Bush Hog ZERO TURN MOWERS User Manual
BUSH HOG
ZERO TU RN
MO WERS
®
Operator’s Manual
ASSEMBLY ● OPERATION ● MAINTENANCE
199 $4.00
99221
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.
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.
ZERO TURN SERIES
TABLE OF CONTENTS
SECTION PAGE
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . 2
Dealer Preparation Check List . . . . . . . . . 3
Safety Precautions. . . . . . . . . . . . . . . . . . 4
Federal Laws and Regulations. . . . . . . . . 6
I INTRODUCTION AND DESCRIPTION . . 7
Introduction. . . . . . . . . . . . . . . . . . . . . . . . 7
Description . . . . . . . . . . . . . . . . . . . . . . . . 7
Specifications. . . . . . . . . . . . . . . . . . . . . . 8
II OPERATION. . . . . . . . . . . . . . . . . . . . . . . 9
General Safety . . . . . . . . . . . . . . . . . . . . . 9
Pre-Operation Checklist. . . . . . . . . . . . . 19
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mowing Recommendations . . . . . . . . . . 11
Mower Deck Tilt-Up Procedure . . . . . . . 11
Lowering & Reattaching Deck . . . . . . . . 11
III MAINTENANCE. . . . . . . . . . . . . . . . . . . 13
Maintenance Schedule. . . . . . . . . . . . . . 13
SECTION PAGE
Engine . . . . . . . . . . . . . . . . . . . . . . . . . .14
Battery . . . . . . . . . . . . . . . . . . . . . . . . . .14
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Mower Blades . . . . . . . . . . . . . . . . . . . . .14
Checking Gearbox Fluid . . . . . . . . . . . . .14
Changing Gearbox Fluid . . . . . . . . . . . .14
Neutral Adjustment . . . . . . . . . . . . . . . . .15
Drive Adjustments . . . . . . . . . . . . . . . . .15
Test Drive Operations . . . . . . . . . . . . . . .15
Leveling The Deck . . . . . . . . . . . . . . . . .15
Deck Belt Adjustment . . . . . . . . . . . . . .16
Deck Belt Replacement . . . . . . . . . . . . .16
Start Up Maintenance . . . . . . . . . . . . . .18
Troubleshooting . . . . . . . . . . . . . . . . . . .19
IV ASSEMBLY . . . . . . . . . . . . . . . . . . . . . .20
Wiring Schematics . . . . . . . . . . . . . . . . .23
Safety Decals . . . . . . . . . . . . . . . . . . . . .25
Torque Specifications . . . . . . . . . . . . . . .27
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.
DANGER: Indicates an imminently
hazardous situation which, if not avoided, will result in death or serious injury.
This signal word is to be limited to the
most extreme situations.
WARNING: Indicates a potentially
hazardous situation which, if not
avoided, could result in death or
serious injury.
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CAUTION: Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury. It
may also be used to alert against
unsafe practices.
®
BUSH HOG
ZERO TURN MOWER 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 two (2) years 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 war-
ranties, implied or expressed, INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE and any liability for incidental and consequential damages with respect to
the sale or use of the items warranted. Such incidental and consequential damages shall include but not be
limited to: transportation charges other than normal freight charges; cost of installation other than cost
approved by Bush Hog; duty; taxes; charges for normal service or adjustment; loss of crops or any other loss of
income; rental of substitute equipment, expenses due to loss, damage, detention or delay in the delivery of
equipment or parts resulting from acts beyond the control of Bush Hog.
THIS LIMITED WARRANTY SHALL NOT APPLY:
1. To transportation to and from dealership or service calls made by dealers, ie, driving time, towing,
pickup and delivery.
2. To vendor items which carry their own warranties, such as engines, batteries, tires, and tubes.
3. If the unit has been subjected to misapplication, abuse, misuse, negligence, fire or other accident.
4. If parts not made or supplied by Bush Hog have been used in connection with the unit, if, in the sole judge-
ment of Bush Hog such use affects its performance, stability or reliability.
5. If the unit has been altered or repaired outside of an authorized Bush Hog dealership in a manner
which, in the sole judgement of Bush Hog, affects its performance, stability or reliability.
6. To normal maintenance service and normal replacement items such as gearbox lubricant, hydraulic fluid,
worn blades, or to normal deterioration of such things as belts and exterior finish due to use or
exposure.
7. To expendable or wear items such as 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.
MAKE CERTAIN THE WARRANTY REGISTRATION
CARD HAS BEEN FILED WITH BUSH HOG/
SELMA, ALABAMA
MODEL NUMBER
SERIAL NUMBER
DATE OF RETAIL SALE
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DEALER PREPARATION CHECK LIST
ZERO TURN
BEFORE DELIVERING MACHINE — The following check list should be completed.
Use the Operator’s Manual as a guide.
❒ 1. Engine has been serviced.
❒ 2. Battery fluid level is checked.
❒ 3. Low oil pressure warning buzzer checked for operation.
❒ 4. Kill switches checked for operation.
❒ 5. Assembly completed.
❒ 6. Gearbox filled with oil.
❒ 7. All fittings lubricated.
❒ 8. Hydraulic Reservoir filled with oil.
❒ 9. All shields in place and in good condition.
❒ 10. All fasteners torqued to specifications given in Torque Chart.
❒ 11. All decals in place and readable. (See decal page.)
❒ 12. Overall condition good (i.e. paint, welds)
❒ 13. Parking brake checked and adjusted, if necessary.
❒ 14. Steering checked and adjusted, if necessary.
❒ 15. Check tire pressure.
❒ 16. Operators manual has been delivered to owner and he has been instructed
on the safe and proper use of the cutter.
Dealer’s Signature
Purchaser’s Signature
THIS CHECKLIST T
It is the responsibility of the dealer to complete the procedures listed
above before delivery of this implement to the customer.
O REMAIN IN OWNER’S MANUAL
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IMPORTANT SAFETY PRECAUTIONS
This symbol is used to call attention to safety precautions that should be followed by
the operator to avoid accidents. When you
see this symbol, carefully read the message
that follows and heed its advice. Failure to
comply with safety precautions could result
in serious bodily injury.
In addition to the design and configuration of equipment, hazard control and accident prevention are dependent upon the awareness, concern, prudence and proper training of personnel in the operation, transport,
maintenance and storage of equipment. Lack of attention to safety can result in accident, 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 manual for specific operating and maintenance procedures. Read this manual and review the safety precautions often until you know the limitations.
ACCIDENT PATTERNS TO AVOID
1. CONTACT WITH THE ROTATING BLADE - This accident usually happens when the operator is clear
ing the discharge chute of grass, (especially when the grass is wet), or when the operator adjusts the
machine without turning it off and waiting for the blades to completely stop.
2. PROPELLED OBJECTS - Sticks, rocks, wires, and other objects can be propelled out through the discharge chute or from under the mower housing. Bystanders are particularly vulnerable.
3. GRASS CATCHER OR GUARD - The mower shall not be operated without either the entire grass catcher or guard in place.
4. OVERTURNING - This happens when riding mowers are used on steep slopes, embankments or hills.
The operator in these cases can come in contact with blades or sustain injuries during a fall.
5. MOWER RUNNING OVER THE VICTIM - This usually happens when a riding mower is driven in reverse.
The accident victims are most often young children whom, unseen by the operator of the mower, were in
the area being mowed.
WE SHARE YOUR DESIRE TO PROTECT YOURSELF, YOUR FAMILY, YOUR FRIEND AND YOUR
NEIGHBORS FROM ACCIDENTAL INJURY. OBSERVING AND ENFORCING THE FOLLOWING GUIDE
LINES WILL HELP TO INSURE THE SAFETY OF EVERYONE.
SAFETY INSTRUCTIONS AND RECOMMENDATIONS
1. PEOPLE WHO OPERATE, SERVICE, OR ARE OTHERWISE ASSOCIATED with the Zero Turning
Radius Mower should be trained in its proper use and warned of its dangers. Before operating, adjusting,
or servicing the Zero Turning Radius Mower they should read and understand this entire manual and the
owner’s engine manual.
2. AVOID CONTACT WITH MOVING PARTS. Keep hands and feet from under mowing deck and away
from blades at all times. Turn engine (motor) off if you must unclog the chute.
3. AVOID HILLS AND SLOPES. Use extreme caution when mowing up or down slopes. NEVER mow
across the face of a slope. If a slope must be ascended, drive up the slope; back down when descending. Reduce speed and use caution to start, stop and maneuver. To prevent loss of control on a slope,
avoid sharp turns, sudden changes in direction, and sudden stops and starts.
4. DISENGAGE POWER TO MOWER BEFORE BACKING UP. Do not mow in reverse unless absolutely
necessary and then only after turning around and observing the entire area behind the mower. Go slowly.
Most “running over victim” accidents occur in reverse.
5. BEGINNING OPERATORS SHOULD LEARN HOW TO STEER the Zero Turning Radius Mower before
attempting to mow. Start with slow engine speed and drive without the blades engaged in open area until
comfortable with the machine.
6. KNOW HOW TO STOP QUICKLY. Know the location and operation of every control, especially how to brake and
how to disengage the mower blades.
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SAFETY CONTINUED
7. DO NOT MOVE THE CONTROL LEVERS from forward position to reverse position rapidly. The speed
and/or direction of travel is affected instantly by movement of the Control Levers.
8. DO NOT ALLOW CHILDREN TO OPERATE MOWER. Do not allow others who have not had instructions to operate mower.
9. ALWAYS TURN ENGINE OFF AND REMOVE KEY before leaving mower to prevent children and
inexperienced operators from starting the engine. Never leave the mower unattended with engine run
ning. Always wait for all moving parts and all sounds to stop before leaving operator’s seat. Always set
the parking brake on an unattended mower.
10. WEAR STURDY, ROUGH-SOLED WORK SHOES AND CLOSE-FITTING SLACKS AND SHIRTS.
Never operate mower in bare feet, sandals or sneakers.
11. WEAR PERSONAL PROTECTIVE EQUIPMENT such as, but not limitied to, protection for eyes, ears, feet, hands
and head when operating or repairing equipment. Do not wear loose clothing or jewelry that may catch on equipment moving parts.
12. NEVER CARRY PASSENGERS.
13. KNOW THE AREA YOU ARE TO MOW. Watch for hidden dangers such as rocks, roots, sticks, holes,
bumps, and drop-offs, etc. Before mowing, pick up all debris in area to be mowed. Sharp and hard
objects can be propelled at a high speed and can act like shrapnel. Walk through tall grass BEFORE
MOWING to make sure there are no hidden dangers. Mow higher than desired in tall grass to expose
any hidden objects and/or obstacles, clean the area, and then mow to the desired height.
14. BE SURE THE AREA IS CLEAR of other people before mowing. Stop machine if anyone enters the area.
15. NEVER REFUEL A MOWER INDOORS. Allow the engine time to cool before refueling. Unseen vapors may be
ignited by a spark. Always clean up spilled gasoline. Never run the engine indoors in a garage
or any other closed building. Allow engine to cool before storing in any enclosure. The engine exhaust
and gasoline fumes are dangerous.
16. NEVER REMOVE THE FUEL CAP or add gasoline to a running or hot engine or an
engine that has not been allowed to cool for several minutes after running. Always make sure the gas
cap is in place.
17. DO NOT SMOKE AROUND THE MOWER or the gasoline storage container. Gasoline fumes can easily ignite.
18. KEEP GASOLINE IN A WELL-VENTILATED AREA away from your living quarters and in tightly
capped safety cans. Never store mower with gasoline in the tank inside a building where fumes may
reach open flame or spark.
19. DISENGAGE BLADE, STOP ENGINE, ENGAGE PARKING BRAKE AND REMOVE IGNITION KEY before any servicing. Be sure all moving parts and all sounds have stopped. Let engine cool and disconnect the spark plugs so the
engine cannot start by accident. A SLIGHT ROTATION OF THE BLADES COULD START THE ENGINE.
20. KEEP ALL NUTS, BOLTS, AND SCREWS TIGHT to be sure equipment is in safe working condition, especially blade bolts.
21. VEHICLE SHOULD BE STOPPED AND INSPECTED FOR DAMAGE after striking a foreign object and
the damage should be repaired before restarting and operating the equipment. Stop immediately and
check for damage or loose parts if mower should start vibrating.
22. DISENGAGE BLADES BEFORE DRIVING ACROSS WALKS or projecting objects.
23. KEEP SAFETY DEVICES AND GUARDS IN PLACE. If any of the safety switches become inoperable,
have them repaired immediately.
24. DO NOT STEP OR STAND ON THE MOWER HOUSING. Step or stand only on the tread areas on the deck.
25. WATCH OUT FOR TRAFFIC near roadways and when crossing roads.
26. THIS MACHINE IS NOT MEANT FOR HIGHWAY OR STREET USE. It is not a recreational vehicle and it should not
be operated as such.
27. DO NOT USE MOWER WHEN GRASS IS WET OR SLIPPERY.
28. MOW ONLY DURING DAYLIGHT.
29. ALWAYS DISENGAGE THE MOWER BLADE CLUTCH when transporting.
30. If your tractor is equipped with ROPS (Roll-Over Protection Structure), you must wear your seat belt.
5
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 is, or will be involved.” These will include (but are not limited to) instructions to:
employee in the safe operation and servicing of all equipment with which the
Keep all guards in place when the machine is in operation;
Permit no riders on equipment;
Stop engine, disconnect the power source, and wait for all machine movement to stop before
servicing, adjusting, cleaning or unclogging the equipment, except where the machine must be
running to be properly serviced or maintained, in which case the employer shall instruct employees
as to all steps and procedures which are necessary to safely service or maintain the equipment.
Make sure everyone is clear of machinery before starting the engine, engaging power, or operating
the machine.
Child Labor Under 16 Years Old
Some regulations specify that no one under the age of 16 may operate power machinery. It is your
responsibility to know what these regulations are in your own area or situation. (Refer to U.S. Dept. of
Labor, Employment Standard Administration, Wage & Home Division, Child Labor Bulletin #102.)
6
SECTION I
INTRODUCTION AND DESCRIPTION
INTRODUCTION
We are pleased to have you as a Bush Hog customer. Your Bush Hog Zero Turn Mower has been
carefully designed to give maximum service with
minimum down time. This manual is provided to give
you the necessary operating and maintenance
instructions for keeping your mower in top operating
condition. Please read this manual thoroughly.
Understand what each control is for and how to use
it. Observe all safety precautions decaled on the
machine and noted throughout the manual for safe
operation of implement. If any assistance or additional information is needed, contact your authorized
Bush Hog dealer. Optional equipment such as Roll
Over Protection Systems, Seat Belts or Front Blade
Assemblies are covered in their individual instructions, which come with the kits.
NOTE:
All references made to right, left, front, rear, top or bottom is as viewed facing the direction of forward travel
with implement properly attached to power unit.
DESCRIPTION
The Zero Turn is intended for use on large lawns and
other maintained areas where a smooth, even cut is
desired and superior maneuverability is needed. The
tractor unit consists of either an 18 hp Kohler, 22 hp
Kohler, 25 hp Kohler, or 22 hp water cooled
Kawasaki, two cylinder engine, and a power take-off
(PTO) shaft. The engine has a pressurized oil lubrication system with spin-on type filter, fused electronic ignition, electric start and a 5 gallon fuel tank.
Two hydrostatic pumps and two wheel motors are
used for propelling and steering. The pumps are belt
driven by the engine output shaft. One lever for each
drive controls both speed and direction. This independent control of each drive wheel coupled with
continuously variable speed selection gives the Zero
Turn mower exceptional maneuverability.
The mower deck is driven by a power take-off
(PTO) shaft from the engine. An electrically controlled clutch is used to engage/disengage the PTO.
The mower attachment is available in three sizes;
48”, 54”, and 60” cut. The mower has three uplift
blades, driven by the input gearbox through a single
V-belt controlled by a spring loaded tensioner.
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