Page 1
ESTATE
COMMERCIAL
SERIES
Zero Turn Riding Mower
Published 01/13 Part No. 50068108
OPERATOR’S MANUAL
This Operator's Manual is an integral part of the safe operation of this machine and must
be maintained with the unit at all times. READ,
and Operation Instructions contained in this manual before operating the equipment. C01-
Cover
UNDERSTAND, and FOLLOW the Safety
BUSH HOG
®
2501 Griffin Ave.
Selma, AL 36703
334-874-2700
www.bushhog.com
©2010 Alamo Group Inc.
$0.00
Page 2
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, 2501 Griffin Ave. Selma, Al. 36703. Most of our manuals can also
be downloaded from our website at www.servis-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 WITH
OUT 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 IM-
PLEMENT WITHOUT ALL SHIELDS IN PLACE.
Page 3
EC SERIES
ZERO TURN RIDING MOWER
TABLE OF CONTENTS
SECTION PAGE
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . 2
Dealer Preparation Check List . . . . . . . . . 3
Safety Alert Symbols . . . . . . . . . . . . . . . . 4
Safety Precautions . . . . . . . . . . . . . . . . . . 5
Federal Laws and Regulations. . . . . . . . . 8
I INTRODUCTION AND DESCRIPTION . . 9
Introduction. . . . . . . . . . . . . . . . . . . . . . . . 9
Description . . . . . . . . . . . . . . . . . . . . . . . . 9
Specifications . . . . . . . . . . . . . . . . . . . . . 10
II OPERATION . . . . . . . . . . . . . . . . . . . . . 11
General Safety . . . . . . . . . . . . . . . . . . . . 11
Pre-Operation Checklist . . . . . . . . . . . . . 11
Operation . . . . . . . . . . . . . . . . . . . . . . . . 12
Mowing Recommendations . . . . . . . . . . 14
III MAINTENANCE. . . . . . . . . . . . . . . . . . . 15
Maintenance Schedule. . . . . . . . . . . . . . 15
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Tachometer / Hour Meter . . . . . . . . . . . 16
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SECTION PAGE
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Mower Blades . . . . . . . . . . . . . . . . . . . . .16
Cleaning Grass Buildup . . . . . . . . . . . . .16
Motion Control Adjustment . . . . . . . . . . .17
Drive Adjustments . . . . . . . . . . . . . . . . .17
Test Drive Operations . . . . . . . . . . . . . .17
Leveling The Deck and Setting
the Counter Balance Spring Tension . . .18
Deck Belt Adjustment . . . . . . . . . . . . . .18
Deck Belt Replacement . . . . . . . . . . . . .18
Start Up Maintenance . . . . . . . . . . . . . . .19
Parking Brake Adjustment . . . . . . . . . . .19
Parking Brake Cable Replacement . . . .20
Troubleshooting . . . . . . . . . . . . . . . . . . .21
IV ASSEMBLY . . . . . . . . . . . . . . . . . . . . . .22
Wiring Schematics . . . . . . . . . . . . . . . . .24
Safety Decals . . . . . . . . . . . . . . . . . . . . .25
Torque Specifications . . . . . . . . . . . . . . .27
Optional Equipment List . . . . . . . . . . . . .28
Slope Angle Guide . . . . . . . . . . . . . . . . .29
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
Page 4
EC ZERO TURN RIDING MOWER LIMITED WARRANTY
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
Bush Hog warrants to the original purchaser of this new Zero Turn Riding Mower, purchased from an authorized
Bush Hog dealer, that the equipment be free from defects in material and workmanship for a period of three (3) years from
date of retail sale. The three year limited warranty (third year parts only) includes drive train, electromagnetic clutch, deck and
cutter spindles. See dealer for complete details. The obligation of Bush Hog to the purchaser under this warranty is limited to
the repair or replacement of defective parts. NOTE: This warranty covers parts and labor for the first two years and
parts only during the third year.
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 equip-ment 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 PUR-
POSE 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 transportationto and from dealership or servicecalls made bydealers,ie, driving time, towing, pickup and delivery.
2. To vendor items which carry their own warranties, such as engines, batteries, tires, and tubes.
3. If the unit has been subjected to misapplication, abuse, misuse, negligence, fire or other accident.
4. If parts not made or supplied by Bush Hog have been used in connection with the unit, if, in the sole judgement of Bush
Hog such use affects its performance, stability or reliability.
5. If the unit has been altered or repaired outside of an authorized Bush Hog dealership in a manner which, in the sole
judgement of Bush Hog, affects its performance, stability or reliability.
6. To normal maintenance service and normal replacement items such as gearbox lubricant, hydraulic fluid, worn blades,
or to normal deterioration of such things as belts and exterior finish due to use or exposure.
7. To expendable or wear items such as teeth, chains, sprockets, belts, springs and any other items that in the company’s
sole judgement is a wear item.
NO EMPLOYEE OR REPRESENTATIVE OF BUSH HOG IS AUTHORIZED TO CHANGE THIS LIMITED WARRANTY IN
ANY WAY OR GRANT ANY OTHER WARRANTY UNLESS SUCH CHANGE IS MADE IN WRITING AND SIGNED BY BUSH
HOG’S SERVICE MANAGER, 2501 GRIFFIN AVE., SELMA, ALABAMA 36703
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
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
HAS BEEN FILED ON LINE WITH BUSH HOG / SELMA
ALABAMA
MODEL NUMBER
SERIAL NUMBER
DATE OF RETAIL SALE
2
Page 5
DEALER PREPARATION CHECK LIST
EC ZERO TURN RIDING MOWER
BEFORE DELIVERING MACHINE — The following check list should be completed.
Use the Operator’s Manual as a guide.
r 1. Engine has been serviced.
r 2. Battery fluid level is checked.
r 3. Low oil pressure light checked for operation.
r 4. Operator interlock switches checked for operation.
r 5. Assembly completed.
r 6. All fittings lubricated.
r 7. Hydraulic Reservoir filled to appropriate level with oil.
r 8. All shields in place and in good condition.
r 9. Roll-over Protective Structure is installed and retractable seat belt functions
properly.
r 10. All fasteners torqued to specifications given in Torque Chart.
r 11. All decals in place and readable. (See decal page.)
r 12. Overall condition good (i.e. paint, welds)
r 13. Parking brake checked and adjusted, if necessary.
r 14. Steering checked and adjusted, if necessary.
r 15. Check tire pressure.
r 16. Warranty information has been registered on line with Bush Hog.
r 17. Operators manual has been delivered to owner and he has been instructed
on the safe and proper use of the cutter.
Dealer’s Signature
Purchaser’s Signature
THIS CHECKLIST TO REMAIN IN OWNER’S MANUAL
It is the responsibility of the dealer to complete the procedures listed
above before delivery of this implement to the customer.
3
Page 6
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.
White letters on RED
Black letters on ORANGE
Black letters on YELLOW
This signal word indicates a potentially hazardous situation which,
if not avoided, will result in death or serious injury.
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.
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.
4
Page 7
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
clearing the discharge chute of grass, (especially when the grass is wet), or when the operator adjusts
the machine without turning it off and waiting for the blades to completely stop.
2. PROPELLED OBJECTS - Sticks, rocks, wires, and other objects can be propelled out through the discharge chute or from under the mower housing. Bystanders are particularly vulnerable.
3. GRASS DISCHARGE CHUTE - The mower shall not be operated without the grass discharge chute
in its lowered position.
4. OVERTURNING - This happens when riding mowers are used on steep slopes, embankments or hills.
The operator in these cases can come in contact with blades or sustain injuries during a fall.
5.
MOWER RUNNING OVER THE VICTIM - This usually happens when a riding mower is driven in reverse.
The accident victims are most often young children whom, unseen by the operator of the mower, were
in the area being mowed.
WE SHARE YOUR DESIRE TO PROTECT YOURSELF, YOUR FAMILY, YOUR FRIENDS AND YOUR
NEIGHBORS FROM ACCIDENTAL INJURY. OBSERVING AND ENFORCING THE FOLLOWING GUIDE
LINES WILL HELP TO INSURE THE SAFETY OF EVERYONE.
SAFETY INSTRUCTIONS AND RECOMMENDATIONS
1. PEOPLE WHO OPERATE, SERVICE, OR ARE OTHERWISE ASSOCIATED with the Zero Turning
Riding Mower should be trained in its proper use and warned of its dangers. Before operating, adjusting,
or servicing the Zero Turning Riding Mower they should read and understand this entire manual and the
engine manual.
2. AVOID CONTACT WITH MOVING PARTS. Keep hands and feet from under mowing deck and away
from blades at all times. Turn engine (motor) off if you must unclog the chute.
3. AVOID HILLS AND SLOPES. Use EXTREME caution when mowing and/or turning on slopes as loss of traction
and/or tip-over could occur. Drive slower on slopes. DO NOT mow slopes greater than 15 degrees. Watch for
ditches, holes, rocks, dips and rises, which change the operating angle. Keep away from drop-offs and steep
banks. Avoid sudden starts when mowing uphill - mower may tip backwards. Loss of traction may occur going
downhill - weight transfer to the front wheels may cause drive wheels to slip and cause loss of braking. DO NOT
mow slopes when grass is wet - slippery conditions affect steering and reduce traction and braking. The operator
is responsible for safe operation on slopes.
4. DISENGAGE POWER TO MOWER BEFORE BACKING UP. Do not mow in reverse unless absolutely
necessary and then only after turning around and observing the entire area behind the mower. Go slowly.
Most “running over victim” accidents occur in reverse.
5. BEGINNING OPERATORS SHOULD LEARN HOW TO STEER the Zero Turning Riding Mower before
attempting to mow. Start with slow engine speed and drive without the blades engaged in open area until
comfortable with the machine.
5
Page 8
SAFETY CONTINUED
6. KNOW HOW TO STOP QUICKLY. Know the location and operation of every control, especially how to brake and
how to disengage the mower blades.
7. DO NOT MOVE THE CONTROL LEVERS from forward position to reverse position rapidly. The speed
and/or direction of travel is affected instantly by movement of the Control Levers.
8. DO NOT ALLOW CHILDREN TO OPERATE MOWER. Do not allow others who have not had instructions to operate mower. Do not operate the mower when children or others are in the area.
9. ALWAYS TURN ENGINE OFF AND REMOVE KEY before leaving mower to prevent children and
inexperienced operators from starting the engine. Never leave the mower unattended with engine running. Always wait for all moving parts and all sounds to stop before leaving operator’s seat. Always set
the parking brake on an unattended mower.
10. WEAR STURDY, ROUGH-SOLED WORK SHOES AND CLOSE-FITTING TROUSERS AND SHIRTS.
Never operate mower in bare feet, sandals or sneakers.
11. WEAR PERSONAL PROTECTIVE EQUIPMENT such as, but not limitied to, protection for eyes, ears, feet, hands
and head when operating or repairing equipment. Do not wear loose clothing or jewelry that may catch on equipment moving parts.
12. NEVER CARRY PASSENGERS.
13. KNOW THE AREA YOU ARE TO MOW. Watch for hidden dangers such as rocks, roots, sticks, holes,
bumps, and drop-offs, etc. Before mowing, pick up all debris in area to be mowed. Sharp and hard
objects can be propelled at a high speed and can act like shrapnel. Walk through tall grass BEFORE
MOWING to make sure there are no hidden dangers. Mow higher than desired in tall grass to expose
any hidden objects and/or obstacles, clean the area, and then mow to the desired height.
14. BE SURE THE AREA IS CLEAR of other people before mowing. Stop machine if anyone enters the area.
15. NEVER REFUEL A MOWER INDOORS. Allow the engine time to cool before refueling. Unseen vapors may be
ignited by a spark. Always clean up spilled gasoline. Never run the engine indoors in a garage
or any other closed building. Allow engine to cool before storing in any enclosure. The engine exhaust
and gasoline fumes are dangerous.
16. NEVER REMOVE THE FUEL CAP or add gasoline to a running or hot engine or an
engine that has not been allowed to cool for several minutes after running. Always make sure the gas
cap is in place.
17. DO NOT SMOKE AROUND THE MOWER or the gasoline storage container. Gasoline fumes can easily ignite.
18. KEEP GASOLINE IN A WELL-VENTILATED AREA away from your living quarters and in tightly
capped safety cans. Never store mower with gasoline in the tank inside a building where fumes may
reach open flame or spark.
19. DISENGAGE BLADES, STOP ENGINE, ENGAGE PARKING BRAKE AND REMOVE IGNITION KEY before any
servicing. Be sure all moving parts and all sounds have stopped. Let engine cool and disconnect the spark plugs
so the engine cannot start by accident.
20. KEEP ALL NUTS, BOLTS, AND SCREWS TIGHT to be sure equipment is in safe working condition, especially blade bolts.
21. VEHICLE SHOULD BE STOPPED AND INSPECTED FOR DAMAGE after striking a foreign object and
the damage should be repaired before restarting and operating the equipment. Stop immediately and
check for damage or loose parts if mower should start vibrating.
22. DISENGAGE BLADES BEFORE DRIVING ACROSS WALKS or projecting objects or transporting.
23. KEEP SAFETY DEVICES AND GUARDS IN PLACE. If any of the safety switches become inoperable,
have them repaired immediately.
24. DO NOT STEP OR STAND ON THE MOWER HOUSING. Step or stand only on the tread areas on the deck.
25. WATCH OUT FOR TRAFFIC near roadways and when crossing roads.
26. THIS MACHINE IS NOT MEANT FOR HIGHWAY OR STREET USE. It is not a recreational vehicle and it should
not be operated as such.
27. WHEN FEASIBLE, DO NOT USE MOWER WHEN GRASS IS WET OR SLIPPERY.
28. MOW ONLY IN DAYLIGHT OR GOOD ARTIF ICIAL LIGHT.
6
Page 9
SAFETY CONTINUED
29. ALWAYS DISENGAGE THE MOWER BLADE CLUTCH when transporting.
30. Do not operate the mower under influence of drugs or alcohol.
31. Do not change the engine governor settings or overspeed the engine. Operating an engine at excessive speed may
increase the hazard of personal injury.
TOWING
1. Use for towing only if equipped with a Bush Hog hitch kit. Do not attach towed equipment except at the hitch point.
2. Never allow children or others in or on towed equipment.
3. On slopes, the weight of the towed equipment may cause loss of traction and loss of control.
4. Travel slowly and allow extra distance to stop.
SLOPE OPERATION
DANGER
POTENTIAL HAZARD
Mowing on wet grass or steep slopes can cause
sliding and loss of control.
WHAT CAN HAPPEN
Wheels dropping over edges, ditches, steep banks,
or water can cause injury, or death by drowning.
HOW TO AVOID THE HAZARD
Do not mow slopes when grass is wet.
Do not mow near drop-offs or near water.
Do not mow slopes greater than 15 degrees.
Reduce speed and use extreme caution on slopes.
Avoid sudden turns or rapid speed changes.
Do not ride or operate the ZTR if the mower head
has been removed.
1. Use EXTREME caution when mowing and/or turning on slopes as loss of traction and/or tip-over could occur. The
operator is responsible for safe operation.
2. See inside of the back cover to determine the approximate slope angle of the area to be mowed.
3. Use a walk behind mower and/or a hand trimmer near drop-offs, ditches, steep banks or water. This area can be dangerous.
4. Progressively greater care is needed as the slope increases.
5. Always avoid sudden starting or stopping on a slope. If tires lose traction, disengage the blades and proceed slowly down the
slope.
6. Avoid sudden starts when mowing uphill. Mower may tip backwards.
7. Be aware that loss of traction may occur going downhill. Weight transfer to the front wheels may cause drive wheels to slip and
cause loss of braking and steering.
8. Watch for ditches, holes, rocks, dips, and rises that change the operating angle, as rough terrain could overturn the machine.
Tall grass can hide obstacles.
Water
Danger
Zone
Safe
Zone
9. Remove or mark obstacles such as rocks, tree limbs, etc. from the ,mowing area. Tall grass can hide obstacles.
10. Use extreme care with grass catches or attachments. These can change the stability of the machine and cause loss of control.
11. Follow the manufacturer’s recommendations for counterweights to improve stablity.
12.. Check carefully for overhead clearances (ie. branches, doorways, and electrical wires) before driving under objects and do
not contact them.
SLOPE ANGLE GUIDE LOCATED INSIDE REAR COVER
7
Page 10
IMPORTANT FEDERAL LAWS AND REGULATIONS* CONCERNING
EMPLOYERS, EMPLOYEES AND OPERATIONS.
*(This section is intended to explain in broad terms the concept and effect of the following federal laws and
regulations. It is not intended as a legal interpretation of the laws and should not be considered as such).
U.S. Public Law 91-596 (The Williams-Steiger Occupational and Health Act of 1970) OSHA
This Act Seeks:
“...to assure so far as possible every working man and woman in the nation safe and healthful working
conditions and to preserve our human resources...”
DUTIES
Sec. 5 (a) Each employer—
(1) shall furnish to each of his employees employment and a place of employment
which are free from recognized hazards that are causing or are likely to cause
death or serious physical harm to his employees;
(2) shall comply with occupational safety and health standards promulgated under
this Act.
(b) Each employee shall comply with occupational safety and health standards
and all rules, regulations and orders issued pursuant to this Act which are
applicable to his own actions and conduct.
OSHA Regulations
Current OSHA regulations state in part: “At the time of initial assignment and at least annually thereafter, the
employer shall instruct every employee in the safe operation and servicing of all equipment with which the
employee is, or will be involved.” These will include (but are not limited to) instructions to:
Keep all guards in place when the machine is in operation;
Permit no riders on equipment;
Stop engine, disconnect the power source, and wait for all machine movement to stop before
servicing, adjusting, cleaning or unclogging the equipment, except where the machine must be
running to be properly serviced or maintained, in which case the employer shall instruct employees
as to all steps and procedures which are necessary to safely service or maintain the equipment.
Make sure everyone is clear of machinery before starting the engine, engaging power, or operating
the machine.
Child Labor Under 16 Years Old
Some regulations specify that no one under the age of 16 may operate power machinery. It is your
responsibility to know what these regulations are in your own area or situation. (Refer to U.S. Dept. of
Labor, Employment Standard Administration, Wage & Home Division, Child Labor Bulletin #102.)
8
Page 11
SECTION I
INTRODUCTION AND DESCRIPTION
INTRODUCTION
We are pleased to have you as a Bush Hog customer.
Your Bush Hog Zero Turn Riding Mower has been
carefully designed to give maximum service with minimum down time. This manual is provided to give you
the necessary operating and maintenance instructions for keeping your mower in top operating condition. Please read this manual thoroughly. Understand
what each control is for and how to use it. Observe all
safety precautions decaled on the machine and noted
throughout the manual for safe operation of the implement. If any assistance or additional information is
needed, contact your authorized Bush Hog dealer.
NOTE:
All references made to right, left, front, rear, top or bottom is as viewed facing the direction of forward travel.
DESCRIPTION
The Zero Turn riding mower is intended for use on
lawns and other frequently maintained areas where a
smooth, even cut is desired and superior maneuverability is needed. The tractor unit consists of a
Kawasaki or Kohler twin cylinder engine. The engine
has a pressurized oil lubrication system with spin-on type
filter, fused electronic ignition, electric start and an 8 gallon fuel system.
Two hydrostatic transaxles 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 attachment is available in 55” or 61” cutting widths. The mower has three cutting blades, driven
by an electromagnetic clutch through a single v-belt.
9
Page 12
CONTROLS
CONTROL LOCATIONS
OPERATOR INTERLOCK SYSTEM
Your Bush Hog Zero Turn Riding Mower is equipped
with an Operator Interlock System that is designed to
help prevent possible serious injuries. Understanding
and maintaining this system is vital for safe operation.
To Start Engine:
1. Blades (PTO) must be disengaged.
2. Control levers in neutral (swung out).
3. Parking brake set.
The Engine Will Kill If:
1. The operator leaves the seat with:
a. The control levers out of neutral (swung in).
b. The blades are engaged.
c. The parking brake is off.
d. All of the above.
2. The park brake is on before the control levers
are swung out.
DO NOT OPERATE MOWER IF SAFETY SWITCHES
ARE NOT OPERATING PROPERLY.
WARNING
DO NOT OPERATE MACHINE UNLESS INTERLOCK SYSTEM FUNCTIONS PROPERLY. FAILURE TO HEED THIS WARNING
MAY RESULT IN SERIOUS INJURY, DEATH
OR EQUIPMENT DAMAGE.
1 Ignition Key -Starts and stops engine.
2 Engine Throttle - Controls engine speed.
3 Two Steering/Speed Control Levers - In front of
seat at side.
4 PTO Switch - Engages electric clutch which
engages mower blades.
5 Parking Brake Lever - Engages parking brake.
(See page 22)
6 Cutting Height Adjust Pin - Sets cutting height to
desired position. (See page 12)
7 Choke - Aids in starting engine.
8 Light Switch (Optional)
9 Hour Meter / Tachometer
0
1
Warning Light for oil pressure.
33
99
11
44
EC ZERO TURN SPECIFICATIONS
Tread Width - ( Outside Tires) . . . . . . . . . . . . . . . . . . . 49”
Height - To top of seat back (Standard Seat) . . . . . . . 47”
(Suspension Seat) . . . . . 51”
Fuel Capacity (In Twin Tanks) . . . . . . . . . . . . . . 8 gallons
Hydrostatic Transaxles - All Models . . . . (2) Hydro- Gear
ZT3400
Engines - 26 hp Kawasaki FX Twin
25 hp Kohler Courage Pro SV830
27 hp Kohler Courage Pro SV840
Tires - All Models - Front . . . . . . . . . . . . . . . . 13 x 5.0 - 6
Drive . . . . . . . . . . . . . . 22 x 10.5 - 12
23 x 10.5 -12 Bar Tire - Optional
88
77
22
DECK SPECIFICATIONS
ITEM
Cutting width 55” 61”
Cutting Height ------ 1-1/2” to 4-1/2” in 1/4” increments
Blades 19” 21”
Overall width
with chute down 69” 75”
Material thickness - Deck -------------10 GA.-----------------
Spindle bearings ----------------------25 mm-------------------
10
Page 13
GENERAL SAFETY
SECTION II
OPERATION
7. Check battery fluid level.
Only qualified people familiar with this operator’s manual should operate this machine. Operator should
wear hard hat, safety glasses, and safety shoes.
Avoid loose fitting clothing or jewelry. The operator
should read, understand and practice all safety messages shown on the caution, warning and danger decals affixed to the machine to avoid serious injury or
death. Before beginning operation, clear work area of
any objects that may be picked up and thrown by
mower. Check for ditches, stumps, holes or other obstacles that could upset power unit or damage mower.
Tall grass can hide obstacles. Always push steering
levers apart, set parking brake, disengage PTO, turn
off engine, and allow blades to come to a complete
stop before leaving operator’s seat. Do not operate
without all shields in place and in good condition.
PRE-OPERATION CHECKLIST
1. Make sure fuel tank is full. Use regular unleaded
gasoline. See engine manual for more details.
WARNING
AVOID SERIOUS INJURY OR DEATH:
GASOLINE IS EXTREMELY FLAMMABLE AND EXPLOSIVE UNDER CERTAIN CONDITIONS.
ll
REFUEL IN A WELL VENTILATED AREA WITH
ENGINE STOPPED.
ll
DO NOT SMOKE OR ALLOW FLAMES OR
SPARKS IN THE REFUELING AREA OR
WHERE GASOLINE IS BEING STORED.
ll
DO NOT OVERFILL FUEL TANK. AFTER
REFUELING, MAKE CERTAIN THE TANK CAP
IS CLOSED PROPERLY AND SECURELY.
ll
BE CAREFUL NOT TO SPILL FUEL WHEN
REFUELING. FUEL VAPOR OR SPILLED FUEL
MAY IGNITE. IF ANY FUEL IS SPILLED, MAKE
SURE THE AREA IS DRY BEFORE STARTING
THE ENGINE.
ll
KEEP OUT OF REACH OF CHILDREN
2. Make sure dirt and foreign matter are kept out of
fuel tank. Use a clean funnel and fuel can.
3. Do not mix oil with gasoline.
8. Inspect V-belts
9. Check tire pressure (Use low pressure gauge):
Front & Drive Tires -15 psi. (Rear tires may
be inflated to 12 psi if additional ride comfort
is desired.)
10. Make sure underside of mower deck is free of
grass.
11. Make sure mower blades are sharp and secured
tightly.
12. Clean the air intake screen on the engine if
necessary.
13. Perform any other maintenance as it becomes
necessary. (See “Maintenance” section)
14. Check parking brake operation by disengaging
hydrostatic transaxles (freewheeling position),
and placing the brake lever in the “on” position.
Attempt to rock tractor by hand. Both drive wheels
should be locked. When the brake handle is in the
“off” position, both drive wheels should turn freely.
If there is a problem in either position, refer to
adjustment procedure in the maintenance sec
tion.
15. Seat Adjustments: The high-back full suspension
seat has a variable rate suspension system,
adjustable lumbar support and sliding seat to
accomodate different operators.
Operator Weight Adjustment Knob - Turn the
knob until the indicator position closely matches
your weight to give the most comfortable ride.
Adjustable Lumbar Knob (Under left arm rest) Turn knob clockwise or counter-clockwise to
achieve desired support.
Back Angle Adjustment Knob (Under right arm
rest) -Turn knob clockwise or counter-clockwise to
achieve desired support.
4. Do not use white, high test or premium gasoline.
Do not use de-icers, carburetor cleaners or other
such additives.
5. Check the crankcase oil level. Make sure the
engine is off. The mower should be parked on a
level area. Do not overfill. (See your engine
manual for more detailed instructions.)
6. Check the hydrostatic transaxle oil level. (See
“Maintenance” section of this manual.)
11
Lever Release Seat Slides - Pull the lever outward
to release the latch. Slide the seat forward or rearward to your most comfortable position and release
the lever.
WARNING
ENGINE EXHAUST GASES CONTAIN
ll
ll
POISONOUS CARBON MONOXIDE.
NEVER RUN ENGINE IN A CLOSED BUILDING OR
CONFINED AREA.
AVOID INHALING EXHAUST GASES.
Page 14
OPERATION
1. OPEN FUEL TANK SELECTOR VALVE left or
right tank.
2. MOVE CONTROL LEVERS TO neutral “OUT”
position by pushing each one straight sideways.
3. SET PARKING BRAKE. Pull rearward to set.
4. DISENGAGE MOWER BLADE CLUTCH by
moving clutch switch to “OFF” (down) position.
WARNING
AVOID SERIOUS INJURY OR DEATH:
DO NOT MOVE STEERING LEVERS FROM FOR
WARD TO REVERSE OR REVERSE TO FOR
WARD POSITION RAPIDLY. A SUDDEN CHANGE
IN DIRECTION MAY CAUSE LOSS OF CONTROL
AND/OR DAMAGE TO EQUIPMENT. FOR
SMOOTH, SAFE OPERATION, MOVE THE CON
TROL LEVERS IN A GENTLE, SLOW MOTION,
ESPECIALLY ON GRADES.
5. SET ENGINE CHOKE CONTROL for cold starts
to full position.
6. SET ENGINE THROTTLE TO 1/2 throttle.
7. TURN IGNITION KEY to “START” position and
release to “RUN” as soon as engine starts.
NOTE: Prolonged cranking will damage starter
motor and shorten the battery life.
8. ADJUST ENGINE THROTTLE AND CHOKE for
desired engine smoothness and speed. NOTE:
When mowing, always run engine at full throttle.
9. RELEASE PARKING BRAKE. Push brake lever
forward to release.
CAUTON
If the operator is inexperienced with the zero turn
mower lever steering/speed control, he/she
should follow these recommendations: Disengage
the mower blades. Go very slowly until thoroughly
familiar with the machine. Keep away from fences,
buildings, and other obstructions. While becom
ing familiar with the machine, move the Control
Levers smoothly and slowly. Practice until opera
tion is smooth and efficient.
11. BRAKING: To brake mower, gently move
Control Levers in the direction opposite to travel.
If the parking brake is engaged with the Control
Levers in the “IN” position the engine will stop.
12. CUTTING HEIGHT ADJUSTMENT:
1. Stop engine and move the control levers to
the neutral position and engage the parking brake.
2. Disengage the blades.
3. Depress the deck lift foot pedal raising the
deck to the transport position and place the pedal in
the locked position.
4. Insert height adjustment pin into the hole cor-
responding to the desired cutting height. See
decal on the top of the deck lift plate.
5. Depress the deck lift pedal and lower the deck to
the selected mowing height.
6. To transport, depress the lift foot pedal and lock in
position, then move the height adjustment pin to the 41/2” position.
7. The cutting height adjustment is only a recom
mended guide. During normal mowing cut only 1/3 of the
grass blade. Set cutting height to achieve your desired results.
10. TO DRIVE: Adjust seat forward or backward for
operator comfort. Move the Control Levers to the
“IN” position. Move Control Levers forward to
move forward. Move levers slowly forward to
increase speed. To reverse direction, move the
Control Lever on the side to which you want to
turn slightly rearward of the other Control Lever.
To turn on a zero radius axis, go slowly and pull
one Control Lever back and push the other
Control Lever forward, depending on which
direction you wish to turn.
CUTTING HEIGHT ADJUSTMENT DECAL
12
Page 15
ANTI-SCALP ROLLER OR CASTER ADJUSTMENT:
1. Stop engine and move the control levers to the
neutral position and engage the parking brake.
2. Disengage the blades.
3. The Anti-Scalp deck rollers are adjustable up and
down to provide improved deck flotation and scalping protection at various cutting heights. They are not intended
to ride continously on the ground. Rollers should maintain
.375” minimum clearance to ground. DO NOT adjust rollers
to support deck. (Refer to photographs)
14. ENGAGE MOWER BLADES by pulling
up on the PTO clutch switch. The engine will not
start if the PTO switch is engaged. If the engine
is running while the PTO clutch is engaged and
the operator leaves the seat, the engine will stop.
15. TO STOP:
A. Slow engine speed with throttle to slowest
position
B. Disengage the mower blade clutch by mov-
ing the PTO clutch switch to the “OFF” position.
C. Move Control Levers to neutral position and
then to the “OUT” position.
D. Set the parking brake.
WARNING
Use EXTREME caution when mowing and/or
turning on slopes as loss of traction and/or
tip-over could occur. Drive slower on slopes.
DO NOT mow slopes greater than 15 degrees.
Watch for ditches, holes, rocks, dips and
rises, which change the operating angle.
Keep away from drop-offs and steep banks.
Avoid sudden starts when mowing uphill mower may tip backwards. Loss of traction
may occur going downhill - weight transfer to
the front wheels may cause drive wheels to
slip and cause loss of braking. DO NOT mow
slopes when grass is wet - slippery conditions affect steering and reduce traction and
braking. The operator is responsible for safe
OPERATION ON SLOPES.
E. Turn ignition key to “OFF” position.
F. Remove the key and wait for all movement
and sound to cease before dismounting.
ANTI-SCALP ROLLER
CASTER ASSEMBLY (Optional on 61” Decks Only)
Roller Height Adjustment Holes
Spacers may be positioned above and/or below the
caster arm to adjust position.
13
Page 16
WARNING
AVOID SERIOUS INJURIES TO OTHERS:
ALWAYS REMOVE THE KEY FROM THE IGNITION SWITCH WHENEVER THE MOWER IS UNATTENDED TO PREVENT CHILDREN OR
UNAUTHORIZED PERSONS FROM STARTING
THE ENGINE.
15. HYDRAULIC COMPONENTS BYPASS-TO
MOVE THE TRACTOR WITHOUT POWER: The
bypass levers are located on the rear of the
engine plate. NOTE: Exhaust muffler can be
extremely hot. Use extreme caution when
engaging or disengaging bypass levers to
prevent severe burns. Pull both the RH & LH
levers to the rear and lock out in the keyway
slot to disengage for freewheeling. Reverse
this procedure for operation.
NOTE: To move the tractor without power, the pumps
must be unlocked and in the free wheel position. Failure to do so could possibly damage the hydraulic components. Never pull at more than 2 MPH.
16. FUEL SHUT-OFF VALVE: Located on the front
panel below the operator is the fuel directional
valve. This valve has three positions for operations and each position is made in 1/4 turn increments. This directional valve has a shut off position and can be used when the machine will not
be used for a few days or when the unit is transported to and from a work site.
Fuel Flow Valve Position
Off Down
Right Tank Right
Left Tank Left
Fuel Shut-Off Handle
Oil Drain RH side (Kawasaki) Bypass Lever
(RH Shown)
Oil Drain LH side (Kohler)
Bypass Lever (LH Shown)
MOWING RECOMMENDATIONS
1. Keep mower blades sharp.
2. Make sure deck and discharge chute are clean.
WARNING
TO AVOID SERIOUS INJURY FROM BLADE
CONTACT, POWER MUST BE OFF TO
CLEAN DISCHARGE CHUTE
DANGER
KEEP HANDS AND FEET AWAY FROM UNDERNEATH MOWER TO AVOID SERIOUS INJURY
OR DEATH.
WARNING
ROTARY MOWERS CAN DISCHARGE OBJECTS
AT HIGH SPEEDS. TO AVOID SERIOUS INJURIES
OR DEATH:
ll
OPERATE ONLY WITH SIDE BANDS IN
GOOD REPAIR AND CHUTE OR GRASS
CATCHER ATTACHMENT INSTALLED.
ll
KEEP CHILDREN, PETS, AND
BYSTANDERS AWAY FROM THE WORK
AREA.
ll
DO NOT OPERATE MOWER IN THE VICINITY OF OTHER PERSONS.
ll
DISCHARGE AWAY FROM BUILDINGS,
WALLS OR OTHER STRUCTURES.
14
Page 17
SECTION III
MAINTENANCE
CAUTION
BEFORE PERFORMING ANY MAINTENANCE, TURN OFF ENGINE, REMOVE KEY AND DISCONNECT SPARK
PLUGS. USE EXTREME CARE WHEN WORKING ON MACHINERY. DO NOT WEAR WATCH OR JEWELRY. DO
NOT WEAR LOOSE FITTING CLOTHES, AND OBSERVE ALL COMMON SAFETY PRACTICES WITH TOOLS.
BEFORE PERFORMING ANY SERVICE, MAINTENANCE OR REPAIR ON THE ENGINE, REFER TO THE RESPECTIVE ENGINE MANUFACTURERS’ MANUAL FOR SPECIFIC INFORMATION CONCERNING YOUR PARTICULAR BRAND OF ENGINE.
MAINTENANCE SCHEDULE
SERVICE WHEN
Check crankcase oil level before each use
Check air intake screen after each use
Clean grass from under deck after each use
Check tire pressure every 10 hours
Sharpen mower blades every 10 hours
Clean air filter element every 8 hours
IMPORTANT:
Check 20W50 motor oil
in hydrostatic system every 10 hours
Check drive belts every 50 hours
(20 hr break-in)
Grease blade spindles every 50 hours
Grease front wheels every 50 hours
Change engine every 50 hours
crankcase oil and filter (5 hrs break-in)
Change hydrostatic oil filter (See your Bush Hog Dealer)
Important: Substitution of an improper filter will cause every 500 hours
hydrostatic failure which will not be covered under warranty (50 hrs break-in)
Replace air
filter element annually or 500 hours
Check spark plugs annually or 100 hours
Service battery annually or 500 hours
Perform these maintenance procedures more frequently under extremely dusty, dirty conditions.
Replace decals when illegible. Write parts dept. for free replacement.
WARNING: Your mower is equipped with a ROPS, make sure seat frame retention click-pins are in place
after lifting seat pan for service.
15
Page 18
1. ENGINE:
For complete maintenance and operating information for your engine, please refer to your
engine operating and maintenance instructions
furnished by the engine manufacturer and
included in your Zero Turn mower information packet.
NOTE
Air intake screen must be kept clean. If
plugged, engine may be seriously damaged by over heating.
2. TACHOMETER / HOURMETER
The tachometer / hourmeter includes a
Flash Alert feature to remind you to change
engine oil and filter at recommended intervals. The tachometer displays engine rpm
when the engine is running and elapsed time
in hours when the engine is turned off.
Oil Change Flash Alert Break In:
Service Alert will be CHG OIL: Period is 5 HRS
with 1 hour gentle reminder. Alert fr equency
every 10 seconds, occurs when en gine is running or off. Service Alert will automaticly reset
after CHG OIL...now has flashed for 1 hour of engine run time (resets to normal interval).
4. TIRES:
Correct tire pressure is essential for efficient
operation of the mower. Check tire air pres-
sure periodically. Inflate front and rear tires to 15 psi.
(Rear tires may be inflated to 12 psi if additional ride
comfort is desired)
Lug bolts should be checked regularly for
tightness. Torque lug bolts to 59 ft./lbs.
5. MOWER BLADES:
Check sharpness of mower blades after every 10
hours of operation. To sharpen blades proceed as
follows:
WARNING
WHEN IT IS NECESSARY TO RAISE THE DECK
OR MOWER FOR SERVICE OR MAINTENANCE,
TO AVOID SERIOUS INJURY OR DEATH, STOP
ENGINE, SET PARKING BRAKE, REMOVE IGNITION KEY AND SPARK PLUG WIRES AND SECURELY SUPPORT THE DECK OR MOWER
BEFORE WORKING UNDERNEATH.
A. Lift deck and secure in raised position.
B. Remove bolt, cup washer, and blade from shaft.
New Blade
Normal:
Service Alert will be CHG OIL: Perid with 1 hour
gentle reminder, Alert frequency is every 10 seconds, occurs when engine is running or off.
Service Alert will automatically reset after CHG
OIL... now has flashed for 1 hour of engine run
time.
3. BATTERY:
When taking the battery out of the mower for
servicing, make sure to reconnect the cables to
the battery exactly as they were prior to removal.
Keep the battery clean. Remove the corrosion
around the battery terminals by applying a solution of one part baking soda to four parts water.
Coat all exposed terminal surfaces with a light
layer of grease or petroleum jelly to prevent corosion.
NOTE
At temperatures below 32 degrees F (0 deg
C) the full charge state must be maintained to
prevent cell electrolyte from freezing and
causing permanent battery damage.
WARNING
ll
ll
ll
AVOID SERIOUS INJURY OR DEATH:
THE BATTERY CONTAINS SULFURIC ACID.
AVOID CONTACT WITH SKIN, EYES OR CLOTHING.
EYES - FLUSH WITH WATER AND GET PROMPT MEDICAL ATTENTION.
ANTIDOTE: INTERNAL - DRINK LARGE QUANTITIES
OF WATER OR MILK. FOLLOW WITH MILK OF MAGNESIA, BEATEN EGG OR VEGETABLE OIL. CALL A
PHYSICIAN IMMEDIATELY.
BATTERIES PRODUCE EXPLOSIVE GASES.
KEEP SPARKS, FLAMES AND SMOKING MATERIALS AWAY. VENTILATE WHEN CHARGING IN AN
ENCLOSED SPACE. WEAR EYE PROTECTION
WHEN WORKING NEAR BATTERIES.
KEEP OUT OF REACH OF CHILDREN.
25 Degrees
When Notch Starts
Discard Blade
Dangerous!
C. Blades should be discarded when worn excessively. See sketch.
D. Sharpen blade with a hand file, electric grinder
or blade sharpener. Wear gloves and eye protec
tion when sharpening. Grind blade at original bevel.
E. Check balance of blade by positioning the blade
on a nail or blade balance pedestal. Grind the blade
on the end that is heavier until both sides balance.
F. Install blades with the concave side of the cup
washer against blade. Be sure blades are installed
with uplifts and cutting edges in the proper directions. Tighten retaining bolt to 76 ft./lbs.
WARNING
WHEN IT IS NECESSARY TO RAISE THE DECK
OR MOWER FOR SERVICE OR MAINTENANCE,
TO AVOID SERIOUS INJURY OR DEATH, STOP
ENGINE, SET PARKING BRAKE, REMOVE IGNITION KEY AND SPARK PLUG WIRES AND SECURELY SUPPORT THE DECK OR MOWER
BEFORE WORKING UNDERNEATH.
6. CLEANING GRASS BUILD UP UNDER DECK
Depress the deck lift foot pedal and lock in position, then
move the height adjustment pin to the 4-1/2”
position.
Lift the front of the unit and support unit securely.
Clean out any grass build up from underside of deck and
in deck discharge chute.
16
Page 19
MOTION CONTROL LEVER ADJUSTMENT
1. There are three lever height positions available.
Place the levers in the position that provides the
most confortable operating position for you.
2. Align the levers front/rear position. With the
levers in the neutral position, loosen the hardware and adjust the levers by tilting forward or
backward until properly aligned. tighten hardware.
6. Re-tighten the nuts at the end of the hex
turnbuckles and repeat the procedure for
the opposite side of the unit.
7. Shut the unit off. Remove the jumper wire from
the wiring harness and replace the connectors
into the seat switch. Never operate the mower
unless all safety switches are operating properly.
DRIVE ADJUSTMENTS
Steering and motion controls should be uniform in all
forward and reverse speeds. From the reverse position the levers should automatically return to neutral
when released.
CAUTION
STOP THE ENGINE BEFORE MAKING ADJUSTMENTS.
TEST DRIVE OPERATIONS
Check air pressure in tires. Equal tire pressure is critical for proper drive operation.
1. Raise drive wheels off ground. Safely block
the frame in this position.
Lever Position Adjustment Bolts
MOTION CONTROL STEERING ADJUSTMENT
1. Raise the drive wheels of the Zero Turn
off of the ground. Safely block the frame
in this position so it is secure. This
adjustment must be made with the drive
wheels turning.
2. Remove the electrical connection from
the seat switch and temporarily install a
jumper wire across the terminals of the
wiring harness.
3. Loosen the jamnuts on the hex turnbuckle,
which connects the lever control arm to
the pump control arm. Note: The nuts to
the front of the hex turnbuckle have lefthanded threads.
4. Start the engine. Run the engine at full
throttle and release brake.
2. Put control levers in neutral lock position
(control levers swung outward).
3. Start engine. Wheels should not rotate. If one or
both drive wheels are turning, perform procedures under “Motion Control Adjustment” for
side(s) that wheel turns.
Control Arm
Hex Turnbuckle
Jamnut
5. Position the control levers in the neutral
position. If the drive wheels creep
(rotate) in the neutral position then
lengthen or shorten the turnbuckle
assembly. Make the adjustment to stop
the wheel from rotating.
Control Arm Lever
Pump
Control Arm
17
Page 20
LEVELING THE DECK AND SETTING THE
COUNTERBALANCE SPRING TENSION
CAUTON
STOP THE ENGINE, SET PARKING BRAKE, REMOVE IGNITION KEY AND SPARK PLUG WIRES
FOR SAFETY.
55” Deck-Spring length of 16”. 61” DeckSpring length of 15-1/2” for 3” cutting height. For
lower cutting heights loosen springs at 1/4” intervals until stop hits adjusting pin in correct
height location. If deck floats, loosen springs at
1/4” intervals until deck stops floating. (Measure
from back of flatwasher to back of flatwasher)
1. Set all tire pressures to the correct specifications.
2. Rest machine on a level slab of concrete.
3. Depress the deck lift pedal to raise the deck to the
full lift height position and move the height adjust
pin to the 4.5” position.
4. Take all the force off the two deck lift springs by
loosening the nut at the front of each spring.
5. Place a level on the deck, from front to rear. If the
level is too short to reach all the way from front to
rear, lay a straight edge on the deck first, then
place the level on the straight edge.
6. Lay a .12” spacer beneath the front level. this will
automatically set the rear of the deck higher than
the front.
7. Adjust the bolts in the slot to raise the rear of the
deck (Shown below) until the level’s bubble is centered. Repeat for the other side.
8. Check to verify the deck is leveled side-to-side. To
do this, lay a 2” x 4” x 30” piece of wood under
each side of the deck and lower the deck to rest
freely on the top of these boards. Inspect the (4)
lift chains to see if tension is on each of them. If
any of the chains appear slack, adjust the bolt in
the slot to remove the slack from the chain.
9. Raise the deck up to the transport position and
lock in place.
10. Remove the 2” x 4”s from under the deck.
11. Tighten each of the counterbalance spring nuts
until springs are to the following lengths:
DECK BELT ADJUSTMENT
Belt adjustment should be checked every 50 hours to
get maximum life and cutting performance from the
mower. Belt tension is adjusted by increasing or decreasing the length of the spring on the movable idler.
For proper belt tension on the 55” and 61” mowers,
the spring length should be set to 7” inside hook to inside hook with the deck in 3” cutting height position.
To adjust the spring length, loosen or tighten the 3/8”
hex nuts on the eye bolt until the correct spring length
is reached.
DECK BELT REPLACEMENT
SE ONLY GENUINE Bush Hog REPLACEMENT PARTS
U
A. Remove the deck shield assembly.
B. Relieve the spring tension by loosening the two
3/8” hex nuts on the eye bolt.
C. Remove old belt.
D. Install new belt. Be sure that the belt is properly
positioned in all sheave grooves.
E. Adjust tension on the belt by adjusting the length
of the spring on the moveable idler. The correct
spring length is 7” for the 55” and 61” decks.
F. Replace the deck shield assembly.
DECK SPINDLE BELT ROUTING DIAGRAM
Front Of Deck
.12” Spacer At Front End
Height
Adjustment Pin
Deck
Lift Pedal
Deck Lift Spring Adjustment Nut
Bolt In Slot
Level on
Mower Deck
Upper
Chain Fastener
Deck
Shield
Deck
”
7
(Measure from inside of
Spring Loaded
Idler Assembly
Engine/Clutch Pulley
WARNING
TO AVOID SERIOUS BURN INJURIES:
ll
ALLOW ENGINE, OIL AND HYDRAULIC FLUIDS TO COOL BEFORE SERVICING TRANSMISSION OR ENGINE SYSTEM
CAUTION
TO AVOID CLEANING SOLVENT FIRES:
ll
AVOID USING FLAMMABLE SOLVENTS.
ll
AVOID AREAS WITH IGNITION SOURCES
18
WHEN USING FLAMMABLE SOLVENTS.
hook to inside of hook)
Page 21
WARNING
HIGH PRESSURE HYDRAULIC FLUID LEAKS
CAN PENETRATE SKIN CAUSING SERIOUS INJURY AND GANGRENE.
INJECTED FLUID MUST BE SURGICALLY REMOVED WITHIN A FEW HOURS BY A DOCTOR
FAMILIAR WITH THIS TYPE OF INJURY.
TO AVOID SERIOUS INJURY FROM
PRESSURE LEAKS:
l USE CARDBOARD AND NOT HANDS TO
SEARCH FOR LEAKS.
l RELIEVE HYDRAULIC PRESSURE BEFORE
WORKING ON SYSTEM.
l CHECK HYDRAULIC HOSES, LINES, AND
CONNECTIONS FOR TIGHTNESS AND
GOOD CONDITION BEFORE APPLYING
SYSTEM PRESSURE.
Place the steering levers in the neutral position and
open the bypass valve. Slowly move the steering
levers in both the forward and reverse directions to
purge the air from the closed circuit.
Close the bypass valve and run the unit in both directions for several minutes until any remaining air is
purged from the unit. Refill the reservoir as necessary.
Stop the engine, check for and correct any fluid leaks,
and check the reservoir level. Add fluid if necessary.
The transmission is now ready for operation.
HYDROSTATIC MAINTENANCE
Check the reservoir daily for proper fluid level. Oil level
should be to the cold fill line on the reservoir baffle.
START-UP MAINTENANCE
HYDROSTATIC FLUID
Bush Hog recommends the use of 20W50 motor oil in
the hydrostatic reservoir.
START-UP PROCEDURE
WARNING
TO AVOID INJURY FROM EQUIPMENT GROUND
TRAVEL AND MOVEMENT DURING
START-UP PROCEDURE:
DO NOT START OR JOG ENGINE UNTIL:
l PUMP IS IN NEUTRAL POSITION
l DRIVE WHEELS ARE RAISED OFF THE
GROUND.
l EQUIPMENT IS SECURELY BLOCKED-UP TO
KEEP WHEELS FROM GROUND CONTACT.
l PTO AND OTHER WORK FUNCTIONS ARE
DISCONNECTED.
l KEEP HANDS, HAIR AND CLOTHING AWAY
FROM ROTATING BLADES.
The following start-up procedure should always be followed when starting a new installation or when restarting an installation in which the transaxle has been
removed from the system or when oil has been
changed in the transaxle.
The hydrostatic transaxle units normally do not require
regular fluid changes. The system filter should be
changed after the first 50 hours of break-in, then every
500 hours thereafter. The fluid and filter should be
changed and the system cleaned if the fluid becomes
contaminated with foreign matter (water, dirt, etc.)
.Refer to illustration on page 20.
PARKING BRAKE ADJUSTMENT
(Refer to next page for illustration and instructions for Parking
Brake Cable Replacement / Installation)
Check to make sure brake is adjusted properly.
Force on the brake handle to lock the brake in place
should be 15 pounds. To adjust the brake tension,
shorten or lengthen the brake cable linkage.
If further adjustment is needed at each individual wheel
brake:
1. Engage the brake lever (lever up).
2. Remove the wheel from the side needing adjusting.
Loosen brake adjusting nuts, remove excess slack from
cable and retighten nuts.
3. Reinstall the wheel and torque the lug nuts.
Prior to starting the transaxle, make certain all system
components (reservoir, fittings, etc.) are clean prior to
filling with fluid.
Fill the reservoir with recommended fluid which should
be filtered prior to entering the reservoir.
Start the engine and idle at the lowest possible RPM.
With the bypass valve closed, slowly move the displacement control in both the forward and reverse directions. As air is purged from the unit, the oil level in
the reservoir will drop and bubbles may appear in the
fluid. Refill the reservoir as necessary.
Pump Drive Belt Tension Adjustment
1. Stop engine and remove key.
2. The pump drive belt tension is adjusted through a
spring loaded idler pulley.
3. Adjust the eye bolt so the spring length is 7” (measured to the inside of the spring loops).
19
Page 22
PARKING BRAKE CABLE REPLACEMENT / INSTALLATION
OUTSIDE BRAKE ARMS
1. The outside brake arms are to remain in the position as received from the factory. (Horizontal and
rearward)
2. Install brake cables finger tight and position the brake handle in the “vertical” position.
3. Open left and right relief valves on the pumps by pulling the RH and LH levers to the rear and lock
out in the keyway slot to disengage for free wheeling. (See photo on page 14)
4. Install the brake cable spring onto the brake arm. (Note: the spring should be positioned to the outside of the brake arm.)
RH Brake Cable
RH Outside Brake Arm
Brake Handle
(Shown in Horizontal Position)
Tension Rod
LH Brake Cable
Brake Cable
Adjusting Nuts
Hydrostatic Oil Filter
LH Outside Brake Arm
Brake Cable
Adjusting Nuts
20
Page 23
TROUBLESHOOTING CHECK LIST
1. ENGINE IDLES POORLY:
Carburetor maladjustment readjust carburetor
Improper spark plug gap check and re-gap plug
2. ENGINE BACKFIRES:
Carburetor maladjustment readjust carburetor
3. ENGINE RUNS BUT POWER UNIT WON’T MOVE FORWARD
Drive belt loose or broken re-tension or replace
Pump shift arm disconnected reconnect
Hydrostatic reservoir oil low add oil
Pump bypass valve open put in closed position
Hydrostatic oil filter plugged replace filter
Bad transaxle consult dealer
4. POWER UNIT LOSES POWER OR HYDROSTAT SYSTEM OVERHEATS
Hydrostatic oil reservoir too low add oil
Transaxle damaged consult dealer
Hydrostatic oil reservoir blowing oil out cap overfilled or water contaminated
5. ENGINE STALLS WHEN BLADES ARE ENGAGED
Operator not on seat sit on seat
Faulty interlock system consult dealer
Bad blade spindle bearing consult dealer
Deck drive belt not properly routed reroute
Blades blocked by foreign material clean under deck
•See engine manual for engine adjustments
ENGINE ELECTRICAL TROUBLE
1. ENGINE WILL NOT TURN OVER:
Dead battery
Bad ground connection
Bad terminal connection at battery
Wiring harness plugs are not attached properly at
the key switch or the PTO switch
Bad parking brake switch
Bad PTO switch
2. ENGINE WILL TURN OVER,
BUT WILL NOT START:
A. If there is spark at the plug:
No fuel
Bad fuel solenoid in engine
B. If there is no spark at the plug:
Make sure safety interlock system is sequenced:
PTO switch is off
Control levers in neutral position
Parking brake is on
Operator in seat
Check safety interlock switches:
Seat switch
Neutral switch
Bad ignition module on engine
POOR CUTTING PERFORMANCE
* ENGINE SPEED IS TOO SLOW:
Always mow at full throttle.
* BELT SLIPPAGE:
Tighten deck adjusting spring on the 55” or 61”
deck to 7”.
* DECK IS PLUGGED WITH GRASS:
Clean underneath the mower.
* BLADES ARE NOT SHARP:
Sharpen the blades or replace.
* CUTTING HEIGHT:
Normal mowing - cut only 1/3 of the grass blade.
* FINISHED CUT IS UNEVEN:
Groundspeed is too fast.
* BLADES ARE WORN DOWN TOO FAR:
Replace your blades.
21
Page 24
SECTION IV
ASSEMBLY
MOUNTING THE REAR TIRES
Position the rear tire rims over the axle hubs and fasten with the 1/2” lug nuts. Torque to 59 ft. lbs.
Control Lever
MOUNTING THE CONTROL LEVERS
Mount the control levers to the 3/4” x 3/4” square bars
positioning the control levers to the preferred height
and mount with 3/8” x 1” fasteners, lock washers, and
flat washers. Move the control levers forward or rearward for operator comfort.
ROPS
Insert the ROPS frame into the channels in the ZT
frame so the upper folding portion angles forward
above the operators seat. Attach with the 1/2” x 3-1/4”
fasteners and locknuts.
MOUNTING THE SEAT
Mount seat and mounting plate assembly to the mainframe using the fasteners installed in the seat mount
lugs on the mainframe. Attach the seat limit rod to the
left side of the seat mounting plate, use the cotter pin
and flatwasher supplied.
Seat and Mounting Plate Assembly
Seat
Limit
Rod
ROPS
Upper folding
portion angles
forward above
the operators
seat.
Park Brake Lever
Seat
Safety
Wires
Battery
Attach the seat safety wires to the seat switch.
BATTERY
Attach the positive lead to the battery.
Additional wire tie straps are shipped to secure the
wiring harness as needed.
ITEMS TO CHECK:
Check oil level in the engine (see engine manual)
Check the fluid level in the hydrostatic oil reservoir.
Check tightness of all fasteners, including bolts, lug
nuts, and setscrews.
Check tire pressure.
Seat Mount Lugs and Fasteners
22
Page 25
Models with Kohler Engines require Harness adapter 50068129
WIRING DIAGRAM FOR TORNADO SERIES ZERO TURN MOWERS
Note: Models with Kawasaki Engines require Harnes adapter 50068725
23
Page 26
50068725 HARNESS ADAPTER
KAWASAKI ENGINES
50068133 Oil Pressure Lead for Kawasaki Engines
To Main
Harness
50068129 HARNESS ADAPTER
KOHLER ENGINES
To Engine Harness
To Solenoid
To Main Harness
24
Page 27
To promote safe operation, Bush Hog supplies safety decals on all products manufactured. Because damage can
SAFETY DECALS
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.
83056
50043277
25
94132
50012615
D859
Page 28
50043279
SERIOUS INJURY
OR DEATH MAY
RESULT FROM
MACHINE ROLLOVER
•
Failure to follow these
instructions could result
in serious injury or death.
• Do not operate machine on
steep slopes or near drop offs.
• Avoid sharp and/or quick turns.
• Do not exceed the machine
weight rating of the rops.
• Always use seat belt.
• Do not jump if machine tips.
• If ROPS is foldable
°
Always keep the ROPS fully extended.
°
WHEN ROPS MUST BE DOWN-
°
Do not use seat belt.
°
Drive with extra care.
•
If equipped with seat platform,
Do not operate machine without
seat platform pins in place.
50048632
50029501
50048632
50043280
94134
26
Page 29
Wrench
Size “A”
AMERICAN
Bolt Head Markings
SAE Grade 2
(No Dashes)
SAE Grade 5
(3 Dashes)
SAE Grade 8
(6 Dashes)
TORQUE SPECIFICATIONS
Proper toque for American fasteners used on Bush Hog equipment.
Recommended Torque in Foot Pounds (Newton Meters).*
BOLT DIAMETER
Bolt
Diameter “B”
WRENCH (IN.) “B” AND SAE SAE SAE
SIZE (IN.) “A” THREAD SIZE GRADE 2 GRADE 5 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)
1 7/8 1 1/4 12 UNF 553 (749) 1241 (1682) 2013 (2728)
2 1/16 1 3/8 6 UNC 655 (887) 1470 (1992) 2382 (3228)
2 1/16 1 3/8 12 UNF 746 (1011) 1672 (2266) 2712 (3675)
2 1/4 1 1/2 6 UNC 870 (1179) 1950 (2642) 3161 (4283)
2 1/4 1 1/2 12 UNF 979 (1327) 2194 (2973) 3557 (4820)
METRIC
Bolt
Diameter “B”
Wrench
Size “A”
*Use 75% of the specified torque value for plated fasteners. Use 85% of the specified torque values for lubricated fasteners.
8.8
Numbers appearing on bolt heads
indicate ASTM class.
Proper torque for metric fasteners used on Bush Hog equipment.
Recommended torque in foot pounds (Newton Meters).*
WRENCH BOLT
SIZE DIA. ASTM ASTM ASTM ASTM
(mm) “A” (mm) “B” 4.6 8.8 9.8 10.9
851.8 (2.4) 5.1 (6.9) 6.5 (8.8)
10 6 3 (4) 8.7 (12) 11.1 (15)
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 24 211 (286) 563 (763) 778 (1054)
41 27 821 (1112) 1138 (1542)
46 30 418 (566) 1119 (1516) 1547 (2096)
27
Page 30
EC SERIES
ZERO TURN RIDING MOWERS
Optional Equipment:
Canopy Kit
Light Kit
Rear Hitch Kit
Mulching Kit 55”
Mulching Kit 61”
Deck Caster Wheel Kit (61” Deck)
28
Page 31
SLOPE ANGLE GUIDE
ALIGN THIS EDGE WITH A VERTICAL SURFACE
(TREE. BUILDING, FENCE POST. POLE, ETC.)
THIS I
S A 5°
SLOPE
THIS I
S
A 10° SLOPE
T
H
I
S
I
S
A
1
5
°
SL
O
P
E
FOLD ALONG APPROPRIATE LINE
EXAMPLE: COMPARE
SLOPE WITH FOLDED
EDGE
29
Page 32
Page 33
TO THE OWNER/OPERATOR/DEALER
To keep your implement running efficiently and safely, read your manual thoroughly and follow these directions
and the Safety Messages in this Manual. The Table of Contents clearly identifies each section where you can
easily find the information you need.
The OCCUPATIONAL SAFETY AND HEALTH ACT (1928.51 Subpart C) makes these minimum safety
requirements of tractor operators:
REQUIRED OF THE OWNER:
1. Provide a Roll-Over-Protective Structure that meets the requirements of this Standard; and
2. Provide Seat belts that meet the requirements of this paragraph of this Standard and SAE J4C; and
3. Ensure that each employee uses such Seat belt while the tractor is moving; and
4. Ensure that each employee tightens the Seat belt sufficiently to confine the employee to the protected
area provided by the ROPS
REQUIRED OF THE OPERATOR:
1. Securely fasten seat belt if the tractor has a ROPS.
2. Where possible, avoid operating the tractor near ditches, embankments, and holes.
3. Reduce speed when turning, crossing slopes, and on rough, slick, or muddy surfaces.
4. Stay off slopes too steep for safe operation.
5. Watch where you are going - especially at row ends, on roads, and around trees.
6. Do not permit others to ride.
7. Operate the tractor smoothly - no jerky turns, starts, or stops.
8. Hitch only to the drawbar and hitch points recommended by the tractor manufacturer.
9. When the tractor is stopped, set brakes securely and use park lock, if available.
x Keep children away from danger all day, every day...
x Equip tractors with rollover protection (ROPS) and keep
all machinery guards in place...
x Please work, drive, play and live each day with care
and concern for your safety and that of your family and
fellow citizens.
Page 34
Loading...