Bush Hog | 50045565 | Operator`s manual | Bush Hog 50045565 Operator`s manual

PROFESSIONAL
SERIES
Zero Turn Riding Mower
Published 04/11
Part No. 50045565
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. C01Cover
BUSH HOG
®
2501 Griffin Ave.
Selma, AL 36703
334-874-2700
www.bushhog.com
©2010 Alamo Group Inc.
$0.00
CONGRATULATIONS!
You have invested in the best mower of its type on the market today.
The care you give your Bush Hog mower will greatly determine your satisfaction
with its performance and its service life. We urge a careful study of this manual to provide
you with a thorough understanding of your new mower before operating, as well as
suggestions for operation and maintenance.
If your manual should become lost or destroyed, Bush Hog will be glad to provide you with
a new copy. Order from Bush Hog, P. O. Box 1039, Selma, Alabama 36702-1039. Most of
our manuals can also be downloaded from our website at www.bushhog.com.
As an authorized Bush Hog dealer, we stock genuine Bush Hog parts which are
manufactured with the same precision and skill as our original equipment. Our trained
service personnel are well informed on methods required to service Bush Hog equipment,
and are ready and able to help you.
Should you require additional information or assistance, please contact us.
YOUR AUTHORIZED
BUSH HOG DEALER
BECAUSE BUSH HOG MAINTAINS AN ONGOING
PROGRAM OF PRODUCT IMPROVEMENT, WE
RESERVE THE RIGHT TO MAKE IMPROVEMENTS IN
DESIGN OR CHANGES IN SPECIFICATIONS WITHOUT INCURRING ANY OBLIGATION TO INSTALL
THEM ON UNITS PREVIOUSLY SOLD.
BECAUSE OF THE POSSIBILITY THAT SOME
PHOTOGRAPHS IN THIS MANUAL WERE TAKEN OF
PROTOTYPE MODELS, PRODUCTION MODELS MAY
VARY IN SOME DETAIL. IN ADDITION, SOME
PHOTOGRAPHS MAY SHOW SHIELDS REMOVED
FOR PURPOSES OF CLARITY. NEVER OPERATE
THIS IMPLEMENT WITHOUT ALL SHIELDS IN PLACE.
PROFESSIONAL SERIES
ZERO TURN RIDING MOWER
TABLE OF CONTENTS
SECTION
I
II
III
PAGE
SECTION
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . 2
Dealer Preparation Check List . . . . . . . . . 3
Safety Alert Symbols . . . . . . . . . . . . . . . . 4
Safety Precautions . . . . . . . . . . . . . . . . . . 5
Federal Laws and Regulations. . . . . . . . . 8
INTRODUCTION AND DESCRIPTION . . 9
Introduction. . . . . . . . . . . . . . . . . . . . . . . . 9
Description . . . . . . . . . . . . . . . . . . . . . . . . 9
Specifications . . . . . . . . . . . . . . . . . . . . . 10
OPERATION . . . . . . . . . . . . . . . . . . . . . 11
General Safety . . . . . . . . . . . . . . . . . . . . 11
Pre-Operation Checklist . . . . . . . . . . . . . 11
Operation . . . . . . . . . . . . . . . . . . . . . . . . 12
Mowing Recommendations . . . . . . . . . . 14
PAGE
Battery . . . . . . . . . . . . . . . . . . . . . . . . . .16
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Mower Blades . . . . . . . . . . . . . . . . . . . . .16
Motion Control Adjustment . . . . . . . . . . .17
Drive Adjustments . . . . . . . . . . . . . . . . .17
Test Drive Operations . . . . . . . . . . . . . .17
Leveling The Deck . . . . . . . . . . . . . . . . .18
Counterbalance Spring . . . . . . . . . . . . . .18
Deck Belt Adjustment . . . . . . . . . . . . . .18
Deck Belt Replacement . . . . . . . . . . . . .18
Start Up Maintenance . . . . . . . . . . . . . . .19
Troubleshooting . . . . . . . . . . . . . . . . . . .20
IV ASSEMBLY . . . . . . . . . . . . . . . . . . . . . .21
Wiring Schematics . . . . . . . . . . . . . . . . .22
Safety Decals . . . . . . . . . . . . . . . . . . . . .25
Torque Specifications . . . . . . . . . . . . . . .27
Optional Equipment List . . . . . . . . . . . . .28
Slope Angle Guide . . . . . . . . . . . . . . . . .29
MAINTENANCE . . . . . . . . . . . . . . . . . . . 15
Maintenance Schedule. . . . . . . . . . . . . . 15
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . 16
RETAIL CUSTOMER’S RESPONSIBILITY
UNDER THE BUSH HOG WARRANTY
It is the Retail Customer and/or Operator’s responsibility to read the Operator’s Manual, to operate, lubricate, maintain and store the product in accordance with all instructions and safety
procedures. Failure of the operator to read the Operator’s Manual is a misuse of this equipment.
It is the Retail Customer and/or Operator’s responsibility to inspect the product and to have any
part(s) repaired or replaced when continued operation would cause damage or excessive wear
to other parts or cause a safety hazard.
It is the Retail Customer’s responsibility to deliver the product to the authorized Bush Hog
Dealer, from whom he purchased it, for service or replacement of defective parts which are covered by warranty. Repairs to be submitted for warranty consideration must be made within
forty-five (45) days of failure.
It is the Retail Customer’s responsibility for any cost incurred by the Dealer for traveling to or
hauling of the product for the purpose of performing a warranty obligation or inspection.
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●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●
PROFESSIONAL SERIES (PZ) ZERO TURN RIDING MOWER LIMITED WARRANTY
Bush Hog warrants to the original purchaser of this new Zero Turn Riding Mower, purchased from an authorized Bush Hog
dealer, that the equipment be free from defects in material and workmanship as follows (see dealer for complete details):
•
•
for a period of three (3) years from the date of the retail sale to the original purchaser (the “Three Year Warranty”),
but only as to the drive train, electromagnetic clutch, deck and cutter spindles; and
for the entire length of ownership by the original purchaser (“Limited Lifetime Warranty”), but only as to the
deck weldment which results in the deck not performing its function, in the sole opinion of Bush Hog. Malfunctions
caused by corrosion are not covered by the Limited Lifetime Warranty.
For the Three Year Warranty and the Limited Lifetime Warranty, the obligation of Bush Hog to the purchaser is limited to the repair or replacement of defective parts, at the sole option of Bush Hog. NOTE: The Three Year Warranty
covers parts and labor for the first two years and parts only during the third year.
The Three Year Warranty and the Limited Lifetime Warranty are referred to collectively in this document as the “limited warranty”.
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.
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 transportation to and from dealership or service calls made by dealers, ie, driving time, towing, pickup and delivery.
2. To vendor items which carry their own warranties, such as engines, batteries, tires, and tubes.
3. If the unit has been subjected to misapplication, abuse, misuse, negligence, fire or other accident.
4. 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.
5. 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.
6. 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.
7. To expendable or wear items such as blades, 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, AL. 36703
●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●
Record the model number, serial number and date
purchased. This information will be helpful to your
dealer if parts or service are required.
MODEL NUMBER
SERIAL NUMBER
MAKE CERTAIN THE WARRANTY REGISTRATION
CARD HAS BEEN FILED WITH BUSH HOG
2501 GRIFFIN AVE., SELMA, AL. 36703
DATE OF RETAIL SALE
2
DEALER PREPARATION CHECK LIST
PROFESSIONAL ZERO TURN RIDING MOWER
BEFORE DELIVERING MACHINE — The following check list should be completed.
Use the Operator’s Manual as a guide.
r
r
r
r
r
r
r
r
r
1.
Engine has been serviced.
2.
Battery fluid level is checked.
3.
Low oil pressure warning buzzer checked for operation.
4.
Operator interlock switches checked for operation.
5.
Assembly completed.
6.
All fittings lubricated.
7.
Hydraulic Reservoir filled with oil.
8.
All shields in place and in good condition.
9.
Roll-over protective structure is installed and retractable seat belt functions
properly.
r
r
10. All fasteners torqued to specifications given in Torque Chart.
11. All decals in place and readable. (See decal page.)
r
12. Overall condition good. (i.e. paint, welds)
r
13. Parking brake checked and adjusted, if necessary.
r
14. Steering checked and adjusted, if necessary.
r
r
15. Check tire pressure.
16. Operators manual has been delivered to owner and he has been instructed
on the safe and proper use of the cutter.
Dealer’s Signature
Purchaser’s Signature
THIS CHECKLIST TO REMAIN IN OWNER’S MANUAL
It is the responsibility of the dealer to complete the procedures listed
above before delivery of this implement to the customer.
WARRANTY REGISTRATION AND DELIVERY REPORT
It is the responsibility of the Dealer to do the following:
• Complete the Warranty Registration and Delivery Report Online
3
Safety Alert Symbol
This Safety Alert Symbol means: “ATTENTION! BECOME ALERT!
YOUR SAFETY IS INVOLVED!”
This symbol is used to call attention to safety
precautions that should be followed by the operator to avoid accidents. When you see this symbol, carefully read the message that follows and
heed its advice. Failure to comply with safety precautions could result in death or serious bodily
injury.
Safety Signs
Signal Words
The signal words DANGER, WARNING, AND CAUTION are used on the equipment safety signs. These words
are intended to alert the viewer to the existence and the degree of hazard seriousness.
This signal word indicates a potentially hazardous situation which,
if not avoided, will result in death or serious injury.
White letters on Red
This signal word indicates a potentially hazardous situation which,
if not avoided, could result in death or serious injury
It may also be used to alert against unsafe practices.
Black letters on ORANGE
This signal word indicates a potentially hazardous situation exist
which, if not avoided, may result in minor or moderate injury.
It may also be used to alert against unsafe practices.
Black letters on YELLOW
4
IMPORTANT SAFETY PRECAUTIONS
This symbol is used to call attention to safety precautions that should be followed by
the operator to avoid accidents. When you
see this symbol, carefully read the message
that follows and heed its advice. Failure to
comply with safety precautions could result
in serious bodily injury.
In addition to the design and configuration of equipment, hazard control and accident prevention are
dependent upon the awareness, concern, prudence and proper training of personnel in the operation,
transport, maintenance and storage of equipment. Lack of attention to safety can result in accident, person
al injury, reduction of efficiency and worst of all—loss of life. Watch for safety hazards and correct deficiencies promptly. Use the following safety precautions as a general guide to safe operations when using this
machine. Additional safety precautions are used throughout this manual for specific operating and mainte
nance procedures. Read this manual and review the safety precautions often until you know the limitations.
ACCIDENT PATTERNS TO AVOID
1. CONTACT WITH THE ROTATING BLADE - This accident usually happens when the operator is clearing the discharge chute of grass, (especially when the grass is wet), or when the operator adjusts the
machine without turning it off and waiting for the blades to completely stop.
2. PROPELLED OBJECTS - Sticks, rocks, wires, and other objects can be propelled out through the discharge chute or from under the mower housing. Bystanders are particularly vulnerable.
3. GRASS DISCHARGE CHUTE - The mower shall not be operated without the grass discharge chute
in its lowered position.
4. OVERTURNING - This happens when riding mowers are used on steep slopes, embankments or hills.
The operator in these cases can come in contact with blades or sustain injuries during a fall.
5. MOWER RUNNING OVER THE VICTIM - This usually happens when a riding mower is driven in
reverse. The accident victims are most often young children whom, unseen by the operator of the
mower, were in the area being mowed.
WE SHARE YOUR DESIRE TO PROTECT YOURSELF, YOUR FAMILY, YOUR FRIENDS AND YOUR
NEIGHBORS FROM ACCIDENTAL INJURY. OBSERVING AND ENFORCING THE FOLLOWING GUIDE
LINES WILL HELP TO INSURE THE SAFETY OF EVERYONE.
SAFETY INSTRUCTIONS AND RECOMMENDATIONS
1.
PEOPLE WHO OPERATE, SERVICE, OR ARE OTHERWISE ASSOCIATED with the Zero Turn Riding Mower
should be trained in its proper use and warned of its dangers. Before operating, adjusting,
or servicing the Zero Turn Riding Mower they should read and understand this entire manual and the
engine manual.
2.
AVOID CONTACT WITH MOVING PARTS. Keep hands and feet from under mowing deck and away
from blades at all times. Turn engine (motor) off if you must unclog the discharge chute.
3.
AVOID HILLS AND SLOPES. Use EXTREME caution when mowing and/or turning on slopes as loss of traction
and/or tip-over could occur. Drive slower on slopes. DO NOT mow slopes greater than 15 degrees. Watch for
ditches, holes, rocks, dips and rises, which change the operating angle. Keep away from drop-offs and steep
banks. Avoid sudden starts when mowing uphill - mower may tip backwards. Loss of traction may occur going
downhill - weight transfer to the front wheels may cause drive wheels to slip and cause loss of braking. DO NOT
mow slopes when grass is wet - slippery conditions affect steering and reduce traction and braking. The operator
is responsible for safe operation on slopes.
4.
DISENGAGE POWER TO MOWER BEFORE BACKING UP. Do not mow in reverse unless absolutely
necessary and then only after turning around and observing the entire area behind the mower. Go slowly.
Most “running over victim” accidents occur in reverse.
5.
BEGINNING OPERATORS SHOULD LEARN HOW TO STEER the Zero Turn Riding Mower before
attempting to mow. Start with slow engine speed and drive without the blades engaged in open area until
comfortable with the machine.
5
SAFETY CONTINUED
6.
KNOW HOW TO STOP QUICKLY. Know the location and operation of every control, especially how to brake and
how to disengage the mower blades.
7.
DO NOT MOVE THE CONTROL LEVERS from forward position to reverse position rapidly. The speed
and/or direction of travel is affected instantly by movement of the Control Levers.
8.
DO NOT ALLOW CHILDREN TO OPERATE MOWER. Do not allow others who have not had instructions to operate mower. Do not operate the mower when children or others are in the area.
9.
ALWAYS TURN ENGINE OFF AND REMOVE KEY before leaving mower to prevent children and
inexperienced operators from starting the engine. Never leave the mower unattended with engine running. Always wait for all moving parts and all sounds to stop before leaving operator’s seat. Always set
the parking brake on an unattended mower.
10. WEAR STURDY, ROUGH-SOLED WORK SHOES AND CLOSE-FITTING TROUSERS AND SHIRTS.
Never operate mower in bare feet, sandals or sneakers.
11. WEAR PERSONAL PROTECTIVE EQUIPMENT such as, but not limitied to, protection for eyes, ears, feet, hands
and head when operating or repairing equipment. Do not wear loose clothing or jewelry that may catch on equipment moving parts.
12. NEVER CARRY PASSENGERS.
13. KNOW THE AREA YOU ARE TO MOW. Watch for hidden dangers such as rocks, roots, sticks, holes,
bumps, and drop-offs, etc. Before mowing, pick up all debris in area to be mowed. Sharp and hard
objects can be propelled at a high speed and can act like shrapnel. Walk through tall grass BEFORE
MOWING to make sure there are no hidden dangers. Mow higher than desired in tall grass to expose
any hidden objects and/or obstacles, clean the area, and then mow to the desired height.
14. BE SURE THE AREA IS CLEAR of other people before mowing. Stop machine if anyone enters the area.
15. NEVER REFUEL A MOWER INDOORS. Allow the engine time to cool before refueling. Unseen vapors may be
ignited by a spark. Always clean up spilled gasoline. Never run the engine indoors in a garage
or any other closed building. Allow engine to cool before storing in any enclosure. The engine exhaust
and gasoline fumes are dangerous.
16. NEVER REMOVE THE FUEL CAP or add gasoline to a running or hot engine or an
engine that has not been allowed to cool for several minutes after running. Always make sure the gas
cap is in place.
17. DO NOT SMOKE AROUND THE MOWER or the gasoline storage container. Gasoline fumes can easily ignite.
18. KEEP GASOLINE IN A WELL-VENTILATED AREA away from your living quarters and in tightly
capped safety cans. Never store mower with gasoline in the tank inside a building where fumes may
reach open flame or spark.
19. DISENGAGE BLADES, STOP ENGINE, ENGAGE PARKING BRAKE AND REMOVE IGNITION KEY before any
servicing. Be sure all moving parts and all sounds have stopped. Let engine cool and disconnect the spark plugs so
the engine cannot start by accident.
20. KEEP ALL NUTS, BOLTS, AND SCREWS TIGHT to be sure equipment is in safe working condition, especially blade bolts.
21. VEHICLE SHOULD BE STOPPED AND INSPECTED FOR DAMAGE after striking a foreign object and
the damage should be repaired before restarting and operating the equipment. Stop immediately and
check for damage or loose parts if mower should start vibrating.
22. DISENGAGE BLADES BEFORE DRIVING ACROSS WALKS or projecting objects or transporting.
23. KEEP SAFETY DEVICES AND GUARDS IN PLACE. If any of the safety switches become inoperable,
have them repaired immediately.
24. DO NOT STEP OR STAND ON THE MOWER HOUSING. Step or stand only on the tread areas on the deck.
25. WATCH OUT FOR TRAFFIC near roadways and when crossing roads.
26. THIS MACHINE IS NOT MEANT FOR HIGHWAY OR STREET USE. It is not a recreational vehicle and it should not
be operated as such.
27. WHEN FEASIBLE, DO NOT USE MOWER WHEN GRASS IS WET OR SLIPPERY.
28. MOW ONLY IN DAYLIGHT OR GOOD ARTIFICIAL LIGHT.
6
SAFETY CONTINUED
29. ALWAYS DISENGAGE THE MOWER BLADE CLUTCH when transporting.
30. Do not operate the mower under influence of drugs or alcohol.
31. Do not change the engine governor settings or overspeed the engine. Operating an engine at excessive speed may
increase the hazard of personal injury.
TOWING
1.
Use for towing only if equipped with a Bush Hog hitch kit. Do not attach towed equipment except at the hitch point.
2.
Never allow children or others in or on towed equipment.
3.
On slopes, the weight of the towed equipment may cause loss of traction and loss of control.
4.
Travel slowly and allow extra distance to stop.
SLOPE OPERATION
DANGER
POTENTIAL HAZARD
Mowing on wet grass or steep slopes can cause sliding and loss of control.
Safe
Zone
WHAT CAN HAPPEN
Wheels dropping over edges, ditches, steep banks, or
water can cause injury, or death by drowning.
HOW TO AVOID THE HAZARD
Do not mow slopes when grass is wet.
Do not mow near drop-offs or near water.
Do not mow slopes greater than 15 degrees.
Reduce speed and use extreme caution on slopes.
Avoid sudden turns or rapid speed changes.
Do not ride or operate the ZTR if th mower head has
been removed.
Danger
Zone
Water
1.
Use EXTREME caution when mowing and/or turning on slopes as loss of traction and/or tip-over could occur. The
operator is responsible for safe operation.
2.
See inside of the back cover to determine the approximate slope angle of the area to be mowed.
3.
Use a walk behind mower and/or a hand trimmer near drop-offs, ditches, steep banks or water. This area can be dangerous.
4.
Progressively greater care is needed as the slope increases.
5.
Always avoid sudden starting or stopping on a slope. If tires lose traction, disengage the blades and proceed slowly down the
slope.
6.
Avoid sudden starts when mowing uphill. Mower may tip backwards.
7.
Be aware that loss of traction may occur going downhill. Weight transfer to the front wheels may cause drive wheels to
slip and cause loss of braking and steering.
8.
Watch for ditches, holes, rocks, dips, and rises that change the operating angle, as rough terrain could overturn the machine.
Tall grass can hide obstacles.
9.
Remove or mark obstacles such as rocks, tree limbs, etc. from the ,mowing area. Tall grass can hide obstacles.
10. Use extreme care with grass catches or attachments. These can change the stability of the machine and cause loss of control.
11. Follow the manufacturer’s recommendations for counterweights to improve stability.
12.. Check carefully for overhead clearances (ie. branches, doorways, and electrical wires) before driving under objects and
do not contact them.
SLOPE ANGLE GUIDE LOCATED INSIDE REAR COVER
7
IMPORTANT FEDERAL LAWS AND REGULATIONS* CONCERNING
EMPLOYERS, EMPLOYEES AND OPERATIONS.
*(This section is intended to explain in broad terms the concept and effect of the following federal laws and
regulations. It is not intended as a legal interpretation of the laws and should not be considered as such).
U.S. Public Law 91-596 (The Williams-Steiger Occupational and Health Act of 1970) OSHA
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 Regulations
Current OSHA regulations state in part: “At the time of initial assignment and at least annually thereafter, the
employer shall instruct every employee in the safe operation and servicing of all equipment with which the
employee is, or will be involved.” These will include (but are not limited to) instructions to:
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.
Child Labor Under 16 Years Old
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.)
8
SECTION I
INTRODUCTION AND DESCRIPTION
INTRODUCTION
smooth, even cut is desired and superior maneuverability is needed. The tractor unit consists of either a
25 hp Kawasaki, 26 hp Kawasaki, 27 hp Kohler, 28 hp
EFI Kohler or 30 hp Kohler twin cylinder engine. The
engine has a pressurized oil lubrication system with
spin-on type filter, fused electronic ignition, electric start
and a 15.5 gallon fuel system with 61” and 73” decks or
a 12.5 gallon fuel system with 55” decks.
We are pleased to have you as a Bush Hog customer.
Your Bush Hog Zero Turn Riding Mower has been
carefully designed to give maximum service with minimum down time. This manual is provided to give you
the necessary operating and maintenance instructions for keeping your mower in top operating condition. Please read this manual thoroughly. Understand
what each control is for and how to use it. Observe all
safety precautions decaled on the machine and noted
throughout the manual for safe operation of the implement. If any assistance or additional information is
needed, contact your authorized Bush Hog dealer.
Two hydrostatic pumps and two wheel motors are
used for propelling and steering. The pumps are belt
driven by the engine output shaft. One lever for each
drive controls both speed and direction. This independent control of each drive wheel coupled with continuously variable speed selection gives the Zero Turn
mower exceptional maneuverability.
NOTE:
All references made to right, left, front, rear, top or bottom is as viewed facing the direction of forward travel.
The mower attachment is available in 55”, 61” or 73”
cutting widths. The mower has three cutting blades
driven by an electromagnetic clutch through a single
V-belt
DESCRIPTION
The Zero Turn Riding Mower is intended for use on
lawns and other frequently maintained areas where a
9
CONTROLS
OPERATOR INTERLOCK SYSTEM
Your Bush Hog Zero Turn Riding Mower is equipped
with an Operator Interlock System that is designed to
help prevent possible serious injuries. Understanding
and maintaining this system is vital for safe operation.
To Start Engine:
1. Blades (PTO) must be disengaged.
2. Control levers in neutral (swung out).
3. Parking brake set.
The Engine Will Stop If:
1. The operator leaves the seat with:
a. The control levers out of neutral (swung
in).
b. The blades are engaged.
c. The parking brake is off.
d. All of the above.
2. The park brake is on before the control levers
are swung in.
DO NOT OPERATE MOWER IF SAFETY
SWITCHES ARE NOT OPERATING PROPERLY.
OPERATOR CONTROLS
1
Ignition Key - Starts and stops engine.
2
Engine Throttle - Controls engine speed.
3
Two Steering/Speed Control Levers - In front of
seat at side. (See page 21)
4
PTO Switch - Engages electric clutch which
engages mower blades.
5
Parking Brake Lever- Engages parking brake.
(See page 14)
6
Cutting Height Adjust Pin - Sets cutting height to
desired position. (See page 12)
7
Choke Location- Aids in starting engine.
(Not Used On EFI Models)
8
Light Switch (Optional)
9
Hour Meter / Tachometer (see Instruction,
page16)
10
Warning Lights / Audible Alert for high engine
temperature (Kohler models only) and oil pressure.
11
Deck Lift Switch (Optional) - For raising and lowering deck.
WARNING
DO NOT OPERATE MACHINE UNLESS INTERLOCK SYSTEM FUNCTIONS PROPERLY. FAILURE TO HEED THIS WARNING
MAY RESULT IN SERIOUS INJURY, DEATH
OR EQUIPMENT DAMAGE.
12
Fuel Tank Site Lines - Monitor amount of fuel in
tank. (See page 14
13
DC Power Outlet (See page 14)
10
TRACTOR SPECIFICATIONS
9
Tread Width - 55” Deck models - Outside Tires. . . . . . 52”
61” Deck models - Outside Tires . . . . . 55”
73” Deck models - Outside Tires . . . . . 59”
8
2
Height - To top of seat back . . . . . . . . . . . . . . . . . . . . 51”
11
1
7
Fuel Tank - 61” & 73” Deck models . . . . . . . . 15.5 gallons
- 55” Deck models. . . . . . . . . . . . . 12.5 gallons
4
Hydrostatic Fluid Reservoir . . . . . . . . . . Approx. 1 gallon
DECK SPECIFICATIONS
Hydrostatic Pumps- All Models . . (2) Hydro-Gear pumps
Engines -
ITEM
25 h.p. Kawasaki
26 h.p. Kawasaki
27 h.p. Kohler Command Pro
28 h.p. Kohler Command Pro Fuel Injected
30 h.p. Kohler Command Pro
Cutting width
55”
61”
73”
Cutting Height --------------- 1-1/2” to 5” in 1/4” increments
Tires - Front (All models) . . . . . . . . . . . . . . . . 13 x 6.5 - 6
Drive - 61” & 73” decks . . . . . . . . . . . 24 x 12.0 -12
55” deck . . . . . . . . . . . . . . . . . 24 x 9.5 - 12
Blades
19”
21”
25”
Overall width
including chute
67”
73”
85”
Material thickness - Deck -------------7 GA.-----------------
10
Spindle bearings ----------------------25 mm------------------
SECTION II
OPERATION
GENERAL SAFETY
8. Inspect V-belts
Only qualified people familiar with this operator’s manual should operate this machine. Operator should
wear hard hat, safety glasses, and safety shoes. Avoid
loose fitting clothing or jewelry. The operator should
read, understand and practice all safety messages
shown on the caution, warning and danger decals affixed to the machine to avoid serious injury or death.
Before beginning operation, clear work area of any objects that may be picked up and thrown by mower.
Check for ditches, stumps, holes or other obstacles
that could upset power unit or damage mower. Tall
grass can hide obstacles. Always push steering levers
apart, set parking brake, disengage PTO, turn off engine, and allow blades to come to a complete stop before leaving operator’s seat. Do not operate without all
shields in place and in good condition.
9. Check tire pressure (Use low pressure gauge):
Front Tires - 15 psi, Drive Tires - 15 psi
10. Make sure underside of mower deck is free of
grass.
11. Make sure mower blades are sharp and secured
tightly.
12. Clean the air intake screen on the engine if
necessary.
13. Perform any other maintenance as it becomes
necessary. (See “Maintenance” section)
14.Check low oil pressure warning buzzer for operation. (It should “sound-off” whenever ignition key
is in the “on” position, but engine is not running.)
PRE-OPERATION CHECKLIST
15. Check parking brake operation by disengaging
hydrostatic pumps (freewheeling position), and
placing the brake lever in the “on” position.
Attempt to rock tractor by hand. Both drive wheels
should be locked. When the brake handle is in the
“off” position, both drive wheels should turn freely.
If there is a problem in either position, refer to
adjustment procedure in the maintenance section.
1. Make sure fuel tank is full. Use regular unleaded
gasoline. See engine manual for more details.
WARNING
AVOID SERIOUS INJURY OR DEATH:
GASOLINE IS EXTREMELY FLAMMABLE AND EXPLOSIVE UNDER CERTAIN CONDITIONS.
l REFUEL IN A WELL VENTILATED AREA WITH
ENGINE STOPPED.
l DO NOT SMOKE OR ALLOW FLAMES OR
SPARKS IN THE REFUELING AREA OR
WHERE GASOLINE IS BEING STORED.
l DO NOT OVERFILL FUEL TANK. AFTER
REFUELING, MAKE CERTAIN THE TANK CAP
IS CLOSED PROPERLY AND SECURELY.
l BE CAREFUL NOT TO SPILL FUEL WHEN
REFUELING. FUEL VAPOR OR SPILLED FUEL
MAY IGNITE. IF ANY FUEL IS SPILLED, MAKE
SURE THE AREA IS DRY BEFORE STARTING
THE ENGINE.
l KEEP OUT OF REACH OF CHILDREN
16. Seat Adjustments: The high-back full suspension
seat has a variable rate suspension system,
adjustable lumbar support and sliding seat to
accomodate different operators.
Operator Weight Adjustment Knob - Turn the knob
until the indicator position closely matches your
weight to give the most comfortable ride.
Adjustable Lumbar Knob (Under left arm rest) Turn knob clockwise or counter-clockwise to
achieve desired support.
Back Angle Adjustment Knob (Under right arm
rest) -Turn knob clockwise or counter-clockwise to
achieve desired support.
2. Make sure dirt and foreign matter are kept out of
fuel tank. Use a clean funnel and fuel can.
Lever Release Seat Slides - Pull the lever outward
to release the latch. Slide the seat forward or rearward to your most comfortable position and release
the lever.
3. Do not mix oil with gasoline.
4. Do not use white, high test or premium gasoline.
Do not use de-icers, carburetor cleaners or other
such additives.
5. Check the crankcase oil level. Make sure the
engine is off. The mower should be parked on a
level area. Do not overfill. (See your engine manual for more detailed instructions.)
WARNING
ENGINE EXHAUST GASES CONTAIN
POISONOUS CARBON MONOXIDE.
l NEVER RUN ENGINE IN A CLOSED BUILDING
OR CONFINED AREA.
l AVOID INHALING EXHAUST GASES.
6. Check the hydrostatic transmission oil level. (See
“Maintenance” section of this manual.)
7. Check battery fluid level.
11
WARNING
OPERATION
AVOID SERIOUS INJURY OR DEATH:
DO NOT MOVE STEERING LEVERS FROM FOR
WARD TO REVERSE OR REVERSE TO FORWARD
POSITION RAPIDLY. A SUDDEN CHANGE IN DIREC
TION MAY CAUSE LOSS OF CONTROL AND/OR
DAMAGE TO EQUIPMENT. FOR SMOOTH, SAFE OP
ERATION, MOVE THE CONTROL LEVERS IN A GEN
TLE, SLOW MOTION, ESPECIALLY ON GRADES.
1. OPEN FUEL TANK SELECTOR VALVE left or
right tank.
2. MOVE CONTROL LEVERS TO neutral “OUT”
position by pushing each one straight sideways.
3. SET PARKING BRAKE. Pull rearward to set.
4. DISENGAGE MOWER BLADE CLUTCH by
moving clutch switch to “OFF” (down) position.
12. BRAKING:
To brake mower, gently move
Control Levers in the direction opposite to travel.
If the parking brake is engaged with the Control
Levers in the “IN” position the engine will stop.
5. SET ENGINE CHOKE CONTROL for cold starts
to full position.
6. SET ENGINE THROTTLE TO 1/2 throttle.
13. CUTTING HEIGHT ADJUSTMENT:
1. Stop engine and move the control levers to
the neutral position and engage the parking brake.
2. Disengage the blades.
3. Depress the deck lift foot pedal raising the
deck to the transport position and place the pedal in
the locked position.
4. Insert height adjustment pin into the hole corresponding to the desired cutting height. See
decal on the side of the deck lift plate.
5. Depress the deck lift pedal and lower the deck to
the selected mowing height.
6. To transport, depress the lift foot pedal and lock in
position, then move the height adjustment pin to the 5”
position.
7. The cutting height adjustment is only a recommended guide. During normal mowing cut only 1/3 of the
grass blade. Set cutting height to achieve your desired results.
7. TURN IGNITION KEY to “START” position and
release to “RUN” as soon as engine starts.
NOTE: Prolonged cranking will damage starter
motor and shorten the battery life.
8. ADJUST ENGINE THROTTLE AND CHOKE for
desired engine smoothness and speed. NOTE:
When mowing, always run engine at full throttle.
9. RELEASE PARKING BRAKE. Push brake lever
forward to release.
CAUTION
If the operator is inexperienced with the zero turn
mower lever steering/speed control, he/she
should follow these recommendations: Disengage
the mower blades. Go very slowly until thoroughly
familiar with the machine. Keep away from fences,
buildings, and other obstructions. While becom
ing familiar with the machine, move the Control
Levers smoothly and slowly. Practice until opera
tion is smooth and efficient.
10. A roll-over protection system (ROPS) is installed
on your machine. Operate unit with the ROPS in
the raised and locked position and use seat belt.
There is no roll-over protection when the ROPS
is down. If it is necessary to lower the ROPS, do
not wear seat belt. Raise the ROPS as soon as
clearance permits.
WARNING
CUTTING HEIGHT ADJUSTMENT DECAL
MAKE SURE SEAT FRAME RETENTION
CLICK-PINS ARE IN PLACE AFTER LIFTING
SEAT PAN FOR SERVICE.
11. TO DRIVE: Adjust seat forward or backward for
operator comfort. Move the Control Levers to the
“IN” position. Move Control Levers forward to
move forward. Move levers slowly forward to
increase speed. To reverse direction, move the
Control Lever on the side to which you want to
turn slightly rearward of the other Control Lever.
To turn on a zero radius axis, go slowly and pull
one Control Lever back and push the other
Control Lever forward, depending on which
direction you wish to turn.
12
ANTI-SCALP ROLLER OR CASTER ADJUSTMENT:
1. Stop engine and move the control levers to the
neutral position and engage the parking brake.
2. Disengage the blades.
3. The Anti-Scalp deck rollers are adjustable up and
down to provide improved deck flotation and scalping protection at various cutting heights. They are not intended
to ride continously on the ground. Rollers should maintain
.375” minimum clearance to ground. DO NOT adjust rollers
to support deck. (Refer to photographs)
WARNING
Use EXTREME caution when mowing and/or
turning on slopes as loss of traction and/or
tip-over could occur. Drive slower on slopes.
DO NOT mow slopes greater than 15 degrees.
Watch for ditches, holes, rocks, dips and
rises, which change the operating angle.
Keep away from drop-offs and steep banks.
Avoid sudden starts when mowing uphill mower may tip backwards. Loss of traction
may occur going downhill - weight transfer to
the front wheels may cause drive wheels to
slip and cause loss of braking. DO NOT mow
slopes when grass is wet - slippery conditions affect steering and reduce traction and
braking. The operator is responsible for safe
OPERATION ON SLOPES.
14. ENGAGE MOWER BLADES by pulling
up on the PTO clutch switch. The engine will not
start if the PTO switch is engaged. If the engine
is running while the PTO clutch is engaged and
the operator leaves the seat, the engine will stop.
15. TO STOP:
A.
Slow engine speed with throttle to slowest
position
B.
Disengage the mower blade clutch by moving the PTO clutch switch to the “OFF” position.
C.
Move Control Levers to neutral position and
then to the “OUT” position.
D.
Set the parking brake.
E.
Turn ignition key to “OFF” position.
F.
Remove the key and wait for all movement
and sound to cease before dismounting.
CASTER ASSEMBLY
(Standard on 73” decks, optional on 61” decks)
ANTI-SCALP ROLLER
Spacers may be positioned above and/or below the
caster arm to adjust position.
Roller Height Adjustment Holes
13
MOWING RECOMMENDATIONS
WARNING
1. Keep mower blades sharp.
AVOID SERIOUS INJURIES TO OTHERS:
ALWAYS REMOVE THE KEY FROM THE IGNITION SWITCH WHENEVER THE MOWER IS UNATTENDED TO PREVENT CHILDREN OR
UNAUTHORIZED PERSONS FROM STARTING
THE ENGINE.
2. Make sure deck and discharge chute are clean.
3. Pivoting Front Axle Settings - The Professional
Series pivoting front axle increases operator
comfort, traction, mower life and improves quality
of cut. In some conditions stopping the front axle
from pivoting will improve the evenness of the
cut. It can also reduce scuffing of the anti-scalp
rollers when mowing on uneven terrain.To set
the front axle in a fixed position, move the locking pins to the outer positions. (See page 21)
16. PUMP BYPASS-TO MOVE THE TRACTOR
WITHOUT POWER: The pump bypass valves
are located on the forward sides of each pump.
Turn the control clockwise two complete
turns to release the pump for free wheeling; turn
them counter-clockwise to resume operation.
DANGER
TO AVOID SERIOUS INJURY FROM BLADE CONTACT, POWER MUST BE OFF TO CLEAN DISCHARGE CHUTE. KEEP HANDS AND FEET
AWAY FROM UNDERNEATH MOWER TO AVOID
SERIOUS INJURY OR DEATH.
Pumps as seen from above. Use a rod through the hex
head, or a 5/8” wrench to open or close the valve.
WARNING
ROTARY MOWERS CAN DISCHARGE OBJECTS
AT HIGH SPEEDS. TO AVOID SERIOUS INJURIES OR DEATH:
l OPERATE ONLY WITH SIDE BANDS IN
GOOD REPAIR AND CHUTE OR GRASS
CATCHER ATTACHMENT INSTALLED.
l KEEP CHILDREN, PETS, AND BYSTANDERS
AWAY FROM THE WORK AREA.
l DO NOT OPERATE MOWER IN THE VICINITY OF OTHER PERSONS.
l DISCHARGE AWAY FROM
BUILDINGS,
WALLS OR OTHER STRUCTURES.
Engine Oil
Filler Cap
Hydrostatic Fluid
Reservoir
Fuel Tank
Site Lines
Operator Weight
Adjustment Knob
Seat Slide
Release Lever
Electrical
Fuses
NOTE: To move the tractor without power, the pumps
must be unlocked and in the free wheel position. Failure to do so could possibly damage the hydraulic motors. Never pull at more than 2 MPH.
17. FUEL TANK SELECTOR VALVE: Located on
the front panel below the operator is the fuel
directional valve. This valve has three positions
for operations and each position is made in 1/4
turn increments. This directional valve has a shut
off position and can be used when the machine
will not be used for a few days or when the unit is
transported to and from a work site.
Fuel Flow
Off
Right Tank
Left Tank
Valve Position
Down
Right
Left
EFI Valve Position
Right
Down
Left
Cutting Height
Adjustment Pin
DC Power Outlet
Fuel Tank
Selector Valve
14
Parking Brake Lever
SECTION III
MAINTENANCE
CAUTION
BEFORE PERFORMING ANY MAINTENANCE, TURN OFF ENGINE, REMOVE KEY AND DISCONNECT SPARK
PLUGS. USE EXTREME CARE WHEN WORKING ON MACHINERY. DO NOT WEAR WATCH OR JEWELRY. DO
NOT WEAR LOOSE FITTING CLOTHES, AND OBSERVE ALL COMMON SAFETY PRACTICES WITH TOOLS.
IMPORTANT:
BEFORE PERFORMING ANY SERVICE, MAINTENANCE OR REPAIR ON THE ENGINE, REFER TO THE RESPECTIVE ENGINE MANUFACTURERS’ MANUAL FOR SPECIFIC INFORMATION CONCERNING YOUR PARTICULAR BRAND OF ENGINE.
MAINTENANCE SCHEDULE
SERVICE
Check crankcase oil level
Check air intake screen
WHEN
before each use
after each use
Clean grass from under deck
after each use
Check tire pressure
every 10 hours
Sharpen mower blades
every 10 hours
Clean air filter element
every 8 hours
Check 20W50 motor oil
in hydrostatic system
every 10 hours
Check drive belts
every 50 hours
(20 hr break-in)
every 50 hours
every 50 hours
every 50 hours
every 50 hours
every 50 hours
(5 hrs break-in)
Grease blade spindles
Grease front wheels
Grease caster wheel pivots
Grease pusher bar pivots
Change engine
crankcase oil and filter
Change hydrostatic oil and filter (See your Bush Hog Dealer)
Important: Substitution of an improper filter will cause
hydrostatic failure which will not be covered under warranty
every 500 hours
(50 hrs break-in)
Replace air
filter element
annually or 500 hours
Check spark plugs
annually or 100 hours
Service battery
annually or 500 hours
Perform these maintenance procedures more frequently under extremely dusty, dirty conditions.
Replace decals when illegible. Write parts dept. for free replacement.
WARNING: Make sure seat frame retention click-pins are in place after lifting seat pan for service.
15
4. TIRES:
Correct tire pressure is essential for efficient
operation of the mower. Check tire air pressure periodically. Inflate front and rear tires to 15 psi.
1. ENGINE:
For complete maintenance and operating information for your engine, please refer to your
engine operating and maintenance instructions
furnished by the engine manufacturer and
included in your Zero Turn mower information packet.
NOTE
Air intake screen must be kept clean. If
plugged, engine may be seriously damaged by over heating.
Lug bolts should be checked regularly for tightness. Torque lug bolts to 50 ft./lbs. The center hub
nut should be torqued to 175 - 200 ft./lbs. and cotter key installed.
2. TACHOMETER / HOURMETER
The tachometer / hourmeter includes a
FlashAlert feature to remind you to change
engine oil and filter at recommended intervals. The tachometer displays engine rpm
when the engine is running and elapsed time
in hours when the engine is turned off.
5. MOWER BLADES:
Check sharpness of mower blades after every 10
hours of operation. To sharpen blades proceed as
follows:
WARNING
WHEN IT IS NECESSARY TO RAISE THE DECK
OR MOWER FOR SERVICE OR MAINTENANCE,
TO AVOID SERIOUS INJURY OR DEATH, STOP
ENGINE, SET PARKING BRAKE, REMOVE IGNITION KEY AND SPARK PLUG WIRES AND SECURELY SUPPORT THE DECK OR MOWER
BEFORE WORKING UNDERNEATH.
Oil Change Flash Alert - Break-in interval at 5
hours with 1 hour before and after flash. Normal
interval at 50 hours with 2 hour before and
after flash.
3. BATTERY:
When taking the battery out of the mower for
servicing, make sure to reconnect the cables to
the battery exactly as they were prior to removal.
A. Lift deck and secure in raised position.
B. Remove bolt, cup washer, and blade from shaft.
C Blades should be discarded when worn excessively. See sketch.
D. Sharpen blade with a hand file, electric grinder
Keep the battery clean. Remove the corrosion
around the battery terminals by applying a solution of one part baking soda to four parts water.
Coat all exposed terminal surfaces with a light
layer of grease or petroleum jelly to prevent corrosion.
New Blade
25 Degrees
NOTE
At temperatures below 32 degrees F (0 deg
C) the full charge state must be maintained to
prevent cell electrolyte from freezing and
causing permanent battery damage.
When Notch Starts
Discard Blade
Dangerous!
or blade sharpener. Wear gloves and eye protection
when sharpening. Grind blade at original bevel.
E. Check balance of blade by positioning the blade
on a nail or blade balance pedestal. Grind the blade on
the end that is heavier until both sides balance.
F. Install blades with the concave side of the cup
washer against blade. Be sure blades are installed with
uplifts and cutting edges in the proper directions.
Tighten retaining bolt to 76 ft./lbs.
WARNING
WARNING
WHEN IT IS NECESSARY TO RAISE THE DECK
OR MOWER FOR SERVICE OR MAINTENANCE,
TO AVOID SERIOUS INJURY OR DEATH, STOP
ENGINE, SET PARKING BRAKE, REMOVE IGNITION KEY AND SPARK PLUG WIRES AND SECURELY SUPPORT THE DECK OR MOWER
BEFORE WORKING UNDERNEATH.
AVOID SERIOUS INJURY OR DEATH:
l THE BATTERY CONTAINS SULFURIC ACID.
AVOID CONTACT WITH SKIN, EYES OR CLOTHING.
EYES - FLUSH WITH WATER AND GET PROMPT MEDICAL ATTENTION.
ANTIDOTE: INTERNAL - DRINK LARGE QUANTITIES
OF WATER OR MILK. FOLLOW WITH MILK OF MAGNESIA, BEATEN EGG OR VEGETABLE OIL. CALL A
PHYSICIAN IMMEDIATELY.
l BATTERIES PRODUCE EXPLOSIVE GASES.
KEEP SPARKS, FLAMES AND SMOKING MATERIALS AWAY. VENTILATE WHEN CHARGING IN AN
ENCLOSED SPACE. WEAR EYE PROTECTION
WHEN WORKING NEAR BATTERIES.
l KEEP OUT OF REACH OF CHILDREN.
6. CLEANING GRASS BUILD UP UNDER DECK
Depress the deck lift foot pedal and lock in position, then
move the height adjustment pin to the 5”
position.
Lift the front of the unit and support unit securely.
Clean out any grass build up from underside of deck and
in deck discharge chute.
16
6. Re-tighten the nuts at the end of the hex
turnbuckles and repeat the procedure for
the opposite side of the unit.
MOTION CONTROL LEVER ADJUSTMENT
1. There are three lever height positions available.
Place the levers in the position that provides the
most confortable operating position for you.
7. Shut the unit off. Remove the jumper wire from
the wiring harness and replace the connectors
into the seat switch. Never operate the mower
unless all safety switches are operating properly.
2. Align the levers front/rear position. With the
levers in the neutral position, loosen the hardware and adjust the levers by tilting forward or
backward until properly aligned. tighten hardware.
DRIVE ADJUSTMENTS
Steering and motion controls should be uniform in all
forward and reverse speeds. From the reverse position the levers should automatically return to neutral
when released.
CAUTION
STOP THE ENGINE BEFORE MAKING ADJUSTMENTS.
TEST DRIVE OPERATIONS
Check air pressure in tires. Equal tire pressure is critical for proper drive operation.
1. Raise drive wheels off ground. Safely block
the frame in this position.
2. Put control levers in neutral lock position
(control levers swung outward).
3. Start engine. Wheels should not rotate. If one or
both drive wheels are turning, perform procedures under “Motion Controll Adjustment” for
side(s) that wheel turns.
Lever Position Adjustment Bolts
MOTION CONTROL STEERING ADJUSTMENT
1. Raise the drive wheels of the Zero
off of the ground. Safely block the
in this position so it is secure.
adjustment must be made with the
wheels turning.
Turn
frame
This
drive
Control Arm
2. Remove the electrical connection from
the seat switch and temporarily install a
jumper wire across the terminals of the
wiring harness.
Hex Turnbuckle
3. Loosen the jamnuts on the hex turnbuckle,
which connects the lever control arm to
the pump control arm. Note: the nuts to
the front of the hex turnbuckle have lefthanded threads.
4. Start the engine. Run the engine at full
throttle and release brake.
Jamnut
5. Position the control levers in the neutral
position.
If
the
drive
wheels
creep
(rotate) in the neutral position then
lengthen
or
shorten
the
turnbuckle
assembly. Make the adjustment to stop
the wheel from rotating.
Control Arm Lever
Pump
Control Arm
17
LEVELING THE DECK
DECK BELT REPLACEMENT
CAUTION
STOP THE ENGINE, SET PARKING BRAKE,
REMOVE IGNITION KEY AND SPARK PLUG
WIRES FOR SAFETY.
Height Adjustment Pin
Deck Lift Pedal
Belt adjustment should be checked every 50 hours to
get maximum life and cutting performance from the
mower. Belt tension is adjusted by increasing or decreasing the length of the spring on the movable idler.
For proper belt tension on the 55”, 61” and 73” mowers, the spring length should be set to 7-1/2” inside
hook to inside hook with the deck in 3” cutting height
position. To adjust the spring length, loosen or tighten
Upper
the 3/8” hex nuts on the eye bolt until the correct
Chain Fastener spring length is reached.
DECK BELT REPLACEMENT
USE ONLY GENUINE BUSH HOG REPLACEMENT PARTS
Anti-Scalp
Rollers
A. Remove the deck shield assembly.
B. Relieve the spring tension by loosening the two
3/8” hex nuts on the eye bolt.
C. Remove old belt.
D. Install new belt. Be sure that the belt is properly
positioned in all sheave grooves.
E. Adjust tension on the belt by adjusting the length
of the spring on the moveable idler. The correct
spring length is 7-1/2” for the 55”, 61” and 73”
decks.
F. Replace the deck shield assembly.
Deck
1. Set all tire pressures to the correct specifications.
2. Place machine on a level slab of concrete.
DECK SPINDLE BELT ROUTING DIAGRAM
3. Depress the deck lift pedal raising the deck to
the full lift height position and move the height
adjustment pin to the 5” position.
Front Of Deck
7-
1/
2”
4. Place a level on the deck, from front to rear. If
the level is too short to reach all the way from
front to rear, lay a straight edge on the deck first,
then place the level on the straight edge.
(Measure from inside of
hook to inside of hook)
5. Lay a .125” spacer beneath the front of the level.
6. Adjustment may be made by loosening the
upper chain fasteners and moving the fasteners
in the provided slot. Adjust fasteners until the level’s bubble is centered. Repeat for the other side.
Spring Loaded
Idler Assembly
Engine/Clutch Pulley
COUNTERBALANCE SPRING
Raise the cutter deck to the transport position. Adjust
the spring length with the nuts on the eye-bolt, located
under the seat, to the following lengths for 3” cutting
Heights:
55” Deck - Spring Length of 10-1/2”
61” Deck - Spring Length of 11”
73” Deck - Spring Length of 11”
For lower cutting height, loosen spring at 1/4” intervals
until stop hits adjusting pin in correct height location. If
deck floats, loosen spring at 1/4” interval until deck
stops floating. (Measure from inside of hook to inside of
hook)
WARNING
TO AVOID SERIOUS BURN INJURIES:
l ALLOW ENGINE, OIL AND HYDRAULIC FLUIDS TO COOL BEFORE SERVICING TRANSMISSION OR ENGINE SYSTEM
CAUTION
TO AVOID CLEANING SOLVENT FIRES:
l AVOID USING FLAMMABLE SOLVENTS.
l AVOID AREAS WITH IGNITION SOURCES
WHEN USING FLAMMABLE SOLVENTS.
18
the reservoir will drop and bubbles may appear in the
fluid. Refill the reservoir as necessary.
WARNING
HIGH PRESSURE HYDRAULIC FLUID LEAKS
CAN PENETRATE SKIN CAUSING SERIOUS INJURY AND GANGRENE.
INJECTED FLUID MUST BE SURGICALLY REMOVED WITHIN A FEW HOURS BY A DOCTOR
FAMILIAR WITH THIS TYPE OF INJURY.
Place the steering levers in the neutral position and
open the bypass valve. Slowly move the steering
levers in both the forward and reverse directions to
purge the air from the closed circuit.
TO AVOID SERIOUS INJURY FROM
PRESSURE LEAKS:
l USE CARDBOARD AND NOT HANDS TO
SEARCH FOR LEAKS.
l RELIEVE HYDRAULIC PRESSURE BEFORE
WORKING ON SYSTEM.
l CHECK HYDRAULIC HOSES, LINES, AND
CONNECTIONS FOR TIGHTNESS AND
GOOD CONDITION BEFORE APPLYING
SYSTEM PRESSURE.
Close the bypass valve and run the unit in both directions for several minutes until any remaining air is
purged from the unit. Refill the reservoir as necessary.
Stop the engine, check for and correct any fluid leaks,
and check the reservoir level. Add fluid if necessary.
The transmission is now ready for operation.
HYDROSTATIC MAINTENANCE
Check the reservoir daily for proper fluid level. Oil level
should be to the bottom of the slot on the reservoir baffle.
START-UP MAINTENANCE
HYDROSTATIC FLUID
The pump and motor units normally do not require regular fluid changes. The system filter should be changed
after the first 50 hours of break-in, then every 500 hours
thereafter. The fluid and filter should be changed and
the system cleaned if the fluid becomes contaminated
with foreign matter (water, dirt, etc.).
Bush Hog recommends the use of 20W50 motor oil in
the hydrostatic reservoir.
START-UP PROCEDURE
WARNING
PARKING BRAKE ADJUSTMENT
TO AVOID INJURY FROM EQUIPMENT GROUND
TRAVEL AND MOVEMENT DURING
START-UP PROCEDURE:
DO NOT START OR JOG ENGINE UNTIL:
l PUMP IS IN NEUTRAL POSITION
l DRIVE WHEELS ARE RAISED OFF THE
GROUND.
l EQUIPMENT IS SECURELY BLOCKED-UP TO
KEEP WHEELS FROM GROUND CONTACT.
l PTO AND OTHER WORK FUNCTIONS ARE
DISCONNECTED.
l KEEP HANDS, HAIR AND CLOTHING AWAY
FROM ROTATING BLADES.
Check to make sure brake is adjusted properly.
Force on the brake handle to lock the brake in place
should be 30 pounds. To adjust the brake tension,
shorten or lengthen the horizontal brake linkage.
If further adjustment is needed at each individual wheel
brake:
1. Engage the brake lever (lever up).
2. Remove the wheel from the side needing adjusting.
3. With the brake engaged the spring length should be
3-1/2” (measured to the inside of the spring loops).
The following start-up procedure should always be followed when starting a new installation or when restarting and installation in which the pump or motor has
been removed from the system.
4. If the spring length is different, shorten or lengthen
the vertical brake linkage.
Prior to starting the pump, make certain all system
components (reservoir, fittings, etc.) are clean prior to
filling with fluid.
5. Reinstall the wheel and torque the lug nuts.
Fill the reservoir with recommended fluid which should
be filtered prior to entering the reservoir.
1. Stop engine and remove key.
Pump Drive Belt Tension Adjustment
2. The pump drive belt tension is adjusted through a
spring loaded idler pulley.
Start the engine and idle at the lowest possible RPM.
3. Adjust the eye bolt so the spring length is 6” (measured to the inside of the spring loops).
With the bypass valve closed, slowly move the displacement control in both the forward and reverse directions. As air is purged from the unit, the oil level in
19
TROUBLESHOOTING CHECK LIST
1. ENGINE IDLES POORLY:
Carburetor maladjustment
Improper spark plug gap
readjust carburetor
check and re-gap plug
2. ENGINE BACKFIRES:
Carburetor maladjustment
readjust carburetor
3. ENGINE RUNS BUT POWER UNIT WON’T MOVE FORWARD
Drive belt loose or broken
Pump shift arm disconnected
Hydrostatic reservoir oil low
Pump bypass valve open
Hydrostatic oil filter plugged
Bad pump or motor
re-tension or replace
reconnect
add oil
put in closed position
replace filter
consult dealer
4. POWER UNIT LOSES POWER OR HYDROSTAT SYSTEM OVERHEATS
Hydrostatic oil reservoir too low
add oil
Pump or motor damaged
consult dealer
Hydrostatic oil reservoir blowing oil out cap
overfilled or water contaminated
5. ENGINE STALLS WHEN BLADES ARE ENGAGED
Operator not on seat
Faulty interlock system
Bad blade spindle bearing
Deck drive belt not properly routed
Blades blocked by foreign material
sit on seat
consult dealer
consult dealer
reroute
clean under deck
•See engine manual for engine adjustments
ENGINE ELECTRICAL TROUBLE
POOR CUTTING PERFORMANCE
1. ENGINE WILL NOT TURN OVER:
Dead battery
Bad ground connection
Bad terminal connection at battery
Wiring harness plugs are not attached properly
at the key switch or the PTO switch
Bad parking brake switch
Bad PTO switch
* ENGINE SPEED IS TOO SLOW:
2. ENGINE WILL TURN OVER,
BUT WILL NOT START:
A. If there is spark at the plug:
No fuel
Bad fuel solenoid in engine
B. If there is no spark at the plug:
Make sure safety interlock system is sequenced:
PTO switch is off
Control levers in neutral position
Parking brake is on
Operator in seat
Check safety interlock switches:
Seat switch
Neutral switch
Bad ignition module on engine
Always mow at full throttle.
*
BELT SLIPPAGE:
Tighten deck adjusting spring to 7-1/2”.
*
DECK IS PLUGGED WITH GRASS:
Clean underneath the mower.
*
BLADES ARE NOT SHARP:
Sharpen the blades or replace.
*
CUTTING HEIGHT:
Normal mowing - cut only 1/3 of the grass blade.
*
FINISHED CUT IS UNEVEN:
Groundspeed is too fast.
*
BLADES ARE WORN DOWN TOO FAR:
Replace your blades.
20
SECTION IV
ASSEMBLY
ROPS shown installed to fold
forward for use with a canopy.
MOUNTING THE CONTROL LEVERS
Mount the control levers to the 3/4” x 3/4” square bars
positioning the control levers to the preferred height
and mount with 3/8” x 1” fasteners, lock washers, and
flat washers. Move the control levers forward or rearward for operator comfort.
Control
Levers
ROPS
Mount the ROPS frame to the formed channels with
the 1/2” x 4-1/4” fasteners and locknuts. NOTE: If
mounting a canopy position the upper structure to fold
to the front. If a canopy will not be mounted position
the upper structure to fold toward the rear.
Seat and Seat Frame Assembly
MOUNTING THE SEAT
Mount the seat and seat frame assembly to the mainframe using the capscrew and nut installed in the seat
hinge tubes. Attach the seat stop to the seat. Attach
seat safety wire to switch under the seat.
Seat
Stop
Battery
BATTERY
Attach the positive lead to the battery.
Additional wire tie straps are shipped to secure the
wiring harness as needed.
Seat Frame
Retaining Pins
Seat
Safety Wire
Seat
Belt
PIVOTING FRONT AXLE SETTINGS
Front Axle Pivot
Locking Pins Set To
Allow Axle To Pivot
The Bush Hog pivoting front axle increases operator
comfort, traction, mower life and improves the quality
of cut. In conditions where the terrain is extremely uneven, better cutting performance may be achieved by
locking the axle in a fixed position. This is easily done
by moving the locking pins to the outer positions.
ITEMS TO CHECK:
Check oil level in the engine (see engine manual)
Check the fluid level in the hydrostatic oil reservoir.
Check tightness of all fasteners, including bolts, lug
nuts, and setscrews.
Check tire pressure.
21
KAWASAKI ENGINE WIRING HARNESS
* NOTE: Use a 30 Amp fuse with linear actuator.
*
22
KOHLER ENGINE WIRING HARNESS
25 HP & 30HP MODELS
23
* NOTE: Use a 30 Amp fuse with linear actuator.
*
KOHLER ENGINE WIRING HARNESS
28 HP EFI ENGINE
24
* NOTE: Use a 30 Amp fuse with linear actuator.
*
SAFETY DECALS
To promote safe operation, Bush Hog supplies safety decals on all products manufactured. Because damage can
occur to safety decals either through shipment, use or reconditioning, Bush Hog will, upon request, provide safety
decals for any of our products in the field at no charge. Contact your authorized Bush Hog dealer for more information.
DANGER
KEEP AWAY!
SHIELD MISSING FROM THIS AREA
TO AVOID SERIOUS INJURY OR DEATH, DO
NOT OPERATE WITHOUT THIS AND ALL
OTHER SHIELDS IN PLACE AND IN GOOD
CONDITION.
823324
WARNING
ROTATING DRIVE PARTS BENEATH
• ENTANGLEMENT WITH ROTATING DRIVE
PARTS CAN CAUSE INJURY OR DEATH.
• DO NOT OPERATE WITHOUT THIS AND
ALL OTHER SHIELDS IN PLACE AND IN
GOOD CONDITION.
50012615
¥
¥
SERIOUS INJURY
OR DEATH MAY
RESULT FROM
MACHINE ROLLOVER
st
¥
¥
¥
¥
¥
¥
Failure to follow these
instructions could result
in serious injury or death.
Do not operate machine on
eep slopes or near drop offs.
Avoid sharp and/or quick turns.
Do not exceed the machine
weight rating of the rops.
Always use seat belt.
Do not jump if machine tips.
If ROPS is foldable
keep the ROPS fully extended.
¡ Always
ROPS MUST BE DOWN
¡ WHEN
not use seat belt.
¡ Do
Drive with extra care.
¡
If equipped with seat platform,
Do not operate machine without
seat platform pins in place.
50048632
25
WARNING
TO AVOID SERIOUS INJURY OR DEATH
DO NOT OPERATE MOWER WITHOUT DISCHARGE SHIELD
OR DEFLECTOR IN PLACE AND GOOD REPAIR.
83056
WARNING
TO AVOID SERIOUS INJURY OR DEATH,
H READ OPERATOR’S MANUAL BEFORE
OPERATING & FOLLOW ALL PRECAUTIONS.
(CONTACT DEALER FOR MANUALS)
H KEEP SHIELDS AND GUARDS IN PLACE.
KEEP CLEAR OF DRIVES AND BELTS.
H LOWER IMPLEMENT, STOP ENGINE AND
REMOVE KEY BEFORE DISMOUNTING.
H SECURELY SUPPORT MOWER &
REMOVE KEY BEFORE WORKING
UNDERNEATH.
H NO RIDERS. DO NOT OPERATE MOWER IN
VICINITY OF OTHER PERSONS.
H KNOW HOW TO STOP TRACTOR AND
EQUIPMENT QUICKLY IN AN
EMERGENCY.
H ALLOW NO CHILDREN OR UNQUALIFIED
PERSONS TO OPERATE EQUIPMENT.
H BE CAREFUL ON UNEVEN TERRAIN.
DECREASE SPEED WHEN TURNING.
H CLEAR MOWING AREA OF DEBRIS.
94134
26
TORQUE SPECIFICATIONS
Proper toque for American fasteners used on Bush Hog equipment.
Recommended Torque in Foot Pounds (Newton Meters).*
AMERICAN
Bolt Head Markings
SAE Grade 2
(No Dashes)
SAE Grade 5
(3 Dashes)
lt
”
Bo r “B
te
e
m
Dia
Wrench
Size “A”
SAE Grade 8
(6 Dashes)
METRIC
WRENCH
SIZE (IN.) “A”
BOLT DIAMETER
(IN.) “B” AND
THREAD SIZE
SAE
GRADE 2
7/16
1/4 2O UNC
7/16
1/4 28 UNF
1/2
SAE
GRADE 8
6 (7)
8 (11)
12 (16)
6 (8)
10 (13)
14 (18)
5/16 18 UNC
11 (15)
17 (23)
25 (33)
1/2
5/16 24 UNF
13 (17)
19 (26)
27 (37)
9/16
3/8 16 UNC
20 (27)
31 (42)
44 (60)
9/16
3/8 24 UNF
23 (31)
35 (47)
49 (66)
5/8
7/16 14 UNC
32 (43)
49 (66)
70 (95)
5/8
7/16 20 UNF
36 (49)
55 (75)
78 (106)
3/4
1/2 13 UNC
49 (66)
76 (103)
106 (144)
3/4
1/2 20 UNF
55 (75)
85 (115)
120 (163)
7/8
9/16 12 UNC
70 (95)
109 (148)
153 (207)
7/8
9/16 18 UNF
79 (107)
122 (165)
172 (233)
15/16
5/8 11 UNC
97 (131)
150 (203)
212 (287)
15/16
5/8 18 UNF
110 (149)
170 (230)
240 (325)
1 1/8
3/4 10 UNC
144 (195)
266 (360)
376 (509)
1 1/8
3/4 16 UNF
192 (260)
297 (402)
420 (569)
606 (821)
1 5/16
7/8 9 UNC
166 (225)
430 (583)
1 5/16
7/8 14 UNF
184 (249)
474 (642)
668 (905)
1 1/2
1 8 UNC
250 (339)
644 (873)
909 (1232)
1 1/2
1 12 UNF
274 (371)
705 (955)
995 (1348)
1 1/2
1 14 UNF
280 (379)
721 (977)
1019 (1381)
1 11/16
1 1/8 7 UNC
354 (480)
795 (1077)
1288(1745)
1 11/16
1 1/8 12 UNF
397 (538)
890 (1206)
1444 (1957)
1 7/8
1 1/4 7 UNC
500 (678)
1120 (1518)
1817 (2462)
1 7/8
1 1/4 12 UNF
553 (749)
1241 (1682)
2013 (2728)
2 1/16
1 3/8 6 UNC
655 (887)
1470 (1992)
2382 (3228)
2 1/16
1 3/8 12 UNF
746 (1011)
1672 (2266)
2712 (3675)
2 1/4
1 1/2 6 UNC
870 (1179)
1950 (2642)
3161 (4283)
2 1/4
1 1/2 12 UNF
979 (1327)
2194 (2973)
3557 (4820)
”
lt
Bo er “B
t
e
iam
D
Wrench
Size “A”
SAE
GRADE 5
8.8
Numbers appearing on bolt heads
indicate ASTM class.
*Use 75% of the specified torque value for plated fasteners. Use 85% of the specified torque values for lubricated fasteners.
Proper torque for metric fasteners used on Bush Hog equipment.
Recommended torque in foot pounds (newton Meters).*
WRENCH
SIZE
(mm) “A”
8
BOLT
DIA.
(mm) “B”
5
ASTM
4.6
1.8 (2.4)
ASTM
8.8
ASTM
9.8
5.1 (6.9)
ASTM
10.9
6.5 (8.8)
11.1 (15)
10
6
3 (4)
8.7 (12)
13
8
7.3 (10)
21.1 (29)
27 (37)
16
10
14.5 (20)
42 (57)
53 (72)
18
12
25 (34)
74 (100)
73 (99)
93 (126)
21
14
40 (54)
118 (160)
116 (157)
148 (201)
181 (245)
24
16
62 (84)
167 (226)
30
20
122 (165)
325 (440)
33
22
443 (600)
611 (828)
36
24
211 (286)
563 (763)
778 (1054)
41
27
821 (1112)
1138 (1542)
46
30
418 (566)
1119 (1516)
1547 (2096)
27
230 (312)
449 (608)
PROFESSIONAL SERIES
ZERO TURN RIDING MOWERS
Optional Equipment:
Caster Bundle (Available for 61” deck only)
Canopy Kit
Light Kit
Electric Actuator Bundle
Rear Hitch Kit
Mulching Kit 61”
Mulching Kit 55”
Striping Kit
Grass Catcher 55” & 61”
28
SLOPE ANGLE GUIDE
ALIGN THIS EDGE WITH A VERTICAL SURFACE
(TREE. BUILDING, FENCE POST. POLE, ETC.)
THIS
IS
10° SLO
PE
A
1
5
° SL
OPE
THIS IS
A
THIS IS A 5° S
LOPE
FOLD ALONG APPROPRIATE LINE
EXAMPLE: COMPARE
SLOPE WITH FOLDED
EDGE
29
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.
x
Keep children away from danger all day, every day...
x
Equip tractors with rollover protection (ROPS) and keep
all machinery guards in place...
x
Please work, drive, play and live each day with care
and concern for your safety and that of your family and
fellow citizens.
PROFESSIONAL SERIES
ZEROTURN RIDING MOWER
PZ -SOM - 04/11
Printed U.S.A.
P/N 50045565
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