Congratulations on your selection of Grasshopper equipment. We believe you have exercised
excellent judgment in the purchase of Grasshopper equipment. W e are most appreciative of your
patronage.
We recommend that you carefully read this entire manual before operating the unit. Time spent
becoming fully acquainted with its performance
features, adjustments and maintenance will
add a longer and more satisfactory life to your
Grasshopper.
The Grasshopper equipment you have purchased
has been carefully engineered and manufactured
to provide dependable and satisfactory use. Like
all mechanical products, it will require cleaning and upkeep. Lubricate it as specifi ed in the
manual. Observe all safety information in this
manual and all safety decals on the tractor and
attachments.
The illustrations and data used in this manual
were current at the time of printing, but due
to possible in-line production changes, your
machine may vary slightly in detail. The manufacturer reserves the right to make changes or
add improvements to its products at any time
without incurring any obligation to make such
changes to products manufactured previously.
ATTENTION:
• Read the instructions and warnings carefully before using this machine.
• Read your Grasshopper warranty enclosed with the tractor manual. T o validate
warranty, fi ll in the required information
and return the warranty form within 10
days of purchase to:
THE GRASSHOPPER CO.
P.O. Box 637
Moundridge, Kansas 67107
Use only genuine Grasshopper service parts.
Substitute parts will void the warranty and may
not meet standards required for safe and satisfactory operation. Record the model and serial
number of your mower.
MODEL:
SERIAL NUMBER:
(Serial tag is located on tractor frame bottom,
left of engine.)
Provide this information to your dealer to obtain
correct repair parts.
As with all lawn and grounds equipment, if handled carelessly this machine is a dangerous piece
of equipment. If used incorrectly this machine can cause severe injury. You, the operator, are
responsible when operating it. Therefore, safety
is of the utmost importance.
Drive Wheels - 4 ply rated 20 x 10 x 10
Front Wheels - 4 ply rated 13 x 6.5 x 6 rib
Dimensions of Tractor
Seat Back Height 1.14 m
Seat Cushion Height 0.71 m
Tractor Width 1.12 m
Tractor Length 1.91 m
Wheel Base 1.14 m
Weight - Uncrated 379 kg
Weight - Crated 463 kg
Hour Meter Standard
5
SAFETY SYMBOLS
This Safety Alert Symbol means A TTENTION!
BECOME ALERT! YOUR SAFETY IS INVOLVED! In this manual, the safety alert symbol
identifi es potential hazards and alerts the reader to
safety messages. These hazards may cause serious
injury or death if you do not follow the recommended precautions in the safety messages.
Throughout this manual the word IMPORTANT
provides special mechanical specifi cations or in-
formation and is used to indicate that failure to
observe can cause damage to equipment. The
word NOTE emphasizes general information
requiring special attention.
6
SAFETY DECALS
Replace Immediately If Damaged
Part No. 165365
Part No. 165367
165365
165367165366
15°
Part No. 165366
165365
Part No. 165365
165381
Part No. 165381
Part No. 165369
(under seat)
Part No. 165370
165369
(under seat)
165370
165435
Part No. 165435
165373
Part No. 165373
(under seat)
12066
165380
Part No. 165380
Part No. 165368
165368
Fig. 1
7
SAFETY DECALS
165366
15°
165367
1
2
165365
Part No. 165365
1. Cutting/dismemberment hazard of hand or foot, mower blade - Stay away from moving parts.
2. Thrown object hazard - Keep bystanders a safe distance from the machine.
21
3
4
Part No.165366
1. Warning - Read Operator's Manual.
2. Thrown object hazard - Keep bystanders a safe distance from the machine.
3. Tipping hazard - Do not operate machine on slopes greater than 15 degrees.
4. Tipping hazard - Wear seatbelt.
1
2
3
4
Part No.165367
1. W arning - Remove the ignition key and read the Operator's Manual before servicing or performing
maintenance.
2. Cutting/dismemberment hazard of toes or foot - Wait until moving parts have stopped completely.
3. Machine runover hazard with cutting/severing, blade - No riders.
4. Machine runover hazard with cutting/severing, blade - Keep bystanders a safe distance from machine.
8
SAFETY DECALS
165435
165381
165380
1
165368
Part No.165368
1. Dust/Fumes inhalation hazard - Read the
Operator's Manual.
1
1
Part No. 165380
1. Hot surface - Keep a safe distance.
1
23
165369
Part No. 165369
1. Hand/Arm Entanglement hazard, belt - Stay
away from moving parts.
1
165370
Part No. 165370
1. Hand/Arm Entanglement hazard, fan - Stay
away from moving parts.
1
165373
Part No.165373
1. Electrocution hazard - Do not modify the
electrical system.
Part No.165381
1. Fire hazard.
2. Read the Operator's Manual.
3. No smoking.
1
2
3
4
5
Part No.165435
1. Thrown object hazard - Keep bystanders a
safe distance from the machine.
2. Always operate mower with the Discharge
Shield in place.
or
3. Always operate mower with the Vacuum
Blower Assembly in place and the complete
grass catcher attachment installed.
or
4. Always operate mower with the Discharge
Opening Restriction Plate in place.
5. Do Not operate mower without the Discharge
Shield, the Vacuum Blower Assembly or
the Discharge Opening Restriction Plate in
place.
9
INSTRUCTIONAL DECALS
1
2
3
4
5
Part No.162320
1. Fuse I.D.
2. Regulator - 30 AMP
3. Start - 7.5 AMP
4. PTO - 10 AMP
5. Light / Auxiliary - 7.5 AMP
STEERING LEVERS
Forward
Neutral
Right
Tur n
Left
Tur n
Neutral
Reverse
162814
Part No.162814
1
2
3
4
5
6
7
OFF
165421
Part No.165421
1. Off
2. Parking Brake
3. On
ON
1
2
3
1. Steering Levers
2. Forward
3. Neutral
4. Right Turn
5. Left Turn
6. Neutral
7. Reverse
10
INSTRUCTIONAL DECALS
Hand/Arm, Steering
1.82 m/s
2
Whole Body, Foot
0.86 m/s
2
Whole Body, Seat
0.35 m/s
2
OFF
1
RUN
2
START
3
IGNITION
4
BRAKE
161121
FASTSLOW
1. Ignition Switch - Off
2. Ignition Switch - Run
3. Ignition Switch - Start
4. Parking Brake Indicator Light
5. Throttle - Fast
6. Throttle - Slow
PULL OUT TO ENGAGE
1.5
.875
PTO CLUTCH
CHOKE
5
THROTTLE
7
6
Part No.161121
9
HOURS
8
10
ON
11
OFF
LIGHTS
7. Choke
8. PTO Clutch - Pull Out to Engage
9. Hour Meter
10. Work Lights - On
11. Work Lights - Off
Sound Pressure Level
Note: The data contained in this section only
pertains to units marked with the CE logo (
).
This unit has an equivalent continuous Aweighted sound pressure level at the operator
ear of 92dBA, based on measurements of identical machines per EN 11201.
Sound Power Level
Note: The data contained in this section only
pertains to units marked with the CE logo ().
Model 124/52 has a guaranteed sound power
level of 105 dBA, based on measurements of
identical machines per EN 11094.
Vibration Acceleration Levels
Note: The data contained in this section only
pertains to units marked with the CE logo (
).
Vibration acceleration levels are based on measurements of identical machines per EN 1032 &
EN 1033.
All values are meters per second squared (m/s2)
and represent the Mean Value of X, Y, Z Aeq.
11
WORK SAFELY - FOLLOW THESE RULES
The designed and tested safety of this
machine depends on it being operated
within the limitations as explained
in this manual. Read manual before
operating.
TRAINING
• Safety instructions are important! READ THIS
MANUAL AND ALL SAFETY RULES.
• Know your controls and how to stop machine,
engine and mower deck quickly in an emergency .
• T o avoid accident or injury, do not allow anyone
to operate this machine without proper instruction. Any person who operates this machine
MUST be instructed in and capable of the safe
operation of the unit and all controls.
• Do not allow children or unqualifi ed individu-
als to operate machine.
must be replaced.
• Check brake action before you operate. Adjust
or service brakes as necessary.
• Ensure all safety decals are installed and in
good condition.
• Remove accumulated debris from machine to
avoid fi re hazard.
• Inspect area to be cut removing stones, branches
and other debris that might be thrown causing
injury or damage.
• Evaluate the terrain to determine what accessories and attachments are needed to properly
and safely perform the job.
• Low-hanging branches and similar obstacles
can injure the operator or interfere with mowing
operation. Before mowing, identify potential
obstacles such as low-hanging branches, and
trim or remove those obstacles.
• Never permit any person, other than the operator, to ride or board the mower at any time.
• Operate only in daylight or good artifi cial light.
PREPARATION
• Always wear relatively tight and belted
clothing to avoid entanglement in moving
parts. Wear sturdy, rough soled work shoes.
Never operate machine in bare feet, sandals or
sneakers.
• This machine produces sound levels in excess
of 85 dBA at the operator ear and can cause
hearing loss through extended periods of exposure. Wear hearing protection when operating
this machine.
• Walk around machine and visually inspect for
damaged, loose, or missing components. Do
not operate unless all components are properly
mounted, adjusted and in good working condition.
• Ensure all safety switches function properly.
See Operation section for details.
• Ensure all safety shielding is in good condition
and properly installed.
• Ensure either the discharge shield, restriction
plate, or complete vacuum attachment is installed.
• Ensure OPS is in good condition and installed
properly. Never modify OPS with holes,
notches or welding. If OPS is damaged, it
FUEL HANDLING SAFETY
• In certain conditions, gasoline, ethanol, diesel and other types of fuel are extremely
fl ammable and highly explosive. A fi re or
explosion from fuel can burn you and others
and can damage property.
• Fill the fuel tanks outdoors, in an open area,
when the engine is cold. Wipe up any fuel
that spills.
• Do not remove the fuel cap if the engine or
fuel tank is hot. Allow several minutes to
cool.
• Remove the fuel cap slowly to release any
pressure from the fuel tank.
• Do not fill the fuel tanks completely full.
Add fuel to the tank until the level is .25" to
.5" (6 mm to 13 mm) below the bottom of
the fi ller neck. This empty space in the tank
allows fuel to expand.
• Never smoke when handling fuel, and stay
away from an open flame or where fuel
fumes may be ignited by a spark.
• Store fuel in an approved container and keep
it out of the reach of children. Never buy
more than a 30-day supply of fuel.
• Always place fuel containers on the ground
12
away from your vehicle before fi lling.
• Do not fi ll fuel containers inside a vehicle
or on a truck or trailer bed because interior
carpets or plastic truck bed liners
may insulate the container and slow the loss
of any static charge.
• When practical, remove equipment from the
truck or trailer and refuel the equipment with
its wheels on the ground.
• If this is not possible, then refuel such equipment on a truck or trailer from a portable
container, rather than from a fuel dispenser
nozzle.
• Keep the dispenser nozzle in contact with
the rim of the fuel tank or portable container
opening at all times until fueling is complete.
• Never use cellular phones or other portable
electronic devices when handling fuel.
OPERATIONAL SAFETY
• Read “Operation” section of this manual before attempting to operate this unit.
• This machine is equipped with an Operator
Protective Structure (OPS) and a seat belt.
Do not operate this machine without the
OPS installed and in good condition.
• Always wear the seatbelt.
• Do not operate on slopes greater than 15
degrees (27%).
• To determine the angle of a slope, an angle
measuring device (inclinometer) is readily
available at your local hardware store.
• Fenders serve as shields. Do not operate
without them.
• DO NOT drive machine without mower
deck installed. The proper stability of the
machine depends on the weight of the mower deck.
• Keep bystanders away from equipment
while it is in operation.
• Keep children and pets a safe distance away.
Never direct discharge toward anyone.
• Start engine from operator’s seat after disengaging PTO and placing steering levers into
the swing-out (neutral lock) position.
• Keep hands and feet away from underneath
mower deck while engine is running. Stay
clear of all moving parts on machine.
• Wear suitable hearing protection when oper ating this machine.
• Do not operate in reverse unless absolutely
necessary and then only after careful observation of the entire area behind you.
• If operator must dismount to make adjustments the engine must not be running.
• Do not move steering levers from forward to
reverse or reverse to forward position rapidly.
The sudden direction change could cause loss
of control, especially on slopes.
• Reduce speed on slopes and sharp turns to minimize tipping and avoid loss of control.
• The operator is responsible for safe operation
on slopes, even slopes of 15 degrees (27%) or
less. Only the operator can determine the stability of the mower on a given slope based on
existing conditions like: machine speed and direction, slope variation, slipperiness, drop-offs,
holes, obstacles, etc.
• Stay alert for holes, rocks, roots and other hidden hazards in the terrain. Keep away from
drop-offs and soft embankments.
• Stop machine and mower deck immediately
upon striking an obstruction. Turn engine off,
inspect machine and mower deck. Repair any
damage before resuming operation.
• Disengage PTO, stop engine, set park brake,
remove key and wait for all movement to stop
before dismounting, making adjustments,
cleaning, or unclogging the machine.
• Never transport mower with blades running.
Disengage PTO before crossing streets, sidewalks, driveways, etc.
• Watch for traffi c when operating near or cross-
ing roadways.
• This machine is not equipped for highway use,
especially when safety lighting and marking is
required. It is not a recreational vehicle.
• This unit is not equipped with a drawbar. Do
not pull loads.
• Take all possible precautions when leaving
machine unattended: disengage PTO, lower
mower deck, place steering levers in neutral,
set parking brake, stop engine and remove key
from ignition.
• Never carry passengers.
13
• Never run engine indoors or in an enclosed
area, unless exhaust gases are safely removed
to the outdoors with an exhaust pipe extension/
hose combination. Exhaust gases contain carbon monoxide, an odorless and deadly poison.
MAINTENANCE SAFETY
• Always perform maintenance with the machine parked on a hard level surface; with
the engine stopped and the PTO disengaged;
with the park brake set; and with the key
removed from the ignition.
• Always remove the grounded (-) clamp from
the battery when performing maintenance
on the engine, clutch, or any other electrical system. The battery is located under the
seat.
• Always wear close fi tting clothing and safe-
ty equipment appropriate for the job. Keep
work area clean and dry.
• Never work under the machine without jack
stands or other equivalent safety blocks. Do
NOT rely solely on mechanical or hydraulic
jacks or lifts for support. Always use adequate wheel chocks on tires remaining on
the ground.
• Hydraulic hoses can fail due to physical
damage, kinks, age, and exposure. Check
hoses regularly. Replace damaged hoses.
• Escaping fl uid under pressure can penetrate
the skin causing serious injury. Avoid the
hazard by relieving pressure before disconnecting hydraulic or other lines. Tighten
all connections before applying pressure.
If an accident occurs, see a doctor immediately. Any fl uid injected into the skin must
be surgically removed within a few hours or
gangrene may result.
• Search for leaks with a piece of cardboard.
Protect hands and body from high pressure
fl uids.
• Never run engine indoors or in an enclosed
area, unless exhaust gases are safely removed to the outdoors with an exhaust pipe
extension/hose combination. Exhaust gases
contain carbon monoxide, an odorless and
deadly poison.
• Waste products such as used oil, fuel, cool-
ant, and batteries can harm the environment
and people. Dispose of waste products properly.
• Never attempt to disconnect or alter any part
of the safety interlock systems.
• Do not change engine governor settings.
• Keep engine free of grass, leaves, or excess
grease to reduce fi re hazard and minimize
engine overheating.
• Keep machine and mower deck in good operating condition and all safety devices in
place.
• Periodically tighten all bolts, nuts and
screws. Check that all locking pins are properly installed and in good condition.
• Check brake operation frequently. Adjust
and service as required.
STORING SAFELY
• Never store machine with fuel in the tank
inside a building where fumes may reach
an open fl ame, spark or pilot light as on a
furnace, water heater, clothes dryer, or other
gas appliance. Allow engine to cool before
storing in an enclosure.
• If engine is to be unused for 30 days or more,
add a fuel stabilizer to the fuel system. Fuel
stabilizer (such as STA
able additive in minimizing the formation of
fuel gum deposits during storage. Add stabilizer to fuel in fuel tank or storage container.
Always follow mix ratio found on stabilizer
container. Run engine at least 10 minutes
after adding stabilizer to allow it to reach the
carburetor or injectors.
• If draining fuel tank, drain fuel into an approved container outdoors and away from
open fl ame.
• Never run engine indoors or in an enclosed
area, unless exhaust gases are safely removed to the outdoors with an exhaust pipe
extension/hose combination. Exhaust gases
contain carbon monoxide, an odorless and
deadly poison.
• Remove all accumulated debris from mower
deck and tractor.
• Sand areas where paint is chipped and repaint to prevent rust. Lubricate all locations
to prevent moisture damage during storage.
14
.
BIL®) is an accept-
GENERAL INFORMATION
The purpose of this manual is to assist the operator
in maintaining and operating GRASSHOPPER
mowers. Read it carefully. It furnishes information and instructions that will help you achieve
years of dependable performance.
These operating and maintenance instructions
have been compiled from extensive fi eld experi-
ence and engineering data. Some information
may be general in nature due to unknown and
varying conditions. However, through practice
and these instructions you should be able to
develop operating procedures suitable to your
particular situation.
The illustrations and data used in this manual
were current at the time of printing, but due
to possible in-line production changes, your
machine may vary slightly in detail. GRASS-HOPPER reserves the right to redesign and
change the machine as necessary without notifi cation.
LEFT
RIGHT
Some illustrations in this manual show
the machinery with safety shields removed to provide a better view. The
machine should never be operated
with any safety shielding removed.
Fig. 2
Throughout this manual, references are made to
right and left directions. These are determined
by standing at the rear of the equipment and facing the direction of forward travel.
Mower blade rotation is clockwise as viewed
from the top of mower.
15
MEASUREMENT CONVERSION
DecimalFraction ft lb (Nm)ft lb (Nm)ft lb (Nm)
0.2501/46 (8)11 (15)14 (19)
0.3125/1613 (18)21 (28)25 (34)
0.3753/823 (31)38 (52)55 (75)
0.4377/1637 (50)55 (75)80 (108)
0.5001/257 (77)85 (115)120 (163)
0.5629/1682 (111)125 (170)180 (244)
0.6255/8111 (151)175 (237)230 (312)
0.7503/4200 (271)300 (407)440 (597)
0.8757/8280 (380)450 (610)720 (976)
1.0001350 (475)680 (922)1035 (1403)
Bolt Diameter in Inches
Recommended Bolt Torque
SAE Grade 2
SAE Grade 5
SAE Grade 8
Measurements expressed in this manual are
decimal values. Use the chart below if you are
unsure of a measurement to obtain the fractional
equivalent.
Conversion Table - Inches
Decimal
0.062
0.125
0.187
0.250
0.312
0.375
0.437
0.500
Fraction
1/16
1/8
3/16
1/4
5/16
3/8
7/16
1/2
BOLT SIZE AND TIGHTENING
RECOMMENDATIONS
DecimalFraction
0.562
0.625
0.687
0.750
0.812
0.875
0.937
1.000
9/16
5/8
11/16
3/4
13/16
7/8
15/16
1
The chart below lists the correct tightening
torque for bolts used on Grasshopper machinery. When bolts are to be tightened or replaced
refer to this chart to determine the grade of bolt
and proper torque (except when speci f c torque values are assigned in the manual text).
Bolt Head Markings
SAE Grade 2
(no dashes)
SAE Grade 5
(3 radial dashes)
16
SAE Grade 8
(6 radial dashes)
OPERATION
The safe operation of this machine is the responsibility of the operator. Any person who
operates the machine MUST be instructed in
and capable of the safe operation of the machine
and all controls. Read all safety information on
pages 6 through 14.
CONTROLS AND SWITCHES
(Refer to Fig. 3)
Know your controls and how to stop the machine, engine, and mower deck quickly in an
emergency. Do not operate this machine until
you are completely familiar with the controls
and comfortable with your ability. We recommend you practice in a flat open area at half
throttle until you are comfortable with all the
controls.
The two Steering Levers control speed, motion,
and direction of the machine and are located on
each side of the seat. The left lever controls fl ow
of hydraulic oil from the left pump to the left
drive wheel motor. The right lever controls fl ow
of hydraulic oil from the right pump to the right
drive wheel motor. This allows left and right
drive wheels to turn independently, which provides the “zero turn” ability . Each lever has two
positions: The swung “out” neutral lock position, where the lever will not activate the pump;
and the swung “in” operation position, where
the lever will activate the pump. For details of
steering lever operation, refer to the “Steering
Lever Operation” section, page 20-22.
The following controls are located on or beside
the Operator’s Console which is located to the
right side of the seat.
must be held against spring pressure in this
position).
• The Choke Control (C) is the small black
push/pull knob located on the console. The
choke is used to aid in starting a cold engine. Pull the choke knob "up" to activate
the choke on the engine. Push the choke
knob "down" for the choke to be off. DO
NOT run a warm engine with the choke on.
• The Throttle Control (D) is the large black
lever located beside the console to the right
of the seat. The throttle is used to control
engine speed. Move the throttle lever forward to increase engine speed and rearward
to decrease engine speed.
• The PTO switch (E) is the red push/pull
knob located on the console. Pull PTO knob
“up” to engage the electric clutch that drives
the belt connected to the mower deck that
drives the cutting blades. Push the PTO
knob “down” to disengage the electric clutch
that stops the blades from turning within a
few seconds.
• The Hour Meter (F) is the number indica-
tor located on the console. The electric hour
meter is connected to the ignition circuit and
is provided to record the number of hours the
engine runs. If the ignition switch is left on,
without the engine running, the hour meter
will continue to record.
The Park Brake Lever is the lever located on
the left side of the footrest. The brake lever engages compression style parking brakes on the
drive tires. Pull the brake lever up and rearward
until the lever over centers and locks to set the
brakes “on”. Push the brake lever forward and
down to release the brakes “off”.
• The Ignition Switch (A) is the key switch lo-
cated on the console. The ignition switch is
used to start and stop the engine. The switch
has three positions OFF, RUN, and START.
Insert the key into the switch and rotate
clockwise to the RUN position. The Brake Light (B) should be on at this point. Rotate
the switch clockwise to the next (START)
position to engage the engine starter (key
Several Safety Switches are incorporated in this
machine’s design to prevent the engine from
being started in certain conditions and to kill
the running engine in certain conditions. These
circuits should be checked before each operation
to ensure they are working properly. See page
19 for check list on these circuits.
17
The Start Circuits will keep engine from start-
ing unless:
• Both steering levers are swung out in their
neutral locked position, and
• The PTO switch is down in it’s disengaged
position.
The Kill Circuits will stop the running engine
if:
• The operator raises off the seat any time
during operation of the machine with PTO
engaged or steering levers in operating position.
• The steering levers are in their operating position and the park brake lever is moved into
engaged locked (up) position.
• The park brake is set and the steering levers
are moved into their operating position.
• The operator is off the seat and the steering
levers are moved into their operating position.
• The operator is off the seat and the PTO
switch knob is pulled up to its engaged position.
Do not operate this machine unless all
safety systems are working properly
as described above.
PRE-START CHECK LIST
Maintain desirable operational standards and
help ensure the safety of the operator by routinely checking the following on a daily basis:
• W alk around the machine and visually check
for loose or missing components. Make sure
all components are mounted properly and
are in good working condition.
• Make sure all fenders, guards and shields are
safely and securely attached.
• Make sure the discharge shield or restriction
plate is installed at the discharge opening on
the mower deck.
• Make sure all safety decals are clearly readable (see page 7).
• Check hydrostatic transmission fl uid level.
DO NOT operate machine with low fl uid.
Low fl uid could cause damage to transmis-
sion and loss of control of the machine.
• Check engine oil level (refer to “Engine
Manual” for proper level and type of oil
used).
Never attempt to check oil while engine is running.
Fig. 3
• Check for oil and fuel leaks.
• Clean rotating air intake screen on engine.
When mowing in dusty conditions, dry grass
or long grass, it may be necessary to frequently clean rotating air intake screen to
prevent engine overheating.
Never attempt to clean rotating air
intake screen while engine is running.
• Check air cleaner (refer to “Engine Manual”). When mowing in dusty conditions, dry
grass or long grass, it may be necessary to
frequently clean the foam pre-cleaner and
paper cartridge.
18
• Make sure the engine is free of dirt and debris.
• Check fuel level. Refer to “Engine Manual”
for correct fuel for your requirements.
• For best results, use only clean, fresh, unleaded
gasoline with an octane rating of 87 or higher
((R+M)/2 rating method).
• Do Not use ethanol blends of gasoline (such
as E15 or E85) with more than 10% ethanol
by volume. Performance problems and/or
engine damage may result which may not be
covered under warranty.
• Do Not use gasoline containing methanol.
Do not fill fuel tank while engine is
running. Allow engine to cool several
minutes before adding fuel. If fuel is
spilled, do not start engine and avoid
creating a source of ignition until the
fuel is wiped clean and evaporated.
• Check tire pressure (see page 28). Improper
pressure will adversely affect traction, steering and level cutting height.
• Check tires for damage or cracking.
• Check hydrostatic pump drive belt for damage or cracking.
• Check mower deck belt for damage or cracking.
• Check mower deck level.
• Check to ensure blades are sharp and secure; the cutting edge should be positioned
in the direction of blade rotation (clockwise
as viewed from top of mower deck).
• Adjust cutting height if necessary.
• Check operation of park brake (see "Park
Brake Adjustment" page 34).
• Remove grass and debris from machine.
• Test safety interlock systems (see chart below). Perform these tests in a clear open
area and keep bystanders away. If there is a
malfunction during one of these procedures,
DO NOT operate machine. (See your Grasshopper dealer).
Action
Try starting engine
Try starting engine
Try starting engine
Try starting engine
Raise off seat
Raise off seat
Raise off seat
Raise off seat
Move left steering
lever in
Move right steering
lever in
Test Safety Interlock System Daily
Left
Steering
Lever
Out
In
Out
Out
Kill Circuits (with engine running at 1/2 throttle)
Out
In
Out
Out
Out
Right
Steering
Lever
Start Circuits
Out
Out
In
Out
Out
Out
In
Out
Out
PTO
Switch
Off
Off
Off
On
Off
Off
Off
On
Off
Off
Parking
Brake
On
On
On
On
On
Off
Off
On
On
On
Proper
Result
Engine Cranks
Engine will not crank
Engine will not crank
Engine will not crank
Engine does not stop
Engine Stops
Engine Stops
Engine Stops
Engine Stops
Engine Stops
19
MOUNTING AND DISMOUNTING
THE MOWER
Always mount and dismount the mower from the
left side, with the brake on, the PTO disengaged
(down), the engine off, and the steering levers in
their swung out (neutral lock) position. Mount the
mower by stepping from the ground to the left side
of the deck with your left foot, then step over the
deck carrier frame to the footrest with your right
foot. Anti-skid material is provided on the top of
the deck and footrest. Always keep these surfaces
clean and dry. Replace anti-skid material when
necessary. Wait for all moving parts to stop before
dismounting. Dismount the mower by standing up
on the footrest, then turn to the left and step from the
footrest, over the deck carrier frame, to the left side
of the deck with your right foot, and then step to the
ground with your left foot. The left steering lever
can be used to stabilize your movement; however,
it is not strong enough to support all your weight.
Never leave the mower unattended with the key in
the ignition.
position.
• Set the throttle at 1/3 open.
• Insert the key into the ignition switch and
turn to “RUN” position.
• Check to see that the brake lamp is on.
• Turn the key to “START” position. Choke
as necessary to start. When engine starts,
release key immediately. Push choke knob
down gradually until choke is completely off
and engine is running smoothly.
• Warm the engine up at medium speed for
several minutes.
You will enhance the starter life by using short
starting cycles of several seconds. Engaging
starter motor more than 15 seconds per minute
can result in damage to starter.
COLD WEATHER STARTING TIPS
Use proper viscosity oil for temperature expected (see “Engine Manual”).
Set throttle at half open.
STARTING THE ENGINE
Never start the engine in confined
rooms. Exhaust gases contain carbon
monoxide, an odorless and deadly poison.
Do not allow children to approach the
machine while the engine is running.
Do not operate the machine around
open fl ames such as trash fi res.
Do not operate the engine when an
odor of fuel is present or other explosive conditions exist.
• Position yourself on the tractor seat.
• Engage the park brake.
• Place both steering levers in swing-out neutral
position.
• Place electric clutch switch in “OFF” (down)
A warm battery has better starting capacity than
a cold one.
Use fresh winter grade fuel. It is better for winter starting than leftover summer grade fuel.
STEERING LEVER OPERATION
(Refer to page 22, Fig. 4)
Do not move steering levers from forward to reverse or reverse to forward
position rapidly. Sudden direction
changes could cause loss of control or
damage the machine.
Help prevent personal injury. Learn
use of the steering levers and practice at half throttle until becoming
proficient and comfortable with the
operation of the machine.
20
The steering levers control speed, motion and
direction of the machine. The steering levers
have two positions: (1) Neutral Lock, where
the lever(s) are swung completely outward and
cannot be moved fore and aft; (2) Operating,
where the lever(s) are swung in and can be
moved fore and aft.
Neutral Lock Position:
• Forward and reverse movement of the mo-
tion control levers is prevented when levers
are in the swung out (neutral lock) position.
Machine should not move with the steering
levers in the swung out (neutral lock) position and the park brake released. If machine
does move, see “Neutral Adjustment” section page 32-33.
• Steering levers must be in the swung out
(neutral lock) position to start the engine.
• Steering levers must be in the swung out
(neutral lock) position to safely enter and
exit the operator seat.
• Operator can exit mower with the engine
running when the steering levers are in the
swung out (neutral lock) position, PTO
switch is disengaged, and the park brake is
engaged.
Operating Position:
• Machine speed, motion and direction can be
controlled when the engine is running, park
brake is released, and steering levers are in
the swung in (operating) position.
Turning:
• While moving forward, turn gently right by
pushing the left lever further forward than
the right.
• While moving forward, turn gently left by
pushing the right lever further forward than
the left.
• Make a sharp turn right by pushing the left
lever forward and pulling the right lever
rearward at the same time.
• Make a sharp turn left by pushing the right
lever forward and pulling the left lever rearward at the same time.
• DO NOT turn the machine by leaving one
lever in neutral and moving the other lever.
This will cause damage to the turf under the
tire that is not rotating.
Stopping:
• To stop motion, move both steering levers
back to neutral. Machine is equipped with
springs to automatically return both levers to
neutral. If levers do not automatically return
to neutral, see your authorized Grasshopper
dealer for adjustment.
IMPORTANT
If you become confused during operation, release both steering levers.
They will automatically return to the
centered neutral position and the machine will stop.
Neutral
• When the steering levers are swung in and
centered fore and aft, they are in operating
(neutral). In operating (neutral), the hydrostatic pumps do not deliver fl uid to the wheel
motors.
Forward and Reverse Motion:
• Pushing both levers forward at the same time
will move the machine forward.
• Pulling both levers to the rear at the same
time will move the machine in reverse.
• The further forward or rearward the steering
levers are moved, the faster the machine will
move in that direction.
21
STEERING LEVER OPERATION
FORWARD
SHARP
LEFT
REVERSE
SHARP
RIGHT
GENTLE
LEFT
GENTLE
RIGHT
07033B
Fig. 4
22
CUTTING HEIGHT ADJUSTMENT
(Refer to Fig. 5)
1. The mower deck cutting height adjustment
mechanism is located to the right front of
the operator seat on the deck carrier frame.
2. When adjusting cutting height always come
to a complete stop, disengage (down) the
PTO and wait for blades to stop rotating.
3. Pushing down on the foot lever (A) with
your foot will raise the deck and take pressure off the height adjustment pin (B).
4. To change cutting height, push down on the
foot lever (A) and rotate the deck latch (F)
behind the latch tube guide (E) to support
the deck. This puts the deck in the transport
(5 inch cut) height position.
5. With the deck supported by the deck latch
(F), place the height adjustment pin (B) in
the hole indicated by the cutting height decal for the desired cutting height.
6. T o set the deck at this cut height, push down
on the foot lever (A) until pressure on the
deck latch (F) is released and lift the deck
latch (F) out from behind the latch tube
guide (E). Then slowly decrease pressure
on the foot lever (A) to allow the deck to
lower and the adjustment tube (C) to move
backward through the latch tube guide (E)
until the height adjustment pin (B) contacts
the end of the latch tube guide (E) and supports the deck.
7. Holes provided in the adjustment tube (C)
allow for cutting height adjustment in 1/2
inch increments. A height adjustment spacer (D) is provided to allow for cutting height
adjustment in .25 inch increments.
8. To set cutting height at a .25 inch increment,
the height adjustment spacer (D) should be
located between the height adjustment pin
(B) and the end of the latch tube guide (E).
9. To set the cutting height at a .5 inch increment, the height adjustment spacer (D)
should be located forward of the height adjustment pin (B).
F
E
B
C
Right
Side
Fig. 5
D
MOWING
Walk area before mowing, picking
up all rocks, twigs and other debris.
Enter new areas carefully. Cut grass
higher the fi rst time to allow mower to
clear unseen objects. Never assume an
area is clear - always check!
Clear mowing area of all people when
operating mower. Thrown objects
could injure bystanders.
Before starting to mow , position the machine in the area to be mowed with the
mower deck set at the desired cutting
height. With the engine at half throttle,
pull up on the PTO switch knob to start
the blades turning. Accelerate to full
throttle to begin mowing.
To avoid serious injury or death from
thrown objects or contact with blades,
NEVER operate mower without discharge shield or restriction plate
installed.
Keep hands and feet away from discharge opening.
A
12067
23
Before mowing, analyze the area to determine
the best mowing procedure. Consider height,
type of grass and terrain type (rolling, level or
rough).
Proper ground speed for mowing will depend on
the height, type and density of grass to be cut.
Normally, ground speed will range from three
to six miles per hour. Tall dense grass should
be mowed at a low speed, while thin medium
height grass can be cut at a faster ground speed.
Always operate engine at full governed rpm
when mowing. This is necessary to maintain
proper blade speed to produce a clean cut.
BLADES
HI-LOW MULCHING BLADE
Hi-Low mulching blades are recommended with
the discharge restriction plate and front shrouds
installed (down discharge mulching option).
MEDIUM LIFT BLADE
Medium lift blades are recommended when
the optional vacuum attachment is installed.
Follow local recommendations for the suitable
cutting height in your area. Avoid mowing grass
too short to increase mowing intervals. This may
stress the grass during hot weather and encourage weed growth during the growing season.
Mow with uncut grass to the left. This will
distribute the clippings over the cut area. Discharging clippings over the uncut area will cause
a grass buildup and may prevent uniform cutting.
Remember that sharp blades produce cleaner
cuts and use less power.
Extremely tall grass should be mowed twice.
Cut grass higher on fi rst pass. Cut the second
time at desired height and 90° to the fi rst pass.
CONTOUR BLADE
Contour blades are designed for operation
with the side discharge shield and may be
used when the optional vacuum attachment
is installed.
HIGH LIFT NOTCHED BLADE
High lift notched blades should be used when
the side discharge shield has been installed.
These blades are recommended for mowing
tall and/or lush areas.
Fig. 6
24
UNEVEN TERRAIN
Be careful when operating mower on
uneven ground.
Do not operate on steep slopes. Operation on a steep slope could cause
loss of control, machine to overturn
and personal injury or death.
• Do not operate on slopes over 15 degrees
(27%). This machine was not specifi cally
designed to operate on steep slopes.
• The operator is responsible for safe opera-
tion on slopes, even slopes of 15 degrees
(27%) or less. Only the operator can determine the stability of the mower on a given
slope based on existing conditions like: machine speed and direction, slope variation,
slipperiness, drop-offs, holes, obstacles, etc.
• To determine the angle of a slope, an angle
measuring device (protractor/inclinometer)
is readily available at your local hardware
store.
• Always start mowing at the bottom of slopes.
Traveling up slopes, this machine has more
traction traveling forward than reverse. Be
careful on slopes to avoid driving forward
into a position where there is not enough
traction to enable backing out or stopping.
• Tires may lose traction on slopes even
though the brakes are functioning properly.
• Avoid sudden starts and acceleration when
traveling forward uphill as mower may tip
backwards.
• Do not mow slopes when grass is wet because
slippery conditions will reduce traction and
braking which in turn affects steering.
• Use caution when making turns. Slow the
mower down before making sharp turns. Unit
can spin very rapidly by positioning one lever
too much ahead or behind the other.
• Look around you to be sure the area is clear
before turning or backing up.
• Avoid starting or stopping on a slope. If
tires lose traction, disengage the blades and
proceed slowly straight down the slope.
• Keep all movement on slopes slow and grad-
ual. Do not make sudden changes in speed
or direction.
• Follow manufacturer’s recommendation
for counterweights for added stability when
operating on slopes or using front or rear
mounted attachments. Remove weights
when not required.
• Use extra care with grass catchers or other
attachments. These can change the stability
of the machine. Do not use grass catcher on
steep slopes.
• Do not operate without OPS installed.
• Always wear seatbelt.
• Be certain that the seatbelt can be released
quickly if the machine is driven or rolls into
ponds or water.
• Check carefully for overhead clearances
such as, branches, doorways, or electrical
wires, before driving under any objects and
do not contact them.
STOPPING THE ENGINE
• Set the throttle at 1/3 open. Allow engine to
idle at this setting for several minutes.
• Move ignition switch to “OFF” position (upright) and remove key.
• Never use carburetor choke to stop engine.
Always remove key from ignition
switch when leaving machine unattended or when not in use.
25
MOVING MACHINE WITHOUT
POWER
TRANSPORTING MACHINE
(Refer to Fig. 7)
The integrated transmissions are equipped with a
bypass valve that allows the machine to be moved
without power by deactivating the transmission.
With the bypass valve in normal operating position, the fl uid in the transmission will make it
diffi cult to move the unit (even with the steering
levers in neutral position). The bypass valve is
located on the front of each transmission. Before activating the bypass valve, set the park
brake. Raise the seat and activate the bypass
valve by rotating lever toward the left side of
unit. When BOTH transmissions are deactivated, the unit becomes “freewheeling”, allowing it
to be moved. Before the transmissions become
operational, the bypass valves must be returned
to their normal operating position.
Be careful activating bypass valves
when machine is on a slope. Machine could “freewheel” out of control
causing serious injury or damage to
equipment.
LEFT
SIDE
12068
BYPASS VALVE
(SHOWN IN NORMAL
OPERATING POSITION)
ROTATE LEVER
TO ACTIVATE
("FREEWHEELING")
Always back machine onto trailer to
avoid accidental upset.
Use a heavy-duty trailer to transport your
machine. Trailer must have signs and lights required by law.
1. Raise mower deck to the transport (highest)
height position.
2. BACK machine onto trailer. See "LOADING MACHINE".
3. Stop the engine, engage the park brake and
remove the key .
4. Lower the mower deck to the lowest position.
5. Securely fasten machine to trailer with
heavy-duty straps, chains or cables. Both
front and rear straps must be directed down
and outward from machine.
LOADING MACHINE
Loading a machine onto a trailer or
truck increases the possibility of backward-tip-over and could cause serious
injury or death.
1. Use extreme caution when operating a machine on a ramp. Move slowly.
2. Avoid sudden acceleration and deceleration
when operating a machine on a ramp.
3. BACK machine up ramp and drive forward
down ramp.
4. Use only a single, full width ramp; DO NOT
use individual ramps for each side of the
machine.
5. If individual ramps must be used, BACK
machine up ramp and drive forward down
ramp.
6. DO NOT exceed a 15 degree angle between
ramp and ground or between ramp and trailer or truck.
Fig. 7
26
STORING SAFELY
Never store machine with gasoline in
the tank inside a building where fumes
may reach an open fl ame, spark or pi-
lot light as on a furnace, water heater,
clothes dryer, or other gas appliance.
Allow engine to cool before storing in
an enclosure.
Never run engine indoors or in an enclosed area, unless exhaust gases are
safely removed to the outdoors with
an exhaust pipe extension/hose combination. Exhaust gases contain carbon
monoxide, an odorless and deadly poison.
• If engine is to be unused for 30 days or more,
add a fuel stabilizer to the fuel system. Fuel
stabilizer (such as STA
able additive in minimizing the formation
of fuel gum deposits during storage. Add
stabilizer to gasoline in fuel tank or storage
container. Always follow mix ratio found on
stabilizer container. Run engine at least 10
minutes after adding stabilizer to allow it to
reach the carburetor.
• Remove all accumulated debris from mower
deck and tractor.
• Sand areas where paint is chipped and repaint to prevent rust. Lubricate all locations
to prevent moisture damage during storage.
.
BIL®) is an accept-
27
LUBRICATION AND MAINTENANCE
Apply 1/2 to 1 Stroke
Every 8 Hours of Usage
Front Wheel Bearings (A) (two fittings)
Always perform maintenance with the
machine parked on a hard level surface; with the engine stopped and the
PTO disengaged; with the park brake
set; and with the key removed from
the ignition.
Always remove the grounded (-) clamp
from the battery when performing
maintenance on the engine, clutch, or
any other electrical system. Battery is
located under the right fender.
Always wear safety glasses and ear
protection when performing any
maintenance function that could cause
injury to eyes or ears.
A
A
12070
Fig. 8
CAPACITIES
Fuel T ank.....................................................1 1.3 liter
(Refer to Fig. 8)
Do not let excess grease collect on or around
parts, particularly when operating in sandy areas.
See accompanying illustrations for lubrication
frequency points. Severe or unusual conditions
may require more frequent lubrication.
In addition to these lubrication points, lightly oil
all linkage pivot points.
Use SAE multipurpose type grease for all locations shown. Be sure to clean fi tting thoroughly
before using grease gun.
TIRE AIR PRESSURE
Drive Tires 20 x 10 x 10...............55 kPa (8 psi)
(Refer to decal on wheel for correct tire air
pressure)
Front Tires.................................83 kPa (12 psi)
Refer to the “Engine Manual” for the timetable
for changing or service.
COOLING SYSTEM
Inspect the engine cooling fi ns periodically for
buildup of grass and debris. Buildup on the
cooling fi ns will cause the engine to overheat.
Removal of engine cowling may be required to
clean the fi ns, especially if cleaned infrequently.
Do not use high-pressure water or
steam to clean the engine or drive
compartment. Water and cleaning
28
detergent may damage electrical
components and terminals, possibly
leading to component and safety circuit failure.
LEFT
SIDE
Use a vacuum cleaner or air blower to remove
foreign material from the engine and drive compartment.
BATTERY MAINTENANCE
Battery is located under the right fender. Follow
the procedure below for battery maintenance.
• Clean battery.
• Inspect cables for loose connection.
• Clean terminals.
• Inspect battery tray and hold-down.
• Inspect battery case for cracks or leaks.
Batteries contain sulfuric acid. Avoid
contact with skin, eyes and clothing.
Batteries produce a highly explosive
hydrogen gas while being charged.
Always keep cigarettes, sparks, open
flame and other sources of ignition
away from battery. Always shield
eyes and face from battery. In the
event of accident, fl ush with water and
call a physician immediately. Keep
batteries and acid out of the reach of
children.
CHECKING DRIVE SYSTEM
FLUID LEVEL
Check fluid level with the engine turned off
and fl uid at normal operating temperature. The
transmission fl uid reservoirs are located at the front
of each transmission. T o check the fl uid level, raise
the seat and remove the breather/dipstick from
the reservoir. The fl uid level should be equal to
the "hot" mark on the dipstick (Refer to Fig. 9).
If fl uid is required, use CoolTemp Hydro-Max™
Extended-Life Hydrostatic Fluid (Grasshopper part
no. 345044 for 1 quart [.94 l] container).
BREATHER/
DIPSTICK
12069
FILTER AND PLUG &
O-RING ASSEMBLY
REMOVE PLUG TO
CHANGE FILTER
Fig. 9
DRIVE SYSTEM FLUID AND
FILTER MAINTENANCE
For Drive System, use CoolT emp Hydro-Max™
Extended-Life Hydrostatic Fluid, part no.
345044 for 1 quart (.94 l) container or part no.
345046 for 2 gallon (7.52 l) container. Use part
no. 130605 high effi ciency oil fi lter.
CHANGING DRIVE SYSTEM
FLUID
(Refer to Fig. 9)
Raise the seat. Place a drip pan under the
transmission reservoir and fi lter (at the front of
the transmission). Remove plug and fi lter and
drain fluid into the pan. Allow transmission
to drain completely. Install a new fl uid fi lter
and plug. torque plug to 115-135 in. lbs. Fill
reservoir with fluid. Let engine idle a few
minutes. Check fl uid level and refi ll if needed.
Repeat procedure for other transmission.
DO NOT operate machine with low
fl uid. Low fl uid could cause damage
to drive system and loss of control of
the machine.
29
DECK CLEANING
BLADE SHARPENING
IMPORTANT
After each use remove grass buildup
from under the mower deck. Excessive grass buildup will interfere with
the operation and performance of the
mower deck. Excessive grass buildup
may also cause component failure.
1. Park machine on hard level surface, stop
engine and set the park brake. Remove key
from the ignition switch.
2. Position the mower deck in the transport (all
the way up) setting.
3. Lift the front of the machine, and support the
machine using jack stands or other equivalent safety blocks. Do NOT rely solely on
mechanical or hydraulic jacks or lifts for
support. Always use adequate wheel chocks
on tires remaining on the ground.
4. Use a long fl at bar to clean under the deck,
to avoid positioning yourself under the machine.
5. Clean out all grass and debris build-up from
the underside of the deck, around blade spindles and the deck discharge chute.
IMPORTANT
When sharpening blades, be sure to
balance them. Unbalanced blades
will cause excessive vibration that can
damage blade spindle bearings. Vibrations may also cause structural
cracks in mower housings.
Follow original sharpening pattern. Do not
sharpen backside of blade. Do not sharpen
blade to a razor edge, but leave approximately
.016 inch (.4 mm) blunt edge.
BLADE REMOVAL
(Refer to Fig. 10)
Remove bolt (A), which has right hand threads.
Remove washer (B), fl at washer (C), fi ber wash-
er (D) and blade.
Blade
Spindle
Housing
BLADE INSPECTION
Do not handle mower blades with bare
hands. Use heavy leather gloves or
wrap blade with protective material
and block securely when removing
blades. Careless or improper handling may result in serious injury.
Inspect blades before each use to determine
that they are mounted securely and are in good
condition. Replace any blade that is bent, excessively nicked, worn, or has any other damage.
Small nicks can be ground out when sharpening.
Washer
Deflector
Cone
12080
D
C
B
A
Lift of Blade
Fig. 10
30
BLADE INSTALLATION
Your dealer can supply Grasshopper
replacement blades. They are made
of special steel alloys and subjected
to rigid heat-treat and inspection requirements. Substitute blades may
not meet these rigid specifi cations and
MAY BE DANGEROUS.
Reverse the removal procedure. Be
sure fiber washer and cone are installed as shown.
IMPORTANT
When installing a blade, the lift of the
blade must be toward blade spindle
housing (refer to Fig. 10). T ighten bolt
(item A, Fig. 10) into blade spindle
housing to 50-55 ft lbs (68-75Nm).
31
ADJUSTMENTS AND TROUBLESHOOTING
Always make adjustments with the
machined parked on a hard level surface; with the engine stopped and the
PTO disengaged; with the park brake
set; and with the key removed from
the ignition.
Always remove the grounded (-) clamp
from the battery when performing
maintenance on the engine, clutch, or
any other electrical system. Battery is
located under the right fender.
LOSS OF POWER IN THE DRIVE
SYSTEM
Check the fl uid level and make sure the proper
amount of fl uid is in the reservoir . Make sure all
hydraulic connections are tight and not leaking.
Make sure drive belt is tight and not slipping.
Check park brake adjustment. Make sure pump
bypass valve is tight so pump does not freewheel.
DRIVE BELT REPLACEMENT
(Refer to Fig. 11)
1. Remove the deck belt (A) as described in
“Deck Belt Replacement” section (page 37).
2. Remove the clutch center bolt (B) and slide
the clutch (C) off the engine's crankshaft.
3. Loosen the .375" idler arm pivot bolt (D)
and remove the .312" bolt (E) securing belt
tensioner bracket in place. Using a half
inch drive break-over bar or racket, inserted
in half inch square hole, rotate idler pulley
away from belt, relieving belt tension.
4. Remove the belt (F) from pulleys.
5. Install the new belt with the idler tension
bracket loose. Using the break-over bar,
reinstall the .312" bolt (E) (normally in
center hole) in the idler tensioner bracket
and secure. Do not over tighten belt. Belt
should only be tight enough to prevent belt
from slipping. Retighten .375 idler arm
pivot bolt (D).
6. Install the deck belt as described in “Deck
Belt Replacement” section (page 37).
A
F
B
D
C
12071
E
1/2" SQ.
HOLE
Fig. 11
NO POSITIVE NEUTRAL POSITION
If drive wheels travel forward or backward when
the steering lever is in swing-out position (neutral), adjustment is required.
NEUTRAL ADJUSTMENT
(Refer to Fig 12)
1. Block up under tractor frame so both drive
wheels are off the ground.
2. Make sure parking brake is released.
3. Remove linkage rods (A) from transmission
neutral return arm (B).
4. Place steering levers in the neutral swing-out
position and start engine.
5. If either of the drive wheels turn, proceed
with the following adjustment.
6. With a .25" allen wrench loosen the socket
head cap screw (C) directly below the control
lever (D). Rotate the neutral return assembly left or right until neutral is achieved.
Tighten socket head cap screw.
7. Repeat procedure for transmission on the
other side.
8. Reinstall linkage rod (A) in neutral return
arm (B). If ball joint does not reinstall into
neutral return arm without moving the return
arm, adjust length of linkage rod until it does
to assure neutral adjustment will be maintained when linkage is connected.
9. Test-drive machine for straight-line travel
32
with both levers full forward. If travel is
not in a straight line, adjust the steering lever stop on the side that is the fastest, i.e.,
if machine goes to the left, adjust the right
steering stop to slow down the right transmission until travel is straight ahead.
C
D
the levers are allowed to lean toward the center
when the mounting bolts are tightened, free play
in the mounting holes may allow the levers to
hit each other.
When completing a maintenance
function, make sure all shields are in
good condition and are installed before placing unit back into use.
1" minimum
B
A
12077
(Left Side Shown)
Fig. 12
STEERING LEVER ADJUSTMENT
(Refer to Fig. 13)
Steering levers are secured to the lever mount
blocks with mounting bolts and nuts. A .5 inch
wrench is required to adjust the levers.
To adjust steering lever position, loosen nut on
the top mounting bolt. In the swung in (neutral)
position, the lever can now move forwards and
backwards without moving the lever mount. If
the lever mount moves with the steering lever,
the bottom mounting bolt may need to be loosened. Set both levers in line and in a comfortable
position for the operator. Move levers to the
swung out (neutral lock) position and tighten top
nuts and bottom nuts if loosened. Both mounting bolts MUST be tight to assure steering lever
control of the machine.
12079
Nuts
Bolts
Fig. 13
Steering levers must line up in the swung in
(neutral) position. Maintain one inch (25mm)
minimum clearance between ends of levers. If
33
ENGINE TROUBLESHOOTING
Should you experience trouble in starting the
engine, use the following guide to locate possible causes.
Engine will not crank:
• Battery is discharged.
• Blown starter fuse.
• PTO switch in “ON”.
• Steering levers are not out in neutral.
• Steering lever switches are out of adjustment
(listen for the switch “click”).
• A loose wire or connection.
Engine cranks, but will not start:
• Fuel tank is empty.
• Restricted fuel line or fuel fi lter.
• A loose wire or connection.
If the above points do not locate the problem,
contact your authorized Grasshopper dealer for
repair.
the safety switch, adjust the switch in the
mounting slots so it does.
.25" to .5"
LINKAGE
ROD
BRAKE
ARM
06006
PARK BRAKE ADJUSTMENT
IMPORTANT
The performance of this parking
brake depends on the tire used. Tire
size, tread pattern, and tire pressure
are important. Use only Factory supplied tires and wheels. Make sure tires
are infl ated to the proper pressure.
1. Stop engine, wait for all moving parts to stop,
and remove key .
2. Disengage the park brake.
3. Adjust the linkage rod attached to the left brake
until the clearance between the brake arm and
the tire tread measures .25 inch to .5 inch (6mm
to 13mm) with the park brake disengaged (see
Fig. 14).
4. Repeat step 3 for the right side.
5. Engage and disengage park brake to check
for proper engagement and disengagement.
Readjust if necessary .
6. Be sure all cotter pins and jam nuts are secured.
7. Make sure the brake light is on when the park
brake is set. If the brake lever does not contact
Fig. 14
CLUTCH/BRAKE BURNISHING
IMPORTANT
A new clutch, or one that has not been
used for three months, will require
burnishing to dress drive surfaces.
The clutch could fail if you do not accomplish the following procedure.
Place tractor in neutral, start engine and run at
half throttle. Turn clutch switch on 30 seconds
and off 30 seconds, fi ve times at half-throttle
and repeat fi ve times at full throttle. The time
interval allows the clutch surface to cool.
34
CLUTCH REMOVAL/
REPLACEMENT
(Refer to Fig. 15)
1. Remove the deck belt (A) as described in “Deck
Belt Replacement” section.
2. Remove the center bolt (B) and slide the clutch
(C) off the engine crankshaft.
3. To install clutch, reverse order and install deck
belt as described in “Deck Belt Replacement”
section.
4. Tighten center bolt (B) to 50 ft lbs (68Nm).
After 15 minutes of clutch usage retighten the
bolt to 50 ft lbs (68Nm).
A
B
C
12075
Fig. 15
MOWER DECK LEVELING
ADJUSTMENT
(Refer to Fig. 16 & 17)
NOTE: The object is to have the mower blades
cutting level side to side and cutting slightly
lower in the front, with about the same weight
on each mower deck hanger chain.
Mower blades are sharp. Wear heavy
gloves or cover sharp edges of blades.
1 Check air pressure on all four tires and adjust
to the correct pressure if necessary.
2. Mower deck can be leveled at any cut height
position. If blade heights do not match cut
height setting, do not adjust at this time.
Mower deck must be leveled side to side
and front to rear before cut height setting is
adjusted. See appropriate sections below.
Measure
Level Surface
A
B
C
D
Measure
99101
Fig. 16
D
12076
Fig. 17
3. Position left blade in the side to side position
and measure from the outside blade tip to the
level surface (refer to Fig. 16).
4. Position right blade in the side to side
position and measure from the outside blade
tip to the level surface.
5. If the difference between both measurements
is greater than .125 inch (3mm), adjustment
is necessary.
6. Locate the level adjust screw (A) on the right
rear mower deck hanger (refer to Fig. 17).
7. Slightly loosen the .438 chain bolt (C) on
the right rear mower deck hanger and level
adjust bracket (B).
8. Adjust the right rear of the mower deck up
or down as required to match the left rear by
turning the level adjust screw (A) clockwise
to raise and counter-clockwise to lower.
9. Adjust the level adjust screw (A) until blades
on both sides are the same height above the
level surface.
10. With blades leveled side to side, tighten the
35
.438 chain bolt (C) securely.
11. Position left blade in the front to rear position.
Measure from the left front blade tip to the
level surface. With the blade in the same
position, measure from the left rear blade tip
to the level surface.
12. The distance measured at the rear blade tip
should be .125 to .25 inch (3mm to 6mm)
higher than at the front blade tip (Refer to
Fig. 18).
13. If the front to rear adjustment is not within
the given tolerance, then either adjustment is
necessary or the left blade may be bent.
14. Check to see if the left blade is bent by
turning it 180° and measure from the left
rear blade tip to level surface again. If the
result is different by more than .125 inch
(3mm), the left blade is bent and should be
replaced.
15. If the blade is straight and adjustment is
necessary, locate the level adjust screw on
the left front mower deck hanger.
16. Slightly loosen the .438 chain bolt on the left
front mower deck hanger and level adjust
bracket.
17. Adjust the left front of the mower deck up
or down by turning the level adjust screw
clockwise to raise and counter-clockwise to
lower until the front blade tip is .125 to .25 inch
(3mm to 6mm) higher than the rear blade tip.
18. Tighten the .438 chain bolt securely .
19. Repeat steps 11 through 18 above on the right
side.
20. Check that each of the mower deck hanger
chains (D) are tight and are carrying weight. If
a chain is loose, adjust as necessary .
AA + .125 to .25
Level Surface
99103
Fig. 18
MOWER DECK CUT HEIGHT
SETTING ADJUSTMENT
NOTE: Adjust side to side and front to rear
mower level before adjusting cut height.
1. Check air pressure on all four tires and adjust to
the correct pressure if necessary .
2. With foot pedal, set the cut height at the notch
marked 3.
3. Position left blade in the side to side position
and measure from the outside blade tip to the
level surface (refer to Fig. 18).
4. Position right blade in the side to side position
and measure from the outside blade tip to the
level surface.
5. If the difference between both measurements
is greater than .125 inch (3mm), side to side
adjustment is necessary (see previous section).
6. If both measurements are between 2.875 inches
(73mm) and 3.125 inches (79mm), adjustment
is not necessary .
7. If both measurements are less than 2.875 inches
(73mm) or greater than 3.125 inch (79mm),
adjustment is necessary .
8. To adjust the cut height, place blocks under
both sides of the deck so there is slack in the
hanger chains. The actual cut height is .5"
(13mm) above the sides of the deck.
9. Loosen the 2 bolts that secure the cut height
indicator.(Refer to page 23, Fig 5)
10. If the deck cut height needs raised, slide the
cut height indicator forward.
11. If the deck cut height needs lowered, slide
the cut height indicator back.
12. With blade cut height correct, securely
tighten the bolts.
13. Make sure foot pedal still engages in upper
most position.
36
DECK BELT ADJUSTMENT
(Refer to Fig. 19)
The belt tension is set at the factory, but may
need adjustment after the fi rst hour of initial use.
Periodically belt should be checked for proper
tension, following the procedure below:
1. Position the mower deck in the lowest (1.5
inch) cut height setting.
2. Loosen the lock nut (A) and adjust the draw
nut (C) to change belt tension.
3. Increase belt tension by turning the draw nut
(C) clockwise and decrease belt tension by
turning the draw nut counterclockwise.
4. The idler spring (B) body length should
measure approximately 5.75" for proper belt
tension.
5. Tighten the lock nut (A) when the proper
belt tension is achieved.
DECK BELT REPLACEMENT
(Refer to Fig. 20)
Major causes of belt failure are improper installation and tension. Before installing a new belt,
check spindle shafts and bearings for excessive
endplay and wear by moving each spindle shaft
side to side and up and down. Be sure they turn
smoothly and freely. Make sure idler is still aligned with spindle sheaves. Check sheave
grooves for cleanliness and wear. If grooves
require cleaning, use a cloth moistened with
a nonfl ammable nontoxic degreasing agent or
commercial detergent and water.
Avoid excessive force during installation. Do
not use tools to pry belt on or roll belt over
sheaves. This can cause hidden damage and
premature belt failure.
1. Position the mower deck in the lowest (1.5
inch) (38mm) cut height setting and remove
the left and right belt shields.
2. Loosen the lock nut (A) and back off (counterclockwise) the draw nut (B) until tension
is released from the old belt (C) and it can be
lifted off the deck sheaves.
3. Install the new belt following Fig. 20 for
proper belt routing.
4. Reset the belt tension using the procedure in
the “Deck Belt Adjustment”.
5. Re-install the left and right belt shields.
B
A
12074
Fig. 19
C
12072
BELT TO CLUTCH
C
52 DECK
A
B
Fig. 20
37
BLADE SPINDLE ASSEMBLY
REMOVAL
BLADE SPINDLE ASSEMBLY
REPAIR/REPLACEMENT
(Refer to Fig. 21)
1. It is not necessary to raise machine to remove the blade spindle assembly.
2. Raise the mower deck to the highest position.
3. Remove blade. Be careful handling sharp
blades. Use protective material and block
securely when removing blades.
4. Lower mower deck to the lowest (1.5 inch)
cut height.
5. Remove belt shields.
6. Remove deck belt. See Deck Belt
Replacement section above.
7. Remove the top bolt (2) and cup washer (3)
from the spindle sheave (1).
8. Mark spindle sheave (1) on the topside so it will
not be installed upside down on re-assembly .
9. Remove the spindle sheave (1) with a wheel
puller. Make note if you remove any spacers
or washers not shown in the illustration, as
they will need to be reinstalled as they were
removed. Spindle shaft (9) may fall out of the
spindle assembly to the ground after removing
sheave.
10. Remove square key (16) and bearing shield (4)
and save for re-assembly .
11. Remove spindle assembly by removing the six
bolts or nuts (17 or 18) that attach the spindle
housing (7) to the mower deck. Spindle
assembly will fall to the ground if not supported.
Protect spindle housing as necessary .
(Refer to Fig. 21)
1. Remove blade spindle assembly as described
previously.
2. Press spindle shaft (9) down through bearings
(6) and spindle housing (7).
3. Press bearings (6) out of housing (7) or
remove from shaft (9) as necessary.
4. Visually inspect parts for excessive wear,
corrosion, or damage. Feel parts and rotate
bearing races to check for rough spots or
excessive wear.
5. Replace with new parts as necessary.
6. Install lower bearing (6) on spindle shaft (9).
7. Install bearing spacer (8) on shaft.
8. Install this assembly into housing (7).
9. Press top bearing (6) onto shaft (9) down
against bearing spacer (8).
10. Rotate assembly to make sure shaft moves
freely.
11. Secure spindle assembly to the mower deck
with the six nuts or bolts (17 or 18). Torque
to 21 ft lbs.
12. Install bearing shield (4), square key (16),
sheave (1), cup washer (3) and bolt (2) in
same sequence as removed. Place a block
under the spindle shaft (9) if necessary to
hold it up in the spindle housing.
13. Make sure the concave side of the cup washer
(3) is down toward the sheave and torque top
bolt (2) to 38 ft lbs.
14. Rotate assembly to check for free movement.
15. Install deck belt and belt shields.
16. Install blade and tighten bolt (15) to 50-55
ft lbs.
38
17
18
2
3
1
16
4
5
6
7
8
6
9
10
11
13
12
14
15
10128
Fig. 21
39
TRACTOR ASSEMBLY
Item Order Description
No. No.
1 645376 Frame
2 100153 Engine
3 100919 Air Filter - Cyclonic
4 100803 Oil Filter
5 101197 Muffl er
101043 Gasket - Muffl er
6 243016 Tap Screw
7 424319 Hose Assembly - Drain
8 365515 Plug
9 254431 Speed Nut
10 729734 Shield – Rear Guard
11 142250 Mechanical Choke
12 603854 Throttle Assembly
323643 Cable Assembly
722009 Throttle Lever Stop
722736 Throttle Stop – Heavy Duty
13 422150 Handle Grip
14 723062 Mount - Battery
15 420610 Hold Down Stra
16 424250 Grommet
17 605791 Fuel Tank Assembly
(includes items 18-21)
18 100212 Cap – Fuel Sealed Tether
19 363925 Fuel Tube
20 101875 Bushing – Fuel Tube
21 100216 Valve – Fuel Tank
22 730451 Rod – Fuel Tank Mount