Bush Hog 5045 Compact Loader User Manual

BUSH HOG
®
Front End Loaders
3545 / 4045 / 5045 / 6045
Operator’s Manual
ASSEMBLY ● OPERATION ● MAINTENANCE
707
$4.00
50048390
CONGRATULATIONS!
You have invested in the best implement of its type on the market today.
The care you give your Bush Hog implement 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 implement 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.
3545 / 4045 / 5045 / 6045
TABLE OF CONTENTS
SECTION/PARA
I
II
SECTION/PARA
PAGE
PAGE
Warranty .....................................................................2
Dealer Preparation Check List....................................3
Safety Alert Symbols ..................................................4
Safety Precautions .....................................................5
Federal Laws & Regulations.......................................7
3-12 Removing Air From Hydraulic System ...............15
3-13 Hose Identification............................................15
INTRODUCTION & DESCRIPTION ...........................8
1-1 Introduction...........................................................8
1-2 Description ...........................................................8
3-17 Transporting .....................................................21
3-14 Bucket Level Indicator Rod ..............................15
3-15 Bale Spear Operation.......................................20
3-16 Fork Lift Operation............................................21
3-18 Skid Steer Quick Hitch Operation.....................22
IV
MAINTENANCE .....................................................23
4-1 Maintenance Check List ....................................23
4-2 Lubrication .........................................................23
4-3 Hydraulic System
Pressure Requirements .....................................24
4-4 Troubleshooting .................................................24
V
ASSEMBLY ..............................................................26
LOADER MOUNTING & DISMOUNTING ................10
2-1 Preparing Tractors..............................................10
2-2 Mounting Loader ................................................10
2-3 Dismounting Loader ..........................................12
III OPERATING INSTRUCTIONS ................................13
3-1 General Safety ...................................................13
3-2 Pre Operation .....................................................13
3-3 Initial Loader Operation ......................................13
3-4 External Loader and/or Tractor Valve ................14
3-5 Loader Mounted or Tractor Mounted
Single Lever Control Handle.....................................14
3-6 Loader Mounted Series Control Valve With Single
Lever Control Handle................................................14
3-7 Neutral Position ..................................................14
3-8 Float Position......................................................14
3-9 Regenerative Valve Position ..............................14
3-10 Load Sense Loader Valve ................................14
3-11 Loader Operation .............................................14
5-1 Tractor Preparation ............................................26
5-2 Tractor Ballast ....................................................27
5-3 Installation ..........................................................27
5-4 Hydraulic Hookup ...............................................27
5-5 Bucket Level Indicator Rod ................................27
5-6 Fork Lift Option...................................................28
5-7 Bale Spear Option ..............................................28
5-8 Optional Bucket Items ........................................29
Torque Specifications ...............................................30
Safety Decals ...........................................................31
OPTIONAL EQUIPMENT INSTRUCTIONS AT END OF MANUAL
NOTE: Some optional equipment information may not apply to your particular loader.
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.
1
LIMITED WARRANTY
✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯
Bush Hog warrants to the original purchaser of any new Bush Hog equipment, purchased from an
authorized 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.
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, POST OFFICE BOX 1039, SELMA,
ALABAMA 36702-1039.
✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯
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/
SELMA, ALABAMA
DATE OF RETAIL SALE
2
DEALER PREPARATION CHECK LIST
3545 / 4045 5045 / 6045
BEFORE DELIVERING MACHINE - The following check list should be completed.
Use the Operator’s Manual as a guide.
❏ Machine properly assembled.
❏ All safety decals readable. (See decal page)
❏ All bolts tightened to torque specifications given in torque chart.
❏ Machine operates properly.
❏ Customer has appropriate mounting kit for his tractor and loader.
❏ Customer has appropriate attachments for loader operations. ( Buckets for lifting loose
materials; bale spear for lifting round bales; fork lift for lifting palletized material)
CAUTION
USE ROPS (ROLLOVER PROTECTIVE STRUCTURE) AND
SEAT BELT EQUIPPED TRACTORS FOR OPERATOR USE
IN ALL LOADER OPERATIONS.
❏ Operators manual has been delivered to owner and he has been instructed on the safe
and proper use of the front end loader.
Dealer’s Signature
Purchaser’s Signature
THIS CHECK LIST TO REMAIN IN OPERATOR’S MANUAL
It is the responsibility of the dealer to complete the procedures listed
above before delivery of this implement to the customer.
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 death or 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 stor
age of equipment. Lack of attention to safety can result in accident, personal 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 man
ual for specific operating and maintenance procedures. Read this manual and review the safety precautions often until
you know the limitations.
THE TRACTOR
1. Read the tractor operator’s manual to learn how to operate your tractor safely. Failure to do so could result in serious injury or death and equipment damage.
2. Use ROPS (Roll-Over Protective Structure) and seat belt equipped tractors for operator use in all loader operations.
3. Add wheel ballast or rear weight for stability.
4. Move wheels to the tractor manufacturer’s widest recommended settings to increase stability.
5. For better stability, use tractor with wide front axle rather than tricycle front wheels.
6. Move and turn the tractor at low speeds.
7. Stop tractor engine, place transmission in park (or neutral), engage parking brake, lower loader arms to ground,
cycle all hydraulic controls to relieve pressure, allow machine moving parts to stop, remove ignition key to prevent
unauthorized person from starting engine before dismounting tractor or servicing, repairing, or making adjustments
to the equipment.
8. Wear personal protective equipment (PPE), such as, but not limited to, protection for eyes, ears, lungs, head, hands
and feet when operating, servicing, or repairing equipment. Avoid wearing loose clothing or jewelry that may catch
and entangle on equipment moving parts.
THE LOADER
1. Read the loader operator’s manual to learn how to operate your loader safely. Failure to do so could result in serious injury or death and equipment damage.
2. Become familiar with all the machine’s controls and all the caution, warning and danger decals affixed to the
machine before attempting to start or operate.
3. Improper use of a loader can cause serious injury or death.
4. Do not lift or carry anybody on the loader or in the bucket or attachment.
5. Never allow anyone to get under the loader bucket or reach through the booms when the bucket is raised.
6. Do not walk or work under a raised loader bucket or attachment unless it is is securely blocked or held in position
7. Avoid overhead wires and obstacles when loader is raised. Contacting electrical lines can cause electrocution.
8. Make sure all parked loaders on stands are on a hard, level surface.
9. Use a piece of cardboard or wood rather than hands and wear eye protection when searching for hydraulic leaks.
Escaping hydraulic oil under pressure can penetrate skin. If oil is injected into skin, it must be surgically removed
within a few hours by a doctor or gangrene may result.
5
SAFETY PRECAUTIONS CONTINUED
10. Before disconnecting hydraulic lines, relieve all hydraulic pressure.
11. Do not tamper with the relief valve setting. The relief valve is pre-set at the factory. Changing the setting can
cause overloading the loader and tractor and serious operator injury may result.
12. Always wear safety goggles when repairing or servicing machine.
13. When servicing or replacing pins in cylinder ends, buckets, etc., always use a brass drift and hammer. Failure to
do so could result in injury from flying fragments.
14. Replace damaged or illegible safety decals. See decal page for required decals.
15. Do not modify or alter or permit anyone else to modify or alter the loader, any of its components or any loader
function without first consulting your local dealer.
OPERATING THE LOADER
1.
It is the loader owner’s responsibility to instruct and have a person read operator’s manual, safety decals and
become familiar with machine controls before allowing them to operate loader.
2.
Do not allow children to operate the loader.
3.
Before starting or operating the equipment, make a walk around inspection and check for loose or damaged
components. Correct any deficiency before starting.
4.
Keep the area of operation clear of all persons, particularly small children. The operator should cease operation
whenever anyone comes within the operating area.
5.
Operate the loader from the “Operator’s Seat Only.”
6.
Exercise caution when operating the loader with a raised loaded bucket, fork, or large round hay bale handling
attachments.
7.
Avoid loose fill, rocks and holes. They can be dangerous for loader operation or movement.
8.
Be extra careful when working on inclines.
9.
Allow for the loader length when making turns.
10. Stop the loader arms gradually when lowering or lifting.
11. Use caution when handling loose or shiftable loads.
12. Carry loader arms at a low position during transport.
13. Lower loader arms, stop engine, and lock brakes before leaving the tractor seat.
14. Operate the loader controls only when properly seated at the controls.
15. Do not use loader for handling large, heavy objects such as logs, oil drums, etc.
16. Handling large, heavy objects is dangerous due to:
*Possibility of rolling the tractor over.
*Possibility of upending the tractor.
*Possibility of the object rolling or sliding down the loader arms onto the operator.
17. Use large round hay bale handler attachment with bale retaining devices (grapples, bale spears, clamps, etc.) to
handle large round hay bales. Failure to use retaining devices could allow round hay bales to roll or fall down
loader boom arms onto the operator causing serious injury or death and equipment damage.
6
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.
EMPLOYEE TRACTOR OPERATING INSTRUCTIONS:
1. Securely fasten your seat belt if the tractor has a
ROPS.
5. Watch where you are going, especially at row
ends, on roads, and around trees.
2. Where possible, avoid operating the tractor near
ditches, embankments, and holes.
6. Do not permit others to ride.
7. Operate the tractor smoothly - no jerky turns,
starts, or stops.
3. Reduce speed when turning, crossing slopes, and
on rough, slick, or muddy surfaces.
8. Hitch only to the drawbar and hitch points recommended by tractor manufacturers.
4. Stay off slopes too steep for safe operation.
9. When tractor is stopped, set brakes securely and
use park lock if available.
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.)
7
SECTION I
INTRODUCTION AND DESCRIPTION
Figure 1-1 Major Components
Bucket Level
Indicator Rod
Bucket Cylinder
Cross Tube
Bucket
Pedestal
Mainframe Boom
Parking Stands Stored
Boom Cylinder
1-1 INTRODUCTION
1-2 DESCRIPTION
We are pleased to have you as a Bush Hog customer. Your Front End Loader 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 front end loader 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 implement. If any assistance or additional information is needed, contact your authorized
Bush Hog dealer.
Model 3545/4045/5045/6045 Front End Loaders are
designed for two wheel and four wheel drive tractors. They come equipped with parking stands to
support the loader so the tractor can be “driven in”
for quick attachment and a bucket level indicator that
allows operator to gauge bucket position when the
bucket cannot be seen. Available attachments
include buckets for lifting loose materials; a bale
spear for lifting round hay bales; and a fork lift for
palletized material. All operations should be conducted within the loader limits specified in Table 1-1.
8
Table 1-1 TECHNICAL SPECIFICATIONS
VV
U
D
V
E
XX
B
J
A
C
X
W
G
ZZ
F
Y
H
SERIES LOADER
3545
4045
5045
Z
6045
A.
Maximum Lift Height - Measured at Pivot Pin
120”
126”
133”
153”
B.
Maximum Lift Height - Under Level Bucket
110”
116”
123”
144”
C.
Clearance with Attachment Dumped 45° 92 in.
90”
97”
105
125”
D.
Reach at Maximum Height
23”
36”
30”
30”
E.
Maximum Dump Angle
F.
Reach with Bucket on Ground
G.
Maximum Rollback Angle
H.
Digging Depth
45°
45°
45°
42°
77 in.
78 in.
75”
83”
25°
25°
25°
25°
3.5 in.
3.5 in.
7”
6”
J.
Overall Height in Carry Position
52 in.
63 in.
66”
76”
U.
Lift Capacity to Maximum Height - At Pivot Pin
3000 lbs.
3500 lbs.
4000 lbs.
4950 lbs.
V.
Lift Capacity to Maximum Height - 31.5”
Forward of Pivot Pin
1950 lbs.
2200 lbs
2560 lbs.
3075 lbs.
W.
Lift Capacity to 59” Height - At Pivot Pin
3900 lbs.
4100 lbs.
5000 lbs.
6500 lbs.
2500 lbs.
2950 lbs.
3500 lbs.
4325 lbs.
X.
Lift Capacity to 59” Height - 31.5”
Forward of Pivot Pin
Y.
Breakout Force - At Pivot Pin
4300 lbs.
5000 lbs.
6000 lbs.
8450 lbs.
Z.
Breakout Force - 31.5” Forward of Pivot Pin
2750 lbs.
3500 lbs.
4280 lbs.
5400 lbs.
VV. Rollback Force at Maximum Height 31.5” Forward of Pivot Pin
3550 lbs.
5100 lbs.
4800 lbs.
5820 lbs.
XX. Rollback Force at 59” Height 31.5” Forward of Pivot Pin
4050 lbs.
5300 lbs.
5600 lbs.
6180 lbs.
ZZ. Rollback Force at Ground Level 31.5” Forward of Pivot Pin
3550 lbs.
3600 lbs.
3750 lbs.
3840 lbs.
Raising Time - Ground Level to Full Height
5 sec.
5 sec.
5 sec.
9 sec.
Lowering Time - Full Height to Ground
4 sec.
3 sec.
3 sec.
6 sec.
Bucket Dumping Time - Full Rollback
to Full Dump
5 sec.
5 sec.
5 sec.
6 sec.
Bucket Rollback Time - Full Dump
to Full Rollback
3 sec.
3 sec.
3 sec.
4 sec.
40 - 60
2 & 4 WD
40 - 70
2 & 4 WD
60 - 90
2 & 4 WD
70 - 110
2 & 4 WD
2850 psi
11 gpm
2850 psi
11 gpm
2850 psi
16 gpm
2850 psi
29 gpm
Tractor HP Range
Based On Tractor Hydraulic System:
Pressure
Flow
9
SECTION II
LOADER MOUNTING AND DISMOUNTING
2-1 PREPARING TRACTOR
Figure 2-1
CAUTION
TRACTORS THAT HAVE MOVABLE AXLES
MUST BE SET FORWARD IN THE LONG WHEELBASE POSITION AS SHOWN IN FIGURE 2-1 TO
PREVENT EXCESSIVE LEVERAGE BEING
EXERTED ON THE TRACTOR FRAME. FAILURE
TO DO SO CAN RESULT IN PERSONAL INJURY
AND EQUIPMENT DAMAGE. REFER TO TRACTOR OPERATOR’S MANUAL FOR ABOVE PROCEDURES AND SPECIFICATIONS FOR YOUR
TRACTOR.
Short Wheelbase
A. Check air pressure in tractor tires to be sure it
is adequate for heavy loads.
B. Add rear wheel weights, fluid in tires, or equivalent to provide sufficient tractor stability.
C. It is recommended that tractor wheels be
moved to the widest settings.
D. Check tractor hydraulic oil reservoir to be sure
it is full.
E. Refer to your tractor operator’s manual for
above procedures and specifications for your tractor.
Long Wheelbase
Figure 2-2
Apply Grease To These Areas
2-2 MOUNTING LOADER
To aid in mounting and dismounting loader, apply a
small amount of grease, if needed, to each loader
bracket in area of top receiver and guide. Figure 2-2.
A. Slowly drive tractor to a position where the
hoses can be connected to the quick couplers. Stop
the engine. Connect the loader hydraulic hoses to
the correct couplers. Figure 2-3.
B. Retract Loader Lift Cylinders. Figure 2-3.
Figure 2-3 Drive In Close Enough To Alllow Connecting Hydraulic Hoses To Tractor Outlets
10
C. Check that lift cylinders are fully retracted.
Figure 2-3. Then drive tractor forward. Use bucket
cylinders to position height of outer pedestal top pin.
Figure 2-4.
Figure 2-4
Figure 2-6
Pin In Operating Position
Outer Pedestal Top Pin
H. Remove parking stands from the parked position and return them to their storage positions in the
cross tube. Figure 2-7
Figure 2-7 Storing Parking Stand
D. Align outer pedestal top pin with mounting
bracket guide post on both sides. Make sure loader
is centered right to left on both brackets.
E. Extend the bucket cylinders to lower the
pedestal top pins into mounting bracket receivers on
both sides.
F. Extend lift cylinders slowly making sure loader
is seated completely in mounting bracket top and
bottom receivers. Retract bucket cylinder until bucket is approximately 1/2” off ground.
G. Slide quick pin into position and let pin handle
extend downward through the retaining loop at the
bottom of the subframe. Figures 2-5 and 2-6
Secure parking stands in the storage position by
using the provided pins. Figure 2-8
Figure 2-5 Quick Pin
Figure 2-8 Parking Stand Stored
I. Lower loader to ground and secure loader
hydraulic hoses in a protected area.
IMPORTANT
To avoid hydraulic hose damage, be alert and
make sure hoses do not catch on tractor and/or
loader during mounting or dismounting.
11
2-3 DISMOUNTING LOADER
Figure 2-9 Parking Stand Installed
CAUTION
ALWAYS PARK LOADER WITH MATERIAL BUCKET OR AUTHORIZED BUSH
HOG ATTACHMENT ATTACHED TO THE
LOADER.
CAUTION
BEFORE LEAVING THE TRACTOR SEAT,
LOWER ATTACHMENT OR LOADER
BOOM TO GROUND, STOP ENGINE,
LOCK BRAKES, RELIEVE HYDRAULIC
PRESSURE, AND REMOVE KEY.
CAUTION
DO NOT STAND, WALK, OR WORK UNDER
A RAISED LOADER OR ATTACHMENT
UNLESS IT IS SECURELY BLOCKED OR
HELD IN POSITION. ACCIDENTAL MOVEMENT OF A CONTROL LEVER/LEVERS OR
LEAKS IN THE HYDRAULIC SYSTEM
COULD CAUSE THE LOADER TO DROP,
OR ATTACHMENT TO DUMP, CAUSING
SEVERE INJURY.
CAUTION
DO NOT ALLOW BYSTANDERS IN LOADER
AREA.
Attaching Bracket
IMPORTANT
Never allow weight of tractor to be placed on
parking stands when mounting or dismounting
loader.
Long End Positioned Rearward
G. Retract loader lift cylinders
H. Slowly rollback bucket while driving slightly
forward with tractor. Doing this will allow mounting
brackets to guide loader as loader is being parked
off of tractor.
I. Rollback bucket completely. Make sure all loader
components clear tractor. Stop the tractor engine and
then work valve control lever/levers to relieve hydraulic
fluid pressure in lines. Refer to tractor operator manual
for additional information.
J. Disconnect loader hoses from quick couplers.
Start tractor and slowly back tractor away from loader.
Figures 2-10, 2-11, 2-12
A. Position the loader on a hard level surface.
The more level the surface, the easier the loader is
to mount and dismount.
B. Raise loader, dump bucket over, and then
lower loader so that bucket cutting edge is approximately 1/2” off of surface.
C. Remove parking stands from their storage
positions in the boom crosstube as shown in Figure
2-8.
D. Position parking stands in attaching brackets
on inside of each loader arm and secure. Figure 2-9.
E. Dismounting procedures will be the reverse of
the mounting procedure.
F. Rollback bucket slightly while lowering loader
boom down until the parking stands make firm contact with ground. Dump bucket until bucket touches
the surface.
NOTE
Driving the tractor forward slowly while positioning loader will allow parking stands to contact
ground firmly.
Figure 2-10 Hydraulic Hoses - Quick Couplers
12
WARNING
MAKE SURE PARKED LOADER IS ON A
HARD LEVEL SURFACE. ENGAGE ALL
SAFETY DEVICES TO PREVENT LOADER
FROM FALLING AND BEING DAMAGED
OR INJURING SOMEONE. DO NOT REPAIR
LOADER IF IT IS NOT MOUNTED ON THE
TRACTOR. LOSS OF HYDRAULIC FLUID
OR REMOVAL OF PARTS COULD CAUSE
LOADER TO COLLAPSE RESULTING IN
INJURY.
IMPORTANT
To avoid hydraulic hose damage, be alert
and make sure hoses do not catch on tractor and/or loader during mounting or dismounting.
Figure 2-11 Preparing To Disconnect Hydraulics
Figure 2-12 Tractor Backed Away From Loader
SECTION III
OPERATING INSTRUCTIONS
WARNING
3-1 GENERAL SAFETY
ESCAPING HYDRAULIC FLUID UNDER
PRESSURE CAN HAVE SUFFICIENT
FORCE TO PENETRATE SKIN, CAUSING
SERIOUS PERSONAL INJURY. BEFORE
APPLYING PRESSURE TO SYSTEM, BE
SURE ALL CONNECTIONS ARE TIGHT
AND THAT LINES, TUBES, AND HOSES
ARE NOT DAMAGED. FLUID ESCAPING
FROM A VERY SMALL HOLE CAN BE
ALMOST INVISIBLE. USE A PIECE OF
CARDBOARD OR WOOD, RATHER THAN
HANDS, TO SEARCH FOR SUSPECTED
LEAKS. IF INJURED BY ESCAPING FLUID,
SEE A DOCTOR AT ONCE. SERIOUS
INFECTION OR REACTION CAN DEVELOP
IF PROPER MEDICAL TREATMENT IS NOT
ADMINISTERED IMMEDIATELY.
Only qualified people familiar with this operator’s
manual should operate this machine. Operator
should wear hard hat, safety glasses, and safety
shoes. The operator should read, understand and
practice all safety messages shown on the caution,
warning and danger decals affixed to the loader to
avoid serious injury or death. It is recommended that
tractor be equipped with Rollover Protective System
(ROPS) and a seat belt be used. Check for ditches,
stumps, holes or other obstacles that could upset
tractor or damage loader. Always turn off tractor
engine, set parking brake, and lower loader to
ground before leaving tractor operator’s seat.
3-2 PRE-OPERATION
IMPORTANT
Do not extend bucket cylinders without quick
hitch attachment installed on loader. Failure to
follow these instructions could cause bucket
cylinder damage and will void loader warranty.
NOTE
Check the tractor hydraulic fluid reservoir and
fill, if required.
3-3 INITIAL LOADER OPERATION
NOTE
Keep engine speed at low idle during the initial
loader operation.
13
3-7 NEUTRAL POSITION
3-4 EXTERNAL LOADER AND/OR TRACTOR VALVE.
The loader external valve provided by Bush Hog has
a “neutral position” which prevents movement of the
loader or attachment. When the control handle is
manually released from the work position, the valve
spool will return to the neutral position.
NOTE
When properly installed, the tractor remote valve
or external valve control lever/levers will control
the loader hydraulic circuits as described below.
Refer to tractor Operator’s Manual for further
explanation of tractor remote control
lever/levers.
3-8 FLOAT POSITION
IMPORTANT
Contaminants in hydraulic fluid can cause valve
spools to stick. BE ALERT when operating
loader and follow your tractor Operator’s Manual
hydraulic fluid maintenance schedule.
The loader external valve provided by Bush Hog has
a “float position” incorporated into the lift cylinder circuit which allows the loader to float. This float feature is important for satisfactory operation when
scraping, sweeping, leveling, or any job where it is
necessary to follow the contour of the surface. To
activate the float position, lower the bucket or attachment and push the control handle all the way forward into detent. The valve will stay in float detent
position until the operator manually pulls the control
handle out of detent position to deactivate float.
3-5 LOADER MOUNTED CONTROL
VALVE EQUIPPED WITH SINGLE LEVER
CONTROL HANDLE OR TRACTOR
REMOTE VALVE EQUIPPED WITH SINGLE LEVER CONTROL HANDLE
If your loader utilizes a loader control valve equipped
with single lever control handle or tractor remote
valve equipped with single lever control handle, it will
function as shown in Figure 3-1.
3-9 REGENERATIVE VALVE POSITION
When the handle is pushed all the way to the right,
it will go past the dump detent position into the
regenerative position. This position requires the
operator to hold it in place. This feature enhances
the performance and speed of the dump procedure.
Figure 3-1
3-10 LOAD SENSE LOADER VALVE
IMPORTANT
If your loader is equipped with a load sense type
control valve it may demonstrate the following
operation characteristic. Attempting to raise the
boom by finely feathering the control lever may
actually allow the boom to lower very slowly. To
prevent this from happening, move the control
lever far enough to ensure that the boom raises.
3-6 LOADER MOUNTED SERIES CONTROL VALVE EQUIPPED WITH SINGLE
LEVER CONTROL HANDLE
If your loader utilizes a loader mounted series control valve equipped with single lever control handle, it
will function as shown in Figure 3-2.
3-11 LOADER OPERATION
Before operating the loader, fully raise and lower the
boom three or four times. Then raise the loader
bucket approximately four (4) feet above the ground
and cycle the bucket two or three times. Lower the
bucket or attachment to the ground. Check the tractor hydraulic fluid level and fill as required. Refer to
the tractor Operator’s Manual for the proper
hydraulic fluid and the correct hydraulic fluid level.
Figure 3-2
14
Figure 3-3
Bucket Level Indicator Rod Showing That The
Bucket Is Resting Flat On The Surface
CAUTION
BEFORE LEAVING THE TRACTOR SEAT,
LOWER ATTACHMENT OR LOADER BOOM
TO GROUND, STOP ENGINE, LOCK
BRAKES, RELIEVE HYDRAULIC PRESSURE, AND REMOVE KEY.
Rod Kink In Bracket Slot Indicator Rod
IMPORTANT
Always keep the cylinders in a retracted position
when the loader is not in use to guard against
rust and contamination which may cause damage to the cylinder rods and hydraulic system.
3-12 REMOVING AIR FROM HYDRAULIC
SYSTEM
Repeat raising and lowering the loader boom and
bucket operations until all the air is removed from
the system and the system responds properly.
3-13 HOSE IDENTIFICATION
Metal lines on the loader are color coded. Check
loader functions. Refer to instruction sheets for
hydraulic valve option on your loader.
3-14 BUCKET LEVEL INDICATOR ROD
A bucket level indicator rod (Figure 3-3), located on
the bucket cylinder, can be used to determine bucket
angle. Before beginning work, observe the position
of indicator rod with the bucket flat on the ground.
The “kink” in the indicator rod should be located in
the bracket slot. If the kink is not in centered in the
slot, readjust the bracket. Refer to the assembly
instructions. Raise boom to several different positions and operate the bucket cylinders. Observe the
indicator rod. Once familiar with the indicator rod
positions, operation of the loader will be easier and
more efficient.
The text and illustrations on the following pages
offer suggested loader and tractor operating
techniques.
Indicator Rod
Lower Mounting Location
15
FILLING THE BUCKET
Approach and enter the pile with a level bucket.
...a level bucket throughout the lifting cycle resists
bucket lift and increases breakaway effort.
NOTE; Do not be concerned if the bucket is not
completely filled during each pass. Maximum productivity is determined by the amount of material loaded
in a given period of time. Time is lost if two or more
attempts are made to fill the bucket on each pass.
Loaders with 1-lever control, ease lever back and
toward you to lift and rollback the bucket.
LIFTING THE LOAD
WARNING
DO NOT LIFT OR CARRY ANYONE IN THE
BUCKET OR ON ANY OTHER PORTION OF
THE LOADER OR LOADER ATTACHMENT.
INADVERTENT MOVEMENT OF THE
LOADER OR ATTACHMENT COULD
RESULT IN SERIOUS INJURY OR DEATH
FROM FALLING OR CRUSHING.
CAUTION
MAKE SURE MATERIAL IN BUCKET CANNOT ROLL OUT AND DOWN ON TRACTOR
WHEN BUCKET IS RAISED TO FULL
HEIGHT. KEEP CLEAR OF OVERHEAD
OBSTRUCTIONS SUCH AS TREES, LIMBS
OR POWER LINES WHEN RAISING THE
BUCKET
Loaders with 2-lever controls, ease both levers back
to lift and rollback the bucket.
When lifting the load, keep the bucket positioned to
avoid spillage.
The lift and rollback of the bucket will increase efficiency because...
CAUTION
DO NOT ATTEMPT TO LIFT BUCKET
LOADS IN EXCESS OF CAPACITIES
LISTED IN TABLE 1-1 TECHNICAL SPECIFICATIONS.
16
CARRYING THE LOAD
DUMPING THE BUCKET
Position the bucket as low as possible below the
level of the tractor hood for maximum stability and
visibility, whether the bucket is loaded or empty.
Lift the bucket high enough to clear the side of the
vehicle. Move the tractor in as close to the side of
the vehicle as possible, then dump the bucket.
Use extreme caution when operating the loader on a
slope and keep the bucket as low as possible. This
keeps the bucket and tractor center of gravity low
and will provide maximum tractor stability.
LOWERING THE BUCKET
After the bucket is dumped, back away from the
vehicle while lowering and rolling back the bucket.
CAUTION
FLOAT POSITION
OPERATING THE LOADER ON A HILLSIDE
IS DANGEROUS. EXTREME CARE IS
RECOMMENDED.
LOWER
DUMP
1-LEVER
CONTROL
ROLLBACK
DO THIS
RAISE
FLOAT POSITION
NOT THIS
DUMP
LOWER
When transporting the load, keep the bucket as low
as possible to avoid tipping, in case a wheel drops in
a rut.
2-LEVER
CONTROLS
NOT THIS
DO THIS
17
ROLLBACK
RAISE
OPERATING WITH FLOAT CONTROL
During hard surface operation, keep the bucket level
and put the lift control in the float position to permit
the bucket to float on the working surface. If
hydraulic down pressure is exerted on the bucket, it
will wear faster than normal.
FLOAT
Sidecutting is a good technique for cutting down a
big pile.
The float will also prevent the mixing of surface
material with stockpile material. The float position
will reduce the chance of surface gouging when
removing snow or other material.
If the piles are too high and liable to cause cave-in,
use the loader to break down the sides until a slot
can be cut over the top.
FLOAT
SURFACE MATERIAL
LOADING FROM A BANK
Choose a forward gear that provides sufficient
ground speed for loading
Another method for large dirt piles is to build a ramp
approach to the pile.
Exercise caution when undercutting high banks. Dirt
slides can be dangerous. Load from as low as possible for maximum efficiency. Loader lift and breakaway capacity diminish as loading height is
increased.
It’s important to keep the bucket level when
approaching a bank or pile. this will help prevent
gouging the work area.
18
PEELING AND SCRAPING
BACKFILLING
DO THIS
6”
Backgrade occasionally with a loaded bucket to
keep the working surface free of ruts and holes.
Hold the lift control forward in float position so the
full weight of the bucket is scraping the ground.
Use only the heel of the bucket while backgrading.
Use a slight bucket angle, travel forward, and hold the
lift control forward to start the cut. Make a short, angle
cut approximately 6” deep and break-out cleanly.
NOT THIS
With the bucket level, start a cut at the notch approximately 2” deep. Hold the depth by feathering the
bucket control to adjust the cutting lip up or down.
When the front tires enter the notch, adjust the lift
cylinder to maintain proper depth.
IMPORTANT: To prevent damage to cylinders:
(1) Do not backgrade with bucket cylinders extended.
(2) Always backgrade with valve in float position.
3RD CUT , 4TH CUT, ETC.
Approach the pile with a flat bucket.
DO THIS
Make additional passes until the desired depth is
reached. During each pass, only use the bucket control while at working depth. This will allow you to
concentrate on controlling the bucket angle to maintain a precise cut.
LOADING LOW TRUCKS OR SPREADERS FROM
A PILE
NOT THIS
Poor methods actually move no more dirt and make
it more difficult to hold a level grade.
Do not use the bucket in the dumped position
for bulldozing or backgrading. This method,
shown above, will impose severe shock loadings on the dump linkage, the bucket cylinder,
and the tractor.
For faster loading, minimize the angle of turn and
length of run between pile and spreader.
19
HANDLING LARGE HEAVY OBJECTS
WARNING
Do not use front end loaders for handling
large heavy objects such as logs or oil
drums. Handle large round hay bales only
when loader is equipped with Bush Hog
Bale Spear Attachment.
Handling large heavy objects can be
extremely dangerous due to:
Leave dirt in the bucket because dumping on each
pass wastes time.
★ Possibility of rolling the tractor over.
★ Possibility of upending the tractor.
★ Possibility of the object rolling or sliding
down the loader arms onto the operator.
DITCH
3-15 BALE SPEAR OPERATION
The bale spear (Figure 3-4) is intended for handling
large round bales. Before operation, set tractor
wheels to tractor manufacturer’s widest recommended settings and add ballast as necessary to provide
adequate stability for handling round bales. It is recommended that tractor be equipped with a ROPS
and seat belts. Approach bale from downhill side
with tractor in low gear. Run spears all the way
into bale with long spear as close to center as
possible. Lift bale just high enough for adequate
ground clearance to transport, maintaining good
visibility. Always carry load as low as possible
when transporting, for improved stability. Use
low gear on downhill grades. Unload round bales on
a level surface.
SOIL PILE
Operate at right angles to the ditch. Take as big a
bite as the tractor can handle without lugging down.
DITCH
Figure 3-4 Bale Spear
Leave dirt which drifts over the side of the bucket for
final clean-up.
Pile dirt on the high side for easier backfilling on a
slope.
Quick Hitch
20
Long Spear
Round Bale
3-16 FORK LIFT OPERATION
CAUTION
ALWAYS CHECK TO INSURE THAT QUICK
HITCH PINS ARE IN THE LATCHED POSITION BEFORE OPERATING LOADER OR
ACCINDENTAL DISENGAGEMENT OF THE
ATTACHMENT COULD RESULT.
WARNING
TO AVOID SERIOUS INJURY OR DEATH:
★ NEVER LIFT LARGE ROUND HAY
BALES OR OTHER LOADS ON THE
FORK LIFT ATTACHMENT THAT
COULD ROLL BACK ONTO TRACTOR OPERATOR AREA.
★ NEVER USE FORK LIFT ATTACHMENT TO LIFT OR SUPPORT
PEOPLE.
★ TRANSPORT LOADS LOW AND
SLOW.
★ AVOID CONTACT WITH POWER
LINES.
3-17 TRANSPORTING
When transporting on road or highway, day or night,
use tractor flashing warning lights unless prohibited
by law. Carry load as low as possible maintaining
adequate ground clearance and good visibility.
Reduce tractor ground speed when carrying a load.
Take extra care when traveling over rough terrain or
on slopes.
The fork lift attachment (Figure 3-5) is intended for
handling palletized material. It is recommended that
tractor be equipped with ROPS and seat belts. Use
the loader dump cylinders to give the forks the
desired tilt. Position the forks on their support rods to
the desired width so that the load will be carried
approximately equal on each fork. Position load as
far back as possible.
CAUTION
WHEN TRANSPORTING A LOAD, KEEP
THE ATTACHMENT AS LOW AS POSSIBLE
TO RESIST TIPPING IN CASE A WHEEL
DROPS IN A RUT.
Figure 3-5
Fork Lift Attachment
Adjustable Forks
21
3-18 SKID STEER QUICK HITCH OPERATION
Tilt quick hitch backward using bucket cylinder so
that bottom of attachment will swing into position.
The quick hitch (Figure 3-6) is designed to allow
easy mounting and dismounting of skid steer
attachments from loader. With attachment on flat,
level surface, mount as follows:
Rotate handles downward, locking spring-loaded pins
into place in slot on attachment hitch for operation.
To dismount the attachment:
Tilt quick hitch backward and rotate handles up to
disengage pins. Reverse the mounting procedure.
Tilt quick hitch slightly forward at top and slowly
drive into attachment.
Hook quick hitch under top cuff on attachment and
lift off ground using boom cylinders only.
Figure 3-6 A, B, C, & D
Quick Hitch Operation
CAUTION
ALWAYS CHECK TO INSURE THAT QUICK
HITCH PINS ARE IN THE LATCHED POSITION BEFORE OPERATING LOADER OR
ACCINDENTAL DISENGAGEMENT OF THE
ATTACHMENT COULD RESULT.
A.
Top Cuff
Quick Hitch Tilted Forward
Spring-Loaded
Pins Raised
B. Drive Into Attachment
C. Raise And Roll Back Attachment
22
D. Lower Spring-Loaded Pins
SECTION IV
MAINTENANCE
4-1 MAINTENANCE CHECK LIST
Figure 4-1
Mounting Kit
Perform scheduled maintenance as outlined below.
Lower machine to ground, turn off tractor, and set
parking brake before doing maintenance inspections
or work. All bolts should be torqued as recommended in torque chart unless otherwise indicated.
Apply Small Amount
Of Grease
WARNING
THE LOADER CAN FALL FROM
HYDRAULIC SYSTEM FAILURE. TO
AVOID SERIOUS INJURY OR DEATH,
SECURELY SUPPORT LOADER BEFORE
WORKING UNDERNEATH.
Check Torque On All
Mounting Hardware
4-2 LUBRICATION (Figure 4-2)
BEFORE EACH USE
1. Inspect hydraulic lines and fittings for wear or
leaks. Repair or replace if needed.
NOTE
The multi-purpose grease referenced in this section
is an NLGI grade 2 type grease.
2. Inspect all pivot pins for wear. Make certain car
riage bolts, lockwashers and hex nuts are
installed to retain each pivot pin.
BEFORE EACH USE
1. Pivot Pins - Apply multi-purpose grease to
each fitting.
2. Hydraulic Oil - Cycle boom and bucket cylinders
2 or 3 times before each use, then check
hydraulic oil level in tractor reservoir.
3. Check all bolts for tightness.
4. Perform BEFORE EACH USE lubrication per
paragraph 4-2.
5. During operation, listen for abnormal sounds
which might indicate loose parts or other damage.
AFTER EACH USE
1. Clean all debris from machine, especially cylinder
rods and affixed safety decals. Replace any
missing or illegible decals.
2. Inspect loader for worn or damaged components.
Repair or replace before next use. Any replacement components installed during repair shall
include the components’ current safety decals
specified by the manufacturer to be affixed to the
component.
CAUTION
USE A PIECE OF CARDBOARD OR
WOOD RATHER THAN HANDS AND
WEAR EYE PROTECTION WHEN
SEARCHING FOR HYDRAULIC LEAKS.
ESCAPING HYDRAULIC OIL UNDER
PRESSURE CAN PENETRATE SKIN. IF
OIL IS INJECTED INTO SKIN, IT MUST BE
SURGICALLY REMOVED WITHIN A FEW
HOURS BY A DOCTOR OR GANGRENE
MAY RESULT.
3. Store loader in a dry place.
To keep mounting kit hardware from loosening
during operation, periodically check that all
loader mounting kit hardware is torqued to
specifications noted in torque chart, Page 33. To
aid in mounting and dismounting loader, apply a
small amount of grease to areas shown in Figure 4-1.
23
Figure 4-2 Lubrication Points
4-3 HYDRAULIC SYSTEM PRESSURE
REQUIREMENTS
4-4 TROUBLESHOOTING
Troubleshooting procedures are listed in Table 4-1.
If the problem cannot be solved or replacement
parts are necessary, contact your authorized Bush
Hog dealer. Please have ready your machine name,
model number, serial number, purchase date and
exact cause or description of problem.
A tractor hydraulic system pressure setting of 2500
psi is recommended for maximum efficiency and service. Do not exceed 3000 psi as this will damage
components possibly causing serious injury.
The Bush Hog control valve is pre-set at the factory
and should not be adjusted.
24
TABLE 4-1 TROUBLESHOOTING PROCEDURES
PROBLEM
POSSIBLE CAUSE
Loader slow and/or will not dump.
Loader chatters or vibrates when
raising or lowering.
Oil leaks.
Insufficient lift capacity.
Slow leakdown.
Change to proper oil.
Clean or replace filter.
Repair or replace pump.
Check all hoses and tubes for leaks,
damage or restrictions. Replace
damaged or restricted hoses or tube lines.
Quick couplers not properly connected. Check connection - Replace if necessary.
Control valve does not shift properly. Inspect clean, repair or replace valve.
Air in hydraulic system.
Cycle lift cylinders and bucket cylinders
several times to free system of air.
Cylinder leaks internally.
Replace seals.
Faulty valve.
Repair or replace valve.
Air in hydraulic system.
Cycle lift cylinders and bucket cylinders.
Oil level too low.
Add oil as required.
Damaged fittings or hoses.
Loose connections.
Worn or damaged O-ring or
wiper seal in cylinder rod end.
Worn or damaged O-rings in
valve.
Load is greater
than boom lift capacity.
Replace damaged parts.
Tighten fittings.
Install a seal repair kit.
Internal boom cylinder leakage.
Replace any worn parts and install a seal
repair kit.
Repair or replace valve.
Improper hydraulic valve
operation.
Worn control valve.
Worn cylinder piston seals.
Excessive wear on bottom of bucket
and wear pads.
Hydraulic cylinders inoperative.
Pump operating continually on closed
center tractor hydraulic system.
Loader lift and bucket tilt controls do not work
according to decal.
Valve noisy and/or hot.
Tractor loads/pump squeals.
REMEDY
Hydraulic oil viscosity too heavy.
Oil filter plugged.
Hydraulic pump worn.
Oil line restricted or leaking.
Float position not used while
operating loader.
Hose from control valve improperly
connected.
Hydraulic control valve relief stuck
open.
Hydraulic control valve relief set
too low.
Valve not correct for closed
center operation
Hoses improperly connected.
Open center control valve on
closed center tractor.
Closed center control valve on open
center tractor.
25
Install an O-ring repair kit.
Check loader specifications.
Check tractor system.
Have authorized Bush Hog dealer replace
seals.
Have authorized Bush Hog dealer replace
seals.
Use float position provided on valve.
Refer to plumbing diagrams in Section V.
See your tractor manual for proper adjustment or Bush Hog dealer for loader valve.
(3000 PSI is maximum pressure relief
setting recommended)
Install closed center plug on optional valve.
Refer to plumbing diagrams in Section V
and correct hose connections.
Install closed center plug on optional valve.
Install open center plug on optional valve.
SECTION V
ASSEMBLY
11. After completing assembly, be sure that all safety locking devices or guards are in place.
CAUTION
THE FOLLOWING SAFETY PRECAUTIONS
SHOULD BE THOROUGHLY UNDERSTOOD BEFORE ATTEMPTING MACHINE
ASSEMBLY.
12. Before operating the machine, thoroughly read
the operation section of this manual.
13. Before operating, read the maintenance section
of this manual to be sure that any parts requiring
lubrication such as gearboxes are full to avoid
any possible damage.
1. Do not lift heavy parts or assemblies. Use crane,
jack, tackle, fork trucks, or other mechanical
devices.
2
Select an area for assembly that is clean and
free of any debris which might cause persons
working on the assembly to trip.
14. Wear personal protective equipment such as, but
not limited to, protection for eyes, ears, feet,
hands, lungs and head when assembling the
equipment. Do not wear loose clothing or jewelry
that may catch on equipment moving parts.
3. Arrange parts to be assembled neatly in the work
area and have tools or other mechanical assisting devices in easy reach.
BEFORE OPERATING THE EQUIPMENT, IF YOU
HAVE ANY QUESTIONS REGARDING THE
PROPER ASSEMBLY OR OPERATION, CONTACT YOUR AUTHORIZED BUSH HOG DEALER
OR REPRESENTATIVE.
4. Inspect all parts and assemblies thoroughly and
remove any sharp edges, grease, oil, or dirt
which might cause pieces to slip when handling.
5. Preview the assembly instructions in your operator’s manual before proceeding further.
CAUTION
EQUIP YOUR TRACTOR WITH A ROPS CAB
OR FRAME FOR YOUR PROTECTION. SEE
YOUR TRACTOR/ROPS OPERATOR’S
MANUAL FOR CORRECT SEAT BELT USAGE.
6. If the assembly instructions call for parts or
assemblies to be blocked up, use only blocking
material that is in good condition and is capable
of handling the weight of the assembly to be
blocked. Also insure that the blocking material is
on a clean, dry surface.
Read entire instructions before beginning to install
the loader. Personal injury and machine damage
may be prevented if you read and understand these
instructions and special safety messages.
7. Never put hands on any other part of body under
blocked up assemblies if at all possible.
Any reference to right or left are as if you were in the
tractor seat facing forward .
8. Always wear goggles or safety glasses when
hammering, grinding or drilling metal parts.
5-1 TRACTOR PREPARATION
9. If the assembly calls for welding or cutting, be
sure that there are no flammable materials close
at hand and that bystanders have taken necessary precautions.
Use front tires of equal size and maintain equal pressure in each tire. The pressure of the front tractor
tires must be increased to the maximum approved
pressure recommended by the tire manufacturer to
compensate for additional load placed on the tires
with the front end loader. Refer to your Tractor
Operator’s Manual. Adjust the front tires to the
widest recommended setting on adjustable models
for maximum stability. Front end weights must NOT
be used while loader is on the tractor. Pay particular
attention to “minimum tread settings” infromation in
Installation Instructions included with your Mounting
Kit.
AFTER COMPLETING ANY ASSEMBLY
STEP,THOROUGHLY READ THE NEXT STEP IN
THE ASSEMBLY INSTRUCTIONS BEFORE PROCEEDING WITH THAT STEP.
10. After completing assembly, thoroughly inspect
the machine to be sure that all nuts, bolts,
hydraulic fittings or any other fastened assemblies have been thoroughly tightened.
26
Tighten all bolts equally during installation so that
outside surface of brackets are level and the center
line measurement from right to left hand mounting
brackets (Dimension “A”) reads 32” plus or minus
1/4” for the 1045, 37” plus or minus 1/4” for the 2045
or 39” plus or minus 1/4” for the 3045. Figure 5-1.
5-2 TRACTOR BALLAST
CAUTION
TO HELP PREVENT ROLLOVER, USE RECOMMENDED REAR TRACTOR BALLAST
AND WIDEST WHEEL SETTINGS TO MAXIMIZE STABILITY. SEE YOUR TRACTOR
OPERATOR’S MANUAL FOR RECOMMENDATIONS.
Figure 5-1
“A”
Tractor weignt bracket may be left in place on certain tractor models with loader mounted. Front tractor weights can only be used when the loader is
parked. Weights must be removed before remounting loader or serious damage will occur to loader or
tractor front axle due to excessive weight.
The use of adequate rear counterweight to counterbalance for maximum loader capacity is required for
safe loader operation. Weight added to the rear of
the tractor provides better traction and easier, more
efficient loader operation.
Bracket Hole
IMPORTANT
Do not exceed the maximum load capacity of the
tires on your tractor. Refer to the Tire and Wheel
Specifications in your Tractor Operator’s Manual
for more information.
Mounting Bracket
IMPORTANT
To prevent mounting kit hardware from loosening during operation, always torque mounting kit
hardware to specified torque noted in Loader
Operator’s Manual.
IMPORTANT
This loader has both standard and metric fasteners. Verify that the proper fasteners are placed in
the correct locations. Do not tighten any bolts
firmly until all components are attached onto the
tractor.
Remove all loader components from shipping packaging.
5-3 INSTALLATION
5-4 HYDRAULIC HOOKUP
WARNING
For use with tractor hydraulic valve, install hoses to
loader steel tubing. Install male quick couplers (customer furnished) to 1/2” male pipe ends of hoses.
TO AVOID SERIOUS INJURY OR DEATH:
READ BEFORE CUTTING BANDS OR
REMOVING ATTACHING STRAPS. THE
LOADER MAY SHIFT DURING SHIPPING
AND HANDLING, MAKING IT UNSTABLE
ON THE PALLET. SUPPORT LOADER
WITH AN OVERHEAD HOIST OR OTHER
SUITABLE MEANS PRIOR TO REMOVING
BANDS OR ATTACHING STRAPS SECURING LOADER TO PALLET. FAILURE TO
DO SO COULD RESULT IN ACCIDENTAL
TIP-OVER OF THE LOADER THAT COULD
CAUSE SERIOUS INJURY TO YOU
AND/OR BYSTANDERS.
Refer to individual instructions that come with the
various other valve and control options.
IMPORTANT
When properly installed, the tractor remote valve
or external valve control lever/levers will control
the loader hydraulic circuits as described in
Sections 3-4 - 3-9. Refer to tractor Operator’s
Manual for further explanation of tractor remote
control lever/levers.
5-5 BUCKET LEVEL INDICATOR ROD
With bucket flat on level surface, fasten “L” end of
indicator rod to hole in bucket quick attach with two
flat washers and cotter pins as shown in Figure 3-3
on page 15. Install guide bracket over top end of rod
as shown. Fasten the bracket to the main frame with
5/16 x 1-1/4” bolt and locknut. Before tightening,
ensure that the “kink” in the rod is centered in the
bracket slot. This will serve as a visual indication
that the bucket is in the level position.
Position the tractor on a hard level surface.
Install mounting brackets on tractor as shown in
Installation Instructions included with your Mounting
Kit. For ease of handling bracket, insert chain hook
into bracket hole. Using hoist, raise and tilt bracket
aligning mounting kit holes. Figure 5-1.
27
5-6 FORK LIFT OPTION
Guard
Raise the positioning lock pins at the top of each
fork. Place fork in the middle of the frame over the
notch in the lower edge. Slide forks to desired positions and lower pins to lock forks in place.
Lock Pin
Mainframe
Forks
5-7 BALE SPEAR OPTION
Insert long spear into top of frame and fasten with
eccentric nut as shown. Tapered side of nut must be
against frame. Torque nut to 470 -505 ft./lbs. Insert
short spears into tubes at bottom of frame and tighten lock bolts.
Eccentric Nut
Frame Assembly
Long Spear
Short Spears
Locking Bolt
28
5-8 OPTIONAL BUCKET ITEMS ASSEMBLY
SPILL GUARD ATTACHMENT
1. Place spill guard on bucket & center.
2. Mark hole centers for attaching fasteners. Allow
clearance for side cutting edges on bolts in side
plates if necessary.
3. Remove spill guard and drill 9/16” holes. Install spill
guard and torque fasteners per Torque Specifications,
page 30.
SPILL GUARD
1/2 x 1-1/2” Bolt,
Lockwasher & Nut
9/16” Holes (7Places)
SIDE CUTTING EDGES
1/2 x 1” Bolt & Locknut
DIGGING TEETH
3/8 X 2-1/2” Bolt,
Lockwasher & Nut
Bushings
1/2 X 1-1/2” BOLT
3/8” U-BOLT
TINE TEETH
Lockwashers & Nuts
29
TORQUE SPECIFICATIONS
Proper toque for American fasteners used on Bush Hog equipment.
Recommended Torque in Foot Pounds (Newton Meters).*
AMERICAN
Bolt Head Markings
W RENCH
S IZ E (IN .) “ A ”
SAE Grade 2
(No Dashes)
SAE Grade 5
(3 Dashes)
lt
”
Bo er “B
t
e
m
Dia
Wrench
Size “A”
SAE Grade 8
(6 Dashes)
METRIC
Wrench
Size “A”
B O L T D IA M E T E R
(IN .) “ B ” A N D
T H R E A D S IZ E
SAE
GRADE 2
SAE
GRADE 5
SAE
GRADE 8
7/16
1/4 - 2O UNC
6 (7)
8 (11)
12 (16)
7/16
1/4 - 28 UNF
6 (8)
10 (13)
14 (18)
1/2
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)
1-5/16
7/8 - 9 UNC
166 (225)
430 (583)
606 (821)
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)
2013 (2728)
1-7/8
1-1/4 - 12 UNF
553 (749)
1241 (1682)
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
m
Dia
8.8
Numbers appearing on bolt heads
indicate ASTM class.
*U se 7 5 % o f th e sp e cifie d to rq u e va lu e fo r
p la te d fa ste n e rs. U se 8 5 % o f th e sp e cifie d to rq u e va lu e s fo r lu b rica te d fa ste n e rs.
Proper torque for metric fasteners used on Bush Hog equipment.
Recommended torque in foot pounds (newton Meters).*
—WRENCH
SIZE
(mm) “A”
BOLT
DIA.
(mm) “B”
ASTM
4.6
8
5
1.8 (2.4)
5.1 (6.9)
6.5 (8.8)
10
6
3 (4)
8.7 (12)
11.1 (15)
ASTM
8.8
ASTM
9.8
ASTM
10.9
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)
24
16
62 (84)
167 (226)
181 (245)
230 (312)
30
20
122 (165)
325 (440)
449 (608)
33
22
443 (600)
611 (828)
36
24
41
27
46
30
30
211 (286)
418 (566)
563 (763)
778 (1054)
821 (1112)
1138 (1542)
1119 (1516)
1547 (2096)
SAFETY DECALS
To promote safe operation, Bush Hog supplies safety decals on all products manufactured. Because damages
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.
Decals 50100231, 50100232, 50100233 and 50100234 are
located on the left side of the subframe.Decal 501002238 is
located on the lift cylinder. Other decals are located on
attachments (Bucket, Fork Lift, Bale Spear, etc.).
DECALS
CAUTION
Be sure to purge all the air from the
hydraulic system before attempting to
raise or lower this machine. Refer to
operators manual for further details.
50100238
50100238
500100233
WARNING
Raised loader or boom can fall
from hydraulic system failure.
To avoid serious injury or death:
• Block up or securely support loader
and boom before working
underneth.
• Purge all air from hydraulic system
before attempting to raise or lower
loader or boom.
• Stand clear if lowering or raising
loader or boom.
• Do not use hand or skin to check for
hydraulic leaks. Use cardboard or
wood. Wear eye protection.
• High pressure oil leaks can
penetrate skin causing serious
injury and gangrene. Consult a
physician immediately.
• Lower loader or boom and
release hydraulic pressure before
loosening fittings.
• Refer to operator manual for details.
50100231
50100232
50100231
50100234
31
BUSH HOG L.L.C.
WALVOIL VALVE MOUNTING INSTRUCTIONS
50051735 & 50051736 SINGLE HANDLE VALVE KITS
HYDRAULIC ATTACHMENT
50051735 SINGLE HANDLE VALVE KIT
PART NUMBER
QTY.
50051736 SINGLE HANDLE VALVE KIT
PART NAME
PART NUMBER
50041053........................ 1..............Valve Stand Assembly
50051731........................ 1..............80” Hose Assembly (Blue)
50051734........................ 1..............80” Hose Assembly (Yellow)
50051733........................ 1..............80” Hose Assembly (Red)
50051732........................ 1..............80” Hose Assembly (Green)
50041057........................ 2..............Hydraulic Hose Ass’y (156”)
50041055........................ 1..............Single Handle Valve Mnt Ass’y
25H47571........................5..............Cable Tie
50051652........................ 1..............Instruction Sheet
50027307........................ 1..............Bag Of Fasteners
25H46807........................1..............Corrugated Box
QTY.
PART NAME
25H46807........................1..............Valve Stand Assembly
50051731........................ 1..............80” Hose Assembly (Blue)
50051734........................ 1..............80” Hose Assembly (Yellow)
50051733........................ 1..............80” Hose Assembly (Red)
50051732........................ 1..............80” Hose Assembly (Green)
25H46807........................2..............Hydraulic Hose Ass’y (120”)
25H46807........................1..............Single Handle Valve Mnt Ass’y
25H47571........................5..............Cable Tie
50051652........................ 1..............Instruction Sheet
50027307........................ 1..............Bag Of Fasteners
25H46807........................1..............Corrugated Box
FOR 3545, 4045, 5045, 6045 LOADERS
(See Page 2 for Valve Mounting Instructions)
WARNING
THE LOADER CAN FALL FROM HYDRAULIC
SYSTEM FAILURE. TO AVOID SERIOUS
INJURY OR DEATH, SECURELY SUPPORT
LOADER BEFORE WORKING UNDERNEATH.
CAUTION
USE A PIECE OF CARDBOARD OR WOOD RATHER
THAN HANDS AND WEAR EYE PROTECTION WHEN
SEARCHING FOR HYDRAULIC LEAKS. ESCAPING
HYDRAULIC OIL UNDER PRESSURE CAN PENETRATE
SKIN. IF OIL IS INJECTED INTO SKIN, IT MUST BE
SURGICALLY REMOVED WITHIN A FEW HOURS BY A
DOCTOR OR GANGRENE MAY RESULT.
50027307 BAG OF FASTENERS
PART NUMBER
QTY.
PART NAME
25H40124........................2..............Male 450 Elbow
52161.............................. 3..............Cable Tie
51260.............................. 1..............Bag
*25H50807....................... 1..............Handle Assemble
*25H50803....................... 1..............Power Beyond Plug
*25H50811....................... 1..............Handle Assembly
*NOTE: These items are part of the Valve Assembly and are removed and placed
in the bag for shipping purposes and the handle must be re-assembled
to the Valve.
INSTALLATION NOTES
z CAUTION: Before leaving tractor seat, stop engine, lock brake, relieve hydraulic pressure, and remove key.
Do Not allow bystanders in work area.
z When attaching a loader Valve to the rear remotes of the tractor, a power beyond kit is not required. A power beyond kit
Must be used when attaching a loader valve to a hydraulic source other than to the rear remotes of a tractor having an
Open center hydraulic system.
R
z A power beyond kit is Not required on tractors with a Closed center hydraulic system. The loader valve may be attached
to the tractor at the rear remotes or, at another hydraulic source recommended by the tractor manufacturer.
P.O. Box 1039 Selma, AL 36702-1039 (334) 874-2700
101 Bush Hog Boulevard Telford, TN 37690-2421 (423) 788-7100
Page 1
04/12/06
62-06
Instruction Sheet No. 50051652
WALVOIL VALVE MOUNTING INSTRUCTIONS
VALVE STAND ASSEMBLY INSTRUCTIONS
(See Page 3 for Valve Stand Mounting Instructions)
Note: Must be mounted to Loader Bracket
before mounting Loader to Bracket.
VALVE PLUMBING ASSEMBLY
Single Handle Controls shown.
Color Code Red - Rod End of Lift
Color Code Green - Head End of Bucket
Color Code Blue - Head End of Lift
Color Code Yellow - Rod End of Bucket
Mount Plate to Loader Bracket
(Top Hole)
(1) 1/2” x 2-3/4” Capscrew
(1) 1/2” Lockwasher
(1) 1/2” Hex Nut
Hoses Not
Shown for Clarity!
Mount Plate to Loader Bracket
(Bottom Hole)
(1) 1/2” x 3” Capscrew
(2) 1/2” Flatwashers
(1) 1/2” Lockwasher
(1) 1/2” Hex Nut
To the four metal
lines on loader
Color Code Blue
Color Code Red
Loader
Bracket
Shield Not Shown for Clarity!
Hoses Shown Disconnected for Clarity!
25H40124
(2) Male 450 Elbows
Color Code Yellow
VALVE SHORT MOUNT ASSEMBLY INSTRUCTIONS
25H50807
Handle Assembly
Note: Must be mounted to Loader Bracket
before mounting Loader to Bracket.
Color Code Green
To
es
Pr
s
tl
Ou
u re
et
Closed Center
Plug
( See Note 1 Below )
Re
To
tu r
nl
nI
et
Mount Tube to Valve Mount Bracket
(2) 1/2” x 3-1/4” Capscrews
(2) 1/2” Lockwashers
(2) 1/2” Hex Nuts
Open Center
Plug
Note: When the Bush Hog Valve is used in conjunction with tractors having a PFC system
the valve Must be connected to the Tractor
Remotes.
Mount Plate to Loader Bracket
(Top Hole)
(1) 1/2” x 2-3/4” Capscrew
(1) 1/2” Lockwasher
(1) 1/2” Hex Nut
Mount Plate to Loader Bracket
(Bottom Hole)
(1) 1/2” x 3” Capscrew
(2) 1/2” Flatwashers
(1) 1/2” Lockwasher
(1) 1/2” Hex Nut
Note: This Valve is set for an Open Center Tractor Hydraulic System
When shipped. When attaching to tractors with Closed Center
Hydraulic Systems, A Closed Center Plug must be installed.
(A. Remove Open Center Plug.
(B. Installed the Closed Plug furnished with valve.
(C. Reinstall Open Center Plug into end of closed Center Plug.
Hoses Not
Shown for Clarity!
50027309
Valve Mount Bracket
50027313
Mount Plate
Loader
Bracket
25H41158
(2) Spacers
(See Note 1)
Note 1: Place spacers inside mount plate to
replace mount tube.
Note 1: Use two (25H49867) 156” (5045, 6045) Hydraulic Hoses with 50051735 Single Handle.
Use two (25H50266) 120” (3545, 4045) Hydraulic Hoses with 50051736 Single Handle.
Page 2
Page 3
WALVOIL VALVE MOUNTING INSTRUCTIONS
VALVE STAND ASSEMBLY INSTRUCTIONS
(See Page 3 for Valve Stand Mounting Instructions)
Note: Must be mounted to Loader Bracket
before mounting Loader to Bracket.
VALVE PLUMBING ASSEMBLY
Single Handle Controls shown.
Color Code Red - Rod End of Lift
Color Code Green - Head End of Bucket
Color Code Blue - Head End of Lift
Color Code Yellow - Rod End of Bucket
Mount Plate to Loader Bracket
(Top Hole)
(1) 1/2” x 2-3/4” Capscrew
(1) 1/2” Lockwasher
(1) 1/2” Hex Nut
Hoses Not
Shown for Clarity!
Mount Plate to Loader Bracket
(Bottom Hole)
(1) 1/2” x 3” Capscrew
(2) 1/2” Flatwashers
(1) 1/2” Lockwasher
(1) 1/2” Hex Nut
To the four metal
lines on loader
Color Code Blue
Color Code Red
Loader
Bracket
Shield Not Shown for Clarity!
Hoses Shown Disconnected for Clarity!
25H40124
(2) Male 450 Elbows
Color Code Yellow
VALVE SHORT MOUNT ASSEMBLY INSTRUCTIONS
25H50807
Handle Assembly
Note: Must be mounted to Loader Bracket
before mounting Loader to Bracket.
Color Code Green
To
es
Pr
s
tl
Ou
u re
et
Closed Center
Plug
( See Note 1 Below )
Re
To
tu r
nl
nI
et
Mount Tube to Valve Mount Bracket
(2) 1/2” x 3-1/4” Capscrews
(2) 1/2” Lockwashers
(2) 1/2” Hex Nuts
Open Center
Plug
Note: When the Bush Hog Valve is used in conjunction with tractors having a PFC system
the valve Must be connected to the Tractor
Remotes.
Mount Plate to Loader Bracket
(Top Hole)
(1) 1/2” x 2-3/4” Capscrew
(1) 1/2” Lockwasher
(1) 1/2” Hex Nut
Mount Plate to Loader Bracket
(Bottom Hole)
(1) 1/2” x 3” Capscrew
(2) 1/2” Flatwashers
(1) 1/2” Lockwasher
(1) 1/2” Hex Nut
Note: This Valve is set for an Open Center Tractor Hydraulic System
When shipped. When attaching to tractors with Closed Center
Hydraulic Systems, A Closed Center Plug must be installed.
(A. Remove Open Center Plug.
(B. Installed the Closed Plug furnished with valve.
(C. Reinstall Open Center Plug into end of closed Center Plug.
Hoses Not
Shown for Clarity!
50027309
Valve Mount Bracket
50027313
Mount Plate
Loader
Bracket
25H41158
(2) Spacers
(See Note 1)
Note 1: Place spacers inside mount plate to
replace mount tube.
Note 1: Use two (25H49867) 156” (5045, 6045) Hydraulic Hoses with 50051735 Single Handle.
Use two (25H50266) 120” (3545, 4045) Hydraulic Hoses with 50051736 Single Handle.
Page 2
Page 3
BUSH HOG L.L.C.
WALVOIL VALVE MOUNTING INSTRUCTIONS
50051735 & 50051736 SINGLE HANDLE VALVE KITS
HYDRAULIC ATTACHMENT
50051735 SINGLE HANDLE VALVE KIT
PART NUMBER
QTY.
50051736 SINGLE HANDLE VALVE KIT
PART NAME
PART NUMBER
50041053........................ 1..............Valve Stand Assembly
50051731........................ 1..............80” Hose Assembly (Blue)
50051734........................ 1..............80” Hose Assembly (Yellow)
50051733........................ 1..............80” Hose Assembly (Red)
50051732........................ 1..............80” Hose Assembly (Green)
50041057........................ 2..............Hydraulic Hose Ass’y (156”)
50041055........................ 1..............Single Handle Valve Mnt Ass’y
25H47571........................5..............Cable Tie
50051652........................ 1..............Instruction Sheet
50027307........................ 1..............Bag Of Fasteners
25H46807........................1..............Corrugated Box
QTY.
PART NAME
25H46807........................1..............Valve Stand Assembly
50051731........................ 1..............80” Hose Assembly (Blue)
50051734........................ 1..............80” Hose Assembly (Yellow)
50051733........................ 1..............80” Hose Assembly (Red)
50051732........................ 1..............80” Hose Assembly (Green)
25H46807........................2..............Hydraulic Hose Ass’y (120”)
25H46807........................1..............Single Handle Valve Mnt Ass’y
25H47571........................5..............Cable Tie
50051652........................ 1..............Instruction Sheet
50027307........................ 1..............Bag Of Fasteners
25H46807........................1..............Corrugated Box
FOR 3545, 4045, 5045, 6045 LOADERS
(See Page 2 for Valve Mounting Instructions)
WARNING
THE LOADER CAN FALL FROM HYDRAULIC
SYSTEM FAILURE. TO AVOID SERIOUS
INJURY OR DEATH, SECURELY SUPPORT
LOADER BEFORE WORKING UNDERNEATH.
CAUTION
USE A PIECE OF CARDBOARD OR WOOD RATHER
THAN HANDS AND WEAR EYE PROTECTION WHEN
SEARCHING FOR HYDRAULIC LEAKS. ESCAPING
HYDRAULIC OIL UNDER PRESSURE CAN PENETRATE
SKIN. IF OIL IS INJECTED INTO SKIN, IT MUST BE
SURGICALLY REMOVED WITHIN A FEW HOURS BY A
DOCTOR OR GANGRENE MAY RESULT.
50027307 BAG OF FASTENERS
PART NUMBER
QTY.
PART NAME
25H40124........................2..............Male 450 Elbow
52161.............................. 3..............Cable Tie
51260.............................. 1..............Bag
*25H50807....................... 1..............Handle Assemble
*25H50803....................... 1..............Power Beyond Plug
*25H50811....................... 1..............Handle Assembly
*NOTE: These items are part of the Valve Assembly and are removed and placed
in the bag for shipping purposes and the handle must be re-assembled
to the Valve.
INSTALLATION NOTES
z CAUTION: Before leaving tractor seat, stop engine, lock brake, relieve hydraulic pressure, and remove key.
Do Not allow bystanders in work area.
z When attaching a loader Valve to the rear remotes of the tractor, a power beyond kit is not required. A power beyond kit
Must be used when attaching a loader valve to a hydraulic source other than to the rear remotes of a tractor having an
Open center hydraulic system.
R
z A power beyond kit is Not required on tractors with a Closed center hydraulic system. The loader valve may be attached
to the tractor at the rear remotes or, at another hydraulic source recommended by the tractor manufacturer.
P.O. Box 1039 Selma, AL 36702-1039 (334) 874-2700
101 Bush Hog Boulevard Telford, TN 37690-2421 (423) 788-7100
Page 1
04/12/06
62-06
Instruction Sheet No. 50051652
BUSH HOG L.L.C.
MOUNTING INSTRUCTIONS
50051729 CABLE CONTROL VALVE KIT
50051730 CABLE CONTROL VALVE KIT
HYDRAULIC ATTACHMENT
FOR MID MOUNT LOADERS
(See Page 2 for Mounting Instructions)
WARNING
THE LOADER CAN FALL FROM HYDRAULIC
SYSTEM FAILURE. TO AVOID SERIOUS
INJURY OR DEATH, SECURELY SUPPORT
LOADER BEFORE WORKING UNDERNEATH.
CAUTION
R
USE A PIECE OF CARDBOARD OR WOOD RATHER
THAN HANDS AND WEAR EYE PROTECTION WHEN
SEARCHING FOR HYDRAULIC LEAKS. ESCAPING
HYDRAULIC OIL UNDER PRESSURE CAN PENETRATE
SKIN. IF OIL IS INJECTED INTO SKIN, IT MUST BE
SURGICALLY REMOVED WITHIN A FEW HOURS BY A
DOCTOR OR GANGRENE MAY RESULT.
P.O. Box 1039 Selma, AL 36702-1039 (334) 874-2700
101 Bush Hog Boulevard Telford, TN 37690-2421 (423) 788-7100
ATTACHING HANDLE MOUNT, CONTROL HANDLE
AND CABLES TO TRACTOR
1.
CAUTION: Before leaving tractor seat, stop engine, lock brake, relieve hydraulic pressure,
and remove key. Do Not allow bystanders in work area.
2.
Locate an area in the front-right side of tractor floor board to mount the support mount.
(NOTE: If the floor board has a floor matt, role the matt back in the area chosen to
check for pre-drilled mounting holes by the tractor manufacturer). If mounting holes
will have to be drilled, make sure the area on the underside of the floor board has no
cables, tubes, linkages or any other obstructions that would interfere or be damaged by
drilling to mount the support weldment.
Page 1
03/11/06
62-06
Instruction Sheet No. 50051651
3.
4.
Assemble the mount to the support tube and handle to the support tube (refer to Fig. 1).
Leave all fasteners snug but not tight. position the assembly on the area of the floor board
chosen and adjust the assembly to be sure the operator has complete and comfortable
access to the control handle. (NOTE: The support mount may be rotated 1800 from position shown in Fig. 1 if necessary for better access to the controls). If the tractor has a
floor matt, use the support mount as a template and mark the area around the base of the
support mount where it contacts the matt. Cut the matt on the marked area and remove the
cut out piece of matt.
It will be necessary to remove the support mount from the support tube to perform this step.
Position support mount on the cab floor board and use the mount as a template. Drill four
3/8” holes in line with the four slotted holes in the support mount. Mark the center of the 1
1/4” hole in the support mount on the floor board as close as possible to the hole in the support mount. Use a hole saw and cut a 1 1/4” hole that aligns with the large hole in the sup
port mount (Refer to Fig. 1).
50051730 CABLE CONTROL VALVE KIT
PART NUMBER
QTY.
50051729 CABLE CONTROL VALVE KIT
PART NAME
PART NUMBER
50051669........................ 1..............68” Hose Assembly (Green)
50051670........................ 1..............68” Hose Assembly (Red)
50051671........................ 1..............68” Hose Assembly (Yellow)
50051672........................ 1..............68” Hose Assembly (Blue)
50041056........................ 2..............Hydraulic Hose (120”)
50041068........................ 1..............Cable Control Valve Ass’y
50020851........................ 1..............Control Handle
50020540........................ 2..............Control Cable (78”)
50026999........................ 2..............Cable Connector Kit
50027394........................ 1..............Support Weldment
50027391........................ 1..............Support Tube Weldment
50027388........................ 1..............Valve Mount
50051651........................ 1..............Instruction Sheet
50027390........................ 1..............Bag Of Hardware
68822.............................. 1..............Crate
QTY.
PART NAME
50051669........................ 1..............68” Hose Assembly (Green)
50051670........................ 1..............68” Hose Assembly (Red)
50051671........................ 1..............68” Hose Assembly (Yellow)
50051672........................ 1..............68” Hose Assembly (Blue)
50041057........................ 2..............Hydraulic Hose (156”)
50041068........................ 1..............Cable Control Valve Ass’y
50020851........................ 1..............Control Handle
50020540........................ 2..............Control Cable (78”)
50026999........................ 2..............Cable Connector Kit
50027394........................ 1..............Support Weldment
50027391........................ 1..............Support Tube Weldment
50027388........................ 1..............Valve Mount
50051651........................ 1..............Instruction Sheet
50027390........................ 1..............Bag Of Hardware
68822.............................. 1..............Crate
Fig. 1
CONTROL HANDLE
50027390 BAG OF HARDWARE
DECAL
CONTROL HANDLE TO
SUPPORT TUBE :
(2) 5/16” X 5 CAPSCREWS
(2) 5/16” FLATWASHERS
(2) 5/16” LOCKWASHERS
(2) 5/16” HEX NUTS
PART NUMBER
SET SCREW
(4)
(4)
(4)
(4)
3/8”
3/8”
3/8”
3/8”
PART NAME
25H47571........................5..............Cable Tie
08151600........................ 2..............Hexnut 1/2” ZP
15528.............................. 2..............Hexnut 5/16” ZP
08151200........................ 6..............Hexnut 3/8” ZP
15806.............................. 2..............Lockwasher 1/2” ZP
15812.............................. 6..............Lockwasher 3/8” ZP
15808.............................. 6..............Lockwasher 5/16” ZP
44311.............................. 4..............Lockwasher M8 ZP
15915.............................. 6..............Flatwasher 3/8” ZP
15916.............................. 1..............Flatwasher 1/2” ZP
15907.............................. 2..............Flatwasher 5/16” ZP
44098.............................. 6..............HHCS 3/8” x 2 3/4” G5 ZP
44582.............................. 2..............HHCS 5/16” x 5” G5 ZP
44315.............................. 4..............HHCS M8 x1.25”x20” G8.8 ZP
15080.............................. 2..............HHCS 1/2” x 2 1/4” G5 ZP
25H43832....................... 2..............Straight Thread Adaptor
25H41276....................... 1..............Valve Control Decal
51260.............................. 1..............Bag
25H41276
SUPPORT MOUNT TO
CAB FLOOR BOARD :
CONTROL CABLES
QTY.
X 2 3/4” CAPSCREWS
FLATWASHERS
LOCKWASHERS
HEX NUTS
NOTCH AT BASE
OF SUPPORT TUBE
SUPPORT TUBE TO
SUPPORT MOUNT :
(2)
(2)
(2)
(2)
3/8”
3/8”
3/8”
3/8”
X 2 3/4” CAPSCREWS
FLATWASHERS
LOCKWASHERS
HEX NUTS
DRILL (4) 3/8” HOLES
SUPPORT MOUNT
1 1/4” HOLE IN FLOOR BOARD
FLOOR BOARD
Page 2
03/11/03
62-06
Instruction Sheet No. 50051651
Page 7
17.
NOTE: This valve is set for a open center tractor hydraulic system. If tractor has a
closed center system a closed center plug must be installed. Remove the open center
plug in valve. Install the closed center plug furnished with the valve (Refer to Fig. 6).
18.
Tighten all fittings and connections and install proper fitting to the supply and return lines at
the rear of the tractor and connect to the tractor.
19.
Adjust the cables so the control handle operates as follows:
5.
Attach the support mount to the floor board with (4) 3/8” x 2 3/4” Gr. 5 capscrews, 3/8” flatwashers, 3/8” lockwashers and 3/8” hex nuts provide in kit (Refer to Fig. 1).
6.
Attach the control cables to the control handle body (Refer to Fig. 2). Remove the rubber
boot from the control handle body. Insert the end of the cable into the control handle body
enough to align the clevis on the end of the cable tab on the handle. Insert the pin through
the clevis and tab and secure in place with the E-clip. Position the cable body so the groove
in the cable body aligns with the cross drilled hole in the handle body. Insert metric bolt in
cross drilled hole and through groove in cable body and secure with the metric nut.
z When properly adjusted, control handle will spring back to neutral position whenever
valve spool is moved into the working position.
z When properly adjusted, control handle will be able to pushed forward, positioning the
valve spool into the float detent position. Handle must be manually pulled rearward to
disengage float position.
20.
Fig. 2
BOOT
When valve circuit is properly connected, control handle should operate loader
as follows:
z
z
z
z
z
Pull handle back to raise loader.
Push handle forward to lower loader.
Push handle full forward to activate float detent position.
Move handle to the right to dump attachment.
Move handle to the left to roll back the attachment.
PIN
E-CLIP
HOUSING
CONTROL CABLE
GROOVE IN CONTROL CABLE
NOTE: Cotaminant’s in hydraulic oil can cause valve spools to stick.
BE ALERT when operating loader and follow your tractors operators
manual oil maintenance schedule.
7.
Fig. 6
Attach the handle body to the support tube as shown in Fig. 1. Make sure the solid post in
the control handle is positioned as shown in Fig. 3. (NOTE: The solid post position is critical for the correct operation of this valve). Install the rubber boot. The knob on the control handle must be rotated 1800 for this application. Loosen the setscrew in the base offline
knob, rotate 1800 and retighten the set screw.
NOTES:
1. WHEN ATTACHING A LOADER VALVE TO THE REAR
REMOTES OF THE TRACTOR, A POWER BEYOND IS
NOT REQUIRED. A POWER BEYOND KIT MUST BE
USED WHEN ATTACHING A LOADER VALVE TO A
HYDRAULIC SOURCE OTHER THAN THE REAR
REMOTES OF A TRACTOR HAVING AN OPEN CENTER
HYDRAULIC SYSTEM.
Fig. 3
OPEN CENTER PLUG
REMOVE FOR TRACTORS WITH
CLOSED CENTER SYSTEMS
AND REPLACE WITH CLOSED
CENTER PLUG ASSEMBLY.
VALVE
2. A POWER BEYOND KIT IS NOT REQUIRED ON
TRACTORS WITH A CLOSED CENTER HYDRAULIC
SYSTEM. THE LOADER VALVE MAY BE ATTACHED TO
THE TRACTOR AT THE REAR REMOTES OR, AT
ANOTHER HYDRAULIC SOURCE RECOMMENDED BY
THE TRACTOR MANUFACTURER.
FRONT OF TRACTOR
LIFT CIRCUIT
CONTROL CABLE
3. IF POWER BEYOND SYSTEM IS USED, REFER TO
BASIC POWER BEYOND PLUMBING INSTRUCTIONS
FURNISHED WITH POWER BEYOND KIT.
4. IF THE TRACTOR HAS A PRESSURE FLOW COMPENSATED SYSTEM (PFC) - THE LOADER VALVE MUST
BE CONNECTED TO THE TRACTOR REMOTES.
ATTACHMENT CIRCUIT CONTROL CABLE
SOLID POST LOCATION
(NOTE: SOLID POST LOCATION IS
CRITICAL FOR CORRECT VALVE
OPERATION).
CLOSED CENTER PLUG
REPLACE THE OPEN CENTER PLUG
WITH THIS ASSEMBLY FOR TRACTORS
WITH CLOSED CENTER SYSTEMS.
Page 6
25H41276
TOP VIEW OF HANDLE HOUSING
WITH BOOT REMOVED.
Page 3
ATTACHING VALVE TO LOADER FRAME:
Attach the valve mount to the outside surface of the pedestal on the mounting bracket of
load on right hand side of the tractor. Use the 1/2” x 2 1/4” capscrews, 1/2” flatwashers, 1/2”
lockwashers and 1/2” hex nuts as shown in Fig. 4.
11.
Attach valve to valve mount using the (4) m8 x 1.25 x 20 Gr. 8.8 capscrews and m8 lockwashers as shown in Fig. 4. Be sure that the work ports are on top and the attaching ends
of the spools are down.
12.
It will be necessary to install the cable attaching kit on the cable in the order shown in
Fig. 4. The nut, washer, flange and cap must be ran across the threaded part of the cable
until they are hanging loose on the cable.
Install joint to the cable end and snug up the jamb nut. Connect the cable to the control valve
spools (Refer to Fig. 3 for correct location of cables to spools).
14.
Place joint in slot on end of spool and place pin in hole. Place “O” ring in inset of valve
around spool and run cap up on threads of cable end. Pull flange up around the cap and
attach to the valve using the (2) m5 x 20 socket head screws provided. Pull washer up to
base of cap and run the nut to contact the washer.
15.
CONNECTING HYDRAULICS (Refer to Fig. 5 and Fig. 6):
Attach (4) 68” hose assemblies by plugging into the matching color on the female halves
mounted on the valve (Refer to Fig. 5).
16.
Attach the (4) hoses from the valve to the metal lines on the boom frame on the right hand
side of loader. Use the (4) 3/4” JIC x 3/4” JIC male unions provided.
Attach as follows: (Refer to Fig. 5).
Port A1 (Blue) to head end of lift cylinder.
Port B1 (Red) to rod end of lift cylinder.
Port A2 (Yellow) to rod end of bucket cylinder.
Port B2 (Green) to head end of bucket cylinder.
Fig. 5
Fig. 4
VALVE MOUNT TO PEDESTAL :
(2) 1/2” X 2 1/4” CAPSCREWS
(2) 1/2” FLATWASHERS
(2) 1/2” LOCKWASHERS
(2) 1/2” HEX NUTS
VALVE MOUNT
RED
LOADER
MOUNT BRACKET
PEDESTAL
GREEN
Hoses and Quick
Disconnect Fittings Not
Shown for Clarity!
YELLOW
10.
Tighten all fasteners for handle controls and apply control decal to plate atop the support
tube (Refer to Fig. 1).
13.
BLUE
9.
Rotate the valve ends of the cables through the notch at the bottom of the support tube and
through the large hole in the support mount and floor board of the tractor. Attach the support tube to the support mount as shown in Fig. 1. (NOTE: Take care to not cut cable covering on sharp edges and be sure cable routing will not cause binding when attached
to the valve).
TO METAL LINES ON LOADER FRAME.
VALVE
SPOOL END
“O” RING
VALVE TO VALVE MOUNT :
PIN
(4) m8 x 1.25 x 20 CAPSCREWS
(4) m8 LOCKWASHERS
(RED) - PORT B1 TO ROD END LIFT CYLINDER.
(BLUE) - PORT A1 TO HEAD END LIFT CYLINDER.
(YELLOW) - PORT A2 TO ROD END BUCKET CYLINDER.
(GREEN) - PORT B2 TO HEAD END BUCKET CYLINDER.
JOINT
JAMB NUT
CAP
TO SUPPLY PORTS AT
REAR OF TRACTOR.
FLANGE
WASHER
RETURN
SOCKET HEAD SCREW
PRESSURE
8.
HEX NUT
LIFT CIRCUIT CABLE
ATTACHMENT CIRCUIT CABLE
Page 4
Page 5
ATTACHING VALVE TO LOADER FRAME:
Attach the valve mount to the outside surface of the pedestal on the mounting bracket of
load on right hand side of the tractor. Use the 1/2” x 2 1/4” capscrews, 1/2” flatwashers, 1/2”
lockwashers and 1/2” hex nuts as shown in Fig. 4.
11.
Attach valve to valve mount using the (4) m8 x 1.25 x 20 Gr. 8.8 capscrews and m8 lockwashers as shown in Fig. 4. Be sure that the work ports are on top and the attaching ends
of the spools are down.
12.
It will be necessary to install the cable attaching kit on the cable in the order shown in
Fig. 4. The nut, washer, flange and cap must be ran across the threaded part of the cable
until they are hanging loose on the cable.
Install joint to the cable end and snug up the jamb nut. Connect the cable to the control valve
spools (Refer to Fig. 3 for correct location of cables to spools).
14.
Place joint in slot on end of spool and place pin in hole. Place “O” ring in inset of valve
around spool and run cap up on threads of cable end. Pull flange up around the cap and
attach to the valve using the (2) m5 x 20 socket head screws provided. Pull washer up to
base of cap and run the nut to contact the washer.
15.
CONNECTING HYDRAULICS (Refer to Fig. 5 and Fig. 6):
Attach (4) 68” hose assemblies by plugging into the matching color on the female halves
mounted on the valve (Refer to Fig. 5).
16.
Attach the (4) hoses from the valve to the metal lines on the boom frame on the right hand
side of loader. Use the (4) 3/4” JIC x 3/4” JIC male unions provided.
Attach as follows: (Refer to Fig. 5).
Port A1 (Blue) to head end of lift cylinder.
Port B1 (Red) to rod end of lift cylinder.
Port A2 (Yellow) to rod end of bucket cylinder.
Port B2 (Green) to head end of bucket cylinder.
Fig. 5
Fig. 4
VALVE MOUNT TO PEDESTAL :
(2) 1/2” X 2 1/4” CAPSCREWS
(2) 1/2” FLATWASHERS
(2) 1/2” LOCKWASHERS
(2) 1/2” HEX NUTS
VALVE MOUNT
RED
LOADER
MOUNT BRACKET
PEDESTAL
GREEN
Hoses and Quick
Disconnect Fittings Not
Shown for Clarity!
YELLOW
10.
Tighten all fasteners for handle controls and apply control decal to plate atop the support
tube (Refer to Fig. 1).
13.
BLUE
9.
Rotate the valve ends of the cables through the notch at the bottom of the support tube and
through the large hole in the support mount and floor board of the tractor. Attach the support tube to the support mount as shown in Fig. 1. (NOTE: Take care to not cut cable covering on sharp edges and be sure cable routing will not cause binding when attached
to the valve).
TO METAL LINES ON LOADER FRAME.
VALVE
SPOOL END
“O” RING
VALVE TO VALVE MOUNT :
PIN
(4) m8 x 1.25 x 20 CAPSCREWS
(4) m8 LOCKWASHERS
(RED) - PORT B1 TO ROD END LIFT CYLINDER.
(BLUE) - PORT A1 TO HEAD END LIFT CYLINDER.
(YELLOW) - PORT A2 TO ROD END BUCKET CYLINDER.
(GREEN) - PORT B2 TO HEAD END BUCKET CYLINDER.
JOINT
JAMB NUT
CAP
TO SUPPLY PORTS AT
REAR OF TRACTOR.
FLANGE
WASHER
RETURN
SOCKET HEAD SCREW
PRESSURE
8.
HEX NUT
LIFT CIRCUIT CABLE
ATTACHMENT CIRCUIT CABLE
Page 4
Page 5
17.
NOTE: This valve is set for a open center tractor hydraulic system. If tractor has a
closed center system a closed center plug must be installed. Remove the open center
plug in valve. Install the closed center plug furnished with the valve (Refer to Fig. 6).
18.
Tighten all fittings and connections and install proper fitting to the supply and return lines at
the rear of the tractor and connect to the tractor.
19.
Adjust the cables so the control handle operates as follows:
5.
Attach the support mount to the floor board with (4) 3/8” x 2 3/4” Gr. 5 capscrews, 3/8” flatwashers, 3/8” lockwashers and 3/8” hex nuts provide in kit (Refer to Fig. 1).
6.
Attach the control cables to the control handle body (Refer to Fig. 2). Remove the rubber
boot from the control handle body. Insert the end of the cable into the control handle body
enough to align the clevis on the end of the cable tab on the handle. Insert the pin through
the clevis and tab and secure in place with the E-clip. Position the cable body so the groove
in the cable body aligns with the cross drilled hole in the handle body. Insert metric bolt in
cross drilled hole and through groove in cable body and secure with the metric nut.
z When properly adjusted, control handle will spring back to neutral position whenever
valve spool is moved into the working position.
z When properly adjusted, control handle will be able to pushed forward, positioning the
valve spool into the float detent position. Handle must be manually pulled rearward to
disengage float position.
20.
Fig. 2
BOOT
When valve circuit is properly connected, control handle should operate loader
as follows:
z
z
z
z
z
Pull handle back to raise loader.
Push handle forward to lower loader.
Push handle full forward to activate float detent position.
Move handle to the right to dump attachment.
Move handle to the left to roll back the attachment.
PIN
E-CLIP
HOUSING
CONTROL CABLE
GROOVE IN CONTROL CABLE
NOTE: Cotaminant’s in hydraulic oil can cause valve spools to stick.
BE ALERT when operating loader and follow your tractors operators
manual oil maintenance schedule.
7.
Fig. 6
Attach the handle body to the support tube as shown in Fig. 1. Make sure the solid post in
the control handle is positioned as shown in Fig. 3. (NOTE: The solid post position is critical for the correct operation of this valve). Install the rubber boot. The knob on the control handle must be rotated 1800 for this application. Loosen the setscrew in the base offline
knob, rotate 1800 and retighten the set screw.
NOTES:
1. WHEN ATTACHING A LOADER VALVE TO THE REAR
REMOTES OF THE TRACTOR, A POWER BEYOND IS
NOT REQUIRED. A POWER BEYOND KIT MUST BE
USED WHEN ATTACHING A LOADER VALVE TO A
HYDRAULIC SOURCE OTHER THAN THE REAR
REMOTES OF A TRACTOR HAVING AN OPEN CENTER
HYDRAULIC SYSTEM.
Fig. 3
OPEN CENTER PLUG
REMOVE FOR TRACTORS WITH
CLOSED CENTER SYSTEMS
AND REPLACE WITH CLOSED
CENTER PLUG ASSEMBLY.
VALVE
2. A POWER BEYOND KIT IS NOT REQUIRED ON
TRACTORS WITH A CLOSED CENTER HYDRAULIC
SYSTEM. THE LOADER VALVE MAY BE ATTACHED TO
THE TRACTOR AT THE REAR REMOTES OR, AT
ANOTHER HYDRAULIC SOURCE RECOMMENDED BY
THE TRACTOR MANUFACTURER.
FRONT OF TRACTOR
LIFT CIRCUIT
CONTROL CABLE
3. IF POWER BEYOND SYSTEM IS USED, REFER TO
BASIC POWER BEYOND PLUMBING INSTRUCTIONS
FURNISHED WITH POWER BEYOND KIT.
4. IF THE TRACTOR HAS A PRESSURE FLOW COMPENSATED SYSTEM (PFC) - THE LOADER VALVE MUST
BE CONNECTED TO THE TRACTOR REMOTES.
ATTACHMENT CIRCUIT CONTROL CABLE
SOLID POST LOCATION
(NOTE: SOLID POST LOCATION IS
CRITICAL FOR CORRECT VALVE
OPERATION).
CLOSED CENTER PLUG
REPLACE THE OPEN CENTER PLUG
WITH THIS ASSEMBLY FOR TRACTORS
WITH CLOSED CENTER SYSTEMS.
Page 6
25H41276
TOP VIEW OF HANDLE HOUSING
WITH BOOT REMOVED.
Page 3
3.
4.
Assemble the mount to the support tube and handle to the support tube (refer to Fig. 1).
Leave all fasteners snug but not tight. position the assembly on the area of the floor board
chosen and adjust the assembly to be sure the operator has complete and comfortable
access to the control handle. (NOTE: The support mount may be rotated 1800 from position shown in Fig. 1 if necessary for better access to the controls). If the tractor has a
floor matt, use the support mount as a template and mark the area around the base of the
support mount where it contacts the matt. Cut the matt on the marked area and remove the
cut out piece of matt.
It will be necessary to remove the support mount from the support tube to perform this step.
Position support mount on the cab floor board and use the mount as a template. Drill four
3/8” holes in line with the four slotted holes in the support mount. Mark the center of the 1
1/4” hole in the support mount on the floor board as close as possible to the hole in the support mount. Use a hole saw and cut a 1 1/4” hole that aligns with the large hole in the sup
port mount (Refer to Fig. 1).
50051730 CABLE CONTROL VALVE KIT
PART NUMBER
QTY.
50051729 CABLE CONTROL VALVE KIT
PART NAME
PART NUMBER
50051669........................ 1..............68” Hose Assembly (Green)
50051670........................ 1..............68” Hose Assembly (Red)
50051671........................ 1..............68” Hose Assembly (Yellow)
50051672........................ 1..............68” Hose Assembly (Blue)
50041056........................ 2..............Hydraulic Hose (120”)
50041068........................ 1..............Cable Control Valve Ass’y
50020851........................ 1..............Control Handle
50020540........................ 2..............Control Cable (78”)
50026999........................ 2..............Cable Connector Kit
50027394........................ 1..............Support Weldment
50027391........................ 1..............Support Tube Weldment
50027388........................ 1..............Valve Mount
50051651........................ 1..............Instruction Sheet
50027390........................ 1..............Bag Of Hardware
68822.............................. 1..............Crate
QTY.
PART NAME
50051669........................ 1..............68” Hose Assembly (Green)
50051670........................ 1..............68” Hose Assembly (Red)
50051671........................ 1..............68” Hose Assembly (Yellow)
50051672........................ 1..............68” Hose Assembly (Blue)
50041057........................ 2..............Hydraulic Hose (156”)
50041068........................ 1..............Cable Control Valve Ass’y
50020851........................ 1..............Control Handle
50020540........................ 2..............Control Cable (78”)
50026999........................ 2..............Cable Connector Kit
50027394........................ 1..............Support Weldment
50027391........................ 1..............Support Tube Weldment
50027388........................ 1..............Valve Mount
50051651........................ 1..............Instruction Sheet
50027390........................ 1..............Bag Of Hardware
68822.............................. 1..............Crate
Fig. 1
CONTROL HANDLE
50027390 BAG OF HARDWARE
DECAL
CONTROL HANDLE TO
SUPPORT TUBE :
(2) 5/16” X 5 CAPSCREWS
(2) 5/16” FLATWASHERS
(2) 5/16” LOCKWASHERS
(2) 5/16” HEX NUTS
PART NUMBER
SET SCREW
(4)
(4)
(4)
(4)
3/8”
3/8”
3/8”
3/8”
PART NAME
25H47571........................5..............Cable Tie
08151600........................ 2..............Hexnut 1/2” ZP
15528.............................. 2..............Hexnut 5/16” ZP
08151200........................ 6..............Hexnut 3/8” ZP
15806.............................. 2..............Lockwasher 1/2” ZP
15812.............................. 6..............Lockwasher 3/8” ZP
15808.............................. 6..............Lockwasher 5/16” ZP
44311.............................. 4..............Lockwasher M8 ZP
15915.............................. 6..............Flatwasher 3/8” ZP
15916.............................. 1..............Flatwasher 1/2” ZP
15907.............................. 2..............Flatwasher 5/16” ZP
44098.............................. 6..............HHCS 3/8” x 2 3/4” G5 ZP
44582.............................. 2..............HHCS 5/16” x 5” G5 ZP
44315.............................. 4..............HHCS M8 x1.25”x20” G8.8 ZP
15080.............................. 2..............HHCS 1/2” x 2 1/4” G5 ZP
25H43832....................... 2..............Straight Thread Adaptor
25H41276....................... 1..............Valve Control Decal
51260.............................. 1..............Bag
25H41276
SUPPORT MOUNT TO
CAB FLOOR BOARD :
CONTROL CABLES
QTY.
X 2 3/4” CAPSCREWS
FLATWASHERS
LOCKWASHERS
HEX NUTS
NOTCH AT BASE
OF SUPPORT TUBE
SUPPORT TUBE TO
SUPPORT MOUNT :
(2)
(2)
(2)
(2)
3/8”
3/8”
3/8”
3/8”
X 2 3/4” CAPSCREWS
FLATWASHERS
LOCKWASHERS
HEX NUTS
DRILL (4) 3/8” HOLES
SUPPORT MOUNT
1 1/4” HOLE IN FLOOR BOARD
FLOOR BOARD
Page 2
03/11/03
62-06
Instruction Sheet No. 50051651
Page 7
INSTALLATION INSTRUCTIONS
FOR
24H46343 POWER BEYOND KIT
The POWER BEYOND KIT is only required if connecting to an open center tractor hydraulic system. The use of a
power beyond kit allows the connection of the Bush Hog optional control valve to the tractor hydraulics without using the
remote controlled outlets on the tractor. It’s purpose is to protect the normal return port of the Bush Hog valve from back
pressure. Connection to the tractor remove provides this protection through the tractor remote control valve.
Bush Hog now provides two styles of Walvoil optional control valves: one for standard mounts and one for cable control.
The illustrations show both valves and the hose routing for both. The fittings required to connect the hoses to both
valves are provided in the kit. The power beyond plug for each valve is included in the valve kit ordered separately.
Three lines must be connected to the tractor system. Each line serves a specific purpose and proper plumbing is
essential. The proper location for the connections to the tractor hydraulic system must be obtained from the tractor manufacturer or local tractor dealership.
LINE A - PRESSURIZED SUPPLY LINE — Supplies oil from the pump to the pressure port of the control valve.
This line is the pressurized supply line to the valve when the handle on the optional control valve is activated to
move the boom or bucket cylinder.
LINE B - PRESSURIZED RETURN LINE TO TRACTOR SYSTEM — Returns oil to the tractor system when the
optional control valve is in the neutral position. This line will feel any back pressure generated by operation of
any other tractor system hydraulic function.
LINE C - NON PRESSURIZED RETURN LINE — Returns oil to the tractor system when the optional control
valve is activated to extend or retract the boom or bucket cylinders. This line must be connected to the tractor
system to provide a DIRECT return of the oil to the tractor sump or oil supply tank.
HOSE AND COUPLER ASSEMBLY
The three hydraulic hoses are supplied with reusable couplings for one end while the other end has permanently
installed couplings. The hose length must be determined for your tractor model.
BE SURE TO MAKE HOSES LONG ENOUGH to attach to tractor when loader is disconnected from tractor and is on its
leg stands.
1. Attach permanent coupler ends of hose to fittings, installed in the pressure, sump and power beyond ports of the
valve. The long hose should be attached to the sump port. See back page for instructions on installing reusable
coupling.
2. Determine required length of each hose, attach reusable couplings to hoses per instructions shown.
3. Install the three adaptors furnished into the hoses on the reusable coupling end. Place the 3/4” JIC end of the
adaptor to hose.
4. Attach two quick coupler female ends to adaptors on the pressure hose and the sump hose. Install a quick coupler
male end, to return pressurized return inlet hose (power beyond hose).
5. Attach two quick coupler male ends to pressure hose and sump hose from tractor. Attach one quick coupler female
end to tractor return outlet.
DISCONNECTING LOADER VALVE FROM TRACTOR
The pressurized supply line, A, and the pressurized return line (power beyond port) must be connected when the loader
valve is removed from the tractor. Insure female and male quick couplers are installed per paragraph 4 above. Failure
to make this connection will result in damage to the tractor hydraulic system.
Sept. -05
Instruction Sheet No. 25H46344
Sept. -05
Instruction Sheet No. 25H46344
STANDARD WALVOIL VALVE
WALVOIL CABLE CONTROL VALVE
Valve Plug
Power
Beyond Plug
Valve
Plug
Straight
Adapter
WARNING
When loader hydraulics are disconnected from
tractor hydraulics, hoses A & B must be connected to complete tractor hydraulic circuit.
FAILURE TO DO THIS WILL CAUSE SERIOUS
DAMAGE TO TRACTOR HYDRAULICS SYSTEM.
90° Elbow
Power Beyond Plug
Straight Adapter
90° Elbow
re
su
res
P
To
To
I
mp
Su
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et
Inl
)
ere
eH
os
H
g
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tur
Re
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nI
WARNING
When loader hydraulics are disconnected from
tractor hydraulics, hoses A & B must be connected to complete tractor hydraulic circuit.
FAILURE TO DO THIS WILL CAUSE SERIOUS
DAMAGE TO TRACTOR HYDRAULICS SYSTEM.
res
P
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P
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et
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ere
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These hoses
to be furnished
by dealer.
d
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uri
rn
etu
B
These hoses to
be furnished by
dealer.
B
CABLE CONTROL WALVOIL VALVE ASSEMBLY
C
A
STANDARD WALVOIL VALVE ASSEMBLY
1. Remove valve plug from right side of valve.
1. Remove valve plug from right side of valve.
2. Install power beyond plug in same hole, valve plug removed. (Note: Power beyond plug is shipped with valve.)
Torque from 20 to 25 ft./lbs.
2. Install power beyond plug in same hole, valve plug removed. (Note: Power beyond plug is shipped with valve.)
Torque from 20 to 25 ft./lbs.
3. Install straight adaptor 3/4” JIC to 7/8” SAE in power beyond port.
3. Install straight adaptor 3/4” JIC to 7/8” SAE in power beyond port.
4. Before further hydraulic assembly is done, install valve to valve mounting hardware as instructed in the hose and
valve kit package. The straight adaptor should extend through the hole in the right side of the valve mount.
4. Before further hydraulic assembly is done, install valve to valve mounting hardware as instructed in the hose and
valve kit package. The straight adaptor should extend through the hole in the right side of the valve mount.
5. Install 90° elbow 3/4” JIC male to 3/4” JIC female on straight adaptor installed in power beyond plug.
5. Install 90° elbow 3/4” JIC male to 3/4” JIC female on straight adaptor installed in power beyond plug.
Sept. -05
Instruction Sheet No. 25H46344
Sept.-05
Instruction Sheet No. 25H46344
STANDARD WALVOIL VALVE
WALVOIL CABLE CONTROL VALVE
Valve Plug
Power
Beyond Plug
Valve
Plug
Straight
Adapter
WARNING
When loader hydraulics are disconnected from
tractor hydraulics, hoses A & B must be connected to complete tractor hydraulic circuit.
FAILURE TO DO THIS WILL CAUSE SERIOUS
DAMAGE TO TRACTOR HYDRAULICS SYSTEM.
90° Elbow
Power Beyond Plug
Straight Adapter
90° Elbow
re
su
res
P
To
To
I
mp
Su
t(
nle
et
Inl
)
ere
eH
os
H
g
on
eL
s
U
d
ze
uri
s
res
tur
Re
t
nle
nI
WARNING
When loader hydraulics are disconnected from
tractor hydraulics, hoses A & B must be connected to complete tractor hydraulic circuit.
FAILURE TO DO THIS WILL CAUSE SERIOUS
DAMAGE TO TRACTOR HYDRAULICS SYSTEM.
res
P
To
P
To
et
Inl
g
on
eL
s
t (U
C
re
su
et
Inl
res
P
To
A
H
se
Ho
nle
pI
m
Su
)
ere
R
s
To
These hoses
to be furnished
by dealer.
d
ze
uri
rn
etu
B
These hoses to
be furnished by
dealer.
B
CABLE CONTROL WALVOIL VALVE ASSEMBLY
C
A
STANDARD WALVOIL VALVE ASSEMBLY
1. Remove valve plug from right side of valve.
1. Remove valve plug from right side of valve.
2. Install power beyond plug in same hole, valve plug removed. (Note: Power beyond plug is shipped with valve.)
Torque from 20 to 25 ft./lbs.
2. Install power beyond plug in same hole, valve plug removed. (Note: Power beyond plug is shipped with valve.)
Torque from 20 to 25 ft./lbs.
3. Install straight adaptor 3/4” JIC to 7/8” SAE in power beyond port.
3. Install straight adaptor 3/4” JIC to 7/8” SAE in power beyond port.
4. Before further hydraulic assembly is done, install valve to valve mounting hardware as instructed in the hose and
valve kit package. The straight adaptor should extend through the hole in the right side of the valve mount.
4. Before further hydraulic assembly is done, install valve to valve mounting hardware as instructed in the hose and
valve kit package. The straight adaptor should extend through the hole in the right side of the valve mount.
5. Install 90° elbow 3/4” JIC male to 3/4” JIC female on straight adaptor installed in power beyond plug.
5. Install 90° elbow 3/4” JIC male to 3/4” JIC female on straight adaptor installed in power beyond plug.
Sept. -05
Instruction Sheet No. 25H46344
Sept.-05
Instruction Sheet No. 25H46344
INSTALLATION INSTRUCTIONS
FOR
24H46343 POWER BEYOND KIT
The POWER BEYOND KIT is only required if connecting to an open center tractor hydraulic system. The use of a
power beyond kit allows the connection of the Bush Hog optional control valve to the tractor hydraulics without using the
remote controlled outlets on the tractor. It’s purpose is to protect the normal return port of the Bush Hog valve from back
pressure. Connection to the tractor remove provides this protection through the tractor remote control valve.
Bush Hog now provides two styles of Walvoil optional control valves: one for standard mounts and one for cable control.
The illustrations show both valves and the hose routing for both. The fittings required to connect the hoses to both
valves are provided in the kit. The power beyond plug for each valve is included in the valve kit ordered separately.
Three lines must be connected to the tractor system. Each line serves a specific purpose and proper plumbing is
essential. The proper location for the connections to the tractor hydraulic system must be obtained from the tractor manufacturer or local tractor dealership.
LINE A - PRESSURIZED SUPPLY LINE — Supplies oil from the pump to the pressure port of the control valve.
This line is the pressurized supply line to the valve when the handle on the optional control valve is activated to
move the boom or bucket cylinder.
LINE B - PRESSURIZED RETURN LINE TO TRACTOR SYSTEM — Returns oil to the tractor system when the
optional control valve is in the neutral position. This line will feel any back pressure generated by operation of
any other tractor system hydraulic function.
LINE C - NON PRESSURIZED RETURN LINE — Returns oil to the tractor system when the optional control
valve is activated to extend or retract the boom or bucket cylinders. This line must be connected to the tractor
system to provide a DIRECT return of the oil to the tractor sump or oil supply tank.
HOSE AND COUPLER ASSEMBLY
The three hydraulic hoses are supplied with reusable couplings for one end while the other end has permanently
installed couplings. The hose length must be determined for your tractor model.
BE SURE TO MAKE HOSES LONG ENOUGH to attach to tractor when loader is disconnected from tractor and is on its
leg stands.
1. Attach permanent coupler ends of hose to fittings, installed in the pressure, sump and power beyond ports of the
valve. The long hose should be attached to the sump port. See back page for instructions on installing reusable
coupling.
2. Determine required length of each hose, attach reusable couplings to hoses per instructions shown.
3. Install the three adaptors furnished into the hoses on the reusable coupling end. Place the 3/4” JIC end of the
adaptor to hose.
4. Attach two quick coupler female ends to adaptors on the pressure hose and the sump hose. Install a quick coupler
male end, to return pressurized return inlet hose (power beyond hose).
5. Attach two quick coupler male ends to pressure hose and sump hose from tractor. Attach one quick coupler female
end to tractor return outlet.
DISCONNECTING LOADER VALVE FROM TRACTOR
The pressurized supply line, A, and the pressurized return line (power beyond port) must be connected when the loader
valve is removed from the tractor. Insure female and male quick couplers are installed per paragraph 4 above. Failure
to make this connection will result in damage to the tractor hydraulic system.
Sept. -05
Instruction Sheet No. 25H46344
Sept. -05
Instruction Sheet No. 25H46344
DESCRIPTION
The hydraulic self-leveling option is designed to be incorporated into Bush Hog’s standard loader hydraulic circuit. A dual selflevel valve controls flow throughout the system so as to maintain a nearly constant position of the loader attachment relative
to the ground. The valve performs this function in both the raising and lowering mode. The bucket (or other attachment) may
be operated at any time, independent of the self-level valve, giving the operator the ability to reposition it throughout the work
cycle.
50051690 SELF LEVELING VALVE BUNDLE
MOUNTING INSTRUCTIONS
BUSH HOG 3545, 4045, 5045 & 6045 MID MOUNT FRONT END LOADERS
~ ASSEMBLY INSTRUCTIONS ~
NOTE: IF THE LOADER ATTACHMENT ROLLS COMPLETELY BACK WHILE LOWERING THE BOOM, DOWNWARD
MOTION WILL CEASE; ROLL THE ATTACHMENT FORWARD TO CONTINUE LOWERING.
ADJUSTMENT
Since the same self-level valve is used on different Bush Hog loaders, adjustment of the valve may be required when installed
on one particular loader or the other to obtain a preferred performance. There are two separate adjustment screws, one for the
raising mode and one for the lowering mode. Remove the dust cap to access the adjustment screw and loosen the jam nut
prior to adjusting. Adjustments should be made in 1/4 turn increments to achieve the desired motion according to the following
logic:
RAISING:
Clockwise
- More Rollback
Counterclockwise - More Dump
LOWERING:
Clockwise
- More Dump
Counterclockwise - More Rollback
Being a “needle valve” type adjustment, a point is reached when backing the adjustment screw out further (counterclockwise)
has no effect. The maximum effective range of adjustment in this situation is approximately 2-3 turns.
(2) 5/16” x 2 1/2” capscrew Gr.5
(2) 5/16” lockwasher
(2) 5/16” hex nut
7/8” ORB male to 3/4” JIC
male 90° elbow
3/4” JIC female to 3/4”
JIC male TEE
3/4” JIC female to 3/4”
JIC male 90° elbow
F
E
D
7/8” ORB male to
3/4” JIC male adapter
Lowering Adjustment
A
B
C
3/4” JIC female to 3/4”
JIC male TEE
Raising Adjustment
3/4” JIC female to 3/4”
JIC male 90° elbow
50051690 SELF LEVEL VALVE BUNDLE
PART NUMBER
25H50700
25H49136
50027314
50051610
68822
25H47571
25H43832
25H43235
25H40576
25H40475
25H40043
15528
15808
20504
51260
QTY.
PART NAME
4
HYDRAULIC HOSE 68”
1
DUAL SELF LEVEL VALVE
1
BAG OF HARDWARE
1
INSTRUCTION SHEET
1
CRATE
50027314 BAG OF HARDWARE
5
NYLON CABLE TIES
3
HYDRAULIC ADAPTER
2
HYDRAULIC TEE
5
HYDRAULIC ELBOW
3
HYDRAULIC ELBOW
4
HYDRAULIC ADAPTER
2
HEX NUT 5/16’’
2
LOCKWASHER 5/16’’
2
CAPSCREW 5/16” X 2-1/2” GR.5
1
BAG
7/8” ORB male to 3/4” JIC
male 90° elbow
7/8” ORB male to 3/4” 3/4” JIC female to 3/4”
JIC male 90° elbow
JIC male 90° elbow
1. Attach self leveling valve to the right hand pedestal using the (2) 5/16”- 2 1/2” Gr. 5 capscrews,
5/16” lockwashers and 5/16” hex nuts provided in kit.
2. In ports A, C, & D install a 7/8” ORB male - 3/4” JIC male straight thread adapter in each port. To
each straight adapter attach a 3/4” JIC female - 3/4” JIC male 90° elbow.
3. In ports B, E & F install a 7/8” ORB male - 3/4” JIC male 90° elbow into each port.
4. Install a 3/4” JIC female - 3/4” JIC male TEE to each of the 90° elbows in ports E & F with the single
leg pointing out. Install a 3/4” JIC female - 3/4” JIC male 90° elbow to each outward pointing leg of
TEE’s.
05/03/06
62-06
Instruction Sheet 50051610
PLUMBING INSTRUCTIONS
A-Attach to metal line on mainframe that is connected to the Base End of the lift cylinder (color code
blue) using a 68” hydraulic hose and adapter provided in kit.
B-Attach to control valve at port that controls Base End of the lift cylinder, (color code blue).
C-Attach to metal line on mainframe that is connected to the Rod End of the lift cylinder (color code
red) using a 68” hydraulic hose and adapter provided in kit.
F
E
D
D-Attach to control valve at port that controls Rod End of the lift cylinder, (color code red).
A
68’’Hoses in Kit
C
B
E- Attach one side of TEE to metal line on mainframe that is connected to the Base End of the bucket
cylinder (color code green) using a 68” hydraulic hose and adapter provided in kit.
Attach the additional side of TEE to the control valve port that controls the Base End of the bucket
cylinder.
(4) Unions 3/4” JIC male
F- Attach one side of TEE to metal line on mainframe that is connected to the Rod End of the bucket
cylinder (color code yellow) using a 68” hydraulic hose and adapter provided in kit.
Attach the additional side of TEE to the control valve port that controls the Rod End of the bucket
cylinder.
R.H. Lift Cylinder
L.H. Lift Cylinder
To Base End Lift (Blue)
To Rod End Lift (Red)
To Base End Bucket (Green)
To Rod End Bucket (Yellow)
Base
End
Base
End
Base
End
Base
End
FRONT
B
Rod End
L.H. Bucket Cylinder
C
Rod End
R.H. Bucket Cylinder
A
E - To control valve port for base end bucket.
D
F - To control valve port for rod end bucket.
E
B - To control valve port for base end lift.
F
D - To control valve port for rod end lift.
Note: Tie the (4) 68” hoses routed to the metal lines from the self leveling valve together with the ties
provided in the kit. Use one of the ties to secure the hose bundle to the inside of the pedestal by looping the tie through one of the square holes toward the inside rear of the pedestal and around the hose
bundle.
Rod End
Rod End
A-Attach to metal line on mainframe that is connected to the Base End of the lift cylinder (color code
blue) using a 68” hydraulic hose and adapter provided in kit.
B-Attach to control valve at port that controls Base End of the lift cylinder, (color code blue).
C-Attach to metal line on mainframe that is connected to the Rod End of the lift cylinder (color code
red) using a 68” hydraulic hose and adapter provided in kit.
F
E
D
D-Attach to control valve at port that controls Rod End of the lift cylinder, (color code red).
A
68’’Hoses in Kit
C
B
E- Attach one side of TEE to metal line on mainframe that is connected to the Base End of the bucket
cylinder (color code green) using a 68” hydraulic hose and adapter provided in kit.
Attach the additional side of TEE to the control valve port that controls the Base End of the bucket
cylinder.
(4) Unions 3/4” JIC male
F- Attach one side of TEE to metal line on mainframe that is connected to the Rod End of the bucket
cylinder (color code yellow) using a 68” hydraulic hose and adapter provided in kit.
Attach the additional side of TEE to the control valve port that controls the Rod End of the bucket
cylinder.
R.H. Lift Cylinder
L.H. Lift Cylinder
To Base End Lift (Blue)
To Rod End Lift (Red)
To Base End Bucket (Green)
To Rod End Bucket (Yellow)
Base
End
Base
End
Base
End
Base
End
FRONT
B
Rod End
L.H. Bucket Cylinder
C
Rod End
R.H. Bucket Cylinder
A
E - To control valve port for base end bucket.
D
F - To control valve port for rod end bucket.
E
B - To control valve port for base end lift.
F
D - To control valve port for rod end lift.
Note: Tie the (4) 68” hoses routed to the metal lines from the self leveling valve together with the ties
provided in the kit. Use one of the ties to secure the hose bundle to the inside of the pedestal by looping the tie through one of the square holes toward the inside rear of the pedestal and around the hose
bundle.
Rod End
Rod End
DESCRIPTION
The hydraulic self-leveling option is designed to be incorporated into Bush Hog’s standard loader hydraulic circuit. A dual selflevel valve controls flow throughout the system so as to maintain a nearly constant position of the loader attachment relative
to the ground. The valve performs this function in both the raising and lowering mode. The bucket (or other attachment) may
be operated at any time, independent of the self-level valve, giving the operator the ability to reposition it throughout the work
cycle.
50051690 SELF LEVELING VALVE BUNDLE
MOUNTING INSTRUCTIONS
BUSH HOG 3545, 4045, 5045 & 6045 MID MOUNT FRONT END LOADERS
~ ASSEMBLY INSTRUCTIONS ~
NOTE: IF THE LOADER ATTACHMENT ROLLS COMPLETELY BACK WHILE LOWERING THE BOOM, DOWNWARD
MOTION WILL CEASE; ROLL THE ATTACHMENT FORWARD TO CONTINUE LOWERING.
ADJUSTMENT
Since the same self-level valve is used on different Bush Hog loaders, adjustment of the valve may be required when installed
on one particular loader or the other to obtain a preferred performance. There are two separate adjustment screws, one for the
raising mode and one for the lowering mode. Remove the dust cap to access the adjustment screw and loosen the jam nut
prior to adjusting. Adjustments should be made in 1/4 turn increments to achieve the desired motion according to the following
logic:
RAISING:
Clockwise
- More Rollback
Counterclockwise - More Dump
LOWERING:
Clockwise
- More Dump
Counterclockwise - More Rollback
Being a “needle valve” type adjustment, a point is reached when backing the adjustment screw out further (counterclockwise)
has no effect. The maximum effective range of adjustment in this situation is approximately 2-3 turns.
(2) 5/16” x 2 1/2” capscrew Gr.5
(2) 5/16” lockwasher
(2) 5/16” hex nut
7/8” ORB male to 3/4” JIC
male 90° elbow
3/4” JIC female to 3/4”
JIC male TEE
3/4” JIC female to 3/4”
JIC male 90° elbow
F
E
D
7/8” ORB male to
3/4” JIC male adapter
Lowering Adjustment
A
B
C
3/4” JIC female to 3/4”
JIC male TEE
Raising Adjustment
3/4” JIC female to 3/4”
JIC male 90° elbow
50051690 SELF LEVEL VALVE BUNDLE
PART NUMBER
25H50700
25H49136
50027314
50051610
68822
25H47571
25H43832
25H43235
25H40576
25H40475
25H40043
15528
15808
20504
51260
QTY.
PART NAME
4
HYDRAULIC HOSE 68”
1
DUAL SELF LEVEL VALVE
1
BAG OF HARDWARE
1
INSTRUCTION SHEET
1
CRATE
50027314 BAG OF HARDWARE
5
NYLON CABLE TIES
3
HYDRAULIC ADAPTER
2
HYDRAULIC TEE
5
HYDRAULIC ELBOW
3
HYDRAULIC ELBOW
4
HYDRAULIC ADAPTER
2
HEX NUT 5/16’’
2
LOCKWASHER 5/16’’
2
CAPSCREW 5/16” X 2-1/2” GR.5
1
BAG
7/8” ORB male to 3/4” JIC
male 90° elbow
7/8” ORB male to 3/4” 3/4” JIC female to 3/4”
JIC male 90° elbow
JIC male 90° elbow
1. Attach self leveling valve to the right hand pedestal using the (2) 5/16”- 2 1/2” Gr. 5 capscrews,
5/16” lockwashers and 5/16” hex nuts provided in kit.
2. In ports A, C, & D install a 7/8” ORB male - 3/4” JIC male straight thread adapter in each port. To
each straight adapter attach a 3/4” JIC female - 3/4” JIC male 90° elbow.
3. In ports B, E & F install a 7/8” ORB male - 3/4” JIC male 90° elbow into each port.
4. Install a 3/4” JIC female - 3/4” JIC male TEE to each of the 90° elbows in ports E & F with the single
leg pointing out. Install a 3/4” JIC female - 3/4” JIC male 90° elbow to each outward pointing leg of
TEE’s.
05/03/06
62-06
Instruction Sheet 50051610
MOUNTING INSTRUCTIONS FOR
24H49871 GRAPPLE ATTACHMENT
1. Attach the screen to inner arm with (4) 1/2” x 5” capscrew, (4) 1/2” lockwashers,
and (4) 1/2” Hex Nuts.
2. Place a 1/2” shim on top of each hitch lug, on top of the bucket.
3. Center the screen, with inner arms attached, on rear of bucket with screen frame
resting on 1/2” shims. Clamp in place.
4. Using holes in inner arms as a guide, drill (6) 11/16” diameter holes in rear of
bucket.
5. Fasten in place with clamp plates inside bucket using (6) 5/8” x 5-1/2” capscrews,
(6) 5/8” lockwashers, (6) 5/8” Hex Nuts. Remove 1/2” shims.
6. Complete assembly as shown on page 2.
®
BUSH HOG
P.O. BOX 1039 • SELMA, AL 36702-1039
Page 1
Instruction Sheet 25H49884
25H49899
(4) Tines
Cross Tube to Tine
(4) 5/8” x 2-1/2” Capscrews
(4) 5/8” Lockwashers
(4) 5/8” Hex Nuts
Cross Tube to Tine
(4) 3/8” x 2-1/4” Capscrews
(4) 3/8” Lockwashers
(4) 3/8” Hex Nuts
Outer Arm to Cross Tube
to Bolt Pad
(4) 5/8” x 5” Capscrews
(4) 5/8” Lockwashers
(4) 5/8” Hex Nuts
25H49893
Bolt Pad
Outer Arm to Hydraulic Cylinder
(1) 25H49909 Pin 4”
(2) 21020614 Cotter Pins
25H49893
Bolt Pad
25H49896
Cross Tube
Outer Arm to Inner Arm
(1) 3/4” x 5” Capscrew
(1) 25H49907 Pivot Bushing
(1) 3/4” Lockwasher
(1) 3/4” Hex Nut
Inner Arm to Hydraulic Cylinder
(1) 25H49908 Pin 5”
(2) 21020614 Cotter Pins
25H49890
Outer Arm
Outer Arm to Cross Tube
to Bolt Pad
(4) 5/8” x 5” Capscrews
(4) 5/8” Lockwashers
(4) 5/8” Hex Nuts
Outer Arm to Hydraulic Cylinder
(1) 25H49909 Pin 4”
(2) 21020614 Cotter Pins
25H49890
Outer Arm
Inner Arm to Screen
(2) 1/2” x 5” Capscrews
(2) 1/2” Lockwashers
(2) 1/2” Hex Nuts
25H49900
Screen
25H47945
Hydraulic Cylinder
25H49886
Inner Arm
Outer Arm to Inner Arm
(1) 3/4” x 5” Capscrew
(1) 25H49907 Pivot Bushing
(1) 3/4” Lockwasher
(1) 3/4” Hex Nut
25H40122
Elbow 90°
25H49906
Clamp Plate
Inner Arm to Hydraulic Cylinder
(1) 25H49908 Pin 5”
(2) 21020614 Cotter Pins
25H47945
Hydraulic Cylinder
Clamp Plate to Loader Bucket
to Inner Arm
(4) 5/8” x 5-1/2” Capscrews
(4) 5/8” Lockwashers
(4) 5/8” Hex Nuts
25H40122
Elbow 90°
25H49906
Clamp Plate
Clamp Plate to Loader Bucket
to Inner Arm
(4) 5/8” x 5-1/2” Capscrews
(4) 5/8” Lockwashers
1560384
(4) 5/8” Hex Nuts
Hose 60”
50005655
(4) Double Clamps
Inner Arm to Screen
(2) 1/2” x 5” Capscrews
(2) 1/2” Lockwashers
(2) 1/2” Hex Nuts
1560384
Hose 60”
25H49886
Inner Arm
1560370
Hose 48”
25H40041
(2) Union Tee
1560370
Hose 48”
Double Clamp to Screen
(4) 3/8” x 1-1/4” Capscrews
(8) 3/8” Flatwashers
(4) 3/8” Lockwashers
(4) 3/8” Hex Nuts
1560384
Hose 60”
25D25683
Male Adaptor
25H43870
Male Tip
®
BUSH HOG
P.O. BOX 1039 • SELMA, AL 36702-1039
Page 2
Instruction Sheet 25H49884
24H49871 GRAPPLE ATTACHMENT
PART NUMBER
QTY.
25H47945
1560384
1560370
25H49906
25H49900
25H49899
25H49896
25H49893
25H49890
25H49886
24H49885
25H49884
2
4
2
2
1
4
1
2
2
2
1
1
PART NAME
Hydraulic Cylinder
Hydraulic Hose 60”
Hydraulic Hose 48”
Clamp Plate
Screen
Tine
Cross Tube
Bolt Pad
Outer Arm
Inner Arm
Bag Of Hardware
Instruction Sheet
24H49885 BAG OF HARDWARE
PART NUMBER
QTY.
19517
146
44064
15563
19486
20415
20763
44008
8151600
15806
44030
8151200
15812
15915
20048
1161212
21020614
25H49909
25H49908
25H49907
50005655
25H43870
25H40122
25H40041
25D25683
51260
2
2
2
18
18
6
8
4
4
4
4
8
8
8
4
4
4
2
2
2
4
2
4
2
2
1
PART NAME
Hex Nut 3/4” ZP
Lockwasher 3/4” ZP
Capscrew 3/4” x 5” G5 ZP
Hex Nut 5/8” ZP
Lockwasher 5/8” ZP
Capscrew 5/8” x 5-1/2” G5 ZP
Capscrew 5/8” x 5” G5 ZP
Capscrew 5/8” x 2-1/2” G5 ZP
Hex Nut 1/2” ZP
Lockwasher 1/2” ZP
Capscrew 1/2” x 5” ZP
Hex Nut 3/8” ZP
Lockwasher 3/8” ZP
Flatwasher 3/8” ZP
Capscrew 3/8” x 2-1/4” G5 ZP
Capscrew 3/8” x 1-1/4” G5 ZP
Cotter Pin 3/16” x 1-1/2”
Pin 4”
Pin 5”
Pivot Bushing
Double Clamp
Male Tip
Elbow 90°
Union Tee
Male Adaptor
Bag
P.O. Box 1039 ● Selma, AL 36702-1039
Telephone (334) 874-2700 ● www.bushhog.com