1-10
Transporting Safety Instructions and Practices .............................................................................................. 1-10
Maintenance and Service Safety Instructions and Practices .......................................................................... 1-12
Storage and Parking Safety Instructions and Practices .................................................................................. 1-14
Concluding Safety Instructions and Practices ................................................................................................. 1-14
Decal Location ................................................................................................................................................ 1-15
Federal Laws and Regulations ....................................................................................................................... 1-18
INTRODUCTION SECTION ................................................................................................ 2-1
ASSEMBLY SECTION ....................................................................................................... 3-1
TECHNICAL NOTES TO AID IN ASSEMBLY OF DHM7 ................................................................................. 3-2
Pins and Screws ............................................................................................................................................... 3-2
Shims, Spacers, Bushings and Washers .......................................................................................................... 3-2
Nuts, Grease Nipples ........................................................................................................................................ 3-2
.......................................................................................................................................................................... 3-2
DM7 ASSEMBLY .............................................................................................................................................. 3-3
OPERATION SECTION ...................................................................................................... 4-1
Standard Equipment and Specifications ........................................................................................................... 4-3
OPERATOR REQUIREMENTS ........................................................................................................................ 4-4
TRACTOR REQUIREMENTS ........................................................................................................................... 4-5
ROPS and Seat Belt ......................................................................................................................................... 4-5
Tractor Safety Devices ...................................................................................................................................... 4-5
3-Point Hitch ..................................................................................................................................................... 4-6
Front End Weight .............................................................................................................................................. 4-6
Power Take Off (PTO) ...................................................................................................................................... 4-6
GETTING ON AND OFF THE TRACTOR ........................................................................................................ 4-7
Boarding the Tractor ......................................................................................................................................... 4-7
Dismounting the Tractor .................................................................................................................................... 4-8
STARTING THE TRACTOR ............................................................................................................................. 4-8
CONNECTING THE MOWER TO THE TRACTOR .......................................................................................... 4-9
Connecting the Mower .................................................................................................................................... 4-10
SETTING THE MOWER ................................................................................................................................. 4-11
Adjusting the Height of the Frame above the Ground. .................................................................................... 4-11
Adjusting Cutting Height ................................................................................................................................. 4-12
Adjusting Spring Tension ................................................................................................................................ 4-12
Belt Tension Adjustment ................................................................................................................................ 4-13
Hydraulic Flow Adjuster .................................................................................................................................. 4-13
Safety Device .................................................................................................................................................. 4-14
DRIVELINE ATTACHMENT ........................................................................................................................... 4-14
Adjusting Shaft Length .................................................................................................................................... 4-14
PRE-OPERATION INSPECTION AND SERVICE .......................................................................................... 4-15
Tractor Pre-Operation Inspection/Service ....................................................................................................... 4-16
Mower Pre-Operation Inspection/Service ....................................................................................................... 4-16
Cutting Component Inspection ........................................................................................................................ 4-18
DRIVING THE TRACTOR AND IMPLEMENT ................................................................................................ 4-21
Starting the Tractor ......................................................................................................................................... 4-22
Brake and Differential Lock Setting ................................................................................................................. 4-22
Working Position ............................................................................................................................................. 4-23
Driving the Tractor and Mower ........................................................................................................................ 4-24
Crossing Ditches and Steep Inclines .............................................................................................................. 4-24
OPERATING THE TRACTOR AND IMPLEMENT .......................................................................................... 4-26
Foreign Debris Hazards .................................................................................................................................. 4-27
Bystanders/Passersby Precautions ................................................................................................................ 4-27
Engaging the Power Take Off (PTO) .............................................................................................................. 4-28
PTO RPM and Ground Speed ........................................................................................................................ 4-29
Operating the Mower ...................................................................................................................................... 4-29
Shutting Down the Implement ......................................................................................................................... 4-31
DISCONNECTING THE MOWER FROM THE TRACTOR ............................................................................ 4-32
MOWER STORAGE ....................................................................................................................................... 4-33
TRANSPORTING THE TRACTOR AND IMPLEMENT .................................................................................. 4-33
Transporting the Mower .................................................................................................................................. 4-34
Transporting on Public Roadways .................................................................................................................. 4-36
Hauling the Tractor and Implement ................................................................................................................. 4-37
TROUBLESHOOTING GUIDE ....................................................................................................................... 4-39
MAINTENANCE SECTION ................................................................................................. 5-1
Disk and Blade Maintenance ............................................................................................................................ 5-2
How to Check the Mower Devices .................................................................................................................... 5-2
Disc Replacement ............................................................................................................................................. 5-4
LUBRICATION .................................................................................................................................................. 5-5
STORAGE ........................................................................................................................................................ 5-7
PROPER TORQUE CHART FOR FASTENERS .............................................................................................. 5-7
SAFETY SECTION
Safety Section 1-1
SAFETY
General Safety Instructions and Practices
SAFETY
A careful operator is the best operator. Safety is of primary importance to the manufacturer and should be to
the owner/operator. Most accidents can be avoided by being aware of your equipment, your surroundings, and
observing certain precautions. The first section of this manual includes a list of Safety Messages that, if
followed, will help protect the operator and bystanders from injury or death. Read and understand these Safety
Messages before assembling, operating or servicing this Implement. This equipment should only be operated
by those persons who have read the manual, who are responsible and trained, and who know how to do so
responsibly.
The Safety Alert Symbol combined with a Signal Word, as seen below, is used throughout this
manual and on decals which are attached to the equipment. The Safety Alert Symbol means:
“ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!” The Symbol and Signal Word
are intended to warn the owner/operator of impending hazards and the degree of possible injury
faced when operating this equipment.
Practice all usual and customary safe working precautions and above all---remember safety is
up to YOU. Only YOU can prevent serious injury or death from unsafe practices.
Indicates an imminently hazardous situation that, if not avoided, WILL result in DEATH OR
VERY SERIOUS INJURY.
Indicates an imminently hazardous situation that, if not avoided, COULD result in DEATH
OR SERIOUS INJURY.
Indicates an imminently hazardous situation that, if not avoided, MAY result in MINOR
INJURY.
Identifies special instructions or procedures that, if not strictly observed, could result in
damage to, or destruction of the machine, attachments or the environment.
NOTE: Identifies points of particular interest for more efficient and convenient operation or repair.(SG-1)
READ, UNDERSTAND, and FOLLOW the following Safety Messages. Serious injury or
death may occur unless care is taken to follow the warnings and instructions stated in the
Safety Messages. Always use good common sense to avoid hazards. (SG-2)
Si no lee ingles, pida ayuda a alguien que si lo lea para que le traduzca las
medidas de seguridad. (SG-3)
DHM7 05/19
© 2019 Alamo Group Inc.
Safety Section 1-2
SAFETY
Operator Safety Instructions and Practices
The rotating parts of this machine continue to rotate even after the PTO has been turned off.
The operator should remain in the operator’s seat for 60 seconds after the brake has been
set, the PTO disengaged, the tractor turned off, and all evidence of rotation has ceased.
(S3PT-10)
“Wait a minute...Save a life!”
(SG-4)
The operator and all support personnel should wear hard hats, safety
shoes, safety glasses, and proper hearing protection at all times for
protection from injury including injury from items that may be thrown by
the equipment. (SG-16)
PROLONGED EXPOSURE TO LOUD NOISE MAY CAUSE
PERMANENT HEARING LOSS! Tractors with or without an Implement
attached can often be noisy enough to cause permanent hearing loss.
We recommend that you always wear hearing protection if the noise in
the Operator’s position exceeds 80db. Noise over 85db over an
extended period of time will cause severe hearing loss. Noise over 90db
adjacent to the Operator over an extended period of time will cause
permanent or total hearing loss. NOTE: Hearing loss from loud noise
[from tractors, chain saws, radios, and other such sources close to the
ear] is cumulative over a lifetime without hope of natural recovery. (SG-I7)
Always read carefully and comply fully with the manufacturer’s
instructions when handling oil, solvents, cleansers, and any other
chemical agent. (SG-22)
KEEP AWAY FROM ROTATING ELEMENTS to prevent entanglement
and possible serious injury or death. (SG-24)
DHM7 05/19
© 2019 Alamo Group Inc.
Safety Section 1-3
SAFETY
Never operate the Tractor or Implement until you have read and
completely understand this Manual, the Tractor Operator’s Manual, and
each of the Safety Messages found in the Manual or on the Tractor and
Implement. Learn how to stop the tractor engine suddenly in an
emergency.
Never allow inexperienced or untrained personnel to
operate the Tractor or Implement without supervision. Make sure the
operator has fully read and understood the manuals prior to operation.
SAFETY
Never allow children to play on or around Tractor or Implement. Children can slip or fall off
the Equipment and be injured or killed. Inadvertent contact with controls can cause the
Implement to shift or fall crushing themselves or others. (SG-25)
SAFETY
DO NOT use drugs or alcohol immediately before or while operating the
Tractor and Implement. Drugs and alcohol will affect an operator’s
alertness and coordination and therefore affect the operator’s ability to
operate the equipment safely. Before operating the Tractor or Implement,
an operator on prescription or over-the-counter medication must consult
a medical professional regarding any side effects of the medication that
would hinder their ability to operate the Equipment safely. NEVER
knowingly allow anyone to operate this equipment when their alertness or
coordination is impaired. Serious injury or death to the operator or others
could result if the operator is under the influence of drugs or alcohol. (SG-27)
Prolonged operation may cause operator boredom and fatigue affecting safe operation.
Take scheduled work breaks to help prevent these potentially impaired operating
conditions. Never operate the Implement and Tractor in a fatigued or bored mental state
which impairs proper and safe operation. (SG-32)
Use extreme caution when getting onto the Implement to perform repairs, maintenance and
when removing accumulated material. Only stand on solid flat surfaces to ensure good
footing. Use a ladder or raised stand to access high spots which cannot be reached from
ground level. Slipping and falling can cause serious injury or death. (SG-33)
Avoid contact with hot surfaces including hydraulic oil tanks, pumps, motors, valves and
hose connections. Relieve hydraulic pressure before performing maintenance or repairs.
Use gloves and eye protection when servicing hot components. Contact with a hot surface
or fluid can cause serious injury from burns or scalding. (SG-34)
DO NOT operate this Implement on a Tractor that is not properly maintained. Should a
mechanical or Tractor control failure occur while operating, immediately shut down the
Tractor and perform repairs before resuming operation. Serious injury and possible death
could occur from not maintaining this Implement and Tractor in good operating condition.
(SG-36)
Avoid contact with hot surfaces of the engine or muffler. Use gloves and eye protection
when servicing hot components. Contact with a hot surface or fluid can cause serious injury
from burns or scalding. (SG-38)
DHM7 05/19
© 2019 Alamo Group Inc.
Safety Section 1-4
SAFETY
Do not put hands or feet under mower decks. Blade Contact can result
in serious injury or even death. Stay away until all motion has stopped
and the decks are securely blocked up. (SGM-09)
Do not operate the implement while wearing loose fitting clothing. Entanglement of the
clothing with the rotating elements can result in serious injury or even death. Stay clear of
all rotating elements at all times. (SSP-03)
Equipment Operation Safety Instructions and Practices
Never leave the Tractor and Implement unattended while the Implement is in the lifted
position. Accidental operation of lifting lever or a hydraulic failure may cause sudden drop
of unit with injury or death by crushing. To properly park the implement when
disconnecting it from the tractor, lower the stand and put the retaining pin securely in place,
or put a secure support under the A-Frame. Lower the implement carefully to the ground.
Do not put hands or feet under lifted components. (S3PT-1)
This Implement may be wider than the Tractor. Be careful when operating or transporting
this equipment to prevent the Implement from running into or striking sign posts, guard rails,
concrete abutments or other solid objects. Such an impact could cause the Implement and
Tractor to pivot violently resulting in loss of steering control, serious injury, or even death.
Never allow the Implement to contact obstacles. (S3PT-12)
Be sure you have adequate knowledge of the property you will be working on. Take time to
make yourself aware of any area underground lines or cables. Contact with buried lines or
cable could result in serious injury or death. If in doubt about buried utility lines call 811
before digging or 1-800-258-0808. (SBH-6)
Operate this Equipment only with a Tractor equipped with an approved rollover-protective system (ROPS). Always wear seat belts. Serious injury or even
death could result from falling off the tractor, particularly during a turnover when
the operator could be pinned under the ROPS. (SG-7)
DHM7 05/19
© 2019 Alamo Group Inc.
Safety Section 1-5
SAFETY
Always keep a careful lookout and use extreme care when working around utility and
municipal obstructions. Never allow the Mower to contact any utility, municipal, or other
type structure. Clearly mark all mowing obstructions and consult local utility providers for
a safe code of operation. (SPU-5)
SAFETY
BEFORE leaving the tractor seat lower the implement, set the parking
brake and/or set the tractor transmission in parking gear, disengage the
PTO, stop the engine, remove the key, and wait for all moving parts to
stop. Place the tractor shift lever into a low range or parking gear to
prevent the tractor from rolling. Never dismount a Tractor that is moving
or while the engine is running. Operate the Tractor controls from the
tractor seat only. (SG-9)
SAFETY
Never allow children or other persons to ride on the Tractor or Implement.
Falling off can result in serious injury or death. (SG-10)
Never allow children to operate, ride on, or come close to the Tractor or
Implement. Usually, 16-17 year-old children who are mature and
responsible can operate the implement with adult supervision, if they
have read and understand the Operator’s Manuals, been trained in
proper operation of the tractor and Implement, and are physically large
enough to reach and operate the controls easily. (SG-11)
Do not mount or dismount the Tractor while the tractor is moving. Mount
the Tractor only when the Tractor and all moving parts are completely
stopped. (SG-12)
Start tractor only when properly seated in the Tractor seat. Starting a
tractor in gear can result in injury or death. Read the Tractor operators
manual for proper starting instructions. (SG-13)
Do not operate this Equipment with hydraulic oil or fuel leaking. Oil
and fuel are explosive and their presence could present a hazard. Do
not check for leaks with your hand! High-pressure oil streams from
breaks in the line could penetrate the skin and cause tissue damage
including gangrene. To check for a hose leak, SHUT the unit ENGINE
OFF and remove all hydraulic pressure. Wear oil impenetrable gloves,
safety glasses and use cardboard to check for evidence of oil leaks. If
you suspect a leak, REMOVE the HOSE and have it tested at a Dealer.
If oil does penetrate the skin, have the injury treated immediately by a
physician knowledgeable and skilled in this procedure. (SG-15)
DHM7 05/19
© 2019 Alamo Group Inc.
Safety Section 1-6
SAFETY
Never run the Tractor engine in a closed building or without adequate ventilation. The
exhaust fumes can be hazardous to your health. (SG-23)
Do not exceed the rated PTO speed for the Implement. Excessive PTO speeds can cause
Implement driveline or blade failures resulting in serious injury or death. (SG-26)
In case of mechanical difficulty during operation, place the transmission in the park
position, set the parking brake, shut down all power, including the PTO and the engine and
remove the key. Wait until all rotating motion has stopped before dismounting. (SG-39)
Do Not operate this equipment in areas where insects such as bees, may attack you and/or
cause you to lose control of the equipment. If you must enter in such areas, use a tractor
with an enclosed Cab and close the windows to prevent insects from entering. If a tractor
cab is not available, wear suitable clothing including head, face, and hand protection to
shield you from the insects. Attacking insects can cause you to lose control of the tractor,
which can result in serious injury or death to you or bystanders. Never dismount a moving
tractor. (SG-40)
Mow only in conditions where you have clear visibility in daylight or with adequate artificial
lighting. Never mow in darkness or foggy conditions where you cannot clearly see at least
300 feet (90 m) in front and to the sides of the tractor and mower. Make sure that you can
clearly see and identify passersby, steep slopes, ditches, drop-offs, overhead obstructions,
power lines, debris and foreign objects. If you are unable to clearly see these type of items
discontinue mowing. (SGM-1)
There are obvious and hidden potential hazards in the operation of this
Mower. REMEMBER! This machine is often operated in heavy brush
and in heavy weeds. The Blades of this Mower can throw objects if
shields are not properly installed and maintained. Serious injury or even
death may occur unless care is taken to insure the safety of the operator,
bystanders, or passersby in the area. Do not operate this machine with
anyone in the immediate area. Stop mowing if anyone is within 300 feet
of mower. (SGM-02)
DHM7 05/19
© 2019 Alamo Group Inc.
Safety Section 1-7
SAFETY
Operate the Tractor and/or Implement controls only while properly seated in the Tractor
seat with the seat belt securely fastened around you. Inadvertent movement of the Tractor
or Implement may cause serious injury or death. (SG-29)
SAFETY
The rotating parts of this machine have been designed and tested for rugged use.
However, the blades could fail upon impact with heavy, solid objects such as metal guard
rails and concrete structures. Such impact could cause the broken objects to be thrown
outward at very high velocities. To reduce the possibility of property damage, serious
injury, or even death, never allow the cutting blades to contact such obstacles. (SGM-4)
SAFETY
Extreme care should be taken when operating near loose objects such
as gravel, rocks, wire, and other debris. Inspect the area before
mowing. Foreign objects should be removed from the site to prevent
machine damage and/or bodily injury or even death. Any objects that
cannot be removed must be clearly marked and carefully avoided by the
operator. Stop mowing immediately if blades strike a foreign object.
Repair all damage and make certain rotor or blade carrier is balanced
before resuming mowing. (SGM-05)
Many varied objects, such as wire, cable, rope, or chains, can become entangled in the
operating parts of the mower head. These items could then swing outside the housing at
greater velocities than the blades. Such a situation is extremely hazardous and could result
in serious injury or even death. Inspect the cutting area for such objects before mowing.
Remove any like object from the site. Never allow the cutting blades to contact such items.
(SGM-06)
Mow at the speed that you can safely operate and control the tractor and mower. The
correct mowing speed depends on terrain condition and grass type, density, and height of
cut. Normal ground speed range is from 2 to 5 mph(3-8 kph). Use slow mowing speeds
when operating on or near steep slopes, ditches, drop-offs, overhead obstructions, power
lines, or when debris and foreign objects are to be avoided. (SGM-07)
Avoid mowing in reverse direction when possible. Check to make sure there are no
persons behind the mower and use extreme care when maneuvering in reverse. Mow only
at a slow ground speed where you can safely operate and control the tractor and mower.
Never mow an area that you have not inspected and removed debris or foreign material.
(SGM-08)
Do not mow with two machines in the same area except with Cab tractors with the windows
closed. (SGM-11)
DHM7 05/19
© 2019 Alamo Group Inc.
Safety Section 1-8
SAFETY
Follow these guidelines to reduce the risk of equipment and grass fires
while operating, servicing, and repairing the Mower and Tractor:
-Equip the Tractor with a fire extinguisher in an accesible location.
-Do Not operate the Mower on a Tractor with an underframe exhaust.
-Do Not smoke or have an open flame near the Mower and Tractor.
-Do Not drive into burning debris or freshly burnt areas.
-Ensure slip clutches are properly adjusted to prevent excessive slippage and plate heating.
The Mower is designed for certain mowing applications and is rated to cut up to a specific
size vegetation (see Mower Standard Equipment and Specifications). DO NOT use this
mower to cut vegetation above the Mower’s rated capacity or to cut any type of nonvegetative material. Only operate this Mower on a properly sized and equipped Tractor.
Operating this Mower in an application for which it is not designed and/or operating the
Mower with the wrong size Tractor can cause Mower component damage and equipment
failure resulting in possible serious injury or death. (SGM-14)
Do not operate or pull the mower into standing water. When uplift or fan type mower blades
contact water they can be severely deflected downward causing possible failure of blade
resulting in serious boldly injury to the operator or bystanders. (SGM-15)
Use extreme caution when raising the Mower above ground level. Stop the Blades from
turning when the Mower is raised and passersby are within 100 yards. Raising the
Mower exposes the Cutting Blades which creates a potentially serious hazard and can
cause serious injury by objects thrown from the Blades or by contact with the Blades. (SPU-1)
Disc Mowers are capable under adverse conditions of throwing rocks and other debris for
a considerable distance (50 yards or more) and causing serious bodily injury. Follow safety
messages carefully.
STOP MOWING IF PASSERSBY ARE WITHIN 50 YARDS UNLESS:
-Front Curtain Shield is installed and in good condition. Replace
when needed with genuine Original Equipment Manufactuers parts.
-Mower cutting head is running close to and parallel to the ground surface.
-Passersby are outside the thrown object zone.
-The area to be cut has been cleared of foreign material such as rocks, cans, glass, and
debris. NOTE: This Disc mower is not to be used for highway maintenance. (SDM-1)
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Safety Section 1-9
SAFETY
-Never allow clippings or debris to collect near drivelines, slip clutches, and gearboxes.
Periodically shut down the Tractor and Mower and clean clippings and collected debris from
the mower deck. (SGM-12)
SAFETY
Disc Mowers rotate at a very high rate of speed (3000 RPM). Vibration due to missing,
broken, or unbalanced components may cause serious imbalance and lead to rapid failure
of components and possible bodily injury from components failure or thrown objects. KEEP
BLADE BOLTS AND DISC ATTACHING BOLTS TIGHTENED TO A SPECIFIED IN
OPERATORS MANUAL TO ASSURE THE INTEGRITY OF THE ASSEMBLIES. (SDM-3)
SAFETY
There are obvious and hidden potential hazards in the operation of the Disc Mower.
REMEMBER! This machine is often operated in hay, grass , and heavy weeds which could
hide foreign objects. Remove all foreign debris before mowing an area. The Blades of this
mower can throw objects if shields are not installed and maintained. Serious injury or even
death may occur unless care is taken to insure the safety of the operator, bystanders, or
passersby in the area. Do not operate this machine with anyone in the immediate area.
Stop mowing if anyone is within 50 yards of mower. (SDM-4)
Do not let the Blades turn when the Mower Deck is raised for any
reason, including clearance or for turning. Raising the Mower deck
exposes the Cutting Blades which creates a potentially serious hazard
and could cause serious injury or even death from objects thrown from
the Blades. (SRM-07)
Connecting or Disconnecting Implement Safety Instructions and
Practices
Always shut the Tractor completely down, place the transmission in park, and set the
parking brake before you or anyone else attempts to connect or disconnect the Implement
and Tractor hitches. (S3PT-15)
Transporting Safety Instructions and Practices
Be particularly careful when transporting the Implement with the Tractor. Turn curves or go
up hills only at a low speed and using a gradual steering angle. Rear mounted implements
move the center of gravity to the rear and remove weight from the front wheels. Make
certain, by adding front ballast, that at least 20% of the tractor’s weight is on the front wheels
to prevent rearing up, loss of steering control or Tractor tip-over. Slow down on rough or
uneven surfaces to prevent loss of steering control which could result in property damage
or possible injury. Do not transport unless 3-Point lift lever is fully raised and in the latched
transport position. Dropping implement in transport can cause serious damage to the
tractor and/or Implement and possibly cause the operator or others to be injured or killed.
(S3PT-02)
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SAFETY
This Implement may be wider than the Tractor. Be careful when operating or transporting
this equipment to prevent the Implement from running into or striking sign posts, guard rails,
concrete abutments or other solid objects. Such an impact could cause the Implement and
Tractor to pivot violently resulting in loss of steering control, serious injury, or even death.
Never allow the Implement to contact obstacles. (S3PT-12)
Make certain that the “Slow Moving Vehicle” (SMV) sign is installed in
such a way as to be clearly visible and legible. When transporting the
Equipment use the Tractor flashing warning lights and follow all local
traffic regulations. (SG-6)
Before transporting the Tractor and Implement, determine the proper transport speeds for
you and the equipment. Make sure you abide by the following rules:
Test the tractor at a slow speed and increase the speed slowly. Apply the Brakes smoothly
to determine the stopping characteristics of the Tractor and Implement. As you increase
the speed of the Tractor the stopping distance increases.
Determine the maximum
transport speed not to exceed 20 mph (30 kph) for transporting this equipment.
Test the equipment at a slow speed in turns. Increase the speed through the turn only after
you determine that the equipment can be operated at a higher speed. Use extreme care
and reduce your speed when turning sharply to prevent the tractor and implement from
turning over. Determine the maximum turning speed for you and this equipment before
operating on roads or uneven ground.
Only transport the Tractor and Implement at the speeds which allow you to properly control
the equipment.
Be aware of the operating conditions. Do not operate the Tractor with weak or faulty brakes
or worn tires. When operating down a hill or on wet or rain slick roads, the braking distance
increases: use extreme care and reduce your speed. When operating in traffic always use
the Tractor’s flashing warning lights and reduce your speed. Be aware of traffic around you
and watch out for the other guy. (SG-19)
Be particularly careful when transporting the Implement using the tractor. Turn curves or
go up or down hills only at a low speed and at a gradual steering angle. Make certain that
at least 20% of the tractor’s weight is on the front wheels to maintain safe steerage. Slow
down on rough or uneven surfaces. (STI-01)
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Safety Section 1-11
SAFETY
Transport only at speeds where you can maintain control of the
equipment. Serious accidents and injuries can result from operating this
equipment at high speeds. Understand the Tractor and Implement and how it handles
before transporting on streets and highways. Make sure the Tractor steering and brakes
are in good condition and operate properly.
SAFETY
Only tow the Implement behind a properly sized and equipped Tractor
which exceeds the weight of the Implement by at least 20%. DO NOT
tow the Implement behind a truck or other type of vehicle. Never tow the
Implement and another Implement connected in tandem. Never tow the
Implement at speeds over 20 MPH. (STI-06)
SAFETY
Your driving vision may be reduced or impaired by the tractor, cab, or implement. Before
driving on public roadways identify any limited vision areas, and make adjustments to your
operating position, mirrors, and the implement transport position so that you can clearly
see the area where you will be traveling, and any traffic that may approach you. Failure to
maintain adequate vision of the public roadway and traffic can result in serious injury or
even death. (STI-10)
When the cutting head is folded for transport, the center of gravity of the Tractor is raised
and the possibility of overturn or tip-over is increased. Serious injury or even death could
result from a tractor turnover. Turn slowly and use extra care on hillsides. Never fold the
cutting head while on a hillside as the tractor might overturn. (SDM-2)
Maintenance and Service Safety Instructions and Practices
Make sure the PTO shield, integral driveline shields, and input shields
are installed when using PTO-driven equipment. Always replace any
shield if it is damaged or missing. (S3PT-8)
Relieve hydraulic pressure prior to doing any maintenance or repair work
on the Implement. Place the Implement on the ground or securely
blocked up, disengage the PTO, and turn off the tractor engine. Push
and pull the Remote Cylinder lever in and out several times prior to
starting any maintenance or repair work. (S3PT-09)
Always disconnect the main PTO Driveline from the Tractor before performing service on
the Implement. Never work on the Implement with the tractor PTO driveline connected and
running. Rotating Parts, Blades or Drivelines could turn without warning and cause
immediate entanglement, injury or death. (S3PT-11)
Always maintain the safety signs in good readable condition. If the safety signs are missing,
damaged, or unreadable, obtain and install replacement safety signs immediately. (SG-5)
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Safety Section 1-12
SAFETY
Do not modify or alter this Implement. Do not permit anyone to modify or alter this
Implement, any of its components or any Implement function. (SG-8)
Never work under the Implement, the framework, or any lifted
component unless the Implement is securely supported or blocked up
to prevent sudden or inadvertent falling which could cause serious
injury or even death. (SG-14)
Periodically inspect all moving parts for wear and replace when
necessary with authorized service parts. Look for loose fasteners, worn
or broken parts, and leaky or loose fittings. Make sure all pins have
cotter pins and washers. Serious injury may occur from not maintaining
this machine in good working order. (SG-21)
Do Not fill fuel tank while engine is running. Refuel only after engine has cooled down. If
fuel is spilled, move machine away from the area of the spill and avoid creating any source
of ignition until the spill has been cleaned up. (SG-28)
Perform service, repairs and lubrication according to the maintenance section. Ensure the
unit is properly lubricated as specified in the lubrication schedule and all bolts and nuts are
properly torqued. Failure to properly service, repair and maintain this Implement in good
operating condition could cause component failure and possible serious injury or even
death. (SG-35)
Use caution and wear protective gloves when handling sharp objects such as blades,
knives, and other cutting edges. Be alert to worn component surfaces which have sharp
edges. Sharp surfaces can inflict severe laceration injuries if proper hand protection is not
worn. (SG-37)
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Safety Section 1-13
SAFETY
Never attempt to lubricate, adjust, or remove material from the Implement while it is in
motion or while tractor engine is running. (SG-20)
SAFETY
SAFETY
All Safety Shields, Guards and Safety devices including (but not
limited to) - the Deflectors, Chain Guards, Steel Guards, Gearbox
Shields, PTO integral shields, and Retractable Door Shields should
be used and maintained in good working condition. All safety
devices should be inspected carefully at least daily for missing or
broken components. Missing, broken, or worn items must be
replaced at once to reduce the possibility of injury or death from
thrown objects, entanglement, or blade contact. (SGM-3)
Replace bent or broken blades with new blades. NEVER ATTEMPT TO STRAIGHTEN,
WELD, OR WELD HARDFACING ON BLADES SINCE THIS WILL LIKELY CRACK OR
OTHERWISE DAMAGE THE BLADE WITH SUBSEQUENT FAILURE AND POSSIBLY
CAUSE SERIOUS INJURY FROM THROWN BLADES. (SGM-10)
PARTS INFORMATION
Bush Hog mowers use balanced and matched system components for blade carriers, blades, cuttershafts,
knives, knife hangers, rollers, drivetrain components, and bearings. These parts are made and tested to Bush
Hog specifications. Non-genuine "will fit" parts do not consistently meet these specifications. The use of “will
fit” parts may reduce mower performance, void warranties, and present a safety hazard. Use genuine Bush
Hog mower parts for economy and safety. (SPBH-1)
SEE YOUR BUSH HOG DEALER
Be sure you have adequate knowledge of the property you will be working on. Take time to
make yourself aware of any area underwater or underground lines or cables. Contact with
buried lines or cable could result in serious injury or death. (STL-1)
In wet conditions where there is a likelihood of material collecting on the Implement, make
certain that this material is removed before traveling on public roadways. (STL-7)
Operating, servicing and maintaining this equipment can expose you to chemicals including
gasoline, diesel fuel, lubricants, petroleum products, engine exhaust, carbon monoxide, and
phthalates, which are known to the State of California to cause cancer and birth defects or
other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the
engine except as necessary, service your vehicle in a well-ventilated area and wear gloves
or wash your hands frequently when servicing your vehicle. Battery posts, terminals and
related accessories contain lead and lead compounds, chemicals known to the state of
California to cause cancer, birth defects or other reproductive harm. For more information go
to www.P65Warnings.ca.gov. This website, operated by California's Office of Environmental
Health Hazard Assessment, provides information about these chemicals and how
individuals may be exposed to them.
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Safety Section 1-14
SAFETY
Storage and Parking Safety Instructions and Practices
A rear Implement can fall if not properly supported. Always use the stand on the front hitch
(if equipped) or block up securely to prevent falling and possible crushing injury and/or
other injury from holding or lifting heavy components. Use the stand to stabilize the
implement during storage. (S3PT-3)
Concluding Safety Instructions and Practices
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Safety Section 1-15
SAFETY
In addition to the design and configuration of this Implement, including Safety Signs and Safety Equipment,
hazard control and accident prevention are dependent upon the awareness, concern, prudence, and proper
training of personnel involved in the operation, transport, maintenance, and storage of the machine. Refer
also to Safety Messages and operation instruction in each of the appropriate sections of the Tractor and
Equipment Manuals. Pay close attention to the Safety Signs affixed to the Tractor and Equipment. (SG-18)
SAFETY
Decal Location
SAFETY
NOTE: Bush Hog supplies safety decals on this product to promote safe operation. Damage to the decals may
occur while in shipping, use, or reconditioning. Bush Hog cares about the safety of its customers, operators,
and bystanders, and will replace the safety decals on this product in the field, free of charge (Some shipping
and handling charges may apply). Contact your Bush Hog dealer to order replacement decals.
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Safety Section 1-16
SAFETY
PART NO.
QTY.
LEVEL
DESCRIPTION
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
001.318
001.075
001.319
52740
001.317
001.695
001.320
D559
50065309
50078273
Serial Number Plate
1
4
1
1
1
1
1
1
1
1
NFS
WARNING
INSTRUCT
WARNING
WARNING
WARNING
CAUTION
WARNING
WARNING
LOGO
LOGO
SERIAL
Warning Decal, 540 RPM- Shielding
Grease Point Label
Warning Decal, Jackstand
Oil Leak Warning Decal
Warning Decal, Thrown Objects
Caution Decal, Disconnect
Warning Decal, Read Manual
Bush Hog Gen. Parts, Cali Prop 65
Bush Hog Decal 3.25” x 14.85”
DHM7 Model Decal
Serial Number Plate
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Safety Section 1-17
SAFETY
ITEM
SAFETY
SAFETY
Decals
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Safety Section 1-18
SAFETY
SAFETY
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Safety Section 1-19
SAFETY
SAFETY
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Safety Section 1-20
SAFETY
FEDERAL LAWS AND REGULATIONS
This section is intended to explain in broad terms the concept and effect of federal laws and regulations concerning
employer and employee equipment operators. This section is not intended as a legal interpretation of the law and
should not be considered as such.
Employer-Employee Operator Regulations
U.S. Public Law 91-596 (The Williams-Steiger Occupational and Health Act of 1970) OSHA
Title 29, Code of Federal Regulations Part 1928.57(a)(6). www.osha.gov
Operator instructions. At the time of initial assignment and at least annually thereafter, the employer shall
instruct every employee who operates an agricultural tractor and implements in the safe operating practices
and servicing of equipment with which they are or will be involved, and of any other practices dictated by the
work environment.
Keep all guards in place when the machine is in operation;
Permit no riders on equipment
Stop engine, disconnect the power source, and wait for all machine movement to stop before servicing,
adjusting, cleaning or unclogging the equipment, except where the machine must be running to be properly
serviced or maintained, in which case the employer shall instruct employees as to all steps and procedures
which are necessary to safely service or maintain the equipment.
Make sure everyone is clear of machinery before starting the engine, engaging power, or operating the
machine.
Employer Responsibilities:
To ensure employee safety during Tractor and Implement operation, it is the employer’s responsibility to:
1.
2.
3.
4.
Train the employee in the proper and safe operation of the Tractor and Implement.
Require that the employee read and fully understand the Tractor and Implement Operator’s manual.
Permit only qualified and properly trained employees to operate the Tractor and Implement.
Maintain the Tractor and Implement in a safe operational condition and maintain all shields and guards on the
equipment.
5. Ensure the Tractor is equipped with a functional ROPS and seat belt and require that the employee operator
securely fasten the safety belt and operate with the ROPS in the raised position at all times.
6. Forbid the employee operator to carry additional riders on the Tractor or Implement.
7. Provide the required tools to maintain the Tractor and Implement in a good safe working condition and provide the
necessary support devices to secure the equipment safely while performing repairs and service.
8. Require that the employee operator stop operation if bystanders or passersby come within 300 feet.
Child Labor Under 16 Years of Age
Some regulations specify that no one under the age of 16 may operate power machinery. It is your responsibility to
know what these regulations are in your own area or situation. (Refer to U.S. Dept. of Labor, Employment Standard
Administration, Wage & Home Division, Child Labor Bulletin #102.)
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Safety Section 1-21
SAFETY
This Act Seeks:
“...to assure so far as possible every working man and woman in the nation safe and healthful working
conditions and to preserve our human resources...”
DUTIES
Sec. 5 (a) Each employer(1) shall furnish to each of his employees employment and a place of employment which are free from
recognized hazards that are causing or are likely to cause death or serious physical harm to his employees;
(2) shall comply with occupational safety and health standards promulgated under this Act.
(b) Each employee shall comply with occupational safety and health standards and all rules, regulations and
orders issued pursuant to this Act which are applicable to his own actions and conduct.
OSHA Training Requirements
Contents
Acknowledgment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Safety Alerts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
A Word To The User/Operator . . . . . . . . . . . . . . . . . . . . 3
The Industrial/Agricultural Mower. . . . . . . . . . . . . . . . . 4
Follow A Safety Program . . . . . . . . . . . . . . . . . . . . . . . . 5
Prepare For Safe Operation . . . . . . . . . . . . . . . . . . . . . . 9
Start Safely. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Operate Safely . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Park Safely . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Shut Down Safely . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Perform Maintenance Safely . . . . . . . . . . . . . . . . . . . . 19
Final Word To The User. . . . . . . . . . . . . . . . . . . . . . . . . 26
Acknowledgment
We wish to acknowledge the contributions of the members of AEM’s Industrial/Agricultural Mower Manufacturers Council
to the preparation of this Safety Manual.
NOTICE OF COPYRIGHT PROTECTION
Copyright, 2010, by the Association of Equipment Manufacturers. All rights reserved. This work may not be reproduced or disseminated in whole or in part by any means
without the prior written permission of the Association of Equipment Manufacturers.
Copyright 2010© AEM (Association of Equipment Manufacturers)
Revised 01/03, 09/10
Foreword
This safety manual is intended to point out some of the
basic safety situations that may be encountered during
the normal operation and maintenance of your machine
and to instruct you in safety practices for dealing with
these conditions. This manual is NOT a substitute for
the mower manufacturer’s operator’s manual(s).
Additional precautions may be necessary, or some
instructions may not apply, depending on equipment,
attachments and conditions at the worksite or in the
service area. The manufacturer has no direct control
over equipment application, operation, inspection or
maintenance. Therefore, it is YOUR responsibility to
use good safety practices in these areas.
The information provided in this manual supplements
the specific information about your machine that is
contained in the manufacturer’s operator’s manual(s).
Other information that may affect the safe operation of
your machine may be contained on safety signs or in
insurance requirements, employer’s safety and training
programs, safety codes, local, state/provincial and
federal laws, rules and regulations.
2
Read and
Understand
Manuals Before
Operating
IMPORTANT! Before you operate the mower,
make sure you have the manufacturer’s
operator’s manual(s) for this machine and all
attachments. If the manufacturer’s manuals
are missing, obtain replacement manuals from
your employer, equipment dealer or directly
from the manufacturer. Keep this safety manual
and the manufacturer’s manuals with the
machine at all times. Read and understand all
manuals.
The AEM Mower Safety Practices video is
available to train and reinforce good safety
practices. Operators are encouraged to
periodically view the safety video.
Safety Alerts
Symbol
Signal Words
This Safety Alert Symbol means: “ATTENTION!
STAY ALERT! YOUR SAFETY IS INVOLVED!”
Signal words are distinctive words that will typically be
found on safety signs on the mower and other worksite
equipment. These words may also be found in this
manual and the manufacturer’s manuals. These words
are intended to alert the operator to a hazard and the
degree of severity of the hazard.
The Safety Alert Symbol identifies important safety
messages on equipment, safety signs, in manuals or
elsewhere. When you see this symbol, be alert to the
possibility of death or personal injury. Follow
instructions in the safety message.
DANGER
DANGER indicates a hazardous
situation which, if not avoided, will
result in death or serious injury.
WARNING
WARNING indicates a hazardous
situation which, if not avoided, could
result in death or serious injury.
CAUTION
CAUTION indicates a hazardous
situation which, if not avoided, could
result in minor or moderate injury.
Reasons Safety is Important:
NOTICE
— Accidents disable and kill.
NOTICE indicates a property
damage message.
— Accidents cost.
— Accidents can be avoided.
A Word To The User/Operator
It is YOUR responsibility to read and understand the
safety manual and the manufacturer’s manuals before
operating this machine. This safety manual takes you
step by step through your working day.
Hazard Recognition and Accident Prevention depend
upon you being alert, careful and properly trained in the
operation, transport, maintenance and storage of this
equipment.
Graphics have been provided to help you understand
the text.
Remember that YOU are the key to safety. Good safety
practices not only protect you but also protect the
people around you. Study and understand this manual
and the manufacturer’s manuals for your specific
machine. Make them a working part of your safety
program. Keep in mind that this safety manual is written
for industrial/agricultural mowers.
Contact the manufacturer of your equipment to answer
any questions about safe operation that remain after
studying the manufacturer’s operator’s manual(s) and
this safety manual.
Practice all other usual and customary safe
working precautions and above all:
REMEMBER — SAFETY IS UP TO YOU!
YOU CAN PREVENT SERIOUS INJURY OR
DEATH CAUSED BY UNSAFE WORK PRACTICES!
Read and
Understand All
Safety Signs
3
The Industrial/Agricultural Mower
Industrial/Agricultural Mower Types
Mowers are used for pasture clipping, crop residue
shredding, heavy brush cutting, waterways, right-ofways, roadside or highway mowing. Also, these mowers
are used for cutting grass and other growth in public
areas such as parks and cemeteries.
Flail
Boom
Rotary
Sickle Bar
Folding Wing Rotary
The Industrial/Agricultural Mower
Agricultural Disc Mower Types
Disc mowers are designed and equipped to cut hay
crops at higher field speed.
Disc mower/conditioners mow and condition crops.
Self-propelled windrowers mow and form conditioned
hay into windrows.
4
Disc Mower
Disc Mower
Conditioner
Self-propelled
Windrower
Follow A Safety Program
Protect Yourself
Wear personal protective clothing and Personal
Protective Equipment (PPE) issued to you or called
for by job conditions. You must ALWAYS wear safety
glasses with side shields.
You may also need:
— Hard hat
— Safety shoes
— Safety goggles or face shield
— Heavy gloves
— Hearing protection
— Reflective clothing
— Wet weather gear
— Respirator or filter mask
Wear whatever is needed—don’t take chances.
Avoid
Entanglement
WARNING! Prevent death or serious injury from
entanglement. Do not wear loose clothing or
accessories. Tie up long hair. Stay away from all
rotating components when the engine is running.
Contact, wrapping or entanglement with rotating or
moving parts could result in death or serious injury.
Follow A Safety Program
— Read, understand and follow the manufacturer’s
written instructions found in the operator’s manual(s)
and safety signs on mower and tractor.
— Have operational training with mower and tractor.
— Take advantage of training programs offered in
your area.
— Ask your equipment dealer or supervisor to explain
things you do not understand.
— Explain the written instructions in the operator’s
manual(s) and safety signs to those users or
operators who cannot read.
— Inspect the mower and tractor daily before operating.
Ensure all guards are in place and the equipment is
operating properly.
— Never smoke while operating. Never fill the fuel tank
with the engine running or near an open flame.
— Make sure you have adequate visibility and sufficient
lighting.
— Know the pinch points and rotating parts. Awareness
on your part can prevent accidents.
— Never attempt to operate the controls except from
the operator’s seat. Improperly controlled functions
could produce unexpected machine movement and
result in serious injury or death.
— Shut down the mower and tractor before dismounting.
(See page 18, Proper Equipment Shut Down
Practices.)
Read, Understand
and Follow Manuals
and Safety Signs
Avoid
Rotating Parts
Know and
Avoid Pinch
Points
5
Follow A Safety Program
Avoid Injury From Raised Equipment
Avoid Injury From High Pressure Fluid
Avoid possible crushing injury from falling mower or
other raised equipment.
Avoid fluid injection injury due to high pressure fluid leaks.
Avoid Crushing –
Block Up or
Securely Support
Mower
Before working near or under raised mower or
equipment parts:
— Securely support or block up raised mower or
equipment parts according to the operator’s manual.
— Securely support, block up or lock up wings with
approved locking devices or lower mower or
equipment parts to the ground.
— Use transport locks when transporting mower on
public roads.
High Pressure
Fluid Can Inject
into the Body
If any fluid is injected into the skin, it must be
removed within a few hours by a doctor familiar with
this type of injury.
Fluid leaks under pressure may not be visible. When
checking for leaks or working around pressurized systems:
— Read manufacturer’s operator’s manual(s) for
recommended safety practices.
— Wear a face shield or safety goggles for eye protection.
— Use a piece of cardboard or wood to check for leaks;
DO NOT use your hands.
— Relieve system pressure before disconnecting lines.
— Check for and repair damaged or leaking lines, pipes
and hoses.
— Check for and tighten loose connections.
— Purge air from system before operating.
Follow A Safety Program
Avoid Injury From Fire And Explosion
Set the parking brake, shut the mower and tractor
engine down and remove the key while filling the fuel
tank. Use extra caution when fueling a hot engine.
Never smoke while fueling. Avoid sparks by grounding
the fuel nozzle against the filler neck.
The fumes in an empty fuel tank are explosive. Never
weld or cut on fuel lines, tanks or containers.
Remove all trash or mowing debris from the machine
daily or as needed. Keep debris away from engine,
exhaust, slip clutches and other heat sources. Use
spark arrestors, as appropriate, on the engine exhaust
system. Make sure oily rags or other flammable material
are not stored on the machine.
Always use a nonflammable solvent when you
clean parts. Do not use gasoline, diesel fuel or other
flammable fluids.
Store all flammable fluids and materials away from your
machine and work area.
Know where fire extinguishers are kept—how
they operate—and what type of fire they are for.
Check readiness of fire extinguishers according to
manufacturer’s instructions. Make sure each tractor is
equipped with a fire extinguisher.
No Smoking
and No Open
Flames
Check for fuel, oil or hydraulic fluid leaks. Repair the
leaks and clean the machine before you operate it.
Ether/cold start fluid is flammable. Do not smoke
when using ether/cold start fluid. Always follow the
instructions on the can and in the manufacturer’s
operator’s manual(s) for your mower. Do not use ether/
cold start fluid if the engine is equipped with a glow plug
or other type of preheater.
6
Remove
Debris Daily or
As Needed
Follow A Safety Program
Be Alert!
For Safe Operation
Know where to get assistance. Know how to use a first
aid kit and fire extinguisher/fire suppression system.
You must be a qualified and authorized operator for
proper operation of your machine. You must clearly
understand the written instructions supplied by the
manufacturer, be trained—including actual operation of
the mower—and know the safety rules and regulations
for the worksite. It is a good safety practice to point
out and explain safety signs and practices and ensure
others understand the importance of following these
instructions.
Be Aware!
Take advantage of training programs offered.
Be Careful!
Human error is caused by many factors: carelessness,
fatigue, overload, preoccupation, unfamiliarity of operator
with the machine, drugs, and alcohol to name a few.
Damage to the tractor or mower can be fixed in a short
period of time, but injury, or death, has a lasting effect.
For your safety and the safety of others, encourage your
fellow workers to act safely.
Never Use Drugs
or Alcohol While
Operating
WARNING! Drugs and alcohol affect an operator’s
alertness and coordination and the operator’s ability
to safely operate the equipment. Never use drugs or
alcohol while operating the mowing equipment.
Never knowingly allow anyone to operate this
machine when their alertness or coordination is
impaired. An operator taking prescription or over-thecounter medication must consult a medical professional
regarding any side effects of the medication that would
hinder their ability to safely operate this equipment.
Follow A Safety Program
Know The Rules
Most employers have rules governing operation and
maintenance of equipment. Before you start work at a
new location, check with your supervisor or the safety
coordinator. Ask about the rules you will be expected
to obey.
The Occupational Safety and Health Administration
(OSHA) enforces federal laws within the United
States that apply to safe operation, application and
maintenance of equipment on a worksite. It is the
employer’s responsibility to comply with these laws.
An OSHA representative may periodically inspect a
worksite to see that these laws are being followed.
There may also be local or state/provincial laws or
international regulations that apply to this equipment
and its use, along with specific worksite or employer
rules. It is important that you know and comply with
all applicable laws and rules, including those requiring
operator training and certification.
Safety Rules
•
•
•
•
•
•
•
•
•
•
Know and
Understand
Rules of
Operation
These are some of the rules you must work by:
— A ROPS and seat belt-equipped tractor is a federal
government (OSHA) requirement for operator
protection during mowing operations. An enclosed
cab provides additional operator protection from
thrown objects. Check your mower operator's manual
to see if a tractor cab is also required.
— Wear and check that others are wearing proper
clothing and personal protective equipment.
— Inspect your machine and attachments before each use
as specified by the manufacturer and your employer.
— Know the limitations and operating characteristics of
your mowing equipment. Do not misuse it.
— Have all provided shields and guards properly
installed before operating the machine.
— Never modify or remove any part of the machine
(except for service—then make sure it is replaced).
7
Follow A Safety Program
Some Rules You Must Work By (continued)
Keep
Children
Away from
Equipment
— Only qualified and authorized individuals may operate
this equipment.
— Never allow children to play on, ride on or operate
the equipment. Children are not qualified to operate
this equipment.
— Do not allow any riders.
— Use three-point contact (handholds and steps) and
face the equipment when mounting or dismounting.
— Keep bystanders 300 ft (92 m) from the mowing
operation.
— Know the worksite before you use the mower. Be
aware of possible terrain hazards that you may
encounter. Remove or mark obstacles and debris that
could damage or be thrown by the mower.
— Only use attachments and parts that are approved by
the mower manufacturer.
— Make sure all attachments are lowered, set the parking
brake, shut off the engine and cycle the control levers.
Remove the key before leaving the tractor. (See page
18, Proper Equipment Shut Down Practices.)
— When transporting the mower on a trailer, follow the
manufacturer’s detailed instructions for loading, tying
down and unloading the mower.
Keep
Bystanders
Away
No Riders
Shut Down
Unattended
Equipment
Follow A Safety Program
Know The Equipment
Read and understand the DANGER, WARNING,
CAUTION and NOTICE safety signs and other
informational signs on the tractor and mower and in the
manufacturer’s operator’s manual. Ask your supervisor
or mower dealer to explain any information you do not
understand. Failure to obey safety instructions could
result in death or serious injury.
Read and
Understand All
Safety Signs
8
Make sure all the manufacturer’s protective structures,
guards, shields, screens and panels are in good repair,
in place and securely fastened. Damaged, missing or
weakened safety components can create a hazardous
situation for you as the operator. Never remove or
modify any safety components including thrown object
shielding on a mower.
Know the following about your tractor and mower:
— Function, purpose and use of all controls.
— Correct operation speeds.
— Slope and uneven terrain capabilities and proper
operation.
— Braking and steering characteristics.
— Turning radius and clearances.
— How to quickly stop equipment in an emergency.
Read and
Understand
Manuals Before
Operating
Prepare For Safe Operation
Check The Mower And Tractor Equipment
Before beginning your work day inspect the machine
and have all systems in good operational condition.
Walk-Around
Inspection
WARNING! Prevent possible crushing injury from falling
equipment. Hydraulic system or part failure could cause
unsupported equipment to fall. Do not go under raised
equipment unless it is properly supported according
to the operator’s manual.
— Perform daily and periodic service procedures as
instructed by the equipment manufacturer.
— Check for loose, broken, missing or damaged tractor
and mower parts. Repair or replace these parts.
— Check for proper tractor and mower attachments.
— Check for proper tractor and mower PTO rpm rating
match.
— Check mower blade(s) condition. Replace severely
worn, bent, gouged or nicked blades including the
blade bolts and fasteners. Never straighten or weld
on blades.
— Ensure thrown object shielding is properly installed
and in good condition. Repair or replace if damaged
or missing.
Maintain
Machine
Read Manual –
Block Up or
Securely Support
Mower
Prepare For Safe Operation
— Check that all guards and shields are in place and
that all equipment is in good operating condition. This
includes PTO driveline, gearbox and implement guards
and shields that are used for operator protection.
— Check for properly latched driveline yoke-end locking
devices.
— Check for damaged or leaky tractor and mower
hydraulic systems. Repair or adjust as needed.
WARNING! Hydraulic fluid under pressure can penetrate
the skin or eyes and cause serious injury, blindness or
death. Fluid leaks under pressure may not be visible.
Use a piece of cardboard or wood to find leaks, not
your hand. Wear eye protection. If fluid is injected
into the skin, it must be removed within a few hours by
medical personnel familiar with this type of injury.
— Keep the operator platform surface clean and free of
grease, oil, dirt, snow or ice. Steps and handholds
must be clean and functional.
— Ensure work lights are kept clean (if equipped). Check
that all lights work properly.
— Ensure the slow moving vehicle (SMV) sign, reflectors
and warning lights are in good condition and can be
clearly seen.
— Ensure all tools or loose objects are removed or
securely fastened while operating the machine.
— Check all safety signs for clarity. Replace damaged
signs.
Check for Missing/
Damaged Guards
and Shields
Check for
Leaks and Inspect
Hoses
Put Away
Tools
9
Prepare For Safe Operation
Know The Work Area
Before you operate the mower thoroughly inspect
the work area. Walk around the area and inspect the
surfaces you will travel on when using the mower.
Walk
Around the
Worksite
Locate and avoid:
— Holes
— Drop-offs
— Obstacles
(stumps)
— Excavations
— Standing water
— Deep mud
— Other utilities
— Wet spots
— Any conditions
which could
— Soft soil
cause collision,
— Rough spots
loss of control
— Power lines
or tipover
and apparatus
— Steep slopes
Look for debris and obstacles by walking the area before
you mow. Objects like wire, cable, rocks, tires, and metal
objects that could damage or be thrown by the mower
must be removed or marked clearly and avoided.
Correct unsafe conditions. Do not operate in problem
areas where debris and obstacles cannot be removed
or marked.
Analyze mowing area to determine:
— The most efficient mowing procedure.
— The height of the material to be mowed.
— Operating terrain conditions.
— How to best use forward mowing pattern.
— The potential for bystanders or passers-by to be
exposed to thrown objects.
Remove or
Mark Debris and
Obstacles
Look Out For Others
Before starting equipment:
— Walk around the equipment.
— Check for anyone under, on or near the equipment.
— Clear everyone from these areas.
— Sound a warning.
Prepare For Safe Operation
Mount And Dismount Tractor Properly
Always use three-point contact when mounting or
dismounting the tractor or mower. Face the machine
when you enter or leave the machine. Three-point
contact means that three out of four arms and legs are
in contact with the machine at all times during mount
and dismount.
Before mounting:
— Clean shoes and wipe hands. Clean steps and
handholds of snow, ice, mud or oil.
During mounting and dismounting:
— Use handholds and step plates.
— Never grab steering wheels or controls for handholds.
— Never mount or dismount from a moving tractor.
— Never mount or dismount while carrying tools or
objects that prevent three-point contact. Put parts or
tools down. Maintaining proper contact, climb and
then pick up the object.
10
Use
Three-Point
Contact
Clean Up
Slippery Areas
Prepare For Safe Operation
Tractor And Mower Controls Safety Test
Start the tractor following the specific procedures in the
manufacturer’s operator’s manual. These procedures
normally include:
— Fasten and adjust seat belt on your ROPS-equipped
tractor.
— Check parking brake for engagement.
— Check PTO disengagement.
— Check all controls for Park position.
— Warn others in area before starting tractor.
— Start tractor following tractor manufacturer’s
recommended starting procedures.
WARNING! Avoid serious injury or death from
unexpected machine movement. Start the engine only
from the operator’s position. Never attempt to start
the engine by shorting across starter terminals or
reaching the key from the ground or outside the cab.
After starting:
— Check all instruments, gauges and indicator lights for
normal operation.
— Check all tractor controls, steering and brakes for
proper function.
— Raise and lower mower to check for driveline
bottoming out or engagement problems.
— Check the equipment for excessive vibration and
unusual noises.
Use ROPS
and Seat Belt
Start Only
from Operator’s
Seat
Check
Instruments
and Controls
Prepare For Safe Operation
— Use proper equipment shut down practices before
inspecting equipment. Wait until all equipment
motion has stopped before dismounting the tractor or
mower.
— Do not operate mower unless tractor and mower are
running properly. Place a “Do Not Operate” tag on
the machine, remove the key and do not operate the
mower until the problem is corrected.
Power Takeoff System
Be sure to operate the tractor at the mower’s rated PTO
rpm speed.
When operating tractors with transmission-driven PTO
systems, a rotary mower will have a significant flywheel
effect. The mower may continue to propel a tractor with
a transmission-driven PTO system.
Do Not
Dismount Until
Equipment Motion
Has Stopped
Use a
“Do Not Operate”
Tag
Use Proper
PTO Speed
The tractor should be equipped and operated as follows:
— Install a driveline equipped with an over-running
clutch.
— Give yourself sufficient maneuvering room and time
by anticipating turns, stops and speed reductions.
11
Prepare For Safe Operation
Hitching Mower To Tractor
Read and
Understand
Manuals Before
Operating
Three-point hitch-mounted mowers:
— Refer to mower and tractor manufacturers’ manuals.
— Place tractor’s hydraulic power lift (rockshaft)
selector lever in down position to avoid unexpected
movement.
— Explain the hitching procedures to those operators
who cannot read.
— Front-end weights may be needed to maintain
steering control and front-end stability. Refer to the
manufacturers' operator's manual(s).
— When backing the tractor up to the mower, NEVER
allow anyone between the tractor and the mower.
— Attach the mower to the tractor three-point links and
securely pin in position.
— Securely attach the driveline to the tractor PTO.
Lower the master shield into place if it is movable.
Push and pull on the driveline to ensure it is locked
onto the PTO shaft.
Maintain
Proper Weight
Distribution
No One
Allowed Between
Tractor and
Mower
Avoid
Entanglement,
Use Guards and
Shields
Prepare For Safe Operation
Pull-type hitch-mounted mowers:
— Refer to mower and tractor manufacturers’ manuals.
— Remove three-point hitch quick coupler if equipped.
— Attach only to drawbar hitch.
— Adjust tractor drawbar length for 540 or 1000 rpm
PTO operation.
— When backing the tractor up to the mower, NEVER
allow anyone between the tractor and the mower.
— Properly attach the mower safety tow chain to the
tractor.
— Securely attach the driveline to the tractor PTO. Push
and pull on the driveline to ensure it is locked onto
the PTO. Lower the master shield into place.
— Hook up the mower hydraulic hoses to the tractor.
— Make sure the wings, or raised mower decks, are
supported by the cylinders before removing the
transport locks. Never use force to release the
transport or wing locks. The wings or deck could fall
and crush you.
540
540 RPM
RPO PTO
PTO
1-3/8"
1-3/8"66SPLINE
SPLINE
14IN
Tractor
Drawbar
Adjustment
1000
1000 RPM
RPO PTO
PTO
1-3/8"21
21SPLINE
SPLINE
1-3/8"
16IN
1000
1000RPM
RPOPTO
PTO
1-3/4" 20 SPLINE
SPLINE
20IN
Confirm Wings Are
Supported Before
Releasing Locks
Avoid
Entanglement,
Use Guards and
Shields
12
Start Safely
Make The Right Start
Mow only in daylight or good artificial light conditions.
Avoid serious injury or death from mower-thrown
objects or blade contact:
— Keep chain shields, flexible or solid deflector shields
or discharge chutes in place and in good repair.
— Keep bystanders at least 300 ft (92 m) from mowing
operation.
— Never direct mower discharge toward anyone.
— Keep hands, feet and other body parts away from
rotating parts, blades and discharge openings.
— Do not operate mower in transport position.
Do not approach a mower until all motion has stopped.
Mower PTO drive engagement:
— Raise mower to maximum cutting height.
— Engage PTO at low engine rpm.
— Increase engine rpm to mower’s rated rpm PTO speed.
— Lower mower to desired cutting height.
— Stop and shut down immediately if the mower strikes
an obstruction.
— Inspect and repair any mower damage before
resuming mowing.
— Do not operate mower with severe vibrations or with
unusual noise.
Rotating Blades –
Keep Away
Do Not Operate a
Damaged Mower
Mower-Thrown Objects
Depending on the designed purpose, mowers are
designed to cut grass, weeds, brush and crops. The
mower blades have been designed and tested for
rugged use. The mower blades, however, are not
intended to contact solid objects like rocks, concrete
or metal. Such impact can cause broken objects to be
thrown up to 300 ft (92 m). Bystanders should never
be within 300 ft (92 m) of an operating rotary mower or
within 100 ft (30 M) of a properly equipped disc mower.
Operate Safely
Mower shielding is designed to reduce the risk of thrown
objects and must be properly maintained and in place
during mowing operations.
The risk of serious injury or death from thrown objects
can be significantly reduced by following three rules.
If all of these safety rules are not followed, the
mowing operation must be stopped if anyone comes
within the safety limit for the mower type.
First — Inspect the area prior to mowing and remove
stones, branches, wire, cable, metal, glass and other
solid objects before operating. Any objects that cannot
be removed must be clearly marked and carefully
avoided by the operator.
In non-crop areas with grass and weeds high enough to
hide objects that could be struck by the blades, inspect
the area and remove or mark large debris or obstacles.
Follow
All Mower
Safety Rules
Second — Mower-thrown object shielding must be
used when operating near roads, parks, populated
areas or other areas where thrown objects could
injure bystanders or damage property. Follow the
manufacturer's operator's manual.
Third — Cross diagonally when mowing through
ditches, sharp dips, and drops. Raise the mower to
prevent the mower blades from hitting the ground.
Mow the area at an intermediate height. Inspect the area
closely and remove or mark any remaining debris or
obstacles. Mow again at desired final height.
13
Operate Safely
Mower-Thrown Objects (continued)
Disc Mowers — When using a disc mower it is
important to know the area to be mowed. If the operator
has mowed the field before and is familiar with all
obstacles that may be present, it is sufficient to watch
ahead of the mower path for any additional objects that
may have entered the field. Be ready to stop or avoid
any objects that could be hazardous if thrown by the
mower. If you plan to mow an unfamiliar field and it is
next to a traveled road or people may be within 100
ft (30 m) of the mower you must inspect, and clean or
mark the field.
Do Not Mow
in Reverse
Use Proper
Ground Speed
Mowing Ground Speed
Mowing In Reverse
Do not mow while traveling in reverse. Objects are more
likely to be thrown and can travel further.
Shut off the PTO, wait for the blades to stop turning,
raise the mower, and then back up.
Mow traveling in the forward direction.
Proper ground speed depends on terrain conditions and
grass type, density and height to be cut:
— Normal ground speed range is 2 to 5 mph.
— Use slower ground speed for mowing tall, dense grass.
— Use faster ground speed for mowing medium height,
thin grass and under smooth terrain conditions.
— Use slower ground speed for mowing in rough,
sloping or unfamiliar terrain.
Disc mowers are designed to use faster ground speeds
for operating in fields clear of debris and surface hazards.
Operate Safely
Extremely Tall Grass Mowing
You may need to mow extremely tall, non-crop grass
twice. (See page 13, Mower-Thrown Objects.)
First mowing pass:
— Shut the mower and tractor down using proper
equipment shut down practice before dismounting
tractor. (See page 18, Proper Equipment Shut Down
Practices.)
— Inspect the area and remove or mark debris and
obstacles.
— Cut grass higher (10-15 inches) to avoid hidden objects.
Second mowing pass:
— Shut the mower and tractor down using proper
equipment shut down practice before dismounting
tractor.
— Inspect the area and remove or mark debris and
obstacles.
— Cut grass at desired height and, when possible,
90 degrees to the first mowing pass.
14
Stop Blade
Before
Unclogging
Provide Adequate
Clearance for
Mower Swing
Watch Equipment Clearances
Three-point hitch and side-mounted mowers have a
larger turning arc than pull-type mowers. Allow sufficient
clearance for mower swing while turning.
Do not allow bystanders near the tractor and mower
when moving or transporting the tractor and mower.
Operate Safely
Under Mount Mower Safety Practices
When mowing with an under mount mower:
— Keep removable discharge chute in place and over
discharge opening.
— Never stand on a mower housing when the tractor
engine is operating.
— Distribute grass clippings with discharge chute facing
mowed area.
— Before clearing a clogged mower or discharge
chute, shut down your machine using proper
equipment shut down practice. (See page 18, Proper
Equipment Shut Down Practices.)
Never Stand
on Mower –
Keep Away
Keep Chute
in Place
Stop Blade
Before
Unclogging
Operate Safely
Wing Or Boom Mower
Overhead Obstruction Hazards And Risks
Check for overhead obstructions with raised wing
or boom mowers to avoid serious injury or death by
contact with:
— Electrical power lines and apparatus.
— Low tree limbs.
— Other overhead obstructions.
— Maintain specified distance from power lines and
apparatus. Never approach energized power lines or
apparatus with any part of your machine unless all
local, state/provincial and federal (OSHA) required
safety precautions have been taken. Use extreme
caution.
Do Not
Approach Energized
Power Lines
Stay Clear
of Energized
Equipment
DANGER! Avoid electrocution or serious injury from
contact with or inadequate clearance to energized
power lines or apparatus. Do not allow the machine or
attachment to approach or contact any power line.
Do not approach or touch any machine in contact
with a power line.
15
Operate Safely
Wing And Side Mount Mowers Safety Practices
Raised wing positions reduce shielding protection and
increases the thrown object and blade contact hazard
risks.
Avoid possible serious injury or death by thrown
objects or blade contact from raising and lowering
wings during mowing operations:
— Do not mow with bystanders within 300 ft (92 m) of
the mower.
— Be sure no one is near mower while raising or
lowering wings.
— Shut off the PTO and wait for all rotating elements to
stop before raising the mower deck or wing section.
— Only raise wing to clear objects in the mowing path
or to match ground slope.
— Lower raised wing to ground after clearing object or
ground slope conditions.
— Stop mowing if anyone approaches within 300 ft
(92 m) of mowing area.
300 ft
(92 m)
Keep Bystanders
Away from
Mowing Area
Avoid Hitting
Obstructions
Ditch Bank Mowing Safety Practices
Use extreme care when mowing ditch banks. Watch for
washouts, eroded areas and mowing obstructions along
the ditch banks. Hitting obstructions with side-mount
or boom mowers may swerve the tractor’s front end
toward the ditch.
Operate Safely
Raised wing and boom mower ditch bank operations may
reduce the mower’s thrown object shielding effectiveness
for the mower operator’s protection.
— Use enclosed ROPS cabs, special protective
enclosures and other operator shielding available from
the manufacturer when performing these operations.
— Inspect mowing area and remove or mark all foreign
objects and debris to be avoided by mower.
Use
Enclosed ROPS
Cabs or Protective
Enclosures
Uneven Terrain Mowing Safety Practices
Tractor and mower stability is reduced on slopes and
uneven terrain.
As in all conditions when mowing, use tractors
equipped with ROPS and seat belt. Make sure the
ROPS are raised and locked in place and always
wear your seat belt.
Prevent tractor and mower overturns and maintain
equipment stability control:
— Review tractor and mower operator’s manuals for
operating safety practices on slopes and uneven
terrain conditions. Explain the practices to those
users and operators who cannot read.
— Avoid extremely steep slope operations.
16
Read and
Understand
Manuals Before
Operating
Use ROPS
and Seat Belt
Operate Safely
Uneven Terrain Mowing Safety Practices
(continued)
Maintain
Control, Use Low
Speeds
— Use extreme care to maintain control over the
equipment when operating in these conditions.
— Increase tractor stability by adding wheel weights,
ballast and increasing wheel spacing to maximum.
Refer to operator’s manual for recommendations.
— Maintain minimum ground speed.
— Make wide and gradual turns.
— Avoid sudden starts, stops, and turns when operating
up, down, or across slopes.
— Do not raise rear-mount or side-mount mowers or
mower wings from the ground during these operations.
— Keep alert for holes, bumps, ruts, rocks, stumps or
other obstructions that could overturn the machine.
— Avoid slippery ground conditions that could cause
loss of control and overturn of tractor and mower.
— Avoid bottoming and striking the ground by diagonal
crossing of sharp dips and drops.
Add Ballast,
Widen Wheel
Spacing
Avoid Ruts,
Bumps, Holes
Use extreme care in maintaining equipment stability
during all uneven terrain and slope mowing operations.
You are the final judge as to any slope that can be safely
negotiated.
Operate Safely
Road Transport Safety Practices
Before operating on public roads:
— Refer to tractor and mower manufacturers’ operator’s
manuals for instructions.
— Explain the instructions to those users or operators
who cannot read.
— Check local regulations for required equipment
markings, lights, flashers, etc., while traveling on
public roads. Lights are required on mowers that
obscure tractor taillights and/or warning lights.
— When transporting the mower on a trailer, follow the
manufacturer’s detailed instructions for loading, tying
down and unloading the mower.
Before transporting on public roads:
— Disengage PTO power to mower.
— Raise mower into transport position and engage
transport lock.
— Lock mower wings in the transport position with
approved locking devices.
— Attach towing safety chain between pull-type mower
and tractor.
— Make sure lights, warning lights and reflectors are in
place and visible.
— Check SMV (Slow-Moving Vehicle) emblem for
visibility to any rear-approaching vehicle.
While transporting on public roads:
— Obey all local traffic regulations.
— Approach intersections with caution.
— Observe speed and traffic control signs.
— Avoid panic stops and sharp turns.
Be a courteous operator and pull over periodically and
allow traffic to pass.
Read and
Understand
Manuals Before
Operating
STOP
YIELD
Obey Traffic
Regulations
17
Park Safely
Parking Safety Practices
— Use designated or out-of-traffic areas.
— Use firm level ground locations.
— Set parking brake.
— Lower raised equipment to ground.
P
Shut down the mower and tractor using proper
equipment shut down practice before dismounting
tractor. (See page 18, Proper Equipment Shut Down
Practices.)
Set
Parking Brake
Lower Raised
Equipment to
Ground
Sloping ground parking locations:
— Position equipment across slope.
— Set parking brakes.
— Lower raised equipment to ground.
— Block tractor wheels.
Before temporarily parking and leaving disabled
equipment near traffic areas:
— Remove equipment from public roads.
— Set out warning flags.
— Use tractor flashing warning lights.
Shut Down Safely
Proper Equipment Shut Down Practices
PTO
Make proper equipment shut down an important habit.
Properly shutting down a tractor and mower can
prevent accidents from occurring when the mower is left
unattended. Shut down the mower following the specific
procedures in the manufacturer’s operator’s manual.
These procedures will normally include:
— Reduce engine speed.
— Disengage PTO clutch and transmission drive.
— Idle engine for gradual cooling.
— Place all controls in PARK position.
— Set the parking brake.
— Lower mower to ground.
— Lower wings of wing mowers to ground.
— Shut off engine, lock ignition and remove key from
the machine and take it with you.
— Wait for all moving parts to stop before dismounting.
— Relieve hydraulic pressure by moving hydraulic
controls several times in all directions.
— Lock anti-vandalism covers and closures, if
equipped, when equipment is unattended.
— Dismount carefully maintaining three-point contact.
18
Disengage PTO,
Set Brake
STOP
P
Lower Raised
Equipment to
Ground
Wait for
Rotating Parts
to Stop
Remove Key,
Lock Ignition, Take
Key With You
Shut Down Safely
Dismounting Properly
— Never dismount from moving equipment.
— Never jump from any machines.
— Dismount carefully.
— Check for slippery steps.
— Keep feet and hands away from controls.
— Use handholds and steps during dismount.
— Face machine and use three-point contact
(2 hands and 1 foot or 2 feet and 1 hand).
Wait for
Moving Parts
to Stop
Use Three-Point
Contact,
Face Machine
Perform Maintenance Safely
Maintain Your Equipment
WARNING! Do not modify equipment or add
components not approved by the manufacturer. Use
parts, lubricants and service techniques recommended
by the manufacturer.
Maintain
Equipment
Be sure to maintain the equipment according to
manufacturer’s instructions. Regularly check the
operation of the protective and safety devices.
Do not perform any work on a tractor or mower unless
you are authorized and qualified to do so.
If you have been authorized to do maintenance, read
the operator’s and service manuals. Study the
instructions; check the lubrication charts; examine all
the instruction messages on the machine. Maintenance
can be hazardous unless performed properly. Be sure
you have the necessary skill, information, correct tools
and equipment to do the job.
Mower Parts And Your Safety
Mower manufacturers use specific fasteners and
specially designed parts to meet mowing operations
requirements. Critical parts (self-locking blade bolts,
blades, pins, shields and other special items) have
specific strength, design and fit requirements for the
make and model mower you are using.
Avoid possible death or serious injury from unapproved
parts or modifications:
— Do not substitute common hardware for original
manufacturer’s blade bolts or other special part items.
— Do not substitute for blades, pins, shields or other
critical parts.
— Do not use higher strength bolts to replace original
manufacturer’s shear bolts.
19
Perform Maintenance Safely
Prepare Yourself
Wear personal protective clothing and Personal
Protective Equipment (PPE) issued to you or called
for by job conditions. You must ALWAYS wear safety
glasses with side shields.
You may also need:
— Hard hat
— Safety shoes
— Safety glasses, goggles or face shield
— Apron and gloves
— Hearing protection
— Welding helmet or goggles
— Respirator or filter mask
Wear whatever is needed—don’t take chances.
Avoid
Rotating Parts
Keep hands—and clothing—away from all moving
parts. Don’t wear dangling ties, loose sleeves, rings,
watches, or long hair.
WARNING! Prevent death or serious injury from entanglement. Do not wear loose clothing or accessories. Stay
away from all rotating components when the engine is
running. Contact, wrapping or entanglement with rotating
or moving parts could result in death or serious injury.
Avoid
Pinch Points
Perform Maintenance Safely
Wear a rubber apron and rubber gloves when working
with corrosives. Wear gloves and safety shoes when
handling wooden blocks or sharp-edged metal.
Clean
Slippery Surfaces
Always use safety glasses, goggles or a face shield. They
provide eye protection from fluids under pressure, during
grinding and while servicing batteries. Protection is also
needed from flying debris, liquids and loose material
produced by equipment, tools and pressurized air/water.
Wear a face shield and follow manufacturer's instuctions
when you disassemble spring-loaded components or work
with battery acids. Wear a welding helmet or goggles with
a shaded filter when you weld or cut with a torch.
Do not sand, grind, flame-cut, braze or weld without a
NIOSH-approved respirator or appropriate ventilation.
If welding is required on this machine, refer to the
manufacturer’s operator's or service manuals or consult
your equipment dealer for proper procedures.
Keep pockets free of all objects that could fall out—and
drop into machinery.
Handle tools and heavy parts sensibly—with regard
for yourself and other persons. Lower items—don’t
drop them.
20
Ventilate
Work Area
Prepare The Work Area
— Position the mower in a level area out of the way of
other working equipment.
— Make sure there is adequate light, ventilation and
clearance.
— Remove oil, grease or water to eliminate any slippery
surfaces.
— Clean around the area to be serviced to minimize
contamination.
Perform Maintenance Safely
Prepare The Machine
Stored energy sources (electrical, mechanical, hydraulic,
pneumatic, chemical, thermal, etc.) must be controlled
or reduced to a practical minimum before performing
any maintenance, repair or service procedures.
Safety practices to prevent potential injuries from
energy-releasing sources:
— Disengage PTO before shutting off engine.
— Place controls in PARK or NEUTRAL before shutting
off engine.
— Set parking brake or block wheels.
— Allow all moving parts to stop.
— Lower mower to ground.
— Lower wings to ground on wing mowers.
— Shut off tractor engine.
— Relieve hydraulic system pressure by moving controls
several times in all directions.
— Lock ignition, remove key and take it with you.
— Look and listen for evidence of moving parts before
dismounting.
— Securely support or block up mower before working
underneath mower or other lifted components.
— Securely support, block up, or lock up mower wings
with approved locking devices before working near or
underneath a wing mower.
— Relieve pressure before disconnecting or
disassembling any pressurized system.
— Block or relieve spring pressure before disassembling
any spring-loaded mechanism.
— Securely support or block up any raised machine
component before working on it.
— Avoid flames, sparks, or smoking near any fuel,
hydraulic fluid or other flammable material such as
mowing debris.
Prepare
Machine Systems
for Service
Perform Maintenance Safely
Attach a “DO NOT OPERATE” warning tag to the control
levers and remove the ignition key if the mower should
not be operated. Take the key with you.
Install approved support device(s) when working under
or near raised equipment.
WARNING! Unsupported raised mowers or other
equipment may drop unexpectedly. Never go under
equipment when raised unless supported by an
approved support device(s). Death or serious crushing
injury could result from falling equipment.
Use a
“Do Not Operate”
Tag
Use
Approved
Support Device
Remove only guards or covers that provide access to
the area being serviced. Replace all guards and covers
when work is complete.
Replace
All Guards
21
Perform Maintenance Safely
Use Proper Ventilation
If it is necessary to run an engine in an enclosed area,
remove the exhaust fumes from the area with an
exhaust pipe extension. If you do not have an exhaust
pipe extension, make sure you open the doors and get
outside air into the area.
WARNING! Prevent possible injury. Never work on
machinery with the engine running unless instructed
by the manufacturer’s manuals for specific service.
WARNING! Never operate any type of engine without
proper ventilation—EXHAUST FUMES CAN KILL.
Make sure the hoists or jacks you use are in good repair.
Never use jacks with cracked, bent, or twisted parts.
Never use frayed, twisted or pinched cables. Never use
bent or distorted hooks.
Remove
Key and Read
Maintenance
Manual
Use Jacks And Hoists Carefully
Safety stands or blocks must be located on a rigid part
of the mower. Do not position stands under axles or
wheel supports that may rotate.
Ventilate
Work Area
If you must work beneath raised equipment, always use
wood—not concrete—blocks, jack-stands or other
rigid and stable supports. When using jacks or hoists
always be sure they are adequately supported.
Use Proper
Support for Raised
Equipment
WARNING! Prevent possible crushing injury. Never
use concrete blocks for supports. They can collapse
under even light loads.
Perform Maintenance Safely
Common Maintenance Safety Practices
Fuel Hazards
WARNING! Always use approved fuel containers
and/or dispensing equipment.
Fuels are flammable, so observe these practices to
reduce the possibility of a serious accident.
— Shut off engine and ignition during refueling.
— Always ground the fuel nozzle against the filler neck
to avoid sparks.
— Keep sparks and open flames away from fuel.
— Do not smoke while refueling or when handling fuel
containers.
— Do not cut or weld on or near fuel lines, tanks or
containers.
— Do not overfill the tank or spill fuel. Clean up spilled
fuel immediately.
Engine Coolant Hazards
Liquid cooling systems build up pressure as the engine
gets hot, so use extreme caution before removing the
radiator cap.
22
Be sure to:
— Stop the engine and wait for the system to cool.
— Wear protective clothing and safety glasses.
— Turn the radiator cap slowly to the first stop to allow
the pressure to escape before removing the cap
completely.
No Smoking
and No Open
Flames
Remove
Radiator Cap
Slowly
Perform Maintenance Safely
Hydraulic System Hazards
The hydraulic system is under pressure whenever the
engine is operating and may hold pressure even after the
engine is shut off. Cycle all hydraulic controls including
the auxiliary hydraulic control after the engine is shut
down. Relieve trapped pressure in the lines after the
attachments are shut down and resting on the ground.
During inspection of the hydraulic system:
— Wait for fluid to cool before disconnecting the lines.
Hot hydraulic fluid can cause SEVERE BURNS.
— Do not use your hand to check for leaks. Instead,
use a piece of cardboard or paper to search for leaks.
— Wear appropriate eye protection. Hydraulic fluid can
cause permanent eye injury.
WARNING! Hydraulic fluid under pressure can penetrate
the skin or eyes and cause serious injury, blindness or
death. Fluid leaks under pressure may not be visible.
Use a piece of cardboard or wood to find leaks, not
your hand. Wear a face shield or safety goggles for
eye protection. If fluid is injected into the skin, it must
be removed within a few hours by medical personnel
familiar with this type of injury.
When venting or filling the hydraulic system, loosen the
filler cap slowly and remove it gradually.
Never reset any relief valve in the hydraulic system to a
pressure higher than recommended by the manufacturer.
Wear
Eye Protection
High Pressure
Fluid Can Inject
Into the Body
Perform Maintenance Safely
Electrical System Hazards
Before working on the electrical system, disconnect the
battery cable(s).
— Remove the battery negative (-) cable(s) first.
— When reconnecting the battery, connect the battery
negative (-) cable(s) last.
The liquid in batteries contains acid, which is a POISON
and can cause SEVERE CHEMICAL BURNS.
with clean water. If electrolyte is ingested, seek
medical attention immediately. NEVER give fluids that
would induce vomiting.
Wear
Face Protection
Avoid Injury
— Wear a face shield to prevent contact with your eyes.
— Wear chemical-resistant gloves and clothing to keep
electrolyte off your skin and regular clothing.
WARNING! Electrolyte will damage eyes or skin
on contact. Always wear a face shield to avoid
electrolyte in eyes. If electrolyte contacts eyes, flush
immediately with clean water and get medical attention.
Wear chemical-resistant gloves and protective
clothing to keep electrolyte off skin. If electrolyte
contacts exposed skin or clothing, wash off immediately
Wear
Protective
Clothing
23
Perform Maintenance Safely
Avoid Explosion
WARNING! Avoid possible serious injury from
explosion. Lead-acid batteries produce extremely
explosive gases especially when being charged. Keep
arcs, sparks, flames and lighted tobacco away.
— Do not smoke near batteries.
— Keep arcs, sparks and open flames away from
batteries.
— Provide adequate ventilation.
Never check the battery by placing a metal object
across the battery posts — the resulting spark could
cause an explosion.
WARNING! Avoid possible serious injury from battery
explosion. Do not charge a battery or boost start the
engine if the battery is frozen. Warm to 60°F (15.5°C)
or the battery may explode and could cause serious
injury.
Safety rules during battery boost starting:
— Follow the instructions for proper “battery boost
starting” as specified in the manufacturer’s manual.
— Be sure the machines are not touching.
— Observe the polarity of the batteries and connections.
— Make the final cable connection to the engine or the
furthest ground point away from the battery. Never
make the final connection at the starter or dead
battery—sparks may ignite the explosive gases
present at the battery.
— When disconnecting cables after jump starting,
remove the cables in reverse order of connection
(e.g., final connection first).
Avoid Sparks
and Open Flames
Near Batteries
For
Boost Starting
Observe Polarity
and Make Final
Connection at
Ground Point
Perform Maintenance Safely
Tire And Wheel Maintenance
Check your tires and wheels daily because the stability
of the tractor and mower can be dramatically affected
by tire pressure or damage to tires or wheels.
Check tires for:
— Correct pressure.
— Cuts and bulges.
— Nails or other punctures.
— Uneven or excessive wear.
— Condition of valve stems and caps.
Check wheels for:
— Damage to the rims.
— Missing or loose lug nuts or bolts.
— Misalignment.
All tire service should be performed by a qualified tire
service center or by an authorized service person who
has been properly trained in the procedures and use of
safety equipment designed for tire servicing.
24
Check Tires
and Wheels for
Damage
Maintain
Proper Tire
Pressure
Perform Maintenance Safely
Tire And Wheel Maintenance (continued)
WARNING! The types of wheels and tires usually
found on this equipment require special care when
servicing to prevent death or serious injury.
Do not inflate the tires above the recommended
pressure. Be sure to replace tire ballast if equipped. See
manufacturer’s specifications for ballast requirements.
Keep wheel lug nuts tightened to manufacturer’s
recommendations.
Never cut or weld on a wheel with an inflated
tire mounted on it. This could cause explosive
decompression.
Check that the tire size and wheel are correctly matched.
When replacing the tires, ensure the tires are of the
appropriate rating specified by the manufacturer.
Tires should not be operated at speeds higher than their
rated speed. Most agricultural tires are rated for 20mph
maximum speed.
A rise in tire pressure during operation is normal, and
should NOT be reduced.
Never reinflate a tire that has been run flat or seriously
underinflated without removing the tire from the wheel.
Have the tire and wheel closely inspected for damage
before remounting.
Avoid
Tire Explosion
When adding air to a tire, do so from a distance. Use
a long hose with self-attaching chuck. Always stand
behind tread when adjusting tire pressure.
Do not inflate tires with flammable gases or from
systems using an alcohol injector.
Perform Maintenance Safely
Complete Service And Repairs Before Machine
Is Released
Tighten all bolts, fittings, and connections to torques
specified by the manufacturer.
Verify
Service Work
When
Completed
Install all guards, covers, and shields after servicing.
Replace or repair any damaged parts. Refill and
recharge pressure systems only with manufacturer
approved or recommended fluids.
Start the engine and check for leaks. (See page 23,
Hydraulic System Hazards.) Operate all controls
to make sure the tractor and mower are functioning
properly. Test the machine if necessary. After testing,
shut down and check the work you performed. Are
there any missing cotter pins, washers, locknuts, etc.?
Recheck all fluid levels before releasing the equipment
for operation.
All parts should be inspected during repair and replaced
if worn, cracked or damaged. Excessively worn or
damaged parts can fail and cause injury or death.
Mower Blade Maintenance
Do not take chances using damaged or bent blades.
The mower manufacturers from the Association
of Equipment Manufacturers (AEM) and the Farm
Equipment Manufacturers Association (FEMA) advocate
that you DO NOT reuse, straighten, hard face or weld
mower blades. Death or serious injury could result if a
broken blade is thrown from a mower.
Replace any damaged or illegible safety signs.
25
Perform Maintenance Safely
Mower Blade Maintenance (continued)
— How are mower blades made?
Mower blades are made of high strength alloy spring
steel. They are hot-forged and shaped to meet the
manufacturer’s individual specifications, then heat
treated and tempered to a high strength, ductile state
to reduce the possibility of breaking while mowing.
Blades are tested to ensure they meet strength,
hardness, and ductility standards. If a blade fails to
meet any of these specifications, it will not be used
on the mower.
— What happens when a mower blade bends?
It takes a great amount of impact force to bend
the blade. This impact force often results in the
blades being gouged or chipped. After a blade
is damaged by a gouge or chip a blade failure is
much more likely to occur. When a blade is severely
bent, a microscopic crack may be created in the
blade. Straightening the blade does not remove or
repair this crack, but may cause additional cracks.
Additional stresses during mowing operations can
result in an unexpected blade failure.
— Avoid bending blades. Help prevent mower blades
from bending or cracking by avoiding contact with
solid objects. Mower blades are intended to cut
grass, shrubs, woody vegetation, and small trees and
limbs. They are not intended to contact solid objects
such as rocks, concrete, or steel posts. Inspect the
area prior to mowing. Remove or clearly mark any
solid objects and mow around them.
— Replace damaged blades! Inspect the mower blade(s)
daily or after hitting any solid object. If a mower blade
becomes damaged (bent, gouged, cracked) or worn
more than 25 percent of the original size, it should
be removed and replaced with a new blade. Always
use the original manufacturer’s blades. Aftermarket
brand blades may not meet the mower manufacturer’s
strength, hardness and ductility requirements.
— Do not take chances mowing with damaged or
bent blades. Using a damaged or straightened
mower blade can result in the blade breaking and
being thrown into the operator or a bystander causing
death or serious injury. The price of a new blade is
small compared to the potential for the serious injury
that could result from a bent or broken blade being
thrown from the mower.
Final Word To The User
You have just finished reading the AEM Industrial and
Agricultural Mower Manual. It is impossible for this
manual to cover every safety situation that you may
encounter on a daily basis. Your knowledge of these
safety precautions and your application to the
basic rules of safety will help to build good judgment
in all situations. Our objective is to help you develop,
establish and maintain good safety habits to make
operating an Industrial and Agricultural Mower easier
and safer for you.
This manual is another in a series on the safe operation of machinery published by AEM.
Many pictorials in this safety manual can be found and downloaded at http://pictorials.aem.org.
For additional publications visit our website at www.safetymaterials.org.
ASSOCIATION OF
EQUIPMENT MANUFACTURERS
e-mail safetymaterials@aem.org
www.aem.org
26
Contenido
Reconocimiento . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Introducción . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Alertas de seguridad . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Palabras para el usuario/operador . . . . . . . . . . . . . . . . 3
Cortadora de césped industrial/para agricultura . . . . 4
Cumplimiento del programa de seguridad . . . . . . . . . 5
Preparación para una operación segura . . . . . . . . . . . 9
Arranque con seguridad . . . . . . . . . . . . . . . . . . . . . . . 13
Operación con seguridad . . . . . . . . . . . . . . . . . . . . . . 13
Estacionamiento seguro . . . . . . . . . . . . . . . . . . . . . . . 18
Apagado con seguridad . . . . . . . . . . . . . . . . . . . . . . . 18
Realización de mantenimiento con seguridad . . . . . 19
Palabras finales para el usuario . . . . . . . . . . . . . . . . . 26
Reconocimiento
Deseamos reconocer las contribuciones de los miembros del Consejo de Fabricantes de Cortadoras de Césped
Industriales/para Agricultura para la preparación de este Manual de seguridad.
AVISO DE PROTECCIÓN DE COPYRIGHT
Copyright, 2010, por la Asociación de Fabricantes de Equipos (Association of Equipment Manufacturers). Todos los derechos reservados. Queda prohibida la reproducción o
difusión parcial o total de este trabajo por cualquier medio sin consentimiento previo por escrito de la Asociación de Fabricantes de Equipos.
Copyright 2010© AEM (Asociación de Fabricantes de Equipos)
Revisado el 01/03, 09/10
Introducción
Este manual de seguridad está destinado a señalar
algunas de las situaciones de seguridad básicas que
pueden surgir durante la operación y el mantenimiento
normales de la máquina y a instruirlo en prácticas de
seguridad para manejar estas condiciones. Este manual
NO sustituye los manuales del operador del fabricante de
la cortadora de césped.
Puede ser necesario tomar precauciones adicionales o
algunas de las instrucciones pueden no ser pertinentes,
dependiendo del equipo, los accesorios y las condiciones
del sitio de trabajo o del área de servicio. El fabricante no
tiene control directo sobre la aplicación, la operación, la
inspección o el mantenimiento del equipo. Por lo tanto,
es SU responsabilidad utilizar prácticas de seguridad
correctas en estas áreas.
La información que se proporciona en este manual
complementa la información específica sobre la máquina que
contienen los manuales del operador del fabricante. Puede
haber otra información que afecte la operación segura de
la máquina en los letreros de seguridad o en los requisitos
del seguro, programas de seguridad y capacitación del
empleador, códigos de seguridad, leyes federales, locales,
estatales o provinciales, reglas y ordenanzas.
2
Lea y asegúrese
de comprender los
manuales antes
de comenzar la
operación
¡IMPORTANTE! Antes de hacer funcionar la
cortadora de césped, asegúrese de contar con
los manuales del operador del fabricante para
esta máquina y todos los accesorios. Si faltan
los manuales del fabricante, solicite manuales
de repuesto a su empleador, al concesionario de
los equipos o directamente al fabricante. Guarde
este manual de seguridad y los manuales del
fabricante con la máquina en todo momento. Lea
y asegúrese de comprender todos los manuales.
Se encuentra disponible el video AEM Mower
Safety Practices (Prácticas de seguridad para
la cortadora de césped de AEM) para capacitar
y reforzar prácticas de seguridad correctas. Se
alienta a los operadores a ver periódicamente el
video de seguridad.
Alertas de seguridad
Símbolo
Palabras indicativas
Este símbolo de alerta de seguridad significa:
“¡ATENCIÓN! ¡MANTÉNGASE ALERTA! ¡SU
SEGURIDAD ESTÁ EN RIESGO!”
Las palabras indicativas son palabras distintivas que
típicamente se encontrarán en letreros de seguridad
de la cortadora de césped y otros equipos del sitio de
trabajo. Estas palabras también se pueden encontrar
en este manual y en los manuales del fabricante. Están
destinadas a alertar al operador sobre un riesgo y el grado
de gravedad del riesgo.
El símbolo de alerta de seguridad identifica mensajes de
seguridad importantes sobre el equipo, sobre letreros de
seguridad, en manuales u otros lugares. Cuando vea este
símbolo, manténgase alerta ante la posibilidad de muerte
o lesiones personales. Siga las instrucciones del mensaje
de seguridad.
DANGER
PELIGRO
WARNING
ADVERTENCIA
CAUTION
Motivos por los cuales la seguridad es importante:
— Los accidentes provocan discapacidad y muerte.
— Los accidentes cuestan.
— Los accidentes pueden evitarse.
PRECAUCIÓN
NOTICE
AVISO
DANGER (PELIGRO) indica una
situación riesgosa que, si no se evita,
resultará en una lesión grave o la
muerte.
WARNING (ADVERTENCIA) indica
una situación riesgosa que, si no se
evita, podría resultar en una lesión
grave o la muerte.
CAUTION (PRECAUCIÓN) indica
una situación que, si no se evita,
podría resultar en lesiones leves o
moderadas.
NOTICE (AVISO) indica un mensaje
de daños a la propiedad.
Palabras para el usuario/operador
Es SU responsabilidad leer y asegurarse de comprender el
manual de seguridad y los manuales del fabricante antes de
hacer funcionar esta máquina. Este manual de seguridad lo
lleva paso a paso a través de su día de trabajo.
El reconocimiento de los riesgos y la prevención de
accidentes dependen de que usted esté alerta, sea
cuidadoso y se capacite correctamente para la operación,
el transporte, el mantenimiento y el almacenamiento de
este equipo.
Se han suministrado gráficos útiles para comprender el texto.
Recuerde que USTED es la clave de la seguridad. Las
prácticas de seguridad correctas lo protegen no sólo
a usted sino también a las personas que lo rodean.
Estudie este manual y los manuales del fabricante para
su máquina en particular. Transfórmelos en una parte
activa de su programa de seguridad. Tenga presente que
este manual de seguridad está escrito para cortadoras de
césped industriales/para agricultura.
Contáctese con el fabricante del equipo si le queda
alguna pregunta sobre la operación segura después de
estudiar los manuales del operador del fabricante y este
manual de seguridad.
Tome todas las demás precauciones habituales y
acostumbradas para un trabajo seguro y, sobre todo:
RECUERDE:
¡LA SEGURIDAD DEPENDE DE USTED!
Lea y asegúrese
de comprender
todos los letreros
de seguridad
¡PUEDE EVITAR LESIONES GRAVES O MUERTE
CAUSADAS POR PRÁCTICAS LABORALES
NO SEGURAS!
3
Cortadora de césped industrial/para agricultura
Tipos de cortadora de césped industrial/para
agricultura
Las cortadoras de césped se usan para recortar pasturas,
desmenuzar residuos de cultivos, cortar arbustos, realizar
desbroce pesado, cortar la hierba en vías de agua,
derechos de paso, costados de caminos o autopistas.
Además, estas cortadoras se usan para cortar la hierba
y otras plantas en zonas públicas como parques y
cementerios.
Triturador
Aguilón
Giratorio
Barra en forma de hoz
Giratorio con lateral
plegable
Cortadora de césped industrial/para agricultura
Tipos de cortadora de césped de disco para
agricultura
Las cortadoras de césped de disco están diseñadas y
equipadas para cortar cultivos de heno a mayor velocidad
de desplazamiento.
Cortadora de césped
de disco
Las cortadoras/acondicionadoras de disco cortan y
acondicionan los cultivos.
Cortadora/
acondicionadora de
disco
Las formadoras de hileras autopropulsadas cortan el heno
y lo acondicionan en hileras.
4
Formadora de hileras
autopropulsada
Cumplimiento del programa de seguridad
Protéjase a sí mismo
Use la ropa de protección personal y los equipos de
protección personal (PPE) que se le proporcionen o que
requieran las condiciones del trabajo. SIEMPRE debe
usar gafas de seguridad con escudos laterales.
Puede necesitar también:
— Casco
— Calzado de seguridad
— Antiparras de seguridad o protección facial
— Guantes gruesos
— Protección para oídos
— Indumentaria reflectiva
— Indumentaria impermeable
— Respirador o máscara con filtro
Use la ropa necesaria; no corra ningún riesgo.
¡ADVERTENCIA! Evite lesiones graves o muerte por
enredos. No use ropa floja ni accesorios. Ate el cabello
largo. Manténgase alejado de todos los componentes
giratorios cuando el motor está en funcionamiento. El
contacto, el enrollado o el enredo con piezas giratorias o
móviles podrían resultar en lesiones graves o la muerte.
Evite quedar
enredado
Cumplimiento del programa de seguridad
— Lea, asegúrese de comprender y siga las instrucciones
escritas del fabricante que se encuentran en el manual
del operador y en los letreros de seguridad sobre la
cortadora y el tractor.
— Obtenga capacitación para la operación de la
cortadora y el tractor.
— Aproveche los programas de capacitación que se
ofrecen en su zona.
— Solicítele al distribuidor de equipos o al supervisor que
le explique cualquier información que no comprenda.
— Explique las instrucciones escritas de los manuales del
operador y los letreros de seguridad a los usuarios u
operadores que no puedan leerlas.
— Inspeccione la cortadora y el tractor diariamente antes
de hacerlos funcionar. Asegúrese de que todas las
guardas se encuentren en su lugar y de que el equipo
funcione correctamente.
— Nunca fume mientras lo está manejando. Nunca
llene el depósito de combustible con el motor en
funcionamiento o cerca de una llama abierta.
— Asegúrese de tener visibilidad adecuada e iluminación
suficiente.
— Sepa cuáles son los puntos donde puede quedar
atrapado y las partes giratorias. Su conocimiento
puede evitar accidentes.
— Nunca intente hacer funcionar los controles, excepto
desde el asiento del operador. Las funciones
controladas de manera incorrecta pueden producir
el movimiento imprevisto de la máquina y resultar en
lesiones graves o muerte.
— Apague la cortadora y el tractor antes de descender.
(Consulte la página 18, Prácticas correctas de
apagado de los equipos.)
Lea, asegúrese de
comprender y siga
las indicaciones de
los manuales y los
letreros de seguridad
Evite las partes
giratorias
Sepa cuáles son
y evite los puntos
donde pueda quedar
atrapado
5
Cumplimiento del programa de seguridad
Evite las lesiones provocadas por equipos elevados
Evite posibles lesiones de aplastamiento por caídas de la
cortadora u otros equipos elevados.
Evite ser aplastado –
Bloquee o apoye
con seguridad la
cortadora
Antes de trabajar cerca o debajo de partes levadas de la
cortadora o de los equipos:
— Apoye o bloquee con seguridad las partes elevadas de
la cortadora o los equipos de acuerdo con el manual
del operador.
— Apoye, bloquee o trabe con seguridad los laterales con
dispositivos de bloqueo aprobados o descienda las
partes de la cortadora o de los equipos hasta el suelo.
— Use trabas de transporte cuando transporte la
cortadora por la vía pública.
Evite lesiones producidas por líquidos a alta presión
Evite las lesiones por inyección de fluidos debidas a fugas
de líquidos a alta presión.
Si un fluido se inyecta en la piel, debe ser extraído
dentro de pocas horas por personal médico
familiarizado con este tipo de lesión.
Las fugas de fluido bajo presión pueden no ser visibles.
Al verificar en busca de fugas o cuando trabaja cerca de
sistemas presurizados:
— Lea las prácticas de seguridad recomendadas en los
manuales del operador del fabricante.
— Use una protección facial o antiparras de seguridad
para proteger los ojos.
— Use un cartón o una madera para buscar fugas; NO
use las manos.
— Alivie la presión del sistema antes de desconectar líneas.
— Busque y repare las líneas, los tubos y las mangueras
dañados o con fugas.
— Busque y apriete las conexiones flojas.
— Purgue el aire del sistema antes de hacerlo funcionar.
El fluido a alta
presión puede
inyectarse en el
cuerpo
Cumplimiento del programa de seguridad
Evite lesiones por incendios y explosiones
Aplique el freno de estacionamiento, apague el motor de
la cortadora y del tractor y retire la llave mientras llena
el depósito de combustible. Tenga precaución adicional
cuando carga combustible en un motor caliente. Nunca
fume mientras carga combustible. Evite las chispas
conectando a tierra la boquilla de combustible contra el
cuello de llenado del depósito.
Los vapores de un depósito de combustible vacío son
explosivos. Nunca suelde o realice cortes en líneas,
depósitos o contenedores de combustible.
Retire toda la basura o los residuos de corte de la
máquina todos los días o según sea necesario. Mantenga
los residuos alejados del motor, el escape, los embragues
y otras fuentes de calor. Use supresores de chispas,
según corresponda, en el sistema de escape del motor.
Asegúrese de que no haya trapos con aceite u otro
material inflamable almacenado en la máquina.
operador del fabricante correspondientes a la cortadora
de césped. No use éter/fluido para arranque en frío si el
motor está equipado con bujías de precalentamiento u
otro dispositivo de precalentamiento.
Siempre use solvente no inflamable para limpiar las
partes. No use gasolina, combustible diesel u otros fluidos
inflamables. Almacene todos los fluidos y materiales
inflamables lejos de la máquina y de la zona de trabajo.
Sepa dónde se guardan los extintores de incendios, cómo
funcionan y para qué tipo de incendio están destinados.
Verifique la disponibilidad de los extintores de incendios de
acuerdo con las instrucciones del fabricante. Asegúrese de
que cada tractor esté equipado con un extintor de incendios.
No fumar;
evitar las llamas
abiertas
Revise en busca de fugas de combustible, aceite o fluido
hidráulico. Repare las fugas y limpie la máquina antes de
hacerla funcionar.
El éter/fluido para arranque en frío es inflamable. No fume
cuando usa éter/fluido para arranque en frío. Siempre
siga las instrucciones del recipiente y de los manuales del
6
Retire los
residuos a diario
o según sea
necesario
Cumplimiento del programa de seguridad
¡Manténgase alerta!
Para una operación segura
Sepa dónde obtener asistencia. Sepa cómo usar un
equipo de primeros auxilios y un extintor de incendios/
sistema de supresión de fuego.
Usted debe ser un operador cualificado y autorizado
para operar la máquina correctamente. Debe comprender
claramente las instrucciones por escrito que proporciona
el fabricante, recibir capacitación (que incluya la
operación real de la cortadora de césped) y conocer
las reglas y ordenanzas de seguridad correspondientes
al sitio de trabajo. Una buena práctica de seguridad
consiste en señalar y explicar los letreros y las prácticas
de seguridad y asegurarse de que otras personas
comprendan la importancia de seguir estas instrucciones.
¡Manténgase informado!
Aproveche los programas de capacitación que se ofrecen.
¡Tenga cuidado!
El error humano es causado por muchos factores: descuido,
fatiga, sobrecarga, preocupación, desconocimiento de
la máquina por parte del operador, fármacos y alcohol,
entre muchos otros. Los daños al tractor o la cortadora de
césped se pueden arreglar en un tiempo breve, pero las
lesiones o la muerte tienen un efecto perdurable.
Por su seguridad y la de los demás, aliente a sus
compañeros de trabajo a actuar con seguridad.
Nunca use
fármacos o alcohol
mientras está
operando la máquina
¡ADVERTENCIA! Los fármacos y el alcohol afectan la
capacidad de alerta y de coordinación del operador,
así como su capacidad para operar los equipos con
seguridad. Nunca use fármacos o alcohol mientras
opera el equipo de la cortadora. Nunca permita a
sabiendas que otra persona opere esta máquina con
la capacidad de alerta o coordinación deteriorada.
Un operador que toma un medicamento recetado o de
venta libre debe consultar a un profesional médico con
respecto a los efectos colaterales del medicamento que
podrían reducir su capacidad de operar este equipo con
seguridad.
Cumplimiento del programa de seguridad
Conozca las reglas
La mayoría de los empleadores tienen reglas que rigen la
operación y el mantenimiento de los equipos. Antes de
comenzar a trabajar en una ubicación nueva, verifique con
el supervisor o con el coordinador de seguridad. Averigüe
sobre las reglas que tendrá que obedecer.
La Administración de Seguridad y Salud Ocupacional
(Occupational Safety and Health Administration,
OSHA) hace cumplir leyes federales dentro de los
EE.UU. que se aplican a la operación, la aplicación y el
mantenimiento seguros de equipos en un sitio de trabajo.
Es responsabilidad del empleador cumplir estas leyes. Un
representante de OSHA puede visitar periódicamente un
sitio de trabajo para ver si estas leyes se cumplen.
También puede haber leyes estatales/provinciales o locales
u ordenanzas internacionales que se apliquen a este
equipo y a su uso, junto con reglas específicas del sitio
de trabajo o del empleador. Es importante que conozca y
cumpla todas las leyes y reglas aplicables, incluso las que
requieren capacitación y certificación del operador.
Las siguientes son algunas de las reglas que debe
cumplir al trabajar:
— Un ROPS (sistema de protección antivuelco) y un tractor
equipado con cinturón de seguridad es exigencia del
gobierno federal (OSHA) par ala protección de los
operadores durante el funcionamiento de la cortadora.
Una cabina cerrada proporciona protección adicional para
el operador con respecto a objetos arrojados. Verifique el
manual del operador de la cortadora de césped para ver
si también se requiere una cabina de tractor.
— Use y verifique que otras personas usen la indumentaria
y los equipos de protección personal correctos.
— Inspeccione la máquina y los accesorios antes de cada
uso según lo especificado por el fabricante y por su
empleador.
— Conozca las limitaciones y las características operativas
del equipo de corte de césped. No haga un uso indebido.
— Verifique que todos los escudos y las guardas estén
correctamente instalados antes de hacer funcionar la
máquina.
— Nunca modifique o retire partes de la máquina (excepto
para realizar servicios; después, asegúrese de que se
vuelvan a colocar en su lugar).
Reglas
de seguridad
•
•
•
•
•
•
•
•
•
•
Sepa cuáles son
y asegúrese de
comprender las reglas
de funcionamiento
7
Cumplimiento del programa de seguridad
Algunas reglas que debe cumplir al trabajar
(continuación)
— Únicamente personas cualificadas y autorizadas
pueden manejar estos equipos.
— Nunca permita que los niños jueguen en los equipos,
viajen en ellos o los hagan funcionar. Los niños no
están cualificados para manejar estos equipos.
— No transporte pasajeros.
— Use contacto en tres puntos (asideros y peldaños) y
enfrente el equipo al ascender o descender de él.
— Mantenga a las personas ajenas a 300 pies (92 m) de la
operación de corte.
— Familiarícese con el sitio de trabajo antes de usar la
cortadora de césped. Tenga en cuenta posibles riesgos
que puede encontrar en el terreno. Retire o marque los
obstáculos y residuos que podrían dañar la cortadora o
ser arrojados por ella.
— Utilice sólo accesorios y partes aprobados por el
fabricante de la cortadora de césped.
— Asegúrese de que todos accesorios estén descendidos,
aplique el freno de estacionamiento, apague el motor y
haga funcionar todas las palancas de control. Retire la
llave antes de salir del tractor. (Consulte la página 18,
Prácticas correctas de apagado de los equipos.)
— Cuando transporte la cortadora de césped en un
remolque, siga las instrucciones detalladas del fabricante
para la carga, el amarre y la descarga de la cortadora.
Mantenga
a los niños alejados
de los equipos
Mantenga a las
personas ajenas
alejadas
No lleve
pasajeros
Apague los equipos
cuando están sin
vigilancia
Cumplimiento del programa de seguridad
Conozca los equipos
Lea y asegúrese de comprender los letreros de seguridad
que indican PELIGRO, ADVERTENCIA, PRECAUCIÓN
y AVISO y otros letreros informativos que hay sobre
el tractor y la cortadora de césped y en el manual del
operador del fabricante. Solicítele al supervisor o al
distribuidor de la cortadora que le explique cualquier
información que no comprenda. El incumplimiento de las
instrucciones de seguridad podría resultar en lesiones
graves o muerte.
Lea y asegúrese
de comprender
todos los letreros
de seguridad
8
Asegúrese de que todas las estructuras de protección,
guardas, escudos, pantallas y paneles del fabricante
están bien reparados, en su lugar y bien ajustados.
Los componentes de seguridad dañados, faltantes o
debilitados pueden crear una situación de riesgo para
usted como operador. Nunca retire o modifique ningún
componente de seguridad (incluso escudos para objetos
arrojados) que haya en la cortadora.
Conozca lo siguiente sobre el tractor y la cortadora de
césped:
— Funcionamiento, propósito y uso de todos los controles.
— Velocidades de funcionamiento correctas.
— Capacidades y funcionamiento correcto en pendientes
y terrenos desparejos.
— Características del frenado y la dirección.
— Radio de giro y separaciones.
— Cómo detener los equipos rápidamente en una
emergencia.
Lea y asegúrese
de comprender los
manuales antes
de comenzar la
operación
Preparación para una operación segura
Revise los equipos de la cortadora de césped y el
tractor
Antes de comenzar la jornada de trabajo, inspeccione la
máquina y asegúrese de que todos los sistemas estén en
buenas condiciones operacionales.
¡ADVERTENCIA! Evite posibles lesiones por aplastamiento
producidas por equipos que caen. La falla del sistema
hidráulico o de una parte podría causar la caída de
equipos que no están apoyados. No permanezca debajo
de equipos elevados excepto que estén correctamente
apoyados de acuerdo con el manual del operador.
— Realice procedimientos de servicio diarios y periódicos
según lo indicado por el fabricante del equipo.
— Verifique para detectar piezas faltantes, dañadas,
rotas o flojas en el tractor y en la cortadora de césped.
Repare o sustituya esas piezas.
— Verifique que los accesorios del tractor y la cortadora
sean los correctos.
— Verifique que la clasificación nominal de velocidad de
TDF del tractor y la cortadora sea la correcta.
— Verifique el estado de las hojas de la cortadora
de césped. Sustituya las hojas que se encuentren
gravemente gastadas, dobladas, agujereadas o
marcadas; incluya los pernos y sujetadores de las
hojas. Nunca enderece o suelde en las hojas.
— Asegúrese de que el escudo para objetos que son
arrojados se encuentre correctamente instalado y en buen
estado. Repárelo o sustitúyalo si está dañado o falta.
Recorrida de
inspección
Realice el
mantenimiento de
la máquina
Lea el manual –
Bloquee o apoye
con seguridad la
cortadora
Preparación para una operación segura
— Verifique que todos los escudos y guardas estén en su
lugar y que todos los equipos se encuentren en buenas
condiciones de funcionamiento. Esto incluye la línea
motriz de la TDF, la caja de engranajes y las guardas y
escudos de los implementos que se usan para proteger
al operador.
— Verifique que los dispositivos de bloqueo del extremo
en horquilla de la línea motriz estén correctamente
enclavados.
— Verifique en busca de sistemas hidráulicos dañados o
con fugas en el tractor o la cortadora. Repare o ajuste
según sea necesario.
¡ADVERTENCIA! El fluido hidráulico bajo presión puede
penetrar la piel o los ojos y causar lesiones graves,
ceguera o la muerte. Las fugas de fluido bajo presión
pueden no ser visibles. Utilice un cartón o una madera
para buscar fugas, no la mano. Use protección ocular.
Si el fluido se inyecta en la piel, debe ser extraído dentro
de las próximas pocas horas por personal médico
familiarizado con este tipo de lesión.
— Mantenga la superficie de la plataforma del operador
limpia y libre de grasa, aceite, suciedad, nieve o
hielo. Los peldaños y asideros deben estar limpios y
funcionar correctamente.
— Asegúrese de que las luces de trabajo se mantengan
limpias (si están instaladas). Verifique que todas las
luces funcionen correctamente.
— Asegúrese de que el letrero de vehículo de movimiento
lento, los y las luces de advertencia estén en buenas
condiciones y puedan verse claramente.
— Asegúrese de que todas las herramientas y objetos
sueltos se retiren o se sujeten con seguridad mientras
se opera la máquina.
— Verifique que todos los letreros de seguridad se vean
con claridad. Sustituya los letreros dañados.
Revise para
detectar/guardas y
escudos dañados
Verifique en
busca de fugas e
inspeccione las
mangueras
Aparte las
reflectores
herramientas
9
Preparación para una operación segura
Familiarícese con la zona de trabajo
Antes de hacer funcionar la cortadora de césped,
inspeccione cuidadosamente la zona de trabajo. Recorra
a pie alrededor de la zona e inspeccione las superficies
sobre las cuales se desplazará cuando utilice la cortadora.
Recorra a pie
alrededor del lugar
de trabajo
Localice y evite:
— Agujeros
— Desmoronamientos
— Obstáculos (tocones)
— Excavaciones
— Agua estancada
— Lodo profundo
— Puntos mojados
— Suelo blando
— Puntos irregulares
— Líneas y aparatos
eléctricos
— Otros servicios públicos
— Cualquier condición que
podría causar una colisión,
pérdida de control o vuelco
— Pendientes empinadas
Busque residuos y obstáculos recorriendo a pie la zona
antes de cortar. Los objetos como alambre, cable, rocas,
neumáticos y metales que podrían dañar o ser arrojados
por la cortadora de césped deben retirarse o marcarse
claramente y evitarse.
Corrija las condiciones no seguras. No opere en áreas
con problemas donde no se puedan retirar o marcar los
residuos y los obstáculos.
Analice la zona de corte para determinar:
— El procedimiento de corte más eficiente.
— La altura del material que debe cortarse.
— Las condiciones operativas del terreno.
— Cómo usar mejor el patrón de corte en sentido de
avance.
— Las posibilidades de que personas ajenas o que pasan
circunstancialmente queden expuestas a objetos que
se arrojan.
Retire o marque
los residuos y
obstáculos
Tenga cuidado con otras personas
Antes de poner en marcha los equipos:
— Recorra a pie alrededor de los equipos.
— Verifique en busca de personas debajo o cerca de los
equipos.
— Retire a todas las personas de esas zonas.
— Haga sonar una advertencia.
Preparación para una operación segura
Ascienda y descienda del tractor correctamente
Siempre use contacto de tres puntos al ascender o
descender del tractor o de la cortadora de césped.
Enfrente la máquina al ingresar o salir de ella. Un contacto
de tres puntos significa que tres de los cuatro miembros
(brazos y piernas) están en contacto con la máquina en
todo momento durante el ascenso y descenso.
Antes de ascender:
— Límpiese el calzado y las manos. Limpie la nieve, el
hielo, el lodo o el aceite de los peldaños y asideros.
Durante el ascenso y el descenso:
— Use los asideros y los estribos.
— Nunca se aferre al volante o a los controles como
asideros.
— Nunca ascienda o descienda de un tractor en
movimiento.
— Nunca ascienda o descienda transportando
herramientas u objetos que impidan el contacto de tres
puntos. Deje en el piso las piezas o las herramientas.
Manteniendo el contacto correcto, suba y, después,
recoja el objeto.
10
Utilice contacto
de tres puntos
Limpie las
superficies
resbaladizas
Preparación para una operación segura
Prueba de seguridad de los controles del tractor
y de la cortadora de césped
Arranque el tractor siguiendo los procedimientos
específicos del manual del operador del fabricante. Estos
procedimientos normalmente incluyen:
— Colóquese y ajústese el cinturón de seguridad en el
tractor equipado con ROPS.
— Verifique que el freno de estacionamiento esté aplicado.
— Verifique que la TDF esté desenganchada.
— Verifique que todos los controles estén en la posición
de estacionamiento.
— Advierta a otras personas en la zona antes de arrancar
el tractor.
— Arranque el tractor siguiendo los procedimientos de
arranque que recomienda el fabricante del tractor.
¡ADVERTENCIA! Evite lesiones graves o muertes
producidas por el movimiento inesperado de la máquina.
Arranque el motor únicamente desde el puesto del
operador. Nunca intente arrancar el motor haciendo
un corto entre los bornes del arranque o tomando la
llave desde el suelo o desde afuera de la cabina.
Después del arranque:
— Verifique que todos los instrumentos, indicadores y
luces indicadoras funcionen normalmente.
— Verifique que todos los controles, la dirección y los
frenos del tractor funcionen correctamente.
Use el ROPS
y el cinturón de
seguridad
Arranque
únicamente desde
el asiento del
operador
Revise los
instrumentos y
controles
— Eleve y descienda la cortadora de césped en busca
de problemas en el descenso total o el enganche de la
línea motriz.
— Verifique los equipos en busca de vibraciones
excesivas y ruidos anormales.
Preparación para una operación segura
— Use las prácticas correctas de apagado de los equipos
antes de inspeccionar equipos. Espere hasta que todo
movimiento de los equipos se haya detenido antes de
descender del tractor o la cortadora de césped.
— No haga funcionar la cortadora si el tractor y la cortadora
de césped no funcionan correctamente. Coloque una
etiqueta que indique “No poner en funcionamiento” en la
máquina, retire la llave y no haga funcionar la cortadora
hasta que el problema se haya corregido.
Sistema de toma de fuerza (TDF)
No descienda hasta
que el movimiento de
los equipos se haya
detenido
Use una etiqueta
que indique
“No poner en
funcionamiento”
Asegúrese de hacer funcionar el tractor a la velocidad de
TDF indicada para la cortadora.
Al hacer funcionar tractores con sistemas de TDF
impulsados por transmisión, una cortadora giratoria tiene
un significativo efecto de rueda volante. La cortadora
puede seguir propulsando un tractor con un sistema de
TDF impulsado por transmisión.
El tractor debe estar equipado y funcionar como sigue:
— Instale una línea motriz equipada con un embrague de
sobrecarga.
— Prevea suficiente espacio y tiempo para maniobrar
anticipando los giros, las paradas y las reducciones de
velocidad.
Use la velocidad
de la TDF
11
Preparación para una operación segura
Enganche de la cortadora de césped al tractor
Lea y asegúrese
de comprender los
manuales antes
de comenzar la
operación
Cortadoras montadas en enganche de tres puntos:
— Consulte los manuales de los fabricantes de la
cortadora y del tractor.
— Coloque la palanca selectora de elevación de potencia
hidráulica del tractor en la posición descendida para
evitar movimientos imprevistos.
— Explique los procedimientos de enganche a los
operadores que no puedan leerlos.
— Pueden requerirse pesos en el extremo delantero para
mantener el control de la dirección y la estabilidad del
extremo delantero. Consulte los manuales del operador
de los fabricantes.
— Al hacer retroceder el tractor hasta la cortadora de
césped, NUNCA permita que haya personas entre
tractor y la cortadora.
— Instale la cortadora en los eslabones de tres puntos del
tractor y asegúrela en su lugar con pasadores.
— Instale con seguridad la línea motriz a la TDF del
tractor. Descienda el escudo principal hasta su lugar
si es móvil. Empuje y tire de la línea motriz para
asegurarse de que esté trabada en el vástago de
la TDF.
Mantenga una
distribución
correcta del peso
No permita que
haya nadie entre el
tractor y la cortadora
de césped
Evite quedar
enredado, use
guardas y
escudos
Preparación para una operación segura
Cortadoras montadas en enganche tipo de tiro:
— Consulte los manuales de los fabricantes de la
cortadora y del tractor.
— Retire el acople rápido del enganche de tres puntos si
está instalado.
— Instálelo únicamente al enganche de la barra de tiro.
— Ajuste la longitud de la barra de tiro del tractor para el
funcionamiento de la TDF a 540 ó 1000 rpm.
— Al hacer retroceder el tractor hasta la cortadora de
césped, NUNCA permita que haya personas entre
tractor y la cortadora.
— Instale correctamente la cadena de remolque de
seguridad de la cortadora en el tractor.
— Instale con seguridad la línea motriz a la TDF del
tractor. Empuje y tire de la línea motriz para asegurarse
de que esté trabada en la TDF. Descienda el escudo
principal a su lugar.
— Conecte las mangueras hidráulicas de la cortadora de
césped en el tractor.
— Asegúrese de que los laterales o las plataformas
elevadas de la cortadora estén sostenidas por los
cilindros antes de retirar las trabas de transporte.
Nunca haga fuerza para soltar las trabas de transporte
o de los laterales. Los laterales o la plataforma podrían
caerse y aplastarlo.
12
TDF
540 RPM
540ARPO
PTO
1-3/8"
ESTRÍA66SPLINE
A 1 3/8"
14
PULG.
14IN
Ajuste de la
barra de tiro del
tractor
TDF
A 1000
1000
RPORPM
PTO
ESTRÍA21
21SPLINE
A 1 3/8"
1-3/8"
16
16IN
PULG.
TDF
A 1000
1
1000
RPORPM
PTO
ESTRÍA
20 ASPLINE
1 ¾"
1-3/4" 20
20
20IN
PULG.
Confirme que los
laterales estén
apoyados antes de
soltar las trabas
Evite quedar
enredado, use
guardas y
escudos
Arranque con seguridad
Cómo realizar un arranque correcto
Corte la hierba únicamente con luz diurna o en
condiciones de buena luz artificial.
Evite lesiones graves o muerte producidas por objetos
arrojados por la cortadora o por el contacto con las hojas:
— Mantenga los escudos de las cadenas, los escudos
deflectores flexibles o sólidos y las rampas de
descarga en su lugar y en buen estado de reparación.
— Mantenga a las personas ajenas a 300 pies (92 m) de la
operación de corte.
— Nunca dirija la descarga de la cortadora hacia una
persona.
— Mantenga las manos, los pies y otras partes del
cuerpo alejadas de las piezas giratorias, las hojas y las
aberturas de descarga.
— No haga funcionar la cortadora de césped en la
posición de transporte.
No se acerque a una cortadora hasta que todo
movimiento se haya detenido.
Enganche de la transmisión de RDF de la cortadora de
césped:
— Eleve la cortadora hasta la altura de corte máxima.
— Enganche la TDF a baja velocidad del motor.
— Aumente la velocidad del motor hasta llegar a la
velocidad nominal de la TDF.
— Descienda la cortadora hasta la altura de corte deseada.
— Detenga y apague de inmediato si la cortadora golpea
contra una obstrucción.
— Inspeccione y repare cualquier daño de la cortadora
antes de reanudar el corte.
— No haga funcionar una cortadora que vibra en exceso o
produce ruidos anormales.
Hojas giratorias –
Manténgase
No ponga en
funcionamiento una
cortadora de césped
dañada
Objetos arrojados por la cortadora de césped
Dependiendo del propósito previsto, las cortadoras
están diseñadas para cortar hierba, maleza, broza y
cultivos. Las hojas de la cortadora están diseñadas y
probadas para uso intensivo. Las hojas de la cortadora,
sin embargo, no están diseñadas para entrar en contacto
con objetos sólidos como rocas, cemento o metales. Un
impacto de este tipo puede arrojar objetos rotos hasta
300 pies (92 m) de distancia. Nunca debe haber personas
ajenas a menos de 300 pies (92 m) de una cortadora
giratoria en funcionamiento o a menos de 100 pies (30 m)
de una cortadora de disco correctamente equipada.
Operación con seguridad
Los escudos de la cortadora están diseñados para reducir
el riesgo de objetos arrojados y se deben mantener
correctamente y en su lugar durante las operaciones de
corte.
Siga todas
las reglas de
seguridad
El riesgo de lesiones graves o muerte puede reducirse
significativamente si se siguen estas reglas. Si no se
siguen todas estas reglas de seguridad, la operación
de corte debe detenerse en caso de que alguna
persona ingrese dentro del límite de seguridad
correspondiente a cada tipo de cortadora.
Realice el corte de la zona a una altura intermedia.
Inspeccione la zona atentamente y retire o marque
cualquier residuo u obstáculo restante. Corte nuevamente
a la altura final deseada.
Primero — Inspeccione la zona antes de cortar y retire las
piedras, ramas, alambres, cables, metales, vidrios y otros
objetos sólidos antes de hacer funcionar la máquina. Los
objetos que no puedan retirarse deben marcarse con
claridad y ser evitados con cuidado por el operador.
Segundo — Los escudos para objetos arrojados por la
cortadora deben usarse cuando se opera cerca de caminos,
parques, zonas pobladas u otras zonas donde objetos
arrojados podrían lesionar a personas ajenas o dañar la
propiedad. Siga el manual del operador del fabricante.
En áreas sin cultivos con hierba y maleza de altura
suficiente como para ocultar objetos que podrían ser
golpeados por las hojas, inspeccione la zona y retire o
marque los residuos u obstáculos grandes.
Tercero — Cruce en sentido diagonal cuando realiza
el corte a través de zanjas, depresiones marcadas y
hundimientos. Eleve la cortadora para evitar que las hojas
de la cortadora golpeen el suelo.
13
Operación con seguridad
Objetos arrojados por la cortadora de césped
(continuación)
Apague la TDF, espere que las hojas dejen de girar, eleve
la cortadora y, después, retroceda.
Cortadoras de disco — Cuando se usa una cortadora
de disco, es importante conocer la zona donde se va a
cortar. Si el operador ha realizado cortes en el terreno
antes y está familiarizado con todos los obstáculos
que puede haber, es suficiente observar delante de la
trayectoria de la cortadora para detectar cualquier objeto
adicional que pueda haber ingresado en el terreno. Esté
preparado para detenerse o evitar objetos que podrían
ser peligrosos si son arrojados por la cortadora. Si piensa
cortar en un terreno que no conoce bien y se encuentra
junto a un camino transitado o puede haber personas
a menos de 100 pies (30 m) de la cortadora de césped,
debe inspeccionar y limpiar o marcar el terreno.
Corte desplazándose en sentido de avance.
Cómo cortar en retroceso
No corte mientras se desplaza en retroceso. Es más
probable que se arrojen objetos y que éstos puedan llegar
más lejos.
No corte
en retroceso
Use la velocidad
de desplazamiento
correcta
Velocidad de desplazamiento durante el corte
La velocidad de desplazamiento correcta depende de las
condiciones del terreno y del tipo de hierba, la densidad y
la altura que debe cortarse:
— El rango normal de velocidad de desplazamiento es de
2 a 5 mph (3.2 a 8 km/h).
— Use una velocidad de desplazamiento menor para
cortar hierbas altas y densas.
— Use una velocidad de desplazamiento mayor para
cortar hierba delgada a altura media y con condiciones
de terreno sin dificultades.
— Use una velocidad de desplazamiento menor par acortar
en terreno irregular, con pendientes o no muy conocido.
Las cortadoras de disco están diseñadas para usar
velocidades de desplazamiento mayores cuando funcionan
en terrenos despejados de residuos y peligros superficiales.
Operación con seguridad
Corte de hierba extremadamente alta
Puede ser necesario cortar dos veces la hierba
extremadamente alta que no sea cultivo. (Consulte la página
13, Objetos arrojados por la cortadora de césped.)
Detenga
la hoja antes de
desatascar
Primera pasada de corte:
— Apague la cortadora y el tractor usando la práctica
correcta de apagado de equipos antes de descender del
tractor. (Consulte la página 18, Prácticas correctas de
apagado de los equipos.)
— Inspeccione la zona y retire o marque cualquier residuo u
obstáculo.
— Corte la hierba a mayor altura (10 a 15 pulg. [25 a 38 cm])
para evitar los objetos ocultos.
Proporcione el
espacio libre
adecuado para la
oscilación de la
cortadora de césped
Segunda pasada de corte:
— Apague la cortadora y el tractor usando la práctica
correcta de apagado de equipos antes de descender
del tractor.
— Inspeccione la zona y retire o marque cualquier residuo
u obstáculo.
— Corte la hierba a la altura deseada y, de ser posible, a
90 grados con respecto a la primera pasada de corte.
14
Preste atención a los espacios libres de los
equipos
Las cortadoras con enganche de tres puntos y montaje
lateral tienen un arco de giro mayor que las tipo de tiro.
Deje el espacio libre suficiente para la oscilación de la
cortadora cuando gira.
No permita que haya personas ajenas cerca del tractor
y la cortadora de césped cuando mueve o transporta el
tractor y la cortadora.
Operación con seguridad
Prácticas de seguridad para la cortadora de
césped de montaje inferior
Cuando se traslada con una cortadora de césped de
montaje inferior:
— Mantenga la rampa de descarga extraíble en su lugar y
por encima de la abertura de descarga.
— Nunca se pare sobre la carcasa de una cortadora
de césped cuando el motor del tractor está en
funcionamiento.
— Distribuya los recortes de hierba con la rampa de
descarga orientada hacia la zona donde se cortó.
— Antes de limpiar una cortadora o una rampa de
descarga atascada, apague la máquina usando la
práctica correcta para apagado del equipo. (Consulte
la página 18, Prácticas correctas de apagado de los
equipos.)
Nunca se pare
sobre la cortadora
de césped –
Manténgase alejado
Mantenga
la rampa en
su lugar
Detenga
la hoja antes de
desatascar
Operación con seguridad
Cortadora de césped con lateral o aguilón
Peligros y riesgos de obstrucciones elevadas
Verifique en busca de obstrucciones elevadas con las
cortadoras que tienen el lateral o el aguilón elevado, para
evitar lesiones graves o la muerte por contacto con:
— Líneas y aparatos eléctricos.
— Ramas bajas de los árboles.
— Otras obstrucciones elevadas.
— Mantenga las distancias especificadas con respecto a
los cables y los aparatos eléctricos. Nunca se acerque
a cables o aparatos eléctricos energizados con ninguna
parte de la máquina, salvo que se hayan tomado todas
las precauciones de seguridad locales, estatales/
provinciales y federales (OSHA) necesarias. Use
extrema precaución.
No se acerque a
líneas de electricidad
energizadas
Manténgase alejado
de los equipos
energizados
¡PELIGRO! Evite la electrocución o lesiones graves por
contacto o un espacio libre inadecuado con respecto
a líneas o aparatos eléctricos energizados. No permita
que la máquina o el accesorio se acerque o entre en
contacto con una línea de electricidad. No se acerque
ni toque una máquina que esté en contacto con una
línea de electricidad.
15
Operación con seguridad
Prácticas de seguridad para cortadoras de
césped con laterales y montaje lateral
300 ft
(92 m)
Las posiciones elevadas de los laterales reducen la
protección de los escudos y aumentan los riesgos de
objetos arrojados y contacto con las hojas.
Evite la posibilidad de lesiones graves o muerte por
objetos arrojados o contacto con las hojas causados
por la elevación y el descenso de los laterales durante
las operaciones de corte:
— No realice cortes con personas ajenas presentes a
menos de 300 pies (92 m) de la cortadora de césped.
— Asegúrese de que no haya personas cerca de la
cortadora mientras se elevan o descienden los
laterales.
— Apague la TDF y espere hasta que todos los elementos
giratorios se hayan detenido antes de elevar la
plataforma o la sección lateral de la cortadora.
— Únicamente eleve el lateral para quitar objetos de la
trayectoria de corte o para acompañar una pendiente
del terreno.
— Descienda hasta el suelo el lateral elevado una vez que
se eliminó el objeto o se superó la pendiente.
— Detenga el trabajo de corte si alguna persona se acerca
a menos de 300 pies (92 m) de la zona de corte.
Mantenga a las
personas ajenas
alejadas de la zona
de corte
Evite golpear
obstrucciones
Prácticas de seguridad para trabajos de corte en
orillas de zanjas
Use extremo cuidado al realizar cortes en orillas
de zanjas. Preste atención a escurrimientos, zonas
erosionadas y obstrucciones para el corte a lo largo de
las orillas de zanjas. Si se golpean obstrucciones con
cortadoras de montaje lateral o con aguilón, el extremo
delantero del tractor puede desviarse hacia la zanja.
Operación con seguridad
Los trabajos en orillas de zanjas con aguilón y lateral
elevado pueden reducir la eficacia de la protección del
operador de la cortadora que proporcionan los escudos
para objetos arrojados.
Utilice cabinas
cerradas con ROPS
o cerramientos de
protección
— Cuando realice estas operaciones, use cabinas cerradas
con ROPS, cerramientos protectores especiales y otros
escudos para el operador que ofrece el fabricante.
— Inspeccione la zona de corte y retire o marque todos
los objetos extraños y los residuos que deberá esquivar
la cortadora.
de que el ROPS está elevado y trabado en su lugar y
use siempre el cinturón de seguridad.
Prevenga los vuelcos del tractor y de la cortadora de césped
y mantenga controlada la estabilidad de los equipos:
— Repase los manuales del operador del tractor y de la
cortadora para ver las prácticas de seguridad para
operaciones en pendientes y terrenos desparejos.
Explique las prácticas a los operadores que no puedan
leerlas.
— Evite trabajar en pendientes extremadamente
empinadas.
Lea y asegúrese
de comprender los
manuales antes
de comenzar la
operación
Prácticas de seguridad para trabajos de corte en
terrenos desparejos
Las pendientes y los terrenos desparejos reducen la
estabilidad del tractor y de la cortadora.
Como en todas las condiciones de corte, use tractores
equipados con ROPS y cinturón de seguridad. Asegúrese
16
Use el ROPS
y el cinturón
de seguridad
Operación con seguridad
Prácticas de seguridad para trabajos de corte en
terrenos desparejos (continuación)
— Use extremo cuidado para mantener el control de los
equipos cuando trabaja en estas condiciones.
— Aumente la estabilidad del tractor agregando
pesos o lastre en las ruedas y aumentando al
máximo la separación entre las ruedas. Consulte las
recomendaciones en el manual del operador.
— Mantenga la velocidad de desplazamiento en el mínimo.
— Realice giros amplios y graduales.
— Evite los arranques, las paradas y los giros bruscos
cuando trabaje en subidas o bajadas de pendientes o
sobre ellas.
— No levante del suelo las cortadoras de montaje trasero
o de montaje lateral ni los laterales de la cortadora
durante estas operaciones.
— Manténganse alerta en busca de agujeros, baches,
pozos, tocones u otras obstrucciones que podrían
hacer volcar la máquina.
— Evite las condiciones de suelo resbaladizo que podrían
causar la pérdida de control y el vuelco del tractor y la
cortadora.
— Evite bajar completamente y golpear el suelo cuando
cruza en sentido diagonal depresiones marcadas y
hundimientos.
Mantenga
el control,
desplácese
Agregue lastre,
ensanche la
separación entre
las ruedas
Evite los pozos,
baches y agujeros
Use extremo cuidado al mantener la estabilidad de los
equipos durante todos los trabajos de corte en terrenos
desparejos y pendientes. Usted es quien juzga en última
instancia si en cualquier pendiente se puede trabajar con
seguridad.
Operación con seguridad
Prácticas de seguridad para el transporte en caminos
Antes de operar en la vía pública:
— Consulte los manuales del operador de los fabricantes
de la cortadora y del tractor para ver instrucciones.
— Explique las instrucciones a los usuarios u operadores
que no puedan leerlas.
— Verifique las ordenanzas locales sobre marcas, luces,
balizas, etc. requeridas en los equipos durante el
desplazamiento por la vía pública. Se requieren luces
en las cortadoras que obstaculizan la visibilidad de las
luces traseras y/o las luces de advertencia del tractor.
— Cuando transporte la cortadora de césped en un
remolque, siga las instrucciones detalladas del fabricante
para la carga, el amarre y la descarga de la cortadora.
Antes de transportar en la vía pública:
— Desconecte la alimentación de la TDF a la cortadora.
— Eleve la cortadora a la posición de transporte y aplique
la traba para transporte.
— Trabe los laterales de la cortadora de césped en la
posición de transporte con dispositivos de bloqueo
aprobados.
— Instale una cadena de seguridad para remolque entre la
cortadora tipo de tiro y el tractor.
— Asegúrese de que las luces, las luces de advertencia y
los reflectores están en su lugar y son visibles.
— Verifique que el emblema de vehículo de movimiento le
resulte visible a cualquier vehículo que se aproxime por
atrás.
Durante el transporte en la vía pública:
— Obedezca todas las ordenanzas de tránsito locales.
— Acérquese a las intersecciones con precaución.
— Observe los letreros de velocidad y control del tránsito.
— Evite las paradas de emergencia y los giros cerrados.
Sea un operador amable y apártese periódicamente para
dejar pasar el tránsito.
Lea y asegúrese
de comprender los
manuales antes
de comenzar la
operación
STOP
YIELD
Obedezca las
ordenanzas de
tránsito
17
Estacionamiento seguro
Prácticas de seguridad para el estacionamiento
— Use las zonas designadas o alejadas del tránsito.
— Use lugares con suelo firme y nivelado.
— Aplique el freno de estacionamiento.
— Descienda el equipo de la cortadora de césped hasta
el suelo.
P
Apague la cortadora y el tractor usando la práctica
correcta de apagado de equipos antes de descender del
tractor. (Consulte la página 18, Prácticas correctas de
apagado de los equipos.)
Lugares de estacionamiento con suelo en pendiente:
— Ubique los equipos transversalmente con respecto a la
pendiente.
— Aplique los frenos de estacionamiento.
— Descienda el equipo de la cortadora de césped hasta
el suelo.
— Bloquee las ruedas del tractor.
Aplique el freno de
estacionamiento
Descienda
los equipos elevados
hasta el suelo
Antes de estacionar temporalmente y dejar equipos
deshabilitados cerca de zonas con tránsito:
— Retire los equipos de la vía pública.
— Instale banderas de advertencia.
— Use las balizas de advertencia del tractor.
Apagado con seguridad
Prácticas correctas de apagado de los equipos
PTO
Transforme el apagado correcto de los equipos en un hábito.
El apagado correcto de un tractor y una cortadora
de césped puede ayudar a evitar accidentes cuando
la cortadora está sin vigilancia. Apague la cortadora
siguiendo los procedimientos específicos del manual
del operador del fabricante. Estos procedimientos
normalmente incluirán:
— Reduzca la velocidad del motor.
— Desenganche el embrague de la TDF y la transmisión.
— Haga funcionar el motor en ralentí para que se enfríe
gradualmente.
— Coloque todos los controles en la posición de
estacionamiento.
— Aplique el freno de estacionamiento.
— Descienda la cortadora de césped hasta el suelo.
— Descienda los laterales de las cortadoras con laterales
hasta el suelo.
— Apague el motor, trabe la ignición y retire la llave de la
máquina; llévela con usted.
— Espere hasta que todas las piezas móviles se hayan
detenido antes de descender.
— Libere la presión hidráulica moviendo los controles
hidráulicos varias veces en todas las direcciones.
— Trabe las cubiertas y los cerramientos antivandalismo, si
están instalados, cuando los equipos están sin vigilancia.
— Descienda con cuidado manteniendo contacto de tres
puntos.
18
Desenganche la TDF,
aplique el freno
STOP
P
Descienda los
equipos elevados
hasta el suelo
Espere hasta que las
piezas giratorias se
detengan
Retire la llave, trabe
la ignición, llévese
la llave
Apagado con seguridad
Descenso correcto
— Nunca descienda de equipos en movimiento.
— Nunca baje de una máquina saltando.
— Descienda con cuidado.
— Verifique que no haya peldaños resbaladizos.
— Mantenga los pies y las manos lejos de los controles.
— Use los asideros y los peldaños durante el descenso.
— Enfrente la máquina y use contacto de tres puntos (2
manos y 1 pie o 2 pies y 1 mano).
Espere hasta que las
piezas móviles se
detengan
Use contacto de tres
puntos; enfrente a
la máquina
Realización de mantenimiento con seguridad
Mantenimiento de los equipos
Realice el
mantenimiento de
los equipos
Asegúrese de mantener los equipos de acuerdo con las
instrucciones del fabricante. Verifique con regularidad el
funcionamiento de los dispositivos de protección y de
seguridad.
No realice ningún trabajo en un tractor o en una cortadora
de césped si no está autorizado y cualificado para
hacerlo.
Si ha sido autorizado para realizar mantenimiento, lea
los manuales del operador y de servicios. Estudie las
instrucciones; verifique las tablas de lubricación; examine
todos los mensajes de instrucciones que haya sobre la
máquina. El mantenimiento puede ser peligroso si no se
realiza correctamente. Asegúrese de tener las habilidades
necesarias, la información y las herramientas y equipos
correctos para realizar el trabajo.
¡ADVERTENCIA! No modifique equipos ni agregue
componentes no aprobados por el fabricante. Use
piezas, lubricantes y técnicas de servicio recomendadas
por el fabricante.
Piezas de la cortadora de césped y seguridad
personal
Los fabricantes de cortadoras de césped usan
sujetadores y específicos y piezas especialmente
diseñadas para cumplir con los requisitos de las
operaciones de las cortadoras. Las piezas críticas (pernos
autobloqueantes de las hojas, hojas, pasadores, escudos
y otros componentes especiales) tienen requisitos
específicos de resistencia, diseño y ajuste para la marca y
el modelo de cortadora que usted está usando.
Evite posibles lesiones graves o la muerte por el uso de
piezas o modificaciones no aprobadas:
— No sustituya con tornillería común los pernos de las
hojas u otros componentes de piezas especiales
originales del fabricante.
— No sustituya hojas, pasadores, escudos u otras piezas
críticas.
— No use pernos de mayor resistencia para reemplazar
los pernos de seguridad originales del fabricante.
19
Realización de mantenimiento con seguridad
Preparación personal
Use la ropa de protección personal y los equipos de
protección personal (PPE) que se le proporcionen o que
requieran las condiciones del trabajo. SIEMPRE debe
usar gafas de seguridad con escudos laterales.
Puede necesitar también:
— Casco
— Calzado de seguridad
— Anteojos de seguridad, antiparras o protección facial
— Delantal y guantes
— Protección para oídos
— Casco o antiparras para soldar
— Respirador o máscara con filtro
Use la ropa necesaria; no corra ningún riesgo.
Mantenga las manos (y la ropa)alejadas de todas las
piezas móviles. No use cordones sueltos, mangas flojas,
anillos, relojes o cabello largo.
¡ADVERTENCIA! Evite lesiones graves o muerte por
enredos. No use ropa floja ni accesorios. Manténgase
alejado de todos los componentes giratorios cuando
el motor está en funcionamiento. El contacto, el
enrollado o el enredo con piezas giratorias o móviles
podrían resultar en lesiones graves o la muerte.
Evite las piezas
giratorias
Evite puntos donde
pueda quedar
atrapado
Realización de mantenimiento con seguridad
Use un delantal de caucho y guantes de caucho cuando
trabaja con sustancias corrosivas. Use guantes y calzado
de seguridad cuando manipula bloques de madera o
metales con bordes agudos.
Use siempre anteojos de seguridad, antiparras o
protección facial. Proporcionan protección ocular para
fluidos bajo presión, mientras se esmerila y se realizan
servicios a las baterías. También es necesaria protección
contra residuos, líquidos y material suelto producido por
el equipo, las herramientas y el aire/agua presurizada.
Use protección facial y siga las instrucciones del
fabricante cuando desarma componentes cargados a
resorte o cuando trabaja con ácidos de batería. Use un
casco o antiparras para soldar con filtro esfumado cuando
suelda o corta con soplete.
No arene, esmerile, corte con soplete o suelde sin
un respirador aprobado por NIOSH o una ventilación
adecuada. Si se requiere soldar en esta máquina, consulte
los manuales del operador o de servicios del fabricante o
consulte al concesionario de los equipos para obtener los
procedimientos correctos.
Mantenga los bolsillos sin objetos que podrían salirse y
caer dentro de la maquinaria.
20
Limpie las
superficies
resbaladizas
Ventile la zona
de trabajo
Maneje las herramientas y las piezas pesadas con
sensatez con respecto a usted mismo y a otras personas.
Deposite los elementos, no los deje caer.
Preparación de la zona de trabajo
— Ubique la cortadora de césped en una zona nivelada
fuera del paso de otros equipos en funcionamiento.
— Asegúrese de que haya luz, ventilación y espacio libre
adecuados.
— Quite el aceite, la grasa o el agua para eliminar toda
superficie resbaladiza.
— Limpie alrededor de la zona donde se realizarán
servicios para minimizar la contaminación.
Realización de mantenimiento con seguridad
Preparación de la máquina
Deben controlarse o reducirse las fuentes de energía
almacenada (eléctricas, mecánicas, hidráulicas,
neumáticas, químicas, térmicas, etc.) al mínimo
practicable antes de realizar cualquier procedimiento de
mantenimiento, reparación o servicio.
Prácticas de seguridad para prevenir posibles lesiones
por fuentes que liberan energía:
— Desenganche la TDF antes de apagar el motor.
— Coloque los controles en la posición de estacionamiento
o punto muerto antes de apagar el motor.
— Aplique el freno de estacionamiento o bloquee las
ruedas.
— Espere hasta que todas las piezas móviles se
detengan.
— Descienda la cortadora de césped hasta el suelo.
— Descienda los laterales de las cortadoras con laterales
hasta el suelo.
— Apague el motor del tractor.
— Libere la presión del sistema hidráulico moviendo los
controles varias veces en todas las direcciones.
— Trabe la ignición, retire la llave y llévesela.
Prepare los
sistemas de la
máquina para
realizarles servicios
— Escuche y observe en busca de evidencias que
indiquen piezas en movimiento antes de descender.
— Apoye o bloquee con seguridad la cortadora de
césped antes de trabajar debajo de ella o de otros
componentes elevados.
— Apoye, bloquee o trabe con seguridad los laterales de la
cortadora con dispositivos de traba aprobados antes de
trabajar cerca o debajo de una cortadora con laterales.
— Alivie la presión antes de desconectar o desarmar un
sistema presurizado.
— Bloquee o alivie la presión de los resortes antes de
desarmar un mecanismo cargado a resorte.
— Apoye o bloquee con seguridad cualquier componente
elevado de la máquina antes de trabajar en él.
— Evite las llamas, las chispas y no fume cerca de
combustibles, fluido hidráulico u otro material
inflamable como los residuos de los cortes.
Realización de mantenimiento con seguridad
Fije una etiqueta con la advertencia “NO PONER EN
FUNCIONAMIENTO” en todas las palancas de control y
retire la llave de contacto si la cortadora de césped no
debe ser utilizada. Llévese la llave.
Use una “etiqueta que
indique No poner en
funcionamiento”
Instale dispositivos de apoyo aprobados cuando trabaja
debajo o cerca de equipos elevados.
¡ADVERTENCIA! Las cortadoras de césped u otros
equipos elevados no apoyados pueden caerse de manera
imprevista. Nunca se introduzca debajo de equipos
elevados si no están apoyados en dispositivos de
apoyo aprobados. La caída de equipos podría resultar en
una lesión grave o la muerte por aplastamiento.
Retire sólo las guardas o cubiertas que permiten acceder
a la zona donde se realizarán servicios. Vuelva a colocar
todas las guardas y cubiertas cuando el trabajo esté
terminado.
Utilice
dispositivos de apoyo
aprobados
Vuelva a colocar
todas las guardas
21
Realización de mantenimiento con seguridad
Use ventilación adecuada
Si es necesario hacer funcionar un motor en una zona
cerrada, elimine del área las emanaciones de escape
con una extensión del caño de escape. Si no tiene esa
extensión, asegúrese de abrir las puertas y dejar entrar
aire del exterior.
¡ADVERTENCIA! Evite posibles lesiones. Nunca trabaje
en la maquinaria con el motor en funcionamiento salvo
que así lo indiquen los manuales del fabricante para
un servicio en particular.
Retire la llave y
lea el manual de
mantenimiento
Ventile la zona
de trabajo
¡ADVERTENCIA! Nunca haga funcionar ningún tipo de
motor sin la ventilación adecuada: LAS EMANACIONES
DEL ESCAPE PUEDEN SER MORTALES.
Use gatos y malacates con cuidado
Los soportes o bloques de seguridad deben ubicarse
en una parte rígida de la cortadora. No ubique soportes
debajo de ejes o apoyos de ruedas que puedan girar.
Si debe trabajar debajo de equipos elevados, siempre
use bloques de madera (no de concreto), soportes de
gato u otros soportes rígidos y estables. Cuando use
gatos o malacates, siempre asegúrese de que están
correctamente apoyados.
¡ADVERTENCIA! Evite posibles lesiones por
aplastamiento. Nunca use bloques de concreto para
apoyo. Pueden colapsar bajo cargas incluso livianas.
Use un apoyo
adecuado para los
equipos elevados
Asegúrese de que los malacates o gatos que usa estén en
buenas condiciones. Nunca use gatos con piezas rajadas,
dobladas o retorcidas. Nunca use cables pelados,
retorcidos o pellizcados. Nunca use ganchos doblados o
deformados.
Realización de mantenimiento con seguridad
Prácticas de seguridad para tareas de
mantenimiento comunes
Riesgos del combustible
¡ADVERTENCIA! Siempre use recipientes y/o equipos
de distribución de combustible aprobados.
Los combustibles son inflamables; por eso, debe cumplir
estas prácticas con el fin de reducir la posibilidad de un
accidente grave.
— Apague el motor y la ignición mientras carga combustible.
— Siempre conecte a tierra la boquilla de combustible
contra el cuello de llenado del depósito para evitar
chispas.
— Mantenga las chispas y llamas abiertas alejadas del
combustible.
— No fume mientras carga combustible o manipula
recipientes con combustible.
— No corte ni suelde en líneas, tanques o recipientes de
combustible ni cerca de ellos.
— No llene el depósito en exceso o derrame combustible.
Limpie el combustible derramado de inmediato.
22
Riesgos del refrigerante de motor
Los sistemas de refrigeración con líquidos acumulan
presión a medida que el motor se calienta; tenga suma
precaución antes de retirar la tapa del radiador.
Asegúrese de:
— Detener el motor y esperar que el sistema se enfríe.
— Usar ropa de protección y anteojos de seguridad.
— Girar la tapa del radiador lentamente hasta el primer
tope para permitir que la presión escape antes de
retirar la tapa por completo.
No fumar;
evitar las llamas
abiertas
Retire la tapa
del radiador
lentamente
Realización de mantenimiento con seguridad
Riesgos del sistema hidráulico
El sistema hidráulico se encuentra bajo presión siempre
que el motor está funcionando; puede conservar presión
incluso después de apagar el motor. Haga funcionar
todos los controles hidráulicos incluyendo el control
hidráulico auxiliar después de que el motor esté apagado.
Alivie la presión atrapada en las líneas después de que los
accesorios están apagados y apoyados en el suelo.
Durante la inspección del sistema hidráulico:
— Espere que el fluido se enfríe antes de desconectar
las líneas. El fluido hidráulico caliente puede causar
QUEMADURAS GRAVES.
— No use las manos para verificar la presencia de fugas.
En cambio, use un cartón o papel para buscar fugas.
— Use protección ocular adecuada. El fluido hidráulico
puede causar lesiones oculares permanentes.
¡ADVERTENCIA! El fluido hidráulico bajo presión pueden
penetrar la piel o los ojos y causar lesiones graves,
ceguera o la muerte. Las fugas de fluido bajo presión
pueden no ser visibles. Utilice un cartón o una madera
para buscar fugas, no la mano. Use una protección
facial o antiparras de seguridad para proteger los
ojos. Si el fluido se inyecta en la piel, debe ser extraído
dentro de las próximas pocas horas por personal médico
familiarizado con este tipo de lesión.
Cuando ventila o llena el sistema hidráulico, afloje la tapa
de llenado con lentitud y retírela gradualmente.
Nunca restablezca una válvula de alivio del sistema
hidráulico a una presión mayor que la recomendada por el
fabricante.
Use protección
ocular
El fluido a
alta presión puede
inyectarse en el
cuerpo
Realización de mantenimiento con seguridad
Riesgos del sistema eléctrico
Antes de trabajar en el sistema eléctrico, desconecte los
cables de la batería.
— Retire primero los cables negativos (-) de la batería.
— Al reconectar la batería, conecte los cables negativos
(-) de la batería al final.
El líquido del interior de las baterías contiene ácido,
que es un VENENO y puede causar QUEMADURAS
QUÍMICAS GRAVES.
Evite lesiones
— Use una protección facial para evitar el contacto con
los ojos.
— Use guantes y ropa resistentes a los productos
químicos para mantener al electrolito alejado de la piel
y la ropa común.
Use guantes de caucho y ropa de protección para
mantener el electrolito lejos de la piel. Si el electrolito
entra en contacto con la piel o la ropa, lave de inmediato
con agua limpia.
Si se ingiere, busque atención médica de inmediato.
NUNCA proporcione líquidos que induzcan el vómito.
Use protección
facial
Use indumentaria
de protección
¡ADVERTENCIA! El contacto con el electrolito daña
los ojos y la piel. Siempre use una protección facial
para evitar que el electrolito penetre en los ojos. Si el
electrolito entra en contacto con los ojos, enjuague de
inmediato con agua limpia y busque atención médica.
23
Realización de mantenimiento con seguridad
Evite explosiones
¡ADVERTENCIA! Evite posibles lesiones graves por
explosiones. Las baterías de plomo-ácido producen
gases sumamente explosivos, especialmente durante la
carga. Mantenga alejados los arcos, las chispas, las
llamas y el tabaco encendido.
— No fume cerca de las baterías.
— Mantenga los arcos, las chispas y llamas abiertas
alejadas de las baterías.
— Proporcione ventilación adecuada.
Nunca revise la batería colocando un objeto metálico
entre los bornes: la chispa resultante podría causar una
explosión.
¡ADVERTENCIA! Evite posibles lesiones graves por
explosiones de baterías. No cargue baterías ni arranque
con refuerzo el motor si la batería está congelada.
Caliente a 60 °F (15,5 °C) o la batería puede explotar y
causar lesiones graves.
Reglas de seguridad durante el arranque con refuerzo de
batería:
— Siga las instrucciones para el “arranque con refuerzo
de batería” correcto como se especifica en el manual
del fabricante.
— Asegúrese de que las máquinas no se estén tocando.
— Observe la polaridad de las baterías y conexiones.
— Realice la conexión final de cable al motor o al punto
de tierra más alejado de la batería. Nunca realice la
conexión final en el arrancador o la batería muerta: las
chispas pueden encender gases explosivos presentes
en la batería.
— Cuando desconecta cables después de un arranque
con puente, retire los cables en el orden inverso al de la
conexión (es decir, la conexión final primero).
Evite las chispas
y las llamas abiertas
cerca de las
baterías
Para el arranque
con refuerzo, observe
la polaridad y realice
la conexión final en
el punto de descarga
a tierra
Realización de mantenimiento con seguridad
Mantenimiento de neumáticos y ruedas
Revise los neumáticos y las ruedas a diario porque la
estabilidad del tractor y la cortadora de césped puede
verse significativamente afectada por la presión de los
neumáticos o daños en los neumáticos o en las ruedas.
Revise los neumáticos para verificar:
— La presión correcta.
— Cortes y protuberancias.
— Clavos u otras pinchaduras.
— Desgaste desparejo o excesivo.
— Estado de los vástagos y tapas de las válvulas.
Revise las ruedas para verificar:
— Daños en las llantas.
— Tuercas o pernos faltantes o flojos.
— Desalineación.
Todos los servicios de neumáticos deben ser realizados
por un centro de servicios para neumáticos cualificado
o por una persona de servicio autorizada debidamente
capacitada en los procedimientos y el uso del equipo de
seguridad destinado a los servicios de neumáticos.
24
Revise los
neumáticos y las
ruedas en busca
de daños
Mantenga la
presión correcta en
los neumáticos
Realización de mantenimiento con seguridad
Mantenimiento de neumáticos y ruedas
(continuación)
¡ADVERTENCIA! Los tipos de ruedas y neumáticos
que generalmente se encuentran en estos equipos
requieren cuidados especiales al realizar servicios
para evitar lesiones graves o la muerte.
No infle los neumáticos por encima de la presión
recomendada. Asegúrese de volver a colocar el lastre
de los neumáticos si está instalado. Consulte las
especificaciones del fabricante para ver los requisitos
de lastre.
Mantenga las tuercas de las ruedas apretadas según las
recomendaciones del fabricante.
Es normal que la presión de los neumáticos aumente
durante el funcionamiento; NO se debe reducir.
Nunca vuelva a inflar un neumático que se ha desinflado
mucho o por completo sin retirar el neumático de la
rueda. Haga inspeccionar atentamente el neumático y la
rueda para detectar daños antes de volverlos a armar.
Al agregar aire a un neumático, hágalo desde cierta
distancia. Use una manguera larga con mandril de
autofijación. Siempre párese detrás de la trocha cuando
ajusta la presión de un neumático.
Evite la explosión
de los neumáticos
No infle neumáticos con gases inflamables o con sistemas
que usan un inyector de alcohol.
Nunca corte o suelde una rueda con un neumático inflado
instalado en ella. Esto podría causar descompresión
explosiva.
Verifique que el tamaño del neumático y la rueda
coincidan correctamente.
Cuando reemplaza neumáticos, asegúrese de que sean de
la clasificación adecuada especificada por el fabricante.
Los neumáticos no deben funcionar a velocidades más
altas que las nominales. La mayoría de los neumáticos
para agricultura están clasificados para una velocidad
máxima de 20 mph (32 km/h).
Realización de mantenimiento con seguridad
Servicio y reparaciones completas antes de
liberar la máquina
Apriete todos los pernos, accesorios y conexiones con las
torsiones especificadas por el fabricante.
Verifique el trabajo
de servicio cuando
está completo
Instale todas las guardas, cubiertas y escudos después
de realizar los servicios. Reemplace o repare los que
estén dañados. Llene y recargue los sistemas a presión
sólo con los fluidos aprobados o recomendados por el
fabricante.
Arranque el motor y revise para detectar fugas. (Consulte
la página 23, Riesgos del sistema hidráulico.) Haga
funcionar todos los controles para asegurarse de que el
tractor y la cortadora de césped funcionan correctamente.
Pruebe la máquina si es necesario. Después de las
pruebas, apague y verifique el trabajo realizado. ¿Falta
algún pasador, arandela, tuerca de seguridad, etc.?
Vuelva a revisar todos los niveles de fluidos antes de
liberar la máquina para el funcionamiento.
Todas las piezas deben ser inspeccionadas durante la
reparación y deben reemplazarse si están gastadas,
rajadas o dañadas. Las piezas excesivamente gastadas o
dañadas pueden fallar y causar lesiones o la muerte.
Mantenimiento de las hojas de la cortadora
No corra riesgos usando hojas dañadas o dobladas. Los
fabricantes de cortadoras de césped de la Asociación
de Fabricantes de Equipos (Association of Equipment
Manufacturers, AEM) y la Asociación de Fabricantes de
Equipos para Agricultura (Farm Equipment Manufacturers
Association, FEMA) piden que las hojas de cortadoras
NO se reutilicen, enderecen, refuercen en su superficie o
suelden. Si una hoja rota es arrojada por una cortadora,
podrían producirse lesiones graves o la muerte.
Reemplace cualquier letrero dañado o ilegible.
25
Realización de mantenimiento con seguridad
Mantenimiento de las hojas de la cortadora
(continuación)
— ¿Cómo están hechas las hojas de la cortadora
de césped? Están hechas acero para resortes de
aleación de alta resistencia. Se forjan en caliente y se
les da forma para cumplir con las especificaciones
individuales del fabricante; luego, se tratan y templan
a un estado dúctil, de alta resistencia para reducir la
posibilidad de rupturas durante el corte. Las hojas se
prueban para garantizar que cumplan con las normas
de resistencia, dureza y ductilidad. Si una hoja no
cumple con alguna de estas especificaciones, no se
utilizará en la cortadora de césped.
— ¿Qué sucede cuando se dobla una hoja de la
cortadora? Se necesita una gran fuerza de impacto
para doblar la hoja. Esta fuerza de impacto a menudo
resulta en que las hojas se agujerean o marcan. Una
vez que una hoja está dañada por un agujero o una
marca, es mucho más probable que ocurra una falla
de la hoja. Cuando una hoja está gravemente doblada,
puede crearse una rajadura microscópica en ella.
Enderezar la hoja no quita o repara esta rajadura, sino
que puede causar rajaduras adicionales.Tensiones
adicionales durante los trabajos de corte pueden
resultar en una falla imprevista de la hoja.
— Evite doblar las hojas. Contribuya a prevenir que las
hojas de la cortadora se doblen o rajen evitando el
contacto con objetos sólidos. Las hojas de la cortadora
de césped están destinadas a cortar hierba, arbustos,
vegetación leñosa y árboles y ramas pequeños. No
están diseñadas para entrar en contacto con objetos
sólidos como roca, cemento o postes de acero.
Inspeccione la zona antes de usar la cortadora. Retire
o marque claramente los objetos sólidos y corte
alrededor de ellos.
— Sustituya las hojas dañadas! Inspeccione las hojas
de la cortadora diariamente o después de golpear
algún objeto sólido. Si una hoja de la cortadora de
césped se daña (está doblada, agujereada, rajada) o
desgasta más del 25 por ciento del tamaño original,
debe retirarse y sustituirse con una nueva. Siempre use
las hojas originales del fabricante. Las hojas de marcas
no originales pueden no cumplir con los requisitos de
resistencia, dureza y ductilidad del fabricante de la
cortadora.
— No corra riesgos usando hojas dañadas o dobladas.
El uso de una hoja de cortadora dañada o enderezada
puede resultar en la ruptura de la hoja y que la hoja
sea arrojada hacia el operador o una persona ajena
causando una lesión grave o la muerte. El precio
de una nueva hoja es bajo en comparación con la
posibilidad de una lesión grave que podría resultar de
una hoja doblada o rota arrojada por la cortadora
Palabras finales para el usuario
Acaba de terminar de leer el Manual de la cortadora de
césped industrial y para agricultura AEM. Es imposible
que este manual abarque todas las situaciones
de seguridad que se podría encontrar a diario. Su
conocimiento de estas precauciones de seguridad y
de su cumplimiento de las reglas básicas de seguridad
contribuirán a formar un buen juicio en todas las
situaciones. Nuestro objetivo es ayudarlo a desarrollar,
establecer y mantener buenos hábitos de seguridad para
que la operación de una cortadora de césped industrial y
para agricultura le resulte más fácil y más segura.
Éste es otro manual de una serie publicada por AEM sobre la operación de maquinaria en condiciones de seguridad.
Muchas de las ilustraciones de este manual de seguridad se pueden encontrar y descargar en http://pictorials.aem.org.
Para obtener publicaciones adicionales, visite nuestro sitio web en www.safetymaterials.org.
ASOCIACIÓN DE FABRICANTES
DE EQUIPOS
Correo electrónico: safetymaterials@aem.org
www.aem.org
26
INTRODUCTION SECTION
Introduction Section 2-1
© 2019 Alamo Group Inc.
INTRODUCTION
INTRODUCTION
This Mower is designed with care and built with quality materials by skilled workers. Proper assembly,
maintenance, and operating practices, as described in this manual, will help the owner/operator get years of
satisfactory service from the machine.
The purpose of this manual is to familiarize, instruct, and train. The Safety Section is a MUST READ section
prior to any use of the mower. The Assembly Section instructs the owner/operator in the correct assembly of
the Mower using standard and optional equipment. Careful use and timely service saves extensive repairs and
costly downtime losses. The Operation Section informs the owner/operator how to work the mower and
explains proper procedures and safe practices prior to and during the operation of the mower. The TroubleShooting Guide helps diagnose difficulties with the mower and offers solutions to the problems. The
Maintenance Section instructs the owner/operator of all the necessary inspection, lubrication, general
maintenance needed to insure long life and trouble free operation of your mower. The Parts Listing section is
designed to familiarize the owner/operator with replaceable parts on the Mower.
Safety is of primary importance to the owner/operator and to the manufacturer. The first section of this manual
includes a list of Safety Messages, that, if followed, will help protect the operator and bystanders from injury or
death. Many of the Safety Messages will be repeated throughout the manual. The owner/operator/dealer
should know these Safety Messages before assembly and be aware of the hazards of operating this mower
during assembly, use, and maintenance. The Safety Alert Symbol combined with a Signal Word, as seen
below, is intended to warn the owner/operator of impending hazards and the degree of possible injury faced
when operating this machine.
Indicates an imminently hazardous situation that, if not avoided, WILL result in DEATH OR
VERY SERIOUS INJURY.
Indicates an imminently hazardous situation that, if not avoided, COULD result in DEATH
OR SERIOUS INJURY.
Indicates an imminently hazardous situation that, if not avoided, MAY result in MINOR
INJURY.
Identifies special instructions or procedures that, if not strictly observed, could result in
damage to, or destruction of the machine, attachments or the environment.
DHM7 05/19
© 2019 Alamo Group Inc.
Introduction Section 2-2
INTRODUCTION
INTRODUCTION
The DHM mowers have been performance tested and proven to reduce plugging and wrapping in both light
and heavy hay crops. Each cutter bar has been designed with added stiffness to provide exceptional strength
in all working conditions. Oval discs allow for superior flow of material over the cutter bar and a better
distribution of you hay crop. Robust, double-sided steel knives are perfectly timed to overlap at just the right
distance to provide a smooth, clean, clog-free cut.
The gear-driven cutter bar houses oiled and sealed bearings to reduce contamination and provide ease of
maintenance. A hydraulic mower bar cylinder effortlessly lifts the unit for end of field turns and transport.
Ground pressure of the cutter bar can be easily adjusted for a variety of ground conditions. Crop dividers come
standard to provide clear distinction between cut and standing hay.
Mowers feature a mechanical breakaway to protect units from damage when striking an unexpected obstacle.
For Non-Agricultural use, OSHA, ASABE, SAE, and ANSI standards require the use of
Chain Guards, Deflectors, or Solid Skirts at all times. The Mower manufacturer strongly
recommends the use of Chain Guards or Rubber Deflectors for Agricultural purposes as
well, to reduce the risk of property damage, serious bodily injury, or even death from objects
thrown out by or from contact with the Cutting Blades.
At least 20% or the tractor’s weight must be on the front tires with the Mower lifted to
provide adequate traction for safe steering under good conditions. Slow down on hills,
rough terrain, and curves.
The front, rear, left, and right are determined by the normal direction of travel, the same as driving an
automobile.
DHM7 05/19
© 2019 Alamo Group Inc.
Introduction Section 2-3
INTRODUCTION
Attention Owner/Operator
BEFORE OPERATING THIS MACHINE:
1. Carefully read the Operator’s Manual, completely understand the Safety Messages and instructions, and
know how to operate correctly both the tractor and implement.
INTRODUCTION
2. Fill out the Warranty Card in full. Be sure to answer all questions, including the Serial Number of the
implement. Mail within 30 days of delivery date of this implement.
NOTE: Warranties are honored only if completed “Owner Registration and Warranty” forms are received by
Bush Hog within thirty days of delivery of the implement.
3. Record the Model and Serial Numbers on the Warranty page at the front of the Operator’s Manual. Keep this
as part of the permanent maintenance file for the implement.
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Introduction Section 2-4
INTRODUCTION
LIMITED WARRANTY
22222222222222222222222222222222
Bush Hog warrants to the original purchaser of any new Bush Hog equipment, purchased from an authorized
DISCLAIMER OF IMPLIED WARRANTIES & CONSEQUENTIAL DAMAGES
Bush Hog’s obligation under this limited warranty, to the extent allowed by law, is in lieu of all warranties,
implied or expressed, INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE and any liability for incidental and consequential damages with respect to the sale or use of the items
warranted. Such incidental and consequential damages shall include but not be limited to: transportation
charges other than normal freight charges; cost of installation other than cost approved by Bush Hog; duty;
taxes; charges for normal service or adjustment; loss of crops or any other loss of income; rental of substitute
equipment, expenses due to loss, damage, detention or delay in the delivery of equipment or parts resulting
from acts beyond the control of Bush Hog.
THIS LIMITED WARRANTY SHALL NOT APPLY:
1. To vendor items which carry their own warranties, such as engines, tires, and tubes.
2. If the unit has been subjected to misapplication, abuse, misuse, negligence, fire or other accident.
3. If parts not made or supplied by Bush Hog have been used in connection with the unit, if, in the sole
judgement of Bush Hog such use affects its performance, stability or reliability.
4. If the unit has been altered or repaired outside of an authorized Bush Hog dealership in a manner which, in
the sole judgement of Bush Hog, affects its performance, stability or reliability.
5. To normal maintenance service and normal replacement items such as gearbox lubricant, hydraulic fluid,
worn blades, or to normal deterioration of such things as belts and exterior finish due to use or exposure.
6. To expendable or wear items such as teeth, chains, sprockets, belts, springs and any other items that in
the company’s sole judgement is a wear item.
NO EMPLOYEE OR REPRESENTATIVE OF BUSH HOG IS AUTHORIZED TO CHANGE THIS LIMITED
WARRANTY IN ANY WAY OR GRANT ANY OTHER WARRANTY UNLESS SUCH CHANGE IS MADE IN
WRITING AND SIGNED BY BUSH HOG’S SERVICE MANAGER, 2501 GRIFFIN AVE., SELMA, ALABAMA
36703.
22222222222222222222222222222222
Record the model number, serial number and date
purchased. This information will be helpful to your
dealer if parts or service are required.
MAKE CERTAIN THE WARRANTY
HAS BEEN FILED WITH BUSH HOG
SELMA, ALABAMA
MODEL NUMBER _________________________
SERIAL NUMBER _________________________
DATE OF RETAIL SALE ____________________
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Introduction Section 2-5
INTRODUCTION
Bush Hog dealer, that the equipment be free from defects in material and workmanship for a period of one (1)
year for non-commercial, state and municipalities’ use and ninety (90) days for commercial use from date of
retail sale. The obligation of Bush Hog to the purchaser under this warranty is limited to the repair or
replacement of defective parts.
Replacement or repair parts installed in the equipment covered by this limited warranty are warranted for
ninety (90) days from the date of purchase of such part or to the expiration of the applicable new equipment
warranty period, whichever occurs later. Warranted parts shall be provided at no cost to the user at an
authorized Bush Hog dealer during regular working hours. Bush Hog reserves the right to inspect any
equipment or parts which are claimed to have been defective in material or workmanship.
ASSEMBLY SECTION
Assembly Section 3-1
ASSEMBLY
TECHNICAL NOTES TO AID IN ASSEMBLY OF DHM7
The examples will make it easier to choose which of the various accessories to use for each step of assembly.
An approximate equivalent of the metric measurements is given in inches.
Pins and Screws
ASSEMBLY
Example: A pin with a 25mm (1”) diameter and a
screw with a M16 (5/8”) diameter, both 50mm (2”)
long, will be listed as: D 25x50 (D 1”x2”) and M16x50
(D 5/8” x 2”)
Shims, Spacers, Bushings and Washers
Example: A shim, spacer, bushing or washer with an
inside diameter of 25mm (1”), outside diameter of
50mm (2”) and thickness or length or 13mm (1/2”)
will be listed as: D 25-50x13 (D 1” - 2” x 1/2”)
Nuts, Grease Nipples
Example: A nut or grease nipple having a thread of
M 8 (5/6”) will be listed as: M 8 (5/16”)
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Assembly Section 3-2
ASSEMBLY
Refer to fig. 1 and carry out the following steps in the order indicated:
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Assembly Section 3-3
ASSEMBLY
1. Use special nut 32 and special washer 31 already in the spindle to mount disc-conveyor 30 (dynamometric
spanner set at 32 kgm \320Nm torque) in the cutterbar (see picture detail). Pay attention to discs layout,
see fig.15.
2. Use pin 3 - D 30 x 178 (D 1”3/16 x 7”) to insert support 1 into the special slot on frame 2 and fasten with
washer 4 (DIN 125A) and nut 5 - M 20 (D 3/4”).
3. Use the four screws 13 M 12 x 30 (D 1/2” x 1”11/64) and helical spring lock washers 16 (similar to DIN
127B) to mount support 11 on gear box 12.
4. Use pin 6 D 30 x 106 (D 1”3/16 x 4”) to insert distance washer 7 D 30 - 42 x 5 (D 1”3/16 - 1”5/8 x 3/16”), tie
rod 8, distance washer 9 D 30 - 42 x 10 (D 1”3/16 - 1”5/8 x 3/8”) and hydraulic cylinder 10 into the special
slot on support 1 and fasten into position with peg 15 D 8 x 50 (D 5/16” x 2”).
5. Use pin 14 D 25 - 19 x 45 - 67 (D 1” - 3/4” x 2” - 2”3/4) to insert hydraulic cylinder 10 into support 11. Do not
fasten at this stage.
ASSEMBLY
Refer to fig. 2 and carry out the following steps in the order indicated:
1. Insert rest foot 13 into the slot on support 1 and fasten into position with pegs 14 and 15 D 8 x 50 (D 5/16”
x 2”).
2. Use pin 2 D 28 - 30 - 22 x 260 (D 1”1/8 - 1”3/16 - 7/8” x 10”1/4) to insert arc 9 into the slot on support 1 and
fasten into position with washer 3 and nut 4.
3. Insert rest foot 10 into the slot on arc 9 and fasten into position with pegs 11 D 8 x 50 (D 5/16” x 2”) and 12.
ASSEMBLY
4. Insert pin 6 D 22 - 30 - 22 x 260 (D 7/8” - 1”3/16 - 7/8” x 10”1/4) into the slot on arc 9 and fasten into position with washer 7 (similar to DIN 127B) and ring nut 8.
5. Insert bushing 5 D 22 - 28 x 45 (D 7/8” - 1”1/8 x 1”3/4) into pin 6 for coupling (2nd class) to the tractor.
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Assembly Section 3-4
ASSEMBLY
Refer to fig. 3 and carry out the following steps in the order indicated:
1. Mount safety bar 1, hoist chain 11 with two clevis 17 and washer 18 (Ø23xØ39x3.5) in pin 2 and fasten
with peg 13.
2. Use pin 3 D 20 x 67 (D 3/4” x 2”5/8) to assemble safety bar 1 into slot 5 and fasten into position with E-clip
4.
3. Insert chain 6 (for adjustment see 7.3) into hole 13 on the arc and fasten one ring on the chain into slot 14.
4. Use screw 12 M 12 x 55 (D 1/2” x 2” 10/64) and nut 21 to fasten ring 7 on chain 6 to safety bar 1.
5. Use screws 9 M 8 x 12 (D 5/16” x 1/2”) and flat washer 20 (Ø8.5/Ø24) to assemble casing 10.
7. Mount grease nipple 19.
8. Tie the rope to the safety latch 32 and then thread it through the steel circle 33 (see figure detail).
9. Remember to link the spring 34 to transport hook 32 (see figure detail).
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Assembly Section 3-5
ASSEMBLY
6. Insert cardan support 8 into one of the holes not used by the pin on the third point.
ASSEMBLY
Refer to fig. 4 and carry out the following steps in the order indicated:
ASSEMBLY
1. Mount conveyor sheet 6 over the holes on support 7 and slide 1 and use screw 8 M 10 x 30 (D 3/8” x 1”11/
64) lock washer 20 (similar to DIN 127B) and washer 9 (DIN 125A) to fasten into position without tightening
at this stage.
2. Insert protection 10 into pin 17 together with screw 12 M 8 x 30 (D 5/16” x 1”3/16) and flat washer 11 (DIN
125A) and 14 (Ø9/24x2) into the hole on slide 1 and slot on conveyor sheet 6.
3. Use flat washer 14 (Ø9/24x2) and nut 13 and screw 8 to fasten screw 12 to support 7.
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Assembly Section 3-6
ASSEMBLY
Refer to fig. 5 and carry out the following steps in the order indicated:
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Assembly Section 3-7
ASSEMBLY
1. Mount the main tube 1 on the frame, move it on to flange 2 and 3 assembled with screws 4 M 12 x 55 (DIN
931), nuts 6 (M12) and flat washers 5 (DIN 125A), and at the same time insert the curved tube 16 into the
relevant hinge 18; do not tighten the set of screws 3-4-5-6 for the time being; make sure that the positioning tooth on tube 1 is held in the horizontal connection plane of flanges 2 and 3.
2. Insert tubes 7 and 10 into support 21 (DHM 7).
3. Insert the curved tubes 8 and 9 into the slots on tubes 10 and 7.
4. Mount the assembly set 7-8-9-10-21 on to the load bearing tube 1 connecting with welded screws 13 and
use flat washers 11 and nuts 12 to tighten.
5. Insert tubes 14 and 15 into support 22 (DHM 7).
6. Insert assembly set 14-15-22 into hinge 18 connecting with load bearing tube 1.
7. Use washer 19 (DIN 125A) and nut 20 (M10) to tighten hinge 22 into slot 18.
8. At the same time insert the curved tube 16 in to the relevant hinge 18 and into tubes 14 and 15 and use flat
washer 19 (DIN 125A) and nut 20 (M10) to tighten the hinges in the corresponding slot 18.
9. Carry out the same operation with curved tube 17, hinge 18, washer 19 (DIN 125A) and nut 20 (M10).
10. Use screws 24 M 8 x 25 (DIN 933), washer 25 (DIN 125A) nut 26 (M8) to mount support 23 in the curved
tube 9.
11. Mount conveyor 37 in the support 27 with screw 34 M 10 x 35 (DIN 933), washer 31 (DIN 125A), and nut
30 (M10). Also use screw 38 M 12 x 35 (DIN 933) and nut 39 (M12). Use the slot 35 to change the position
of conveyor.
12. Mount screw 28 M 10 x 20 (DIN 933).
13. Secure the curtain 30 with front protection flipped towards the rear lacing ALL the straps 31 on the under
side of the curtain (see figure detail).
14. (OPTIONAL) Mount conveyor 33 in the support 36 of screw 34 M 10 x 35 (DIN 933), washer 31 (DIN
125A), and nut 30 (M10); also use nut 39 (M12). Use the slot 35 to change the position of conveyor.
ASSEMBLY
ASSEMBLY
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Assembly Section 3-8
OPERATION SECTION
Operation Section 4-1
OPERATION
DHM 7 DISC MOWER
OPERATION INSTRUCTIONS
OPERATION
Bush Hog’s latest edition of Hay Mower includes DHM7 Model with a mowing width of 7’ to meet the hay
production requirement of today’s farmers and ranchers. The mower is equipped with protective deflectors
and/or chain guards to prevent objects being thrown from the mower by the blades, however, no shielding is
100% effective. All shields, guards, deflectors, and chains equipped on the unit must be maintained on the
mower in good operational condition.
It is the operator’s responsibility to be knowledgeable of all potential operating hazards and to take every
reasonable precaution to ensure oneself, others, animals, and property are not injured or damaged by the
mower, tractor, or a thrown object. Do not operate the mower if passersby, pets, livestock, or property are
directly in front or to the rear of the unit.
This section is designed to familiarize, instruct, and educate safe and proper mower use to the operator.
Pictures in this section are for the purpose of explaining the operation of a rotary mower and are not
necessarily of an DM cutter. Some pictures may show shields removed for purposes of clarity. NEVER
OPERATE this implement without all shields in place and in good operational condition. The operator must be
familiar with mower and tractor operation and all associated safety practices before operating the mower and
tractor. Proper operation of the DM mower, as detailed in this manual, will help ensure years of safe and
satisfactory use of the mower.
IMPORTANT: To avoid mower damage, retorque all bolts after the first 10 hours of operation. Retighten blade
carrier retaining nut on gearbox lower shaft to 300 ft. lbs.
READ AND UNDERSTAND THE ENTIRE OPERATING INSTRUCTIONS AND SAFETY SECTION OF THIS
MANUAL AND THE TRACTOR MANUAL BEFORE ATTEMPTING TO USE THE TRACTOR AND
IMPLEMENT. If you do not understand any of the instructions, contact your nearest authorized dealer for a
full explanation. Pay close attention to all safety signs and safety messages contained in this manual and
those affixed to the implement and tractor. OPS-U- 0001
READ, UNDERSTAND, and FOLLOW the following Safety Messages. Serious injury or
death may occur unless care is taken to follow the warnings and instructions stated in the
Safety Messages. Always use good common sense to avoid hazards. (SG-2)
Si no lee ingles, pida ayuda a alguien que si lo lea para que le traduzca las
medidas de seguridad. (SG-3)
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Operation Section 4-2
OPERATION
1. Standard Equipment and Specifications
DHM7
6’9”
Number of Oval Discs
5
Blades per Disc
2
Driveline Size CAT
4
Minimum PTO HP
40
Hitch
CAT 2
PTO Speed
540 RPM
Safety Chain
Standard
Machine Weight
906
The Mower is designed for certain mowing applications and is rated to cut up to a specific
size vegetation (see Mower Standard Equipment and Specifications). DO NOT use this
mower to cut vegetation above the Mower’s rated capacity or to cut any type of nonvegetative material. Only operate this Mower on a properly sized and equipped Tractor.
Operating this Mower in an application for which it is not designed and/or operating the
Mower with the wrong size Tractor can cause Mower component damage and equipment
failure resulting in possible serious injury or death. (SGM-14)
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Operation Section 4-3
OPERATION
Mowing Width
OPERATION
2. OPERATOR REQUIREMENTS
OPERATION
Safe operation of the unit is the responsibility of a qualified operator. A qualified operator has read and
understands the implement and tractor Operator’s Manuals and is experienced in implement and tractor
operation and all associated safety practices. In addition to the safety messages contained in this manual,
safety signs are affixed to the implement and tractor. If any part of the operation and safe use of this
equipment is not completely understood, consult an authorized dealer for a complete explanation.
If the operator cannot read the manuals for themselves or does not completely understand the operation of the
equipment, it is the responsibility of the supervisor to read and explain the manuals, safety practices, and
operating instructions to the operator.
Safe operation of equipment requires that the operator wear approved Personal Protective Equipment (PPE)
for the job conditions when attaching, operating, servicing, and repairing the equipment. PPE is designed to
provide operator protection and includes the following safety wear:
PERSONAL PROTECTIVE EQUIPMENT (PPE)
•
•
•
•
•
•
•
Always Wear Safety Glasses
Hard Hat
Steel Toe Safety Footwear
Gloves
Hearing Protection
Close Fitting Clothing
Respirator or Filter Mask (depends
operating conditions) OPS-U- 0002
on
DO NOT use drugs or alcohol immediately before or while operating the
Tractor and Implement. Drugs and alcohol will affect an operator’s
alertness and coordination and therefore affect the operator’s ability to
operate the equipment safely. Before operating the Tractor or Implement,
an operator on prescription or over-the-counter medication must consult
a medical professional regarding any side effects of the medication that
would hinder their ability to operate the Equipment safely. NEVER
knowingly allow anyone to operate this equipment when their alertness or
coordination is impaired. Serious injury or death to the operator or others
could result if the operator is under the influence of drugs or alcohol. (SG-27)
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Operation Section 4-4
OPERATION
3. TRACTOR REQUIREMENTS
The tractor used to operate the mower must have the power capacity to lift, pull, and operate the Power Take
Off (PTO) at the mower’s rated speed while traveling at a ground speed between 2 and 5 MPH. Operating the
mower with a tractor that does not meet the following requirements may cause tractor or mower damage and
be a potential danger to the operator and passersby.
Tractor Requirements and Capabilities
•
•
•
•
•
ASABE approved Roll-Over Protective Structure (ROPS) or ROPS cab and seat belt.
Tractor Safety Devices ...............................Slow Moving Vehicle (SMV) emblem, lighting, PTO master
shield
Tractor Horsepower-Minimum:
-DHM7........................40 HP
Hitch ...........................................................Cat II
Hitch Lifting Capacity..................................906 lbs.
Front End Weight .......................................As needed to maintain 20% weight on front axle
Power Take Off ...........................................540 RPM
3.1 ROPS and Seat Belt
The tractor must be equipped with a Roll-Over-Protective-Structure (ROPS) (tractor cab or roll-bar) and seat
belt to protect the operator from falling off the tractor, especially during a roll over where the driver could be
crushed and killed. Only operate the tractor with the ROPS in the raised position and seat belt fastened.
Tractor models not equipped with a ROPS and seat belt should have these life saving features installed by an
authorized dealer. OPS-U- 0003
Operate this Equipment only with a Tractor equipped with an approved rollover-protective system (ROPS). Always wear seat belts. Serious injury or even
death could result from falling off the tractor, particularly during a turnover when
the operator could be pinned under the ROPS. (SG-7)
3.2 Tractor Safety Devices
If transporting or operating the tractor and implement near a public roadway, the tractor must be equipped with
proper warning lighting and a Slow Moving Vehicle (SMV) emblem which are clearly visible from the rear of
the unit. Lights and a SMV emblem must be equipped directly on implements if the visibility of the tractor
warning signals are obscured.
Maintain all manufacturer equipped safety shields and guards. Always replace shields and guards that were
removed for access to connect, service, or repair the tractor or implement. Never operate the tractor PTO
with the PTO master shield missing or in the raised position. OPS-U- 0004
Tractor Horsepower
The power required to operate a mower is determined by the tractor PTO horsepower. For most mowing
conditions, the DHM7 mower requires a tractor with at least 40 HP. Operating the mower with a tractor that
does not have adequate power may damage the tractor engine. Exceeding 90 HP may cause mower damage
by overpowering the unit in heavy cutting conditions.
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Operation Section 4-5
OPERATION
•
•
OPERATION
3.3 3-Point Hitch
OPERATION
DHM mowers attach to tractor’s with a CAT II hitch.
Refer to the tractor operator’s manual for the
category of the tractor used. If the hitch does not
conform to ASABE CAT II dimensions, the mower
may not fit or raise properly. Consult an authorized
dealer for possible modication procedures to mount
nonconforming hitches.
Use the correct hitch pins. The CAT II hitch requires
1-1/8” lower and 1” upper diameter hitch pins.
CAT II Implement / Hitch Specification
Width from outside to outside A-frame.........32-3/8”
Quick hitch width inside lug to lug................33-5/8”
Height from bottom hitch pin to top pin .............. 19”
Lower pin diameter ........................................1-1/8”
Upper pin diameter .............................................. 1”
Linch pin diameter ........................................ 15/32”
3.4 Front End Weight
A minimum of 20% total tractor weight must be maintained on the tractor front end at all times. Front end
weight is critical to maintain steering control and to prevent the tractor from rearing up while driving. If the
front end is too light, add weight until a minimum of 20% total weight is reached on the front tires. Front
weights and weight carriers can be purchased through an authorized tractor dealership. OPS-U- 0005
3.5 Power Take Off (PTO)
Depending on the unit, the mower is designed to operate at a PTO speed of 540 or 1000 RPM. Most tractors
operate at either 540, or a combination of 540 and 1000 RPM PTO speeds. The operating speed of the
mower and tractor can be determined by the number of splines on the driveline yoke and PTO output shaft.
Those operating at 540 RPM will have a 6-spline shaft and those operating at 1000 RPM will have a 21-spline
shaft or a 1-3/4” 20 spline shaft. Refer to the tractor owner’s manual for instructions to change PTO speeds on
models that operate at more than one speed.
If operating an older model tractor where the tractor’s transmission and PTO utilize one master clutch, an
over-running clutch must be used between the PTO output shaft and the driveline of the mower. An
authorized tractor dealer can provide the over-running clutch and its installation if needed. OPS-U- 0006
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Operation Section 4-6
OPERATION
DO NOT use a PTO adapter to attach a non-matching Implement driveline to a Tractor
PTO. Use of an adapter can double the operating speed of the Implement resulting in
excessive vibration, thrown objects, and blade and implement failure. Adapter use will also
change the working length of the driveline exposing unshielded driveline areas. Serious
bodily injury and/or equipment failure can result from using a PTO adapter. Consult an
authorized dealer for assistance if the Implement driveline does not match the Tractor PTO.
(S3PT-14)
4. GETTING ON AND OFF THE TRACTOR
Before getting onto the tractor, the operator must read and completely understand the implement and tractor
operator manuals. If any part of either manual is not completely understood, consult an authorized dealer for
a complete explanation. OPS-U- 0007
Do not mount or dismount the Tractor while the tractor is moving. Mount
the Tractor only when the Tractor and all moving parts are completely
stopped. (SG-12)
4.1 Boarding the Tractor
Use both hands and equipped handrails and steps for support when boarding the tractor. Never use control
levers for support when mounting the tractor. Seat yourself in the operator’s seat and secure the seat belt
around you.
Never allow passengers to ride on the tractor or attached equipment. Riders can easily fall off and be seriously
injured or killed from falling off and being ran over. It is the operator’s responsibility to forbid all extra riders at
all times. OPS-U- 0008
Never allow children to operate, ride on, or come close to the Tractor or
Implement. Usually, 16-17 year-old children who are mature and
responsible can operate the implement with adult supervision, if they
have read and understand the Operator’s Manuals, been trained in
proper operation of the tractor and Implement, and are physically large
enough to reach and operate the controls easily. (SG-11)
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Operation Section 4-7
OPERATION
Never operate the Tractor and Mower if the Implement input driveline is directly connected
to the Tractor transmission. Tractor braking distances can be substantially increased by
the momentum of the rotating Mower blades driving the Tractor transmission even though
the Tractor clutch has been disengaged. Install an over running clutch between the Tractor
PTO and the Mower driveline to prevent this potentially dangerous situation. (S3PT-16)
OPERATION
Never allow children or other persons to ride on the Tractor or Implement.
Falling off can result in serious injury or death. (SG-10)
OPERATION
4.2 Dismounting the Tractor
Before dismounting, park the tractor and implement on a reasonably level surface, apply the parking brake,
idle the engine down, disengage the PTO, and lower the implement to the ground. Shut down the tractor
engine according to the operator’s manual, remove the key, and wait for all motion to completely stop. Never
leave the seat until the tractor, its engine and all moving parts have come to a complete stop.
Use hand rails and steps when exiting the tractor. Be careful of your step and use extra caution when mud,
ice, snow or other matter has accumulated on the steps or hand rails. Use all handrails and steps for support
and never rush or jump off the tractor. OPS-U- 0009
5. STARTING THE TRACTOR
The operator must have a complete understanding of the placement, function, and operational use of all
tractor controls before starting the tractor. Review the tractor operator’s manual and consult an authorized
dealer for tractor operation instructions if needed.
Essential Tractor Controls:
• Locate the light control switch.
• Locate the engine shut off control.
• Locate the brake pedals and the clutch.
• Locate the PTO control.
• Locate the 3-point hitch control lever.
• Locate the hydraulic remote control levers.
Before starting the tractor ensure the following:
• Conduct all pre-start operation inspection and service according to the tractor operator’s manual.
• Make sure all guards, shields, and other safety devices are securely in place.
• The parking brake is on.
• The PTO control lever is disengaged.
• The 3-point hitch control lever is in the lowered position.
• The hydraulic remote control levers are in the neutral position.
• The tractor transmission levers are in park or neutral.
Refer to the tractor owner’s manual for tractor starting procedures. Only start the tractor while seated and
belted in the tractor operator’s seat. Never bypass the ignition switch by short circuiting the starter solenoid.
After the tractor engine is running, avoid accidental contact with the tractor transmission to prevent sudden
and unexpected tractor movement. OPS-U-0028
Never run the Tractor engine in a closed building or without adequate ventilation. The
exhaust fumes can be hazardous to your health. (SG-23)
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Operation Section 4-8
OPERATION
Start tractor only when properly seated in the Tractor seat. Starting a
tractor in gear can result in injury or death. Read the Tractor operators
manual for proper starting instructions. (SG-13)
Use extreme caution when connecting the mower to the tractor. The mower should be securely resting at
ground level or setting on blocks. Keep hands and feet from under the mower deck and clear of pinch points
between the tractor hitch arms and mower pins. OPS-R-0001
Always shut the Tractor completely down, place the transmission in park, and set the
parking brake before you or anyone else attempts to connect or disconnect the Implement
and Tractor hitches. (S3PT-15)
6.1 Connecting the Mower
The machine can be adapted to tractors with various gauges by placing the two hoist arms as shown in fig. 9,
so that height A is about 10 cm (4 inches) when the machine is in the work position (see 7.1):
The hoist pins of the machine with 4-5 disks (fig.2) are different from those of the machine with 6-7 disks (fig.
7).
The pins for the machine with 4-5 disks are suitable for 1st and 2nd class couplings (22mm/0.86 inches and
28mm/1.1 inches) whereas the pins for the machine with 6-7 disks can be used only with a 2nd class coupling.
In order to obtain the various positions shown in fig. 9 proceed as follows:
a. with 4-5 disks turn the pin that is not holding the safety hook in place correctly upside down and remove or
insert adjuster bush 5 into the other pin.
b. with 6-7 disks turn the pins upside down in the respective slots and fasten into position with screws 6 and 9
(fig. 7) in one of the adjustment holes on the lateral projecting part of the pin.
The third point has to be adjusted so that axle E in fig. 14 is vertical.
1. Start up the hydraulic hoist and raise the drawbar slightly.
2. Adjust and stabilize the lower hoist arms of the tractor on each side.
3. If necessary, move the vertical movement adjuster tie rod on the hoist arms until both ball-and-socket joints
are at the same height above ground.
4. Use peg 3 to fasten the rest feet (fig. 10) in position 1.
5. Connect hoist chain 2 figure 14 to the tractor for the time being.
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Operation Section 4-9
OPERATION
6. CONNECTING THE MOWER TO THE TRACTOR
OPERATION
OPERATION
Reference: picture 8
Settle chain 6 in order to block the frame’s swinging, when the tractor lifts the disc mower. Insert last ring 7 in
the relevant hitch of bar 1 and block it with screw 12 and the specially provided nut. At this point insert a chain’s
ring in slot 14 of hole 13 (this last one is settled in the 3 point hitch). The choice of the ring, that has to be
inserted in the slot, depends on the kind of tractor. This choice must assure a certain safety distance from the
ground, during the transport.
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Operation Section 4-10
OPERATION
OPERATION
6.2 How to adapt the cardan shaft
In order to make sure that the cardan shaft is the
right length compared with the tractor power takeoff
(with the machine already attached to the tractor),
proceed as follows:
1. Remove the two cardan joint axle shafts and
insert them separately on the 2 power takeoffs
with the clutch on the side of the mowing
machine.
2. Place the two axle shafts one alongside the
other (fig. 11).
3. Check that when the cardan shaft is stretched
to its minimum length (repeatedly raise and
lower the machine to find this position), the
tubes do not touch the bottom, so that there is
always a minimum clearance of 20 mm (0.79
inches).
4. If necessary, reduce the two axle shafts as well
as the two axle shaft protections by the same
amount
(keeping
the
above-mentioned
conditions), and take care to clean and lubricate
them before starting work.
5. When the cardan shaft is stretched to its
maximum length (with the safety device
released), the cardan tubes must remain
inserted at least 10 cm (4 inches).
6. Use the relevant chains to fasten the outer
cardan shaft protection.
DHM7 05/19
© 2019 Alamo Group Inc.
Operation Section 4-11
OPERATION
6.3 Road Use
Strictly comply with the road traffic regulations in
your country.
OPERATION
In order to put the machine in the transport position
when the machine is on the ground and is
connected to the tractor, proceed as follows:
1. Open the front pivoting protection (canvas
support).
2. Use the tractor hoist to raise the machine off the
ground.
3. Lift the disk carrier bar vertically along the
cylinder run until pin 2 entirely enters the slot on
hook 1 (fig. 12 item A).
4. Pull out the cylinder shaft slightly until it is well
fastened.
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© 2019 Alamo Group Inc.
Operation Section 4-12
OPERATION
7. Adjustments and Set-up
7.1 Belt Tension
Belt tension must be checked regularly particularly during the first few hours of use. In order to adjust tension
proceed as follows (fig. 13):
The belts must be loosened at the end of the season.
7.2 Cutting Height
The cutting height can be adjusted by using turnbuckle 1 on the third tractor point to vary the tilt of the knives
compared to the ground (distance F in fig. 14).
Cutting height may vary within the range of 16/60 mm (0.63/2.36 inches) even thought uneven land may
influence these values.
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© 2019 Alamo Group Inc.
Operation Section 4-13
OPERATION
1. Loosen the nuts 1.
2. Move the pulley and use nuts 1 to increase belt tension until distance C (visible through opening 2 as
shown in fig. 13) is about 20 mm (0.8 inches) when pressure is applied to the central line.
3. Tighten the nuts 1 in order to fasten the pulley hub and finally check that tension is correct.
If a belt has to be replaced, all belts should be replaced at the same time.
OPERATION
8. Use
8.1 Work Position
To move from the transport position to the work position, proceed as follows:
OPERATION
NOTE: Make sure that no person or object is standing within the turnover range of the disk carrier bar.
1. Send the cylinder shaft backwards slightly but keep rope 3 stretched until pin 2 (fig. 12 item B) is
unhooked.
2. Take out the cylinder shaft until the disk carrier bar is horizontal.
3. Use the tractor hoist to lower the machine; fasten adjustment chain 2 (fig. 14) above the ground so that
distance H is about 50 cm (19.7 inches).
NOTE: Make sure that adjustment chain 2 (fig. 14) is always well stretched when machine is working to
prevent pin 2 from damage.
Lower the protection plate and check that the cardan shaft is inserted into the machine power takeoff.
8.2 Mowing
1. Before starting to mow, place the machine on the ground so that the disk carrier bar is horizontal.
2. Before starting the machine, make sure that the knives are well sharpened, particularly if the grass is thin,
dry or sparse.
3. Switch on power takeoff rotation and gradually accelerate.
Machine input rotation speed must be about 540 revs/minute.
If the bar is working for long period on sloping ground, we advise holding it in a horizontal position for a few
minutes every half hour of work.
NOTE: Make sure there no persons nearby, particularly behind the disk carrier bar discharge area. Always
check before you start mowing that the protection plate is lowered all the way round the machine.
9. PRE-OPERATION INSPECTION AND SERVICE
Before each use, a pre-operation inspection and service of the implement and tractor must be performed.
This includes routine maintenance and scheduled lubrication, inspecting that all safety devices are equipped
and functional, and performing needed repairs. DO NOT operate the unit if the pre-operation inspection
reveals any condition affecting safe operation. Perform repairs and replacement of damaged and missing
parts as soon as noticed. By performing a thorough pre-operation inspection and service, valuable down time
and repair cost can be avoided. OPS-U-0029
Always disconnect the main PTO Driveline from the Tractor before performing service on
the Implement. Never work on the Implement with the tractor PTO driveline connected and
running. Rotating Parts, Blades or Drivelines could turn without warning and cause immediate entanglement, injury or death. (S3PT-11)
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© 2019 Alamo Group Inc.
Operation Section 4-14
OPERATION
Never work under the Implement, the framework, or any lifted
component unless the Implement is securely supported or blocked up
to prevent sudden or inadvertent falling which could cause serious
injury or even death. (SG-14)
9.1 Tractor Pre-Operation Inspection/Service
Refer to the tractor operator’s manual to ensure a
complete pre-operation inspection and scheduled
service
is
performed
according
to
the
manufacturers recommendations. The following
are some of the items that require daily service and
inspection:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Tire condition/air pressure
Wheel lug bolts
Steering linkage
PTO shield
SMV sign is clean and visible
Tractor’s lights are clean and functional
Tractor Seat belt is in good condition
Tractor ROPS is in good condition
ROPS is in the raised position
No tractor oil leaks
Radiator free of debris
Engine oil level and condition
Engine coolant level and condition
Power brake fluid level
Power steering fluid level
Fuel condition and level
Sufficient lubrication at all lube points
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Operation Section 4-15
OPERATION
Periodically inspect all moving parts for wear and replace when
necessary with authorized service parts. Look for loose fasteners, worn
or broken parts, and leaky or loose fittings. Make sure all pins have
cotter pins and washers. Serious injury may occur from not maintaining
this machine in good working order. (SG-21)
OPERATION
9.2 Mower Pre-Operation Inspection/Service
OPERATION
Before each mower use, a complete inspection and service is required to ensure the mower is in a good and
safe working condition. Damaged and/or broken parts should be repaired and/or replaced immediately. To
ensure the mower is ready for operation, conduct the following. OPS-R-0007
The operator’s manual and safety signs affixed on
the unit contain important instructions on the safe
and proper use of the equipment. Maintain these
important safety features on the implement in good
condition to ensure the information is available to
the operator at all times.
•
•
•
•
•
•
•
Ensure the manual canister is secured to the
equipment with the operator’s manual inside.
Ensure all safety signs are in place and legible.
Replace missing, damaged, and illegible
decals. OPS-U- 0011
Perform scheduled lubrication as detailed in
the maintenance section.
Ensure all decals are in place and legible.
Ensure the driveline is securely attached to
tractor. Make sure the driveline yoke locking
collar is securely seated in the grooves of the
PTO shaft by pushing and pulling the yoke
several times.
Lift Type-Inspect that the 3-point hitch pins are
the proper size, correctly installed, and secured
to the tractor lift arms with retaining pins
inserted.
Pull Type-Inspect that the hitch pin is the
correct size. OPS-R-0008_E
All Safety Shields, Guards and Safety devices including (but not limited to) - the Deflectors, Chain Guards, Steel Guards, Gearbox
Shields, PTO integral shields, and Retractable Door Shields should
be used and maintained in good working condition. All safety
devices should be inspected carefully at least daily for missing or
broken components. Missing, broken, or worn items must be
replaced at once to reduce the possibility of injury or death from
thrown objects, entanglement, or blade contact. (SGM-3)
DHM7 05/19
© 2019 Alamo Group Inc.
Operation Section 4-16
OPERATION
•
•
•
Inspect blades and blade bolts for looseness
and excessive wear. Make sure the mower is
securely blocked up before crawling beneath.
Replace damaged, worn and missing blades as
complete sets to maintain rotary balance during
operation.
Ensure carrier hub nut is tightened with the cotter pin inserted and spread. OPS-R-0041_A
9.3 Cutting Component Inspection
Inspect blades for the following:
Notches and Gouges:
Cause: Blade contacting foreign objects.
Remedy: Inspect the area to be mowed and remove foreign objects that could cause damage to the blades.
Excessive Blade Wear:
Cause: Mower height set too low.
Remedy: Replace blades more often.
Adjust mower height for mowing conditions to eliminate blade-to-ground contact.
Operating the mower with loose blade hardware will damage the blades and can result in
blade breakage or blade fastener failure. Broken blades or bolts can be thrown out from
under the mower for distances up to 300 feet. When the blades are replaced, the fastening
hardware must be replaced. Check and retighten the blade hardware after the first eight
hours of operation.
DHM7 05/19
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Operation Section 4-17
OPERATION
•
Inspect the gearbox oil level. A low oil level is a
warning sign that the gearbox may be cracked
or its seal is damaged and needs replacement.
Ensure the gearbox vent is in place and free
from clogs. OPS-R-0040
OPERATION
Inspect the Blades daily for abnormal wear. REPLACE BLADES IMMEDIATELY if blade has:
•
•
•
•
OPERATION
•
Become bent or deformed from it’s original shape or
Any cracks are visible, or
Deep gouges in the blade’s surface are present, or
Gouges or chipped areas in the cutting edge are
larger than 1/4” (6.35 mm), or
The material on the leading edge has been worn away
by more than 1/4” (6.35 mm)”
Failure to replace abnormally worn blades may lead
to catastrophic failure of the blades and ejection of
the broken part with tremendous force which may
cause serious bodily injury or death.
DHM7 05/19
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Operation Section 4-18
OPERATION
Disc Mower PRE-OPERATION Inspection
Mower ID#________________
Date:
________________
IMPORTANT:
Scan
this QR Code for an
electronic copy of this
inspection sheet.
Condition at
Start of Shift
Item
Specific Comments if
not O.K.
The Operator’s Manual is in the canister on the mower
All safety decals are in place and legible
The hitch connection bolts & pins are tight
There are no cracks in hitch
The tow chain is secured to the tractor & mower
The hydraulic cylinders pins are tight
There are no leaking or damaged hoses
The mower frame is clear of cut grass and debris
Canvas cover is in place & in good condition
Driveline shields are in good condition
Driveline clutches are in good condition; not frozen
Driveline telescoping members & U-joints are lubricated
Driveline yokes are securely attached to PTO & mower
Blades are not chipped, cracked or bent
Blade bolts are tight
Transport lock is in good condition
Operator’s Signature:
DO NOT OPERATE an UNSAFE TRACTOR or MOWER
DHM7 05/19
© 2019 Alamo Group Inc.
Operation Section 4-19
OPERATION
Before conducting the inspection, make sure the tractor engine is off, all
rotation has stopped and the tractor is in park with the parking brake
engaged. Make sure the mower is resting on the ground or securely blocked
up and all hydraulic pressure has been relieved.
OPERATION
Tractor PRE-OPERATION Inspection
Tractor ID#:________________________Make:________________________
OPERATION
Date:______________________________Shift:________________________
Before conducting the inspection, make sure the tractor engine is off, all
rotation has stopped and the tractor is in park with the parking brake
engaged. Make sure the implement is resting on the ground or securely
blocked up and all hydraulic pressure has been relieved.
Condition at
Start of Shift
Item
Specific Comments if
not O.K.
The flashing lights function properly
The SMV Sign is clean and visible
The tires are in good condition with proper pressure
The wheel lug bolts are tight
The tractor brakes are in good condition
The steering linkage is in good condition
There are no visible oil leaks
The hydraulic controls function properly
The ROPS or ROPS Cab is in good condition
The seatbelt is in place and in good condition
The 3-point hitch is in good condition
The drawbar pins are securely in place
The PTO master shield is in place
The engine oil level is full
The brake fluid level is full
The power steering fluid level is full
The fuel level is adequate
The engine coolant fluid level is full
The radiator is free of debris
The air filter is in good condition
Operator’s Signature:___________________________________________________
DO NOT OPERATE an UNSAFE TRACTOR or IMPLEMENT
DHM7 05/19
© 2019 Alamo Group Inc.
Operation Section 4-20
OPERATION
10. DRIVING THE TRACTOR AND IMPLEMENT
Safe tractor transport requires the operator possess a thorough knowledge of the model being operated and
precautions to take while driving with an attached implement. Ensure the tractor has the capacity to handle the
weight of the implement and the tractor operating controls are set for safe transport. To ensure safety while
driving the tractor with an attached implement, review the following. OPS-U- 0012
Never run the Tractor engine in a closed building or without adequate ventilation. The
exhaust fumes can be hazardous to your health. (SG-23)
Before transporting the Tractor and Implement, determine the proper transport speeds for
you and the equipment. Make sure you abide by the following rules:
Test the tractor at a slow speed and increase the speed slowly. Apply the Brakes smoothly
to determine the stopping characteristics of the Tractor and Implement. As you increase
the speed of the Tractor the stopping distance increases.
Determine the maximum
transport speed not to exceed 20 mph (30 kph) for transporting this equipment.
Test the equipment at a slow speed in turns. Increase the speed through the turn only after
you determine that the equipment can be operated at a higher speed. Use extreme care
and reduce your speed when turning sharply to prevent the tractor and implement from
turning over. Determine the maximum turning speed for you and this equipment before
operating on roads or uneven ground.
Only transport the Tractor and Implement at the speeds which allow you to properly control
the equipment.
Be aware of the operating conditions. Do not operate the Tractor with weak or faulty brakes
or worn tires. When operating down a hill or on wet or rain slick roads, the braking distance
increases: use extreme care and reduce your speed. When operating in traffic always use
the Tractor’s flashing warning lights and reduce your speed. Be aware of traffic around you
and watch out for the other guy. (SG-19)
DHM7 05/19
© 2019 Alamo Group Inc.
Operation Section 4-21
OPERATION
Transport only at speeds where you can maintain control of the
equipment. Serious accidents and injuries can result from operating this
equipment at high speeds. Understand the Tractor and Implement and
how it handles before transporting on streets and highways. Make sure the Tractor steering
and brakes are in good condition and operate properly.
OPERATION
10.1 Starting the Tractor
OPERATION
The procedure to start the tractor is model specific.
Refer to the tractor operator’s manual for starting
procedures for your particular tractor. Consult an
authorized dealer if the starting procedure is
unclear. Ensure the 3-point control lever is in the
lowered position and the PTO is disengaged before
starting the tractor. OPS-U-0033
10.2 Brake and Differential Lock Setting
Make sure the tractor brakes are in good operating
condition. Tractor brakes can be set to operate
independently allowing single rear wheel braking
action or locked together to provide simultaneous
rear wheel braking. FOR MOST DRIVING AND
OPERATING CONDITIONS, THE BRAKE PEDALS
SHOULD BE LOCKED TOGETHER TO PROVIDE
THE MOST EFFECTIVE BRAKING ACTION.
Always disengage the tractor differential lock when
turning. When engaged the differential lock will
prevent or limit the tractor from turning. During
normal cutting conditions, locking the differential
provides no benefit and should not be used. OPSU- 0013
Be aware of the operating conditions. Do not operate the Tractor with weak or faulty brakes.
When operating down a hill or on wet or rain slick roads, the braking distance increases; use
extreme care and reduce your speed in these conditions. When operating in traffic, always
use the Tractor’s flashing warning lights and reduce your speed. Be aware of traffic around
you and watch out for the other guy.
DHM7 05/19
© 2019 Alamo Group Inc.
Operation Section 4-22
OPERATION
10.3 Driving the Tractor and Mower
Start off driving at a slow speed and gradually increase your speed while maintaining complete control of the
tractor and mower. Moving slowly at first will also prevent the tractor from rearing up and loss of steering
control. The tractor should never be operated at speeds that cannot be safely handled or which will prevent
the operator from stopping quickly during an emergency. If the power steering or engine ceases operating,
stop the tractor immediately as the tractor will be difficult to control.
To avoid overturns, drive the tractor with care and at safe speeds, especially when operating over rough
ground, crossing ditches or slopes, and turning corners. Tractor wheel tread spacing should be increased
when working on inclines or rough ground to reduce the possibility of tipping.
Use extreme caution when operating on steep slopes. Keep the tractor in a low gear when going downhill. DO
NOT coast or free-wheel downhill. OPS-R-0019_B
10.4 Crossing Ditches and Steep Inclines
When crossing ditches with steep banks or going up
sharp inclines, it is possible that the main driveline
inner profile will penetrate into the outer housing to its
maximum depth until the assembly becomes solid
(driveline is at its extreme shortest length). This type
of abusive operation can cause serious damage to
the tractor and mower drive by pushing the PTO into
the tractor and through the support bearings or
downward onto the PTO shaft, breaking it off.
Damage resulting from over-collapse of the driveline’s inner profile and its outer housing
may allow the driveline to come loose from the Tractor which could cause bodily injury to the
operator or bystanders and/or extensive damage to the Tractor or Implement. OPS-R-0020
DHM7 05/19
© 2019 Alamo Group Inc.
Operation Section 4-23
OPERATION
Perform turns with the tractor and mower at slow speeds to determine how the tractor with an attached mower
handles a turn. Determine the safe speed to maintain proper control of the tractor when making turns. When
turning with a towed implement, the overall working length of the unit is increased. Allow additional clearance
for the mower when turning.
OPERATION
OPERATION
When confronted with an incline or ditch, do not
approach from an angle which is perpendicular or
straight on as damage to or over-collapse of the
driveline may occur. OPS-R-0021_A
Inclines and ditches should be approached along a
line which is at an angle as shown. This type of
path will reduce the possibility of over-collapse of
the driveline and resulting damage. If the gradient
is so steep that such an approach increases the
possibility of a tractor roll-over, select an alternate
crossing path.
When operating the tractor and mower across
slopes and inclines, through ditches, and other
uneven terrain conditions, it is important to maintain
sufficient deck to ground clearance. Blade contact
with the ground may cause soil, rocks and other
debris to be thrown out from under the mower
resulting in possible injury and/or property damage.
Ground contact also produces a severe shock load
on the mower drive and to the mower blades
resulting in possible damage and premature wear.
OPS-R-0022
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© 2019 Alamo Group Inc.
Operation Section 4-24
OPERATION
11. OPERATING THE TRACTOR AND IMPLEMENT
THE OPERATOR MUST COMPLETELY UNDERSTAND HOW TO OPERATE THE TRACTOR AND
IMPLEMENT AND ALL CONTROLS BEFORE ATTEMPTING TO OPERATE. The operator must read and
understand the Safety and Operation Sections of the implement and tractor operator’s manuals. These
manuals must be read and explained to any operator who cannot read. Never allow someone to operate the
implement and tractor without complete operating instructions.
Extreme care should be taken when operating near loose objects such
as gravel, rocks, wire, and other debris. Inspect the area before
mowing. Foreign objects should be removed from the site to prevent
machine damage and/or bodily injury or even death. Any objects that
cannot be removed must be clearly marked and carefully avoided by the
operator. Stop mowing immediately if blades strike a foreign object.
Repair all damage and make certain rotor or blade carrier is balanced
before resuming mowing. (SGM-05)
Many varied objects, such as wire, cable, rope, or chains, can become entangled in the
operating parts of the mower head. These items could then swing outside the housing at
greater velocities than the blades. Such a situation is extremely hazardous and could result
in serious injury or even death. Inspect the cutting area for such objects before mowing.
Remove any like object from the site. Never allow the cutting blades to contact such items.
(SGM-06)
DHM7 05/19
© 2019 Alamo Group Inc.
Operation Section 4-25
OPERATION
Before starting any operation, the operator must become familiar with the area to be worked in and any
obstacles and hazards contained within to ensure safety to the operator, bystanders, and equipment. Special
attention should be paid to foreign debris, rough terrain, steep slopes, and passersby and animals in the area.
OPS-U- 0015
OPERATION
11.1 Foreign Debris Hazards
OPERATION
Before mowing, inspect the area to make sure
there are no foreign objects that the mower blades
could hit or become entangled with. Remove all
foreign objects and debris. If objects are too big to
remove, mark them clearly and be sure to prevent
the mower blades from contacting them.
If you hit a solid object or foreign debris, stop the
mower and tractor at once. Immediately idle the
engine speed and disengage the PTO. Wait for all
mower rotating motion to stop, then raise the
mower and move the tractor and implement off the
object. Inspect the area and remove, or mark the
location of the debris. Inspect the condition of the
mower and make any needed repairs immediately.
Make sure the blades are not damaged and the
carrier is balanced before resuming operation.
Remove Foreign Material
Always wear your seat belt securely fastened and
only operate the tractor and mower with the ROPS
in the raised position. If the tractor or mower hits a
tree stump, rock, or bump, a sudden movement
could throw you off of the seat and under the
tractor and/or mower. The seat belt is your best
protection from falling off the tractor and the ROPS
provides protection from being crushed during a
tractor roll-over. OPS-R-0023
Raise Mower over solid objects
11.2 Bystanders/Passersby Precautions
If a bystander comes within 300 feet of the tractor while the mower is being operated, stop the tractor at once,
idle the engine and disengage the PTO. Do not engage the PTO again until all bystanders are well past the
300 foot distance. OPS-R-0024
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© 2019 Alamo Group Inc.
Operation Section 4-26
OPERATION
Rotary Mowers are capable under adverse conditions of throwing
objects for great distances (300 ft (100 m) or more) and causing serious
injury or death. Follow safety messages carefully.
STOP MOWING IF PASSERSBY ARE WITHIN 300 Feet (100 m) UNLESS:
-Front and Rear Deflectors, Chain Guards, or Bands are installed and in good, workable
condition;
-Mower sections or Wings are running close to and parallel to the ground without exposed
Blades;
-All areas have been thoroughly inspected and all foreign material such as rocks, cans,
glass, and general debris has been removed.
NOTE: Where there are grass and weeds high enough to hide debris that could be struck
by the blades, the area should be: inspected and large debris removed, mowed at an
intermediate height, inspected, closely with any remaining debris being removed, and
mowed again at desired final height. (This will also reduce power required to mow, reduce
wear and tear on the Mower drivetrain, spread cut material better, reduce streaking, and
make the final cut more uniform). (SRM-01)
11.3 Engaging the Power Take Off (PTO)
Before engaging the PTO, make certain that the area is clear of bystanders and passersby. The implement
must be completely lowered and the deck positioned at a safe operating height. NEVER engage the PTO with
the implement in the raised position.
Set the tractor engine speed at approximately 1,000 RPM before engaging the PTO. Shift the PTO control to
the on position, and slowly increase the engine speed until the PTO is operating at the rated speed. If you
hear unusual noises or see or feel abnormal vibrations, disengage the PTO immediately. Inspect the
implement to determine the cause of the noise or vibration and repair the abnormality. OPS-U- 0027
Do not let the Blades turn when the Mower Deck is raised for any
reason, including clearance or for turning. Raising the Mower deck
exposes the Cutting Blades which creates a potentially serious hazard
and could cause serious injury or even death from objects thrown from
the Blades. (SRM-07)
Do not put hands or feet under mower decks. Blade Contact can result
in serious injury or even death. Stay away until all motion has stopped
and the decks are securely blocked up. (SGM-09)
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Operation Section 4-27
OPERATION
-Passersby are outside the existing thrown-object zone;
OPERATION
11.4 PTO RPM and Ground Speed
OPERATION
Ground speed for mowing will depend upon the height, type, and density of vegetation to be cut.
Recommended speed for efficient mower performance is between 2 and 5 mph(3-8 kph). Operate the mower
at its full rated PTO speed to maintain blade speed for a clean cut. Refer to the tractor operator’s manual or
the tractor instrument panel for the engine speed and gear to provide the required PTO and desired ground
speed. Make sure that the mower is operating at its full rated speed before entering the vegetation to be cut.
If it becomes necessary to temporarily regulate engine speed, increase or decrease the throttle gradually.
Ground speed is achieved by transmission gear selection and not by the engine operating speed. The
operator may be required to experiment with several gear range combinations to determine the best gear and
range which provides the most ideal performance from the mower and most efficient tractor operation. As the
severity of cutting conditions increase, the ground speed should be decreased by selecting a lower gear to
maintain the proper operating PTO speed. OPS-R-0025
Do not exceed the rated PTO speed for the Implement. Excessive PTO speeds can cause
Implement driveline or blade failures resulting in serious injury or death. (SG-26)
Mow at the speed that you can safely operate and control the tractor and mower. The
correct mowing speed depends on terrain condition and grass type, density, and height of
cut. Normal ground speed range is from 2 to 5 mph(3-8 kph). Use slow mowing speeds
when operating on or near steep slopes, ditches, drop-offs, overhead obstructions, power
lines, or when debris and foreign objects are to be avoided. (SGM-07)
11.5 Operating the Mower
Only operate the mower from the tractor operator’s seat with the seatbelt securely fastened. The tractor must
be equipped with a ROPS in the raised position or a ROPS cab.
The mower is designed to cut vegetation up to 1” in diameter. Sharp blades will produce a cleaner cut and
require less power. Travel at a speed that allows the mower sufficient time to cut through the vegetation and
maintain the PTO operating speed to prevent overloading the mower and tractor. Choose a driving pattern that
provides the maximum pass length and minimizes turning.
Under certain conditions, tractor tires may roll some grasses down preventing them from being cut at the same
height as the surrounding area. When this occurs, reduce the tractor ground speed while maintaining the
operating speed of the mower. A slower ground speed will permit grasses to at least partially rebound and be
cut.
Before operating the mower place the mower on the ground so that the disc carrier bar is horizontal. Also make
sure that the knives are well sharpened, especially if the grass is thin, dry or sparse. Switch on the power take
off rotation and gradually accelerate.
Mower input rotation speed must be about 540revs/minute. If the bar is working for long periods on sloping
ground, it is recommended to hold the mower in the horizontal position for a few minutes every half hour of
work.
DHM7 05/19
© 2019 Alamo Group Inc.
Operation Section 4-28
OPERATION
Make sure the protective cover is securely in place all around the mower bar hazard.
The protective cover avoids throwing out of plant
residues and foreign objects.
Before putting the mower bar into the forage,
connect the tractor power takeoff and accelerate
gradually up to 540 RPM. The forward speed must
be adapted to the working conditions.
The lift hydraulic cylinder is designed to maneuver
the mower from the ground while the mower bar is
raised. To perform this, actuate the hydraulic
cylinder until the locking hook “A” of the cylinder
reaches the end of the stroke.
When the machine’s hydraulic cylinder is actuated during working position, the lifting brace
“D” (Ops-2419) must be in its socket, otherwise damaging may occur.
Never mow on stony or rocky soils.
While working the protective cover must always be in place with the front part of the
protection lowered. Never lean on climb on the protective cover.
DHM7 05/19
© 2019 Alamo Group Inc.
Operation Section 4-29
OPERATION
When working, the hydraulic cylinder must always
be in the floating position to allow good adaptability
to the unevenness of the ground. For lifting
operations at the head of the field (Ops-2416), the
mower bar maneuver is done with the machine’s
hydraulic cylinder.
OPERATION
11.6 Shutting Down the Implement
OPERATION
To shut down attached mower head, first bring the
tractor to a complete stop. Decrease engine RPM
to idle then disengage cutterhead. The mower head
will come to a complete stop within a suitable
amount of time. Do not engage or disengage the
cutterheads at a high RPM unless there is an
emergency situation.
Park the tractor on a level surface, place the
transmission in park or neutral and apply the
parking brake, lower the attached implement to the
ground, shut down the engine, remove the key, and
wait for all motion to come to a complete stop
before exiting the tractor. OPS-U- 0016
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Operation Section 4-30
OPERATION
12. DISCONNECTING THE MOWER FROM THE TRACTOR
During operations when disconnecting the machine, be careful not to lower the mower bar
below the horizontal line.
Always disconnect the machine with the mower bar in the horizontal position.
Always shut the Tractor completely down, place the transmission in park, and set the
parking brake before you or anyone else attempts to connect or disconnect the Implement
and Tractor hitches. (S3PT-15)
Never unhitch without using the Tongue Jack. The Tongue is very heavy. Attempting to lift
the Tongue without using the Tongue Jack could cause strains or other injury. Allowing the
tongue to fall suddenly and unexpectedly could result in crushing injury. Use the Tongue
Jack for lifting the Implement only. Overloading the Tongue Jack can cause failure with
possible serious bodily injury or even death. (STI-04)
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Operation Section 4-31
OPERATION
4. Using the hydraulic cylinder, lower the disc
mower bar into the horizontal position. Ops2414.
5. Unlock component A (Ops-2412) and turn it
over, downward against plate B on the drop box
(Ops-2413). Make sure the upper part of the
drop box is free of foreign objects.
6. Actuate the tractor hydraulic cylinder to lower
the machine to the ground.
7. Disconnect the third point and disconnect the
hydraulic hose.
8. Disconnect the drawbars and the driveshaft.
OPERATION
13. MOWER STORAGE
Properly preparing and storing the mower at the end of the season is critical to maintaining its appearance and
to help ensure years of dependable service. The following are suggested storage procedures:
OPERATION
•
Thoroughly clean all debris off the mower to
prevent damage from rotting grass and
standing water.
• Lubricate all mower grease points and fill
gearbox oil levels as detailed in the
maintenance section.
• Tighten all bolts and pins to the recommended
torque.
• Check the mower for worn and damaged
parts. Perform repairs and make replacements
immediately so that the mower will be ready
for use at the start of the next season.
• Store the mower in a clean, dry place with the
mower housing resting securely on blocks or
at ground level.
• Keep the driveline yoke from sitting in water,
dirt and other contaminants.
• Loosen the trapezoidal belts and check the
protection plate is lying flat.
Use spray touch-up enamel where necessary to
prevent rust and maintain the appearance of the
mower.
Never allow children or other persons to ride on the Tractor or Implement.
Falling off can result in serious injury or death. (SG-10)
14. TRANSPORTING THE TRACTOR AND IMPLEMENT
Inherent hazards of operating the tractor and implement and the possibility of accidents are not left behind
when you finish working in an area. Therefore, the operator must employ good judgement and safe operation
practices when transporting the tractor and implement between locations. By using good judgement and
following safe transport procedures, the possibility of accidents while moving between locations can be
substantially minimized. OPS-U- 0017
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Operation Section 4-32
OPERATION
14.1 Transporting the Mower
Make sure that no person or object is standing within the turnover range of the disk carrier
bar.
Before transporting the machine on public roads, the user must always make sure that it
complies with highway regulations.
3. Pull the cord of hook C to free the lifting brace
D. If the lifting brace D is not free in the socket,
lower the tractor’s hydraulic lift until the lifting
brace D is free and then pull the cord of hook C.
4. Raise the machine completely with the tractor
hydraulic lift.
5. Slowly raise the mower bar vertically actuating
the machine’s hydraulic cylinder. Release the
tension of the cord of hook C while raising the
mower bar vertically. This will hook
automatically with the locking hook C.
Pull the cord of hook C (Ops-2453) every time you want to raise the mower bar into the
vertical position. While raising it vertically, release the tension on the cord.
Secure transport lock before transporting mower, otherwise mower head lift cylinder may
leak down resulting in possible injury or death to bystanders.
The total transport height of the machine measured from the ground, must not exceed the
maximum height authorized by highway regulations.
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Operation Section 4-33
OPERATION
1. With the machine in the work position, detach
the tractor power takeoff and wait until all
moving components have come to a full stop.
2. Flip back the front deflector A.
OPERATION
OPERATION
Before transporting the tractor and mower, idle the
tractor engine, disengage the PTO and wait for all
mower moving parts to come to a complete stop.
Once all mower parts are completely stopped, raise
the mower to transport height. NOTE: When
raising the mower, maintain 1” clearance between
the driveline and mower deck. If additional mower
deck height is needed for safe transport, disconnect
the driveline from the tractor and secure its end to
the mower deck. The mower can then be raised to
the maximum lift height. OPS-R-0033_A
If the tractor’s hydraulic pump is not independent of
the tractor PTO, or if the tractor PTO has to be run
to have hydraulic power, disconnect the mower
driveline from the tractor PTO output shaft. Secure
the driveline to the mower deck to prevent driveline
damage or loss during transport. OPS-R-0034_B
Before transporting the tractor on a public roadway
or boarding a trailer for transport, the tractor brake
pedals should be locked together. Locking the
pedals ensures that both wheels brake
simultaneously while stopping, especially when
making an emergency stop.
Use extreme caution and avoid hard applications of
the tractor brakes when towing heavy loads at road
speeds. Never tow the implement at speeds
greater than 20 MPH (32 kph). OPS-U- 0018
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Operation Section 4-34
OPERATION
14.2 Transporting on Public Roadways
Extreme caution should be used when transporting the tractor and implement on public roadways. The tractor
must be equipped with all required safety warning features including a SMV emblem and flashing warning
lights to alert drivers of the tractor’s presence. Remember that roadways are primarily designed for
automotive drivers and most drivers will not be looking out for you, therefore, you must look out for them.
Check your side view mirrors frequently and remember that vehicles will approach quickly because of the
tractor’s slower speed. Be extremely cautious when the piece of equipment that you are towing is wider than
the tractor tire width and/or extends beyond your lane of the road.
Make certain that the “Slow Moving Vehicle” (SMV) sign is installed in
such a way as to be clearly visible and legible. When transporting the
Equipment use the Tractor flashing warning lights and follow all local
traffic regulations. (SG-6)
The SMV (Slow-Moving Vehicle) emblem is
universal symbol used to alert drivers of the
presence of equipment traveling on roadways at a
slow speed. SMV signs are a triangular bright
orange with reflective red trim for both easy day
and night visibility. Make sure the SMV sign is
clean and visible from the rear of the unit before
transporting the tractor and implement on a public
roadway. Replace the SMV emblem if faded,
damaged, or no longer reflective. OPS-U- 0020
Make sure that all tractor flashing warning lights,
headlights, and brake/tail lights are functioning
properly before proceeding onto public roads. While
newer model tractors have plenty of lighting to
provide warning signals and operating lighting, most
older models are only equipped with operating lights.
Consult an authorized tractor dealer for lighting kits
and modifications available to upgrade the lighting on
older tractor models. OPS-U- 0021
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Operation Section 4-35
OPERATION
Make sure that a proper size safety tow chain is secured between the tractor and implement before entering a
public road. OPS-U- 0019
OPERATION
OPERATION
When operating on public roads, have
consideration for other road users. Pull to the side
of the road occasionally to allow all following traffic
to pass. Do not exceed the legal speed limit set in
your country for agricultural tractors. Always stay
alert when transporting the tractor and implement
on public roads. Use caution and reduce speed if
other vehicles or pedestrians are in the area. OPSU- 0022
Reduce speed before turning or applying the brakes.
Ensure that both brake pedals are locked together
when operating on public roads. OPS-U- 0023
14.3 Hauling the Tractor and Implement
Before transporting a loaded tractor and implement,
measure the height and width dimensions and gross
weight of the complete loaded unit. Ensure that the
load will be in compliance with the legal limits set for
the areas that will be traveled through. OPS-U- 0024
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Operation Section 4-36
OPERATION
Use adequately sized and rated trailers and
equipment to transport the tractor and implement.
Consult an authorized dealer to determine the proper
equipment required. Using adequately sized chains,
heavy duty straps, cables and/or binders, securely tie
down both the front and rear of the tractor utilizing the
proper tie down locations as specified by the tractor
manufacturer. OPS-U- 0025
While hauling the tractor and implement, make
occasional stops to check that the tractor and
implement have not moved or shifted and that the
securing chains have maintained tension. If during
transport a hard braking, sharp turning, or swerving
action was performed, stop at the next safe location
to inspect the security of the load. OPS-U- 0026
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Operation Section 4-37
OPERATION
Arrange the chains so that when tightened, the
chains are pulling downward and against
themselves. Carefully tighten the securing chains or
other fasteners using boomers or binders to apply
maximum tension. Use extreme care when attaching
and removing the securing devices as the extreme
tension involved when released has the potential to
inflict serious injury.
OPERATION
OPERATION
15. TROUBLESHOOTING GUIDE
Problem
Possible Cause
Remedy
The disk carrier bar vibrates
too much during work
1. The nylon bushings of the joints
in question are overworn or
completely worn out.
2. The pins and/or respective
bushings/bearings of the joints
in question are overworn.
3. The outer conveyor is too slack
1. Replace the bushings.
The disk carrier bar does not
adapt correctly to uneven
ground.
1. The height of the tractor coupling
plate is not adjusted correctly.
2. The machine joints resist free
rotation.
2. Replace the worn-out parts
and lubricate regularly.
3. Check that it is fastened correctly
and check the nylon bushings.
1. Readjust as specified in operations
section (in particular check that both
ball-and-socket joints are the same
height above ground.
2. Clean and lubricate the parts in
question.
The disk carrier bar is not
raised parallel to the ground
1. The entire machine is leaning
one side.
1. Check that both hoist ball-andsocket joints are at the same height
above ground; the transverse slant of
chain is not adjusted, correctly the
chain to the correct length and fasten
one of the circlips into slot.
Earth accumulates between
two sliding blocks in the front
part of the disk carrier bar
1. The ground is exceptionally wet;
the bar presses to hard on the
ground.
1. Use the tractor hoist to raise the
machine higher above the ground and
then readjust the chain giving minimum
height above ground.
2. Adjust the tilt of axle by moving
turnbuckle on the third point.
2. The disk carrier bar tilts too far
forward.
Safety device often unhooks
under impact.
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1. The rubber buffer is worn out or
is not adjusted correctly.
Operation Section 4-38
1. Check the condition of the rubber
buffer and if necessary, tighten the
relevant screw very carefully (danger of
unhooking when it receives blows that
are too strong for the machine
structure) until hooking occurs at
reasonable intervals only.
OPERATION
1. The disk carrier bar does not tilt
correctly.
1. Use turnbuckle 1 on the third point
to adjust the tilt.
The stubble is not the same
1. The disk carrier bar tilts too much.
2. The knives are over worn.
3. Power takeoff speed is
insufficient.
min.
4. Forward movement speed
is too fast.
1. Reduce the tilt of the disk carrier bar.
2. Replace the knives.
3. Increase power takeoff rotation
speed up to, but not over, 540 revs/
The forge is pushed forward
before being cut.
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1. The ventilating effect of the
knives is too strong.
Operation Section 4-39
4. Reduce tractor speed.
1. Reduce power takeoff rotation
speed and increase tractor forward
movement speed.
OPERATION
The stubble is too high or too
sparse.
MAINTENANCE SECTION
Maintenance Section 5-1
© 2019 Alamo Group Inc.
MAINTENANCE
MAINTENANCE
BEFORE PERFORMING INSPECTIONS, MAINTENANCE OR ADJUSTMENTS OF THE
MOWER, STOP THE TRACTOR ENGINE, REMOVE THE KEY, AND SECURE PARKING
BRAKE. WAIT FOR ALL ROTATING MOTION OF THE MOWER TO STOP AND
DISCONNECT THE DRIVELINE SHAFT. BLOCK THE MOWER AND TRACTOR TO
PREVENT MOVEMENT BEFORE PERFORMING ADJUSTMENTS OR MAINTENANCE.
AFTER MAINTENANCE OR ADJUSTMENTS ARE COMPLETED, REMOVE ALL BLOCKS
AND TOOLS USED IN MAINTENANCE OR ADJUSTMENTS. FAILURE TO CLEAR THE
AREA AROUND THE MOWER BEFORE OPERATION COULD RESULT IN OBJECTS
BEING THROWN TOWARD THE OPERATOR OR BYSTANDERS.
Disk and Blade Maintenance
For longer service file, carefully check discs, blades and bolts daily. More frequent checks will have to be made
if mowing has been on stoned ground and after impact with an obstacle. When replacements are necessary,
use only Bush Hog recommended parts. Use of parts not approved by Bush Hog could void the warranty.
Worn, bent or blunt blades will require more power. To cut efficiently, replace worn or
damaged blades as soon as possible. During operation, the blades will reach a speed of
3000 RPM. It is very important that the nut and bolt be in good condition and torqued to 236
ft./lbs.
A BENT BLADE CAN SERIOUSLY AFFECT THE OPERATION OF THE MACHINE AND
THROW MORE OBJECTS. REPLACE BENT BLADES AT ONCE! ALWAYS REPLACE
BLADES AND HARDWARE IN PAIRS TO MAINTAIN BALANCE.
How to Check the Mower Devices
1. The knives should be replaced when:
• The width of the knife at point B=1 cm (0.4
inches) from the edge of the disk is 3/4 of the
original width A.
• The oval shape of the hole is more than a
distance of C=2 mm (0.08 inches) of the size of
the original hole.
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Maintenance Section 5-2
MAINTENANCE
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Maintenance Section 5-3
MAINTENANCE
2. The clamp parts should be replaced when:
• The screw to fasten the knives is bent or too
worn out below the head.
• The self-tapping layer 1 of the screw to fasten
the knives is missing or too worn out. We
advise changing the screw after it has been
tightened 5 times.
• The clamp screw worn down where it olds the
knife to a distance of E, higher than or equal to
3 mm (0.12 inches)
• The height of the lock nut at any point
whatsoever is less than or equal to 1/2 of the
total nut height.
MAINTENANCE
Disc Replacement
Reinstalling Disc Assemblies:
ALWAYS REPLACE BLADES AND BLADE FASTENERS IN PAIRS TO MAINTAIN
BALANCE. VIBRATION MAY LEAD TO COMPONENT FAILURE.
MAINTENANCE
The oval disks are splined to a shaft and have to be
positioned so that the main axle is at right angles
with next to it. (Mnt-DM-0001)
The knives are fastened by means of a special selftapping screw and an M12 nut (Mnt-DM-0002). The
nut must be tightened with a 16kgm (116 ft/lbs.)
torque.
Cupped washer 1 (Mnt-DM-0003) must be mounted
with its concavity facing downwards. The selflocking nut 2 must be tightened with a torque
wrench set at 32 kgm (236 ft/lbs.) The six screws
must be tightened with a torque wrench set at 70-80
Nm (52 ft/lbs.) torque.
Pay attention to the direction of disk rotation. Worn
knives can be replace by carefully looking at (MntDM-0001). (A is the work moving direction). The
second blade (if in good condition) can be used by
putting it back turned up-side-down at the same
side of the disk.
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Maintenance Section 5-4
MAINTENANCE
LUBRICATION
Driveshaft and Mower
Change the oil in the disk carrier bar and gearbox
after the first 50 hours of use. After this first change,
we advise changing the oil every 100 working hours
or at least once a year.
The driveshaft should be greased regularly as
shown in Mnt-DM-0004.
• The U-joints, supports, hinges, and points
equipped with grease fittings should be
lubricated or greased frequently, at least every
20 working hours.
NOTE: When in use, check the oil levels everyday
and top off if necessary.
Gearbox
Use SAE EP 80 W 90 oil Check the level with the
special rod on the drain/Filler plug when the bar is
lying horizontally. Oil can be drained through the
hole in cap when the bar is vertical.
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Maintenance Section 5-5
MAINTENANCE
•
MAINTENANCE
Disk Carrier Bar
Use SAE EP 80 W 90 oil in quantities listed:
MAINTENANCE
Model DHM7........................... .66 Gallons
Oil is added and the oil level is checked when the
disk carrier bar is vertical (it MUST be in the vertical
position for at least 5 minutes). In order to fill with
oil, unscrew both caps, filler and level, and pour in
the amount shown or the amount needed to top to
the level through the hole in cap (tilt bar slightly if
necessary so it is easier to pour in oil) until the level
of filler cap is reached.
Check every 8 hours and keep
clean the area between A and
frame. Dust and dirt can
accumulate. Check that lever A
does not remain in the upright
position.
NOTE: Dispose of used oil properly.
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Maintenance Section 5-6
MAINTENANCE
STORAGE
To prepare your Disc Mower for storage:
NEVER DISCONNECT MOWER FROM TRACTOR WITHOUT CUTTER BAR IN
LOWERED TO (OPERATING) POSITION.
PROPER TORQUE CHART FOR FASTENERS
Because of the severe operating conditions, correct bolt torque is very important. An improperly torqued bolt
can be easily shaken loose or broken by the vibrations. When replacing bolts, always use the same grade of
bolt as used originally. Use this chart as a guide to tightening all bolts. Torque valves listed are for general use
only.
RECOMMENDED TORQUE IN FOOT POUNDS UNLESS OTHERWISE STATED IN THE MANUAL*
NOTE: These values apply to fasteners as received from supplier, dry or when lubricated with normal engine
oil. They do not apply if special graphited or molydisulphide greases or other extreme pressure lubricants are
used. This applies to both UNF fine and UNC coarse threads.
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Maintenance Section 5-7
MAINTENANCE
3. Clean the mower of all dirt and debris.
4. Drain the oil from the cutter bar and replace with fresh SAE EP 80 W 90 lube oil. (See Lubrication
Instructions)
5. Store the mower on a clean, dry surface in the down (working) position.
6. Loosen the drive belts or remove the belts and store in a dry place.
7. Lubricate all points and slides before storage; this prevents corrosion.
NOTE: Now would be a good time to replace all damaged parts in preparation for the next cutting season.
MAINTENANCE
MAINTENANCE
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Maintenance Section 5-8
TO THE OWNER/OPERATOR/DEALER
To keep your implement running efficiently and safely, read your manual thoroughly and follow these directions
and the Safety Messages in this Manual. The Table of Contents clearly identifies each section where you can
easily find the information you need.
The OCCUPATIONAL SAFETY AND HEALTH ACT (1928.51 Subpart C) makes these minimum safety
requirements of tractor operators:
REQUIRED OF THE OWNER:
1. Provide a Roll-Over-Protective Structure that meets the requirements of this Standard; and
2. Provide Seat belts that meet the requirements of this paragraph of this Standard and SAE J4C; and
3. Ensure that each employee uses such Seat belt while the tractor is moving; and
4. Ensure that each employee tightens the Seat belt sufficiently to confine the employee to the protected
area provided by the ROPS
REQUIRED OF THE OPERATOR:
1. Securely fasten seat belt if the tractor has a ROPS.
2. Where possible, avoid operating the tractor near ditches, embankments, and holes.
3. Reduce speed when turning, crossing slopes, and on rough, slick, or muddy surfaces.
4. Stay off slopes too steep for safe operation.
5. Watch where you are going - especially at row ends, on roads, and around trees.
6. Do not permit others to ride.
7. Operate the tractor smoothly - no jerky turns, starts, or stops.
8. Hitch only to the drawbar and hitch points recommended by the tractor manufacturer.
9. When the tractor is stopped, set brakes securely and use park lock, if available.

Keep children away from danger all day, every day...

Equip tractors with rollover protection (ROPS) and keep
all machinery guards in place...

Please work, drive, play and live each day with care
and concern for your safety and that of your family and
fellow citizens.
DISC MOWER
DHM 7
DHM7 05/19
Printed U.S.A
P/N50078281
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