Toro TimeCutter ZD420 Riding Mower Riding Product Operator's Manual

Form No. 3354-742 Rev A
TimeCutter® ZD380 and ZD420
Riding Mowers
Model No. 74432—Serial No. 260000001 and Up
Model No. 74433—Serial No. 260000001 and Up
Register your product at www.Toro.com
Original Instructions (EN)
Introduction
Figure 2
Read this information carefully to learn how to
operate and maintain your product properly and
to avoid injury and product damage. You are
responsible for operating the product properly
and safely.
1. Safety alert symbol.
This manual uses two other words to highlight
information. Important calls attention to special
mechanical information and Note emphasizes
general information worthy of special attention.
You may contact Toro directly at www.Toro.com
for product and accessory information, help
finding a dealer, or to register your product.
Contents
Whenever you need service, genuine Toro parts,
or additional information, contact an Authorized
Service Dealer or Toro Customer Service and have
the model and serial numbers of your product
ready. Figure 1 identifies the location of the model
and serial numbers on the product. Write the
numbers in the space provided.
Introduction ....................................................... 2
Safety .................................................................. 4
Safe Operation Practices for
Ride-on (riding)
Rotary Lawnmower
Machines............................. 4
Safe Operating Practices ...................... 4
Toro Riding Mower Safety ................... 5
Sound Pressure.................................... 6
Sound Power ....................................... 6
Vibration............................................. 6
Slope Chart ......................................... 8
Safety and Instructional Decals ............ 9
Product Overview ............................................. 12
Controls ........................................... 13
Operation.......................................................... 15
Think Safety First .............................. 15
Recommended Fuel........................... 15
Checking the Engine Oil Level ........... 16
Starting and Stopping the
Engine .............................. 16
Driving Forward or Backward ............ 17
Operating the Blades ......................... 18
Stopping the Machine ........................ 18
The Safety Interlock System............... 19
Adjusting the Height of Cut ............... 19
Changing Operation Modes............... 20
Operation in the Collection
Mode ................................ 20
Operation in the Recycler®
Mode ................................ 24
Positioning the Seat ........................... 24
Adjusting the Motion Control
Levers ............................... 24
Pushing the Machine by Hand............ 25
Adjusting the Footrest ....................... 25
Operating Tips .................................. 25
Figure 1
1. Model and serial number plate
Write the product model and serial numbers in the
space below:
Model No.
Serial No.
This manual identifies potential hazards and has
safety messages identified by the safety alert
symbol (Figure 2), which signals a hazard that may
cause serious injury or death if you do not follow
the recommended precautions.
© 2006—The Toro® Company
8111 Lyndale Avenue South
Bloomington, MN 55420
2
Contact us at www.Toro.com.
Printed in the USA.
All Rights Reserved
Maintenance...................................................... 27
Recommended Maintenance
Schedule(s) ............................... 27
Premaintenance Procedures....................... 28
Accessing the Machine....................... 28
Lubrication................................................ 29
Greasing the Bearings ........................ 29
Engine Maintenance.................................. 29
Servicing the Air Cleaner ................... 29
Servicing the Engine Oil .................... 30
Servicing the Spark Plug .................... 32
Fuel System Maintenance .......................... 33
Draining the Fuel Tank ...................... 33
Replacing the Fuel Filter .................... 34
Electrical System Maintenance................... 34
Servicing the Battery.......................... 34
Servicing the Fuses ............................ 36
Drive System Maintenance......................... 37
Checking the Tire Pressure................. 37
Mower Maintenance .................................. 37
Servicing the Cutting Blades............... 37
Leveling the Mower from
Side-to-Side....................... 39
Adjusting the Front-to-Rear Blade
Slope ................................. 40
Removing the Mower ........................ 41
Mower Belt Maintenance ................... 41
Installing the Mower .......................... 42
Cleaning .................................................... 43
Cleaning the Collection
Sensors.............................. 43
Washing the Underside of the
Mower............................... 43
Storage.............................................................. 44
Cleaning and Storage ......................... 44
Troubleshooting................................................ 45
Schematics ........................................................ 49
3
Safety
◊ being driven too fast;
Safe Operation Practices
for Ride-on (riding) Rotary
Lawnmower Machines
◊ the type of machine is unsuitable for its
task;
◊ inadequate braking;
◊ lack of awareness of the effect of
ground conditions, especially slopes;
This machine meets or exceeds European
Standards in effect at the time of production.
However, improper use or maintenance by the
operator or owner can result in injury. To reduce
the potential for injury, comply with these safety
instructions and always pay attention to the
safety alert symbol, which means CAUTION,
WARNING, or DANGER -“personal safety
instruction.” Failure to comply with the instruction
may result in personal injury or death.
◊ incorrect hitching and load distribution.
Preparation
• While mowing, always wear substantial
footwear and long trousers. Do not operate
the equipment when barefoot or wearing open
sandals.
• Thoroughly inspect the area where the
equipment is to be used and remove all objects
which may be thrown by the machine.
Safe Operating Practices
• Warning-Fuel is highly flammable.
The following instructions are from the CEN
standard EN 836:1997.
– Store fuel in containers specifically designed
for this purpose.
This product is capable of amputating hands and
feet and throwing objects. Always follow all safety
instructions to avoid serious injury or death.
– Refuel outdoors only and do not smoke
while refuelling.
– Add fuel before starting the engine. Never
remove the cap of the fuel tank or add fuel
while the engine is running or when the
engine is hot.
Training
• Read the instructions carefully. Be familiar
with the controls and the proper use of the
equipment.
• Never allow children or people unfamiliar with
these instructions to use the lawnmower. Local
regulations can restrict the age of the operator.
• Never mow while people, especially children,
or pets are nearby.
• Keep in mind that the operator or user is
responsible for accidents or hazards occurring
to other people or their property.
• Do not carry passengers.
• All drivers should seek and obtain professional
and practical instruction. Such instruction
should emphasize:
– the need for care and concentration when
working with ride-on machines;
– control of a ride-on machine sliding on a
slope will not be regained by the application
of the brake. The main reasons for loss of
control are:
◊ insufficient wheel grip;
– If fuel is spilled, do not attempt to start the
engine but move the machine away from
the area of spillage and avoid creating any
source of ignition until fuel vapors have
dissipated.
– Replace all fuel tanks and container caps
securely.
• Replace faulty silencers.
• Before using, always visually inspect to see that
the blades, blade bolts and cutter assembly
are not worn or damaged. Replace worn or
damaged blades and bolts in sets to preserve
balance.
• On multi-bladed machines, take care as rotating
one blade can cause other blades to rotate.
Operation
• Be alert, slow down and use caution when
making turns. Look behind and to the side
before changing directions.
4
• Do not operate the engine in a confined space
where dangerous carbon monoxide fumes can
collect.
• Mow only in daylight or in good artificial light.
• Before attempting to start the engine,
disengage all blade attachment clutches and
shift into neutral.
• Do not use on slopes of more than 15 degrees.
• Remember there is no such thing as a safe
slope. Travel on grass slopes requires particular
care. To guard against overturning:
– do not stop or start suddenly when going
up or downhill;
– use low speeds on slopes and during tight
turns;
– stay alert for humps and hollows and other
hidden hazards;
• Use care when pulling loads.
– Use only approved drawbar hitch points.
– Limit loads to those you can safely control.
– Do not turn sharply. Use care when
reversing.
• Watch out for traffic when crossing or near
roadways.
• Stop the blades rotating before crossing
surfaces other than grass.
• When using any attachments, never direct
discharge of material toward bystanders
nor allow anyone near the machine while in
operation.
• Never operate the machine with damaged
guards or without safety protective devices in
place.
• Do not change the engine governor settings or
overspeed the engine. Operating the engine
at excessive speed can increase the hazard of
personal injury.
• Before leaving the operator’s position:
– disengage the power take-off and lower the
attachments;
– change into neutral and set the parking
brake;
– stop the engine and remove the key.
• Disengage drive to attachments, stop the
engine, and disconnect the spark plug wire(s)
or remove the ignition key
– before clearing blockages or unclogging
chute;
– before checking, cleaning or working on
the lawnmower;
– after striking a foreign object. Inspect
the lawnmower for damage and make
repairs before restarting and operating the
equipment;
– if the machine starts to vibrate abnormally
(check immediately).
• Disengage drive to attachments when
transporting or not in use.
• Stop the engine and disengage drive to
attachment
– before refuelling;
– before removing the grass catcher;
– before making height adjustment unless
adjustment can be made from the operator’s
position.
• Reduce the throttle setting during engine
run-out and, if the engine is provided with
a shut-off valve, turn the fuel off at the
conclusion of mowing.
Maintenance and Storage
• Keep all nuts, bolts and screws tight to be sure
the equipment is in safe working condition.
• Never store the equipment with fuel in the
tank inside a building where fumes can reach
an open flame or spark.
• Allow the engine to cool before storing in any
enclosure.
• To reduce the fire hazard, keep the engine,
silencer, battery compartment and fuel storage
area free of grass, leaves, or excessive grease.
• Check the grass catcher frequently for wear or
deterioration.
• Replace worn or damaged parts for safety.
• If the fuel tank has to be drained, this should
be done outdoors.
• When machine is to be parked, stored or left
unattended, lower the cutting means.
Toro Riding Mower Safety
The following list contains safety information
specific to Toro products or other safety
5
information that you must know that is not
included in the CEN standard.
• Engine exhaust contains carbon monoxide,
which is an odorless, deadly poison that can
kill you. Do not run engine indoors or in an
enclosed area.
• Keep hands, feet, hair and loose clothing away
from attachment discharge area, underside of
mower and any moving parts while engine is
running.
• Do not touch equipment or attachment parts
which may be hot from operation. Allow to
cool before attempting to maintain, adjust, or
service.
• Battery acid is poisonous and can cause burns.
Avoid contact with skin, eyes and clothing.
Protect your face, eyes, and clothing when
working with a battery.
• Battery gases can explode. Keep cigarettes,
sparks, and flames away from battery.
• Use only genuine Toro replacement parts to
ensure that original standards are maintained.
• Use only Toro-approved attachments.
• 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.
• Always avoid sudden starting or stopping on
a slope. If tires lose traction, disengage the
blades and proceed slowly off the slope.
• Follow the manufacturer’s recommendations
for wheel weights or counterweights to
improve stability.
• Use extreme care with grass catchers or other
attachments. These can change the stability of
the machine and cause loss of control.
Sound Pressure
Model 74432
This unit has an equivalent continuous A-weighted
sound pressure level at the operator ear of 86 dBA,
based on measurements of identical machines per
EN 11094 and EN 836.
Model 74433
This unit has an equivalent continuous A-weighted
sound pressure level at the operator ear of 87 dBA,
based on measurements of identical machines per
EN 11094 and EN 836.
Slope Operation
• Do not mow slopes greater than 15 degrees.
• Do not mow near drop-offs, ditches, steep
banks, or water. Wheels dropping over edges
can cause rollovers, which may result in serious
injury, death, or drowning.
• Do not mow slopes when grass is wet. Slippery
conditions reduce traction and could cause
sliding and loss of control.
• Do not make sudden turns or rapid speed
changes.
• Use a walk behind mower and/or a hand
trimmer near drop-offs, ditches, steep banks,
or water.
• Reduce speed and use extreme caution on
slopes.
• Remove or mark obstacles such as rocks, tree
limbs, etc. from mowing area. Tall grass can
hide obstacles.
• Watch for ditches, holes, rocks dips, and rises
that change the operating angle, as rough
terrain could overturn the machine.
• Avoid sudden starts when mowing uphill
because the mower may tip backwards.
Sound Power
Model 74432
This unit has an equivalent continuous A-weighted
sound power level at the operator ear of 100 dBA,
based on measurements of identical machines per
EN 11094.
Model 74433
This unit has an equivalent continuous A-weighted
sound power level at the operator ear of 100 dBA,
based on measurements of identical machines per
EN 11094.
Vibration
Model 74432
This unit has an equivalent continuous A-weighted
hand/arm vibration level of 3.22 m/s2, based on
measurements of identical machines per EN 1033.
6
This unit has an equivalent continuous A-weighted
whole body vibration level of .195 m/s2, based on
measurements of identical machines per EN 1032.
Model 74433
This unit has an equivalent continuous A-weighted
hand/arm vibration level of 4.66 m/s2, based on
measurements of identical machines per EN 1033.
This unit has an equivalent continuous A-weighted
whole body vibration level of .14 m/s2, based on
measurements of identical machines per EN 1032.
7
Slope Chart
8
Safety and Instructional Decals
Safety decals and instructions are easily visible to the operator and are located near any
area of potential danger. Replace any decal that is damaged or lost.
93-7010
1. Thrown object hazard—keep bystanders a safe distance from
the machine.
2. Thrown object hazard, mower—keep the deector in place.
3. Cutting/dismemberment of hand or foot—stay away from
moving parts.
106-2224
1.
2.
3.
4.
5.
6.
Throttle
7.
8.
Choke
Fast
9.
Continuous variable setting10.
11.
Slow
Power take-off (PTO), Blade
control switch on some
models
Headlights
Engine—stop
Engine—run
Engine—start
Ignition
Manufacturer’s Mark
1. Indicates the blade is identied as a part from the original
machine manufacturer.
106-7043
1.
106-2223
Do not tow the machine; pull the lever out to ride on the
machine or push the lever in to push the machine.
106-8717
1.
2.
3.
4.
9
Read the instructions before servicing or performing
maintenance.
Check tire pressure every 25 operating hours.
Grease every 25 operating hours.
Engine
Battery Symbols
Some or all of these symbols are on your battery
106-8742
1. Parking brake
1. Height of cut
108-8769
2.
6.
2. No re, open ame, or
smoking.
7.
3. Caustic liquid/chemical
burn hazard
4. Wear eye protection
8.
5. Read the Operator’s
Manual.
106-8743
1. Collect position
1. Explosion hazard
Recycler® position
108-8759
1. Belt routing
10
9.
10.
Keep bystanders a safe
distance from the battery.
Wear eye protection;
explosive gases can cause
blindness and other injuries
Battery acid can cause
blindness or severe burns.
Flush eyes immediately
with water and get medical
help fast.
Contains lead; do not
discard.
110-6567
1. Warning—read the Operator’s Manual.
2. Warning—read the instructions before servicing or performing maintenance; move the motion control levers to the brake position,
remove the ignition key and disconnect the spark plug wire.
3. Cutting/dismemberment hazard, mower blade; entanglement hazard, belt—do not open or remove safety shields while engine is
running.
4. Loss of traction/control hazard, slopes—loss of traction/control on a slope, disengage the blade control switch (PTO), proceed
off the slope slowly.
5. Crushing/dismemberment hazard of bystanders, reversing; crushing/dismemberment hazard of bystanders—do not carry
passengers, look behind and down when reversing.
6. Tipping hazard—do not mow up and down slopes, only mow across slopes less than 15 degrees, avoid sudden and sharp
turns while on slopes.
7. Thrown object hazard—keep bystanders a safe distance from the machine, pick up debris before operating, keep deector in place.
11
Product Overview
Figure 3
1. Motion control lever
2. Height-of-cut lever
3. Control panel
4.
5.
6.
Collection bag
DFS lever
Operator’s position, seat
7. Mower deck
8. Recycle-on-demand lever
9. Rear drive wheel
10.
11.
12.
Cup holder
Footrest
Front caster wheel
10.
11.
Mower deck
Collection bag presence
sensor
Figure 4
Collection bag removed
1. Motion control lever
2. Height of cut lever
4.
5.
Collection sensors
Rear access panel
7. Engine cover
8. Discharge chute
3. Gas tank cap
6.
Rear drive wheel
9. Rear frame
12
Controls
the same side forward or in reverse. Moving the
control levers outward from the center position
engages the parking brake and allows the operator
to exit the machine (Figure 5).
Become familiar with all of the controls in
Figure 3, Figure 4, Figure 5 and Figure 6 before
you start the engine and operate the machine.
Parking Brake
The parking brake is automatically set when the
motion control levers are in the brake position.
Always position the motion control levers into the
brake position when you stop the machine or leave
it unattended (Figure 5).
Height-of-Cut Lever
The height of cut lever allows the operator to
lower and raise the deck from the seated position.
When the lever is moved up, toward the operator
the deck is raised from the ground and when
moved down, away from the operator it is lowered
to the ground. Only adjust the height of cut while
machine is not moving (Figure 5).
Figure 5
1. Motion control lever,
parking brake position
2. Height-of-cut lever
3. Gas tank cap
4.
Collection bag
5.
DFS lever
Recycle-On-Demand Lever
Use the recycle-on-demand lever to switch from
collection mode to Recycler® mode. Move the
lever forward until it stops to open the deck door
to allow clippings to travel to the collection bags.
Move the lever rearward until it locks in position
to close the deck door and engage the Recycler®
mode (Figure 7).
Figure 6
1. Ignition switch
3.
2. Throttle/Choke
Blade control switch
(power take-off)
Figure 7
Motion Control Levers
1.
The motion control levers are speed sensitive
controls of independent wheel motors. Moving
a lever forward or backward turns the wheel on
13
Recycle-on-demand lever,
collect position
2.
Recycle-on-demand lever,
Recycler® position
Ignition Switch
The ignition switch has three positions, Off, Run
and Start. The key will turn to Start and move
back to Run upon release. Turing the key to
the Off position will stop the engine; however,
always remove the key when leaving the machine
to prevent the engine from accidentally starting
(Figure 6).
Throttle/Choke Control
The throttle and choke is combined into one
control lever. The throttle controls the engine
speed and it has a continuous variable setting from
Slow to Fast. Engage the choke by moving the
lever past the Fast setting until it stops (Figure 6).
Blade Control Switch (Power
Take-Off)
The blade control switch, represented by a power
take-off (PTO) symbol, engages and disengages
power to the mower blades (Figure 6).
DFS (Dump From Seat )Lever
The DFS (Dump From Seat) lever can be operated
from the seated, operating position or while
standing next to the machine. The lever is seated
loosely to allow it to be extended to gain leverage
when in use and swivels freely to allow for minimal
contact with the operating environment (Figure 5).
Collection Sensors
Once the collection bag fills with enough grass
to cover one or both of the sensors and break
the infrared beam a beeping alarm will sound
to alert the operator. The alarm shuts off once
the blade control switch is turned Off. If one or
both sensors are unplugged the mower blades
will not engage. The collection bag should be
emptied immediately. Continued operation of the
collection system with a full bag may result in
plugging of the deck adapter and discharge chute.
14
Operation
Recommended Fuel
Note: Determine the left and right sides of the
machine from the normal operating position.
Use Unleaded Regular Gasoline suitable for
automotive use (87 pump octane minimum).
Leaded regular gasoline may be used if unleaded
regular is not available.
Think Safety First
Important: Never use methanol, fuel
containing methanol, or gasohol containing
more than 10% ethanol because the fuel
system could be damaged. Do not mix oil
with fuel.
Please carefully read all of the safety instructions
and decals in the safety section. Knowing this
information could help you, your family, pets or
bystanders avoid injury.
In certain conditions, fuel is extremely
flammable and highly explosive. A fire or
explosion from fuel can burn you and others
and can damage property.
Mowing on wet grass or steep slopes can
cause sliding and loss of control.
Wheels dropping over edges can cause
rollovers, which may result in serious injury,
death or drowning.
• Fill the fuel tank outdoors, in an open
area, when the engine is cold. Wipe up
any fuel that spills.
To avoid loss of control and possibility of
rollover:
• Never fill the fuel tank inside an enclosed
trailer.
• Do not mow near drop-offs or near water.
• Do not fill the fuel tank completely full.
Add fuel to the fuel tank until the level is
1/4 to 1/2 inch (6 to 13 mm) below the
bottom of the filler neck. This empty
space in the tank allows fuel to expand.
• Do not mow slopes greater than
15 degrees.
• Reduce speed and use extreme caution
on slopes.
• Avoid sudden turns or rapid speed
changes.
• 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.
• Do not operate without entire exhaust
system in place and in proper working
condition.
Figure 8
1. Safe Zone-use the TimeCutter here
2. Use walk behind mower and/or hand trimmer near drop-offs
and water.
3. Water
15
• Cleans the engine while it runs
• Eliminates gum-like varnish buildup in the fuel
system, which causes hard starting
In certain conditions during fueling, static
electricity can be released causing a spark
which can ignite the fuel vapors. A fire or
explosion from fuel can burn you and others
and can damage property.
Important: Do not use fuel additives
containing methanol or ethanol.
Add the correct amount of gas
stabilizer/conditioner to the gas.
• Always place fuel containers on the
ground away from your vehicle before
filling.
Note: A fuel stabilizer/conditioner is most
effective when mixed with fresh fuel. To minimize
the chance of varnish deposits in the fuel system,
use fuel stabilizer at all times.
• Do not fill 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.
Filling the Fuel Tank
1. Shut the engine off and set the parking brake.
• When practical, remove gas-powered
equipment from the truck or trailer and
refuel the equipment with its wheels on
the ground.
2. Clean around the fuel tank cap and remove
the cap. Add unleaded regular gasoline to the
fuel tank until the level is 1/4 to 1/2 inch (6 to
13 mm) below the bottom of the filler neck.
This space in the tank allows fuel to expand.
Do not fill the fuel tank completely full.
• 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.
3. Install the fuel tank cap securely. Wipe up any
fuel that may have spilled.
• If a fuel dispenser nozzle must be used,
keep the nozzle in contact with the rim
of the fuel tank or container opening at
all times until fueling is complete.
Checking the Engine Oil
Level
Before you start the engine and use the machine,
check the oil level in the engine crankcase; refer to
Checking the Oil Level in Engine Maintenance,
page 29.
Fuel is harmful or fatal if swallowed.
Long-term exposure to vapors can cause
serious injury and illness.
Starting and Stopping the
Engine
• Avoid prolonged breathing of vapors.
• Keep face away from nozzle and gas tank
or conditioner opening.
Starting the Engine
• Keep gas away from eyes and skin.
1. Sit down on the seat and move the motion
controls to the brake position.
Using Stabilizer/Conditioner
2. Disengage the blades by moving the blade
control switch to Off (Figure 9).
Use a fuel stabilizer/conditioner in the machine to
provide the following benefits:
• Keeps fuel fresh during storage of 90 days or
less. For longer storage it is recommended that
the fuel tank be drained.
16
Figure 11
1.
2.
Figure 9
1. Blade control switch—On
2.
Off
Run
3.
4.
Start
Ignition
Stopping the Engine
Blade control switch—Off
1. Move the throttle lever to Fast (Figure 10).
2. Disengage the blades by moving the blade
control switch to Off (Figure 9).
3. Move the throttle lever to Choke before
starting a cold engine (Figure 10).
3. Turn the ignition key to Off (Figure 11).
Note: A warm or hot engine may not require
choking.
4. Pull the wire off of the spark plug(s) to prevent
the possibility of someone accidentally starting
the machine before transporting or storing the
machine.
4. Turn the ignition key to Start to energize the
starter. When the engine starts, release the key.
Important: Do not engage the starter
for more than 10 seconds at a time. If the
engine fails to start, allow a 60 second
cool-down period between attempts.
Failure to follow these instructions can
burn out the starter motor.
5. Close the fuel shut-off valve under the front
of the fuel tank before transporting or storing
the machine.
Important: Make sure the fuel shut-off
valve is closed before transporting or
storing the machine, as fuel leakage may
occur.
5. After the engine starts, move the throttle
lever to Fast (Figure 10). If the engine stalls
or hesitates, move the throttle lever back to
Choke for a few seconds. Then move the
throttle lever to the desired setting. Repeat this
as required.
Driving Forward or
Backward
The throttle control regulates the engine speed as
measured in rpm (revolutions per minute). Place
the throttle control in the Fast position for best
performance. Always operate in the full throttle
position.
Figure 10
1. Engine
2. Choke
3.
4.
The machine can spin very rapidly. The
operator may lose control of the machine
and cause personal injury or damage to the
machine.
Fast
Slow
• Use caution when making turns.
• Slow the machine down before making
sharp turns.
17
Forward
Operating the Blades
1. Move the levers to the center, unlocked
position.
The blade control switch, represented by a power
take-off (PTO) symbol, engages and disengages
power to the mower blades. This switch controls
power to any attachments that draw power from
the engine, including the mower deck and cutting
blades.
2. To go forward, slowly push the motion control
levers forward (Figure 12).
Engaging the Blades
1. Release pressure on the traction control levers
and place the machine in neutral.
2. Move the throttle to the Fast position.
3. Pull out on the blade control switch to engage
blades (Figure 13).
Figure 12
1. Center unlock position
2. Forward
3.
4.
Backward
Brake position
To go straight, apply equal pressure to both
motion control levers (Figure 12).
To turn, release pressure on the motion control
lever toward the direction you want to turn
(Figure 12).
Figure 13
1. Blade control switch-On
2.
Blade control switch-Off
The farther you move the traction control
levers in either direction, the faster the machine
will move in that direction.
Disengaging the Blades
To stop, pull the motion control levers to
neutral.
Push the blade control switch to Off to disengage
the blades (Figure 13).
Backward
Stopping the Machine
1. Move the levers to the center, unlocked
position.
To stop the machine, move the traction control
levers to neutral and separate to the brake position,
disengage the blade control switch, ensure the
throttle is in the fast position, and turn the ignition
key to off. Remember to remove the key from the
ignition switch.
2. To go backward, slowly pull the motion control
levers rearward (Figure 12).
To go straight, apply equal pressure to both
motion control levers (Figure 12).
To turn, release the pressure on the motion
control lever toward the direction you want to
turn (Figure 12).
To stop, push the motion control levers to
neutral.
18
control lever to the center, unlocked position.
Try starting the engine; the engine should not
crank. Repeat with the other motion control
lever.
Children or bystanders may be injured if
they move or attempt to operate the mower
while it is unattended.
3. While sitting on the seat, move the blade
control switch to Off, and lock the motion
control levers in neutral. Start the engine.
While the engine is running, move the motion
control levers to the center, unlocked position,
engage the blade control switch, and rise
slightly from the seat; the engine should stop.
Always remove the ignition key and move the
motion control levers to the brake position
when leaving the machine unattended, even
if just for a few minutes.
The Safety Interlock System
4. Remove the collection bag. While sitting on
the seat, start the engine and move the blade
control switch to On. The blades should not
engage.
If safety interlock switches are disconnected
or damaged the machine could operate
unexpectedly causing personal injury.
Adjusting the Height of Cut
• Do not tamper with the interlock
switches.
The height of cut is adjusted from 1-1/2 to
4-1/2 inch (38 to 114 mm) in 1/2 inch (13 mm)
increments by moving the height-of-cut lever in
different locations.
• Check the operation of the interlock
switches daily and replace any damaged
switches before operating the machine.
1. Raise the height-of-cut lever to the transport
position (also the 4-1/2 inch (114 mm) cutting
height position (Figure 14).
Understanding the Safety Interlock
System
2. To adjust, pull up on the height-of-cut lever
and move it to the desired position (Figure 14).
The safety interlock system is designed to prevent
the engine from starting unless:
• The blades are disengaged.
• The motion control levers are in the brake
position.
The safety interlock system also is designed to stop
the engine when the control levers are out of the
brake position and you rise from the seat when
the blades are engaged.
Testing the Safety Interlock System
Test the safety interlock system before you use
the machine each time. If the safety system
does not operate as described below, have an
Authorized Service Dealer repair the safety system
immediately.
1. While sitting on the seat, with the control
levers in brake position, and move the blade
control switch to On. Try starting the engine;
the engine should not crank.
2. While sitting on the seat, move the blade
control switch to Off. Move either motion
Figure 14
1.
19
Height-of-cut lever
2.
Height-of-cut positions
Changing Operation Modes
Operation in the Collection
Mode
The recycle-on-demand lever allows the operator
to alternate functions between Recycler® and
collection modes from the seated, operating
position. Use the recycle-on-demand lever to
change modes.
As the bagger fills, extra weight is added to
the back of the machine. If you stop and
start suddenly on hills, you may lose steering
control or the machine may tip.
1. Park the machine on a level surface, disengage
the blade control switch and move the motion
control levers to the brake position.
• Do not start or stop suddenly when going
uphill or downhill. Avoid uphill starts.
2. Move the throttle to Slow.
• If you do stop the machine when going
uphill, disengage the blade control
switch. Then back down the hill using a
slow speed.
3. Move the recycle-on-demand lever (Figure 15)
to the desired position:
• Do not change speeds or stop on slopes.
The collection mode uses air flow created by the
cutting blades to direct clippings up, through an
internal chute and deposit them in the collection
bag. Shorter, dry clippings require less force to be
moved up the chute and into the collection bag.
Environmental factors can affect the quantity of
clippings moved into the collection bag and rate
of collection. Cutting tall grass at a low height
of cut will remove air flow needed to propel the
clippings into the collection bag. Longer, wet or
damp clippings require much greater force to be
deposited in the collection bag.
Figure 15
1. Recycle-on-demand lever,
collect position
2.
Recycle-on-demand lever,
Recycler® position
Always try to cut grass when it is dry because your
lawn will have a neat appearance. If you must cut
wet grass, use the Recycler® mode. Several hours
later, when the clippings are dry, use the collection
mode to gather up the grass clippings.
A. Raise the lever to the upright position to
open the deck door and allow clippings to
be collected.
B. Lower the lever to Recycler® position
to close the deck door and mulch the
clippings.
For the best performance of the direct collection
mode:
• Set the throttle to Fast.
4. Move the throttle to the Fast position and the
motion control levers to the operating position.
• Mow regularly.
• Use an higher height of cut for taller grass.
• Avoid mowing wet or damp grass.
• Travel at slower speeds when mowing taller
grass.
20
Emptying the Collection System
Collection Bag
Once the collection bag fills with enough grass
to cover one or both of the sensors and break
the infrared beam a beeping alarm will sound to
alert the operator. The alarm shuts off once the
blade control switch is turned Off. If one or both
sensors are unplugged the mower blades will not
engage.
The collection bag is retained in the engine cover
by seating the lever side pin into a holed bracket
in the right hand side of the engine cover. To
remove, raise the bag up and first lift the pin in the
open notch up and away from the cover. Then
slide the lever side pin out the bracket until the
bag is clear of the machine. When installing, seat
this side first and then place the opposing pin in
the open notch in the engine cover. Allow the bag
to swing down, into place.
The machine is equipped with an alarm that
sounds to notify the operator the collection bag
is full.
1. Park the machine on a level surface, disengage
the blade control switch and move the motion
control levers to the brake position.
2. Move the throttle to Slow.
3. Raise the collection bag by extending the DFS
lever and then pulling down (Figure 16).
Figure 17
1.
2.
3.
Figure 16
1. Lowering DFS lever
2.
Raised collection bag,
emptying clippings
4. Lower the collection bag and release the DFS
lever.
In the event that the collection bag alarm goes off
and the bag is less than full, the sensors should be
cleared of any clippings or debris that be blocking
the beam. Raise the collection bag and wipe off
the faces of the sensors with a soft cloth.
Important: You can wash the machine with
mild detergent and water. Do not pressure
wash the machine. Avoid excessive use of
water, especially near the control panel,
engine, hydraulic pumps, and motors.
21
Collection bag
Engine hood
Holed bracket
4.
5.
Pin, collection bag
Notched bracket
Removing the Collection Chute
As you are bagging, a small amount of grass
clippings normally blow out the front of the
mower. An excessive amount of clippings blowing
out and no audible alarm signalling a full bag may
indicate a plugged chute.
The collection chute can be removed to be cleaned
and safely cleared of any obstructions. Use the
following procedure to remove it:
1. Make sure the collection bag is empty.
2. Park the machine on a level surface and
disengage the blade control switch.
3. Move the motion control levers to the brake
position, stop the engine, remove the key, and
wait for all moving parts to stop before leaving
the operating position. Raise the operator’s
seat.
4. Move to the rear of the machine and remove
the collection bag.
5. Grasp the discharge chute and remove as
follows.
Important: Use caution and do not use
excessive force when removing/installing
the chute. “Forcing” the chute can damage
it or other internal components.
A. Pull the chute out from the machine
approximately 6-8 inches (15-20 cm).
B. Rotate the chute a quarter turn downward
and proceed to pull chute out further to
expose the first bend.
C. With the bend exposed rotate the chute a
quarter turn counter clockwise.
D. Pull the chute until the key is visible. Line
the key in the chute with the keyway.
E. Remove the chute.
Figure 18
22
6. Return to the machine. Inspect the internal
engine compartment and clear any clippings or
debris dislodged during chute removal.
Debris built up in the engine
compartment, if not removed, could be
ignited by a hot engine. A fire in the
engine compartment could can burn you
and others and can damage property.
• Before using and while the engine is
cool, check for debris in the engine
compartment.
• Keep the machine free of grass,
leaves, or other debris build-up.
• Clean up oil or fuel spillage and fuel
soaked debris.
• Allow the machine to cool before
storing.
Clearing the Collection Chute
Note: To avoid plugging the collection system,
mow the grass at a high height of cut, then lower
the mower to your normal cutting height and
repeat the collection process.
Remove the collection chute and tap it on the
ground to remove any plugged clippings or debris.
At this time, visually inspect the chute to verify it
is clear and for any damage. If necessary, manually
remove any obstructions from the chute.
Installing the Collection Chute
1. Line the key in the chute with the keyway in
the frame
A. Gently move the chute into the machine
until the first bend.
B. Rotate the chute a quarter turn downward
and continue installing the chute until the
second bend.
C. Rotate the chute a quarter turn counter
clockwise and continue to install the chute.
D. Look over the engine hood, and into the
internal machine. Align the key in the chute
with the peg on the deck adapter.
E. Slide the chute over the deck adapter until
the chute seats in the machine frame.
Figure 19
2. Lower the seat and resume operation.
23
Operation in the Recycler®
Mode
Air is required to cut and recut grass clippings in
the mower housing, so do not set the height-of-cut
too low or completely surround the housing by
uncut grass. Always try to have one side of the
mower deck free from uncut grass; allowing air
to be drawn into the mower deck. When making
an initial cut through the center of an uncut area,
operate the machine slower and back up if the
mower starts to clog.
Figure 20
To ensure optimum performance, clean the
underside of the mower housing after each use.
If residue is allowed to build up in the mower
housing, cutting performance can decrease.
1. Adjustment knobs
Adjusting the Motion
Control Levers
For the best performance of the Recycler® mode:
• Mow regularly.
• Keep air flow high by overlapping cutting paths
The motion control levers can be adjusted higher
or lower for maximum operator comfort.
• Use an higher height of cut for taller grass.
1. Remove the 2 bolts holding the control lever
to the control arm shaft (Figure 21).
• Use sharp blades.
• Travel at slower speeds when mowing taller
grass.
2. Move the control lever to the next set of holes.
Secure the lever with the 2 bolts (Figure 21).
Positioning the Seat
The seat can move forward and backward.
Position the seat where you have the best control
of the machine and are most comfortable.
1. Raise the seat and loosen the adjustment knobs
enough to move the seat (Figure 20).
Important: Make sure that the spacers
stay in place when loosening the knobs
to move the seat. Loss of the spacers can
result in damage to the seat.
2. Move the seat to the desired position and
tighten the knobs.
Figure 21
1. Control lever
2. Bolt
3.
Control arm shaft
3. Repeat the adjustment for the opposite control
lever.
24
Pushing the Machine by
Hand
Adjusting the Footrest
The footrest can be adjusted forward or backward
for maximum operator comfort.
Important: Always push the machine
by hand. Never tow the machine because
damage may occur.
Lift up the footrest and place the rods in the same
hole positions (Figure 23).
To Push the Machine
1. Park the machine on a level surface and
disengage the blade control switch.
2. Move the motion control levers outward to
engage the parking brake, stop the engine,
remove the key, and wait for all moving parts
to stop before leaving the operating position.
3. Move the two bypass levers to the inside and
push them in until the washer on the rod
passes through the slot (Figure 22).
4. Push the levers outward to lock them in place
Figure 22.
5. Move the motion control levers inward to
disengage the parking brake.
Figure 23
1.
2.
Footrest
Rod
3.
Hole positions
Operating Tips
The machine is now able to be pushed by hand.
Fast Throttle Setting
For best mowing and maximum air circulation,
operate the engine at the Fast position. Air is
required to thoroughly cut grass clippings, so
do not set the height-of-cut so low as to totally
surround the mower by uncut grass. Always try to
have one side of the mower free from uncut grass,
which allows air to be drawn into the mower.
Cutting a Lawn for the First Time
Cut grass slightly longer than normal to ensure
that the cutting height of the mower does not
scalp any uneven ground. However, the cutting
height used in the past is generally the best one to
use. When cutting grass longer than six inches tall,
you may want to cut the lawn twice to ensure an
acceptable quality of cut.
Figure 22
1. Bypass lever, lever position 2.
for pushing the machine
Lever position for operating
the machine
To Operate the Machine
Cut 1/3 of the Grass Blade
Move each bypass levers to the inside and pull
them rearward, completely through the slot
(Figure 22). Push the levers outward to lock them
in place
It is best to cut only about 1/3 of the grass blade.
Cutting more than that is not recommended unless
grass is sparse, or it is late fall when grass grows
more slowly.
Note: The machine will not drive unless the
bypass levers are disengaged.
25
Mowing Direction
tearing or shredding the grass blades. Tearing and
shredding turns grass brown at the edges, which
slows growth and increases the chance of disease.
Check the cutter blades daily for sharpness, and
for any wear or damage. File down any nicks
and sharpen the blades as necessary. If a blade is
damaged or worn, replace it immediately with a
genuine Toro replacement blade.
Alternate mowing direction to keep the grass
standing straight. This also helps disperse clippings
which enhances decomposition and fertilization.
Mow at Correct Intervals
Normally, mow every four days. But remember,
grass grows at different rates at different times.
So to maintain the same cutting height, which is a
good practice, mow more often in early spring. As
the grass growth rate slows in mid summer, mow
less frequently. If you cannot mow for an extended
period, first mow at a high cutting height; then
mow again two days later at a lower height setting.
Safe Towing Practices
Tow only with a machine that has a hitch designed
for towing. Do not attach towed equipment
except at the hitch point. This product has a
limited towing capacity for small attachments,
such as leaf sweepers, rollers up to 500 lbs (227
kg) or carts up to 5 cubic feet (0.14 m3). These
types of attachments should be limited to flat
ground. Never allow children or others in or on
towed equipment. On slopes, the weight of towed
equipment may cause a loss of traction and control.
Travel slowly and allow extra distance to stop.
Cutting Speed
To improve cut quality, use a slower ground speed.
Avoid Cutting Too Low
If the cutting width of the mower is wider than the
mower you previously used, raise the cutting height
to ensure that uneven turf is not cut too short.
Long Grass
If the grass is ever allowed to grow slightly longer
than normal, or if it contains a high degree of
moisture, raise the cutting height higher than usual
and cut the grass at this setting. Then cut the grass
again using the lower, normal setting.
When Stopping
If the machine’s forward motion must be stopped
while mowing, a clump of grass clippings may
drop onto your lawn. To avoid this, move onto a
previously cut area with the blades engaged.
Keep the Underside of the Mower
Clean
Clean clippings and dirt from the underside of the
mower after each use. If grass and dirt build up
inside the mower, cutting quality will eventually
become unsatisfactory.
Blade Maintenance
Maintain a sharp blade throughout the cutting
season because a sharp blade cuts cleanly without
26
Maintenance
Note: Determine the left and right sides of the machine from the normal operating position.
Recommended Maintenance Schedule(s)
Maintenance Service
Interval
Maintenance Procedure
After the rst 5 operating
hours
• Change the engine oil.
Before each use or daily
•
•
•
•
•
Test the safety interlock system.
Check the engine oil level.
Check the cutting blades.
Wipe clean the collection sensors.
Clean the mower housing.
Every 25 hours
• Grease all lubrication points.
• Clean the foam air lter element (more often in dirty or dusty conditions).
• Change the engine oil (when operating under heavy load or in high
ambient temperatures).
• Check tire pressure.
• Check the belts for wear/cracks.
Every 50 hours
• Change the engine oil.
• Check the battery electrolyte level.
Every 100 hours
• Replace the paper air lter element (more often in dirty or dusty
conditions).
• Change the oil lter (model 74433 only).
• Replace spark plug.
• Replace fuel lter.
Before storage
•
•
•
•
Drain the fuel tank.
Charge the battery and disconnect battery cables.
Perform all maintenance procedures listed above before storage.
Paint any chipped surfaces.
Important: Refer to your engine operator’s manual for additional maintenance procedures.
If you leave the key in the ignition switch, someone could accidently start the engine and
seriously injure you or other bystanders.
Remove the key from the ignition and disconnect the wire from the spark plug before you do
any maintenance. Set the wire aside so that it does not accidentally contact the spark plug.
27
Premaintenance
Procedures
front retaining clasp and lift the engine hood
off the frame (Figure 25).
Accessing the Machine
Some internal components can be accessed
by simply raising the seat. Use the following
procedures to access to the internal components
as needed when performing the maintenance
procedures described in this manual.
Removing the Engine Hood
Remove the engine hood to gain access to the
engine compartment. To remove the engine hood
the collection bag must be emptied and removed
first.
1. Empty the collection bag as desired.
2. Park the machine on a level surface and
disengage the blade control switch.
3. Move the motion control levers to the brake
position, stop the engine, remove the key, and
wait for all moving parts to stop before leaving
the operating position.
4. Grasp the collection bag at the front and rear
using the plastic hand holds. Pivot it up and
forward and then lift it out of the engine hood.
Refer to Operation, page 15 for additional
information.
Figure 25
1. Engine hood
2.
Knob
Rear Access Panel
The rear access panel is located on the back
of the machine frame and can be seen when
the collection bag is off. Loosen the fasteners
to remove the panel and access the engine
components (Figure 26). Always make sure the
panel is replaced and secured with the fasteners
before operating the machine.
Note: The rear access panel can be opened
when the collection bag is off the machine.
5. Remove the fasteners retaining the engine
hood to the machine frame (Figure 24). Retain
all parts.
Figure 26
1. Rear access panel
2. Fastener
Figure 24
1. Engine hood
2.
3.
Frame
Installing the Engine Hood
Fasteners
1. To install the hood, align the slot in the hood
with the frame and carefully lower it onto the
frame (Figure 27). Make sure the frame seated
correctly in the engine hood groove before
6. Grasp the engine hood front and rear. Press
down on the front of the hood to release the
28
forcing the hood down. Push down gently to
seat the retaining pin.
Figure 28
Figure 27
1. Engine hood
2. Frame
3.
1.
Front caster tire
Frame mating with slot in
the hood.
2. Install the collection bag; refer to Operation,
page 15.
Figure 29
Lubrication
4. Connect a grease gun to each fitting (Figure 28
and Figure 29). Pump grease into the fittings
until grease begins to ooze out of the bearings.
5. Wipe up any excess grease.
Greasing the Bearings
Grease the front caster pivots and wheels
(Figure 28).
1. Park the machine on a level surface and
disengage the blade control switch.
Engine Maintenance
2. Move the motion control levers to the brake
position, stop the engine, remove the key, and
wait for all moving parts to stop before leaving
the operating position.
Servicing the Air Cleaner
Foam Element: Clean after every 25 operating
hours, or yearly, whichever occurs first.
3. Clean the grease fittings (Figure 28 and
Figure 29) with a rag. Make sure to scrape any
paint off of the front of the fitting(s).
Paper Element: Replace after every 100 operating
hours or yearly, whichever occurs first.
Note: Service the air cleaner more frequently
(every few hours) if operating conditions are
extremely dusty or sandy.
Removing the Foam and Paper
Elements
1. Park the machine on a level surface and
disengage the blade control switch.
2. Move the motion control levers to the brake
position, stop the engine, remove the key, and
29
Cleaning the Foam Element
wait for all moving parts to stop before leaving
the operating position.
1. Wash the foam element in liquid soap and
warm water. When the element is clean, rinse
it thoroughly.
3. Remove the engine hood.
4. Clean around the air cleaner to prevent dirt
from getting into the engine and causing
damage. Pull up on the air cleaner cover handle
and rotate it toward the engine (Figure 30).
Remove the air cleaner cover.
2. Dry the element by squeezing it in a clean
cloth. Do not oil the element.
Important: Replace the foam element
if it is torn or worn.
Important: Do not clean or oil the paper
element. Replace the paper element if it is
damaged or cannot be cleaned thoroughly.
Installing the Foam and Paper
Elements
Important: To prevent engine damage,
always operate the engine with the complete
foam and paper air cleaner assembly installed.
1. Place the foam element and paper element into
the blower housing.
Note: Make sure that the rubber seal is flat
against the air cleaner base.
Figure 30
1. Air cleaner cover
2.
Air cleaner cover handle
2. Align the tabs on the air cleaner cover with the
slots of the blower housing (Figure 31). Hook
the handle onto the cover and press down on
the handle to lock the cover in place.
5. Carefully slide the paper element and foam
element from the blower housing (Figure 31).
Servicing the Engine Oil
Check the oil level daily or after every 8 hours.
Change the oil after the first 5 operating hours and
every 50 operating hours thereafter.
Oil Type: Detergent oil (API service SG, SH, SJ,
SL or higher)
Crankcase Capacity:
• 48 oz./1-1/2 qt. (1400 cc/1.4 l) when the filter
is not changed;
• 56 oz./1-3/4 qt. (1700 cc/1.7 l) when the filter
is changed (Model 74433 only)
Viscosity: See the table below.
Figure 31
1. Paper element
2. Foam element
3. Air cleaner cover
4.
5.
6.
Tab
Slot
Blower housing
30
Figure 34
1.
Figure 32
Oil dipstick
2.
Metal end
4. Screw the oil dipstick fully onto the fill hole.
Unscrew the dipstick, pull it out, and look at
the end. If the oil level is low, slowly pour only
enough oil into the fill hole to raise the level to,
but not over, the Full mark on the dipstick.
Checking the Oil Level
1. Park the machine on a level surface, disengage
the blade control switch, stop the engine, and
remove the key.
Important: Do not overfill the crankcase
with oil because the engine may be
damaged.
2. Clean around the oil dipstick (Figure 33) so
that dirt cannot fall into the fill hole and
damage the engine.
Changing the Oil
1. Start the engine and let it run until warm. This
warms the oil so it drains better.
2. Park the machine so that the drain side is
slightly lower than the opposite side to assure
the oil drains completely.
3. Disengage the blade control switch and set the
parking brake.
4. Stop the engine, remove the key, and wait for
all moving parts to stop before leaving the
operating position.
Figure 33
1. Oil dipstick
2. Filler tube
3.
5. Remove the engine hood to access the oil drain
valve.
Oil drain valve
6. Place a pan below the drain hose. Open oil
drain valve to allow oil to drain (Figure 35).
3. Unscrew the oil dipstick and wipe the end
clean (Figure 34).
31
3. Apply a thin coat of clean oil to the rubber
gasket on the replacement filter (Figure 36).
Figure 36
1. Oil lter
2. Gasket
3.
4.
Adapter
4. Install the replacement oil filter to the filter
adapter. Turn the oil filter clockwise until the
rubber gasket contacts the filter adapter; then
tighten the filter an additional 1/2 to 3/4 turn
(Figure 36).
Figure 35
1. Oil drain valve
2. Oil drain tube
3.
Oil pan
Rear, ldrive wheel
5. Fill the crankcase with the proper type of new
oil; refer to Changing and Draining the Oil in
Engine Maintenance, page 29.
7. When oil has drained completely, close the
drain valve.
8. Remove the drain hose (Figure 35).
Servicing the Spark Plug
Note: Dispose of the used oil at a recycling
center.
9. Change the oil filter, if necessary (Figure 36).
10. Clean around the oil dipstick and unscrew the
cap (Figure 33).
11. Slowly pour approximately 80% of the
specified oil into the filler tube (Figure 33).
12. Check the oil level; refer to Checking the Oil
Level in Engine Maintenance, page 29.
13. Slowly add additional oil to bring it to the full
mark.
Replace the spark plug after every 100 operating
hours. Make sure that the air gap between the
center and side electrodes is correct before
installing the spark plug. Use a spark plug wrench
for removing and installing the spark plug(s) and a
gapping tool/feeler gauge to check and adjust the
air gap. Install a new spark plug if necessary.
Type: Champion RC12YC (or equivalent)
Air Gap: 0.030 inch (0.76 mm)
Removing the Spark Plug
Changing the Oil Filter (For Model
74433 only)
1. Disengage the blade control switch, set the
parking brake, stop the engine, and remove
the key.
Replace the oil filter every 100 hours or every
other oil change.
2. Remove the collection bag and open the access
panel (Figure 26).
Note: Change the oil filter more often in dusty,
dirty conditions.
1. Drain the oil from the engine; refer to Changing
and Draining the Oil in Engine Maintenance,
page 29.
2. Remove the old filter and wipe the filter
adapter gasket surface (Figure 36).
3. Pull the wire off of the spark plug (Figure 37).
Clean around the spark plug to prevent dirt
from falling into the engine and potentially
causing damage.
32
2. Tighten the spark plug to 30 ft-lb (41 N⋅m).
3. Push the wire onto the spark plug (Figure 37).
4. Close the access panel and tighten the fasteners
to secure it shut.
Important: Always make sure the panel
is replaced and secured with the fasteners
before operating the machine. Operating
the machine with the access panel open
would allow clippings and other debris
entering the engine compartment possibly
damaging the machine.
Figure 37
4. Remove the spark plug and metal washer.
Fuel System
Maintenance
Checking the Spark Plug
Draining the Fuel Tank
1. Spark plug wire
2.
Mufer
1. Look at the center of the spark plug (Figure 38).
If you see light brown or gray on the insulator,
the engine is operating properly. A black
coating on the insulator usually means the air
cleaner is dirty.
In certain conditions, fuel is extremely
flammable and highly explosive. A fire or
explosion from fuel can burn you and others
and can damage property.
Important: Never clean the spark plug.
Always replace the spark plug when it has
a black coating, worn electrodes, an oily
film, or cracks.
• Drain fuel from the fuel tank when the
engine is cold. Do this outdoors in an
open area. Wipe up any fuel that spills.
2. Check the gap between the center and side
electrodes (Figure 38). Bend the side electrode
(Figure 38) if the gap is not correct.
• Never smoke when draining fuel, and
stay away from an open flame or where a
spark may ignite the fuel fumes.
1. Park the machine on a level surface and
disengage the blade control switch.
2. Move the motion control levers to the brake
position, stop the engine, remove the key, and
wait for all moving parts to stop before leaving
the operating position.
3. Close the fuel shut-off valve located under the
front of the fuel tank (Figure 39).
Figure 38
1. Center electrode insulator
2. Side electrode
3.
Air gap (not to scale)
Installing the Spark Plug
1. Install the spark plug. Make sure that the air
gap is set correctly.
33
Replacing the Fuel Filter
Replace the fuel filter after every 100 operating
hours or yearly, whichever occurs first.
Never install a dirty filter if it is removed from the
fuel line.
1. Park the machine on a level surface and
disengage the blade control switch.
2. Move the motion control levers to the brake
position, stop the engine, remove the key, and
wait for all moving parts to stop before leaving
the operating position.
3. Close the fuel shut-off valve located under the
front of the fuel tank.
Figure 39
1. Fuel tank cap
2. Fuel tank, inside fender
3.
4.
Fender
Fuel shut-off valve.
4. Squeeze the ends of the hose clamps together
and slide them away from the filter (Figure 40).
5. Remove the filter from the fuel lines.
4. Remove the engine hood.
6. Install a new filter and move the hose clamps
close to the filter (Figure 40).
5. Loosen the hose clamp at the fuel filter and
slide it up the fuel line away from the fuel filter
(Figure 40).
7. Open the fuel shut-off valve.
Electrical System
Maintenance
Servicing the Battery
Check the electrolyte level in the battery every
25 hours. Always keep the battery clean and fully
charged. Use a paper towel to clean the battery
case. If the battery terminals are corroded, clean
them with a solution of four parts water and one
part baking soda. Apply a light coating of grease
to the battery terminals to prevent corrosion.
Figure 40
1. Hose clamp
2. Fuel line
3.
Filter
Voltage: 12 V
6. Pull the fuel line off of the fuel filter (Figure 40).
7. Open the fuel shut-off valve. Allow fuel to
drain into a gas can or drain pan (Figure 39).
Note: Now is the best time to install a new
fuel filter because the fuel tank is empty.
8. Install the fuel line onto the fuel filter. Slide
the hose clamp close to the fuel filter to secure
the fuel line (Figure 40).
34
Removing the Battery
Battery terminals or metal tools could short
against metal machine components causing
sparks. Sparks can cause the battery gasses
to explode, resulting in personal injury.
• When removing or installing the battery,
do not allow the battery terminals to
touch any metal parts of the machine.
• Do not allow metal tools to short between
the battery terminals and metal parts of
the machine.
Figure 41
1.
2.
3.
Battery
Terminal boot
Positive battery cable
4.
5.
6.
Negative battery cable
Battery hold-down
Bolt, nut, and washer
1. Park the machine on a level surface and
disengage the blade control switch.
Checking the Battery Electrolyte Level
2. Move the motion control levers to the brake
position, stop the engine, remove the key, and
wait for all moving parts to stop before leaving
the operating position.
Battery electrolyte contains sulfuric acid
which is a deadly poison and causes severe
burns.
3. Tip the seat forward to see the battery.
4. Disconnect the negative (black) ground cable
from the battery post (Figure 41).
• Do not drink electrolyte and avoid
contact with skin, eyes or clothing. Wear
safety glasses to shield your eyes and
rubber gloves to protect your hands.
Incorrect battery cable routing could
damage the machine and cables causing
sparks. Sparks can cause the battery
gasses to explode, resulting in personal
injury.
1. Tip the seat forward to see the battery.
• Always disconnect the negative
(black) battery cable before
disconnecting the positive (red)
cable.
2. Look at the side of the battery. The electrolyte
must be up to the Upper line (Figure 42).
Do not allow the electrolyte to fall below the
Lower line (Figure 42).
• Fill the battery where clean water is
always available for flushing the skin.
• Always connect the positive (red)
battery cable before connecting the
negative (black) cable.
5. Slide the rubber cover up the positive (red)
cable. Disconnect the positive (red) cable from
the battery post (Figure 41).
Figure 42
6. Remove the battery hold-down (Figure 41) and
lift the battery from the battery tray.
1.
2.
Vent caps
Upper line
3.
Lower line
3. If the electrolyte is low, add the required amount
of distilled water; refer to Adding Water to
35
the Battery in Electrical System Maintenance,
page 34.
disconnect the charger leads from the battery
posts (Figure 43).
Adding Water to the Battery
The best time to add distilled water to the battery is
just before you operate the machine. This lets the
water mix thoroughly with the electrolyte solution.
1. Remove the battery from the machine;
refer to Removing the Battery in
Electrical System Maintenance, page 34.
Important: Never fill the battery with
distilled water while the battery is installed
in the machine. Electrolyte could be
spilled on other parts and cause corrosion.
2. Clean the top of the battery with a paper towel.
3. Remove the vent caps from the battery
(Figure 42).
4. Slowly pour distilled water into each battery
cell until the electrolyte level is up to the Upper
line (Figure 42) on the battery case.
Figure 43
1. Positive battery post
2. Negative battery post
3.
4.
Red (+) charger lead
Black (-) charger lead
5. Install the battery in the machine and connect
the battery cables; refer to Installing the
Battery.
Note: Do not run the machine with the
battery disconnected, electrical damage may
occur.
Important: Do not overfill the battery
because electrolyte (sulfuric acid) can
cause severe corrosion and damage to the
chassis.
5. Wait five to ten minutes after filling the battery
cells. Add distilled water, if necessary, until
the electrolyte level is up to the Upper line
(Figure 42) on the battery case.
6. Reinstall the battery vent caps.
Installing the Battery
1. Position the battery in the tray with the
terminal posts away from the control panel
(Figure 41).
2. Install the positive (red) battery cable to the
positive (+) battery terminal.
3. Install the negative battery cable to the negative
(-) battery terminal.
4. Secure the cables with 2 bolts (1/4 x 3/4 inch),
washers (1/4 inch), and nuts (1/4 inch)
(Figure 41).
5. Slide the red terminal boot onto the positive
(red) battery post.
6. Secure the battery with the hold-down
(Figure 41).
Charging the Battery
Important: Always keep the battery
fully charged (1.260 specific gravity). This
is especially important to prevent battery
damage when the temperature is below 32°F
(0°C).
1. Remove the battery from the chassis; refer to
Removing the Battery.
2. Check the electrolyte level; refer to Checking
the Electrolyte Level.
3. Make sure that the vent caps are installed in
the battery. Charge the battery for 1 hour at 25
to 30 amps or 6 hours at 4-6 amps. Do not
overcharge the battery.
4. When the battery is fully charged, unplug
the charger from the electrical outlet, then
Servicing the Fuses
The electrical system is protected by fuses. It
requires no maintenance; however, if a fuse blows,
check the component/circuit for a malfunction
or short.
Fuse:
• Main F1-30 amp, blade-type
• Charge Circuit F2-25 amp, blade-type
36
1. Raise the seat to gain access to the fuse holder
(Figure 44).
2. To replace a fuse, pull out on the fuse to
remove it (Figure 44).
Figure 45
1.
Valve stem
Mower Maintenance
Servicing the Cutting Blades
Maintain sharp blades throughout the cutting
season because sharp blades cut cleanly without
tearing or shredding the grass blades. Tearing and
shredding turns grass brown at the edges, which
slows growth and increases the chance of disease.
Check the cutter blades daily for sharpness, and
for any wear or damage. File down any nicks
and sharpen the blades as necessary. If a blade is
damaged or worn, replace it immediately with a
genuine Toro replacement blade. For convenient
sharpening and replacement, you may want to
keep extra blades on hand.
Figure 44
1.
2.
3.
4.
Relays
Alarm
Positive battery cable
Battery
5.
6.
7.
8.
Fuse block
Main-30 amp
Charge circuit-25 amp
Open slots
Drive System
Maintenance
A worn or damaged blade can break, and a
piece of the blade could be thrown into the
operator’s or bystander’s area, resulting in
serious personal injury or death.
Checking the Tire Pressure
• Inspect the blade periodically for wear
or damage.
Maintain the air pressure in the front and rear
tires as specified. Uneven tire pressure can cause
uneven cut. Check the pressure at the valve
stem after every 50 operating hours or monthly,
whichever occurs first (Figure 45). Check the
tires when they are cold to get the most accurate
pressure reading.
• Replace a worn or damaged blade.
Before Inspecting or Servicing the
Blades
Park the machine on a level surface, disengage the
blade control switch, and move the motion control
levers to the brake position. Stop the engine,
remove the key, and disconnect the spark plug
wire(s) from the spark plug(s).
Rear Tires: 13 psi (90 kPa)
Front Tires (castor wheels): 35 psi (139 kPa)
Inspecting the Blades
1. Inspect the cutting edges (Figure 46). If the
edges are not sharp or have nicks, remove and
37
sharpen the blades; refer to Sharpening the
Blades.
1/8 inch (3 mm), the blade is bent and must be
replaced. Refer to Removing the Blades and
Installing the Blades.
2. Inspect the blades, especially the curved area
(Figure 46). If you notice any damage, wear, or
a slot forming in this area (item 3 in Figure 46),
immediately install a new blade.
A blade that is bent or damaged could
break apart and could seriously injure or
kill you or bystanders.
• Always replace bent or damaged
blade with a new blade.
• Never file or create sharp notches in
the edges or surfaces of blade.
Removing the Blades
Figure 46
1. Cutting edge
2. Curved area
3.
Wear/slot forming
The blades must be replaced if a solid object is
hit, if the blade is out of balance, or the blade
is bent. To ensure optimum performance and
continued safety conformance of the machine, use
genuine Toro replacement blades. Replacement
blades made by other manufacturers may result in
non-conformance with safety standards.
Checking for Bent Blades
1. Rotate the blades until the ends face forward
and backward (Figure 47). Measure from a
level surface to the cutting edge, position A, of
the blades (Figure 47). Note this dimension.
Hold the blade end using a rag or thickly-padded
glove. Remove the blade bolt, curved washer,
blade stiffener, and blade from the spindle shaft
(Figure 48).
Figure 48
Figure 47
1. Rotational direction of right 6.
cutting blade
2. Right cutting blade
7.
2. Rotate the opposite ends of the blades forward.
3. Blade stiffener
3. Measure from a level surface to the cutting
edge of the blades at the same position as in
step 1. The difference between the dimensions
obtained in steps 1 and 2 must not exceed
1/8 inch (3 mm). If this dimension exceeds
4. Curved washer
5. Counter threaded blade
bolt, right cutting blade
38
8.
9.
10.
Fastening direction,
counter threaded bolt
Blade bolt, left cutting
blade
Fastening direction, normal
threaded bolt
Left cutting blade
Rotational direction of left
cutting blade.
Sharpening the Blades
1. Park the machine on a level surface and
disengage the blade control switch.
1. Use a file to sharpen the cutting edge at both
ends of the blade (Figure 49). Maintain the
original angle. The blade retains its balance if
the same amount of material is removed from
both cutting edges.
2. Move the motion control levers to the brake
position, stop the engine, remove the key, and
wait for all moving parts to stop before leaving
the operating position.
3. Check the air pressure of all four tires. If
needed, adjust to the recommended inflation;
refer to Checking the Tire Pressure in
Drive System Maintenance, page 37.
Figure 49
4. Set the height-of-cut lever to position D
[3 inch (76 mm)].
1. Sharpen at original angle
5. Carefully rotate the blade(s) side to side
(Figure 51). Measure between the outside
cutting edges and the flat surface (Figure 51).
If both measurements are not within 3/16 inch
(5 mm), an adjustment is required; continue
with this procedure.
2. Check the balance of the blade by putting it on
a blade balancer (Figure 50). If the blade stays
in a horizontal position, the blade is balanced
and can be used. If the blade is not balanced,
file some metal off the end of the sail area only
(Figure 49). Repeat this procedure until the
blade is balanced.
Figure 50
1. Blade
2.
Balancer
Installing the Blades
1. Install the blade onto the spindle shaft
(Figure 48).
Important: The curved part of the blade
must be pointing upward toward the inside
of the mower to ensure proper cutting.
Figure 51
1.
2.
2. Install the blade stiffener, the curved washer
(cupped side toward the blade) and the blade
bolt (Figure 48).
Blades side to side
Cutting edge
3.
4.
Outside cutting edges
Measure here
6. Remove the hairpin cotter and washer from
the leveling bracket (Figure 52).
3. Torque the blade bolt to 35-65 ft-lb
(47-88 N⋅m).
7. To level the blade(s), reposition the leveling
bracket(s) in a different hole and install the
washer and hairpin cotter. (Figure 52 ). A front
hole lowers the blade height and a rear hole
raises its height. Adjust both sides as required.
Leveling the Mower from
Side-to-Side
The mower blades must be level from side to side.
Check the side-to-side level any time you install
the mower or when you see an uneven cut on your
lawn.
39
Figure 52
1. Hairpin cotter and washer
2. Leveling bracket
3.
4.
Figure 53
Front hole
Rear hole
1. Leveling bracket
2. Adjusting block
8. Check the front-to-rear blade slope; refer to
Adjusting the Front-to-Rear Blade Slope.
3.
4.
Adjusting rod
Hairpin cotter and washer
8. Repeat steps 5 through 7 for the opposite side
of the mower.
Adjusting the Front-to-Rear
Blade Slope
9. Set the height-of-cut at position D [3 inch
(76 mm)] and carefully rotate the blades so
they are facing front to rear (Figure 54).
Check the front-to-rear blade level any time you
install the mower. If the front of the mower is
more than 5/16 inch (7.9 mm) lower than the
rear of the mower, adjust the blade level using the
following instructions:
1. Park the machine on a level surface and
disengage the blade control switch.
2. Move the motion control levers to the brake
position, stop the engine, remove the key, and
wait for all moving parts to stop before leaving
the operating position.
3. Check the air pressure of all four tires. If
needed, adjust to the recommended inflation;
refer to Checking the Tire Pressure in
Drive System Maintenance, page 37.
4. Check and adjust the side-to-side blade level
if you have not checked the setting; refer to
Leveling the Mower from Side-to-Side.
5. Measure the length of the rod extending out of
the adjusting block on the sides of the chassis
(Figure 53).
6. If the rod length is not a 3/4 inch (19 mm),
remove the hairpin cotter and washer from the
end of the adjusting rod (Figure 53) and turn
the rod until the 3/4 inch (19 mm) dimension
is obtained.
7. Install the end of the rod into the hole in the
mower mount and secure it with the washer
and hairpin cotter.
10. Measure from the tip of the front blade to the
flat surface and the tip of the rear blade to the
flat surface (Figure 54). If the front blade tip
is not 1/16-5/16 inch (1.6-7.9 mm) lower than
the rear blade tip, adjust the front locknuts.
Figure 54
1. Blades side to side
2. Cutting edge
3.
4.
Outside cutting edges
Measure here
11. To adjust the front-to-rear blade slope, remove
the locknuts and then rotate the adjustment
nuts in the front of the mower (Figure 55).
40
12. To raise the front of the mower, tighten the
adjustment nuts. To lower the front of the
mower, loosen the adjustment nuts.
13. After adjusting both adjustment nuts evenly,
check the front-to-rear slope again. Continue
adjusting the nuts until the front blade tip is
1/16-5/16 inch (1.6-7.9 mm) lower than the
rear blade tip (Figure 55).
Note: After adjusting the adjustment nuts,
make sure there is no slack in either support
rod (Figure 56). Tighten either one to remove
the slack (Figure 55).
Figure 56
1.
Hairpin cotter and clevis
pin
2.
Support rod
5. Remove the hairpin cotter and washer from
the adjusting rod (Figure 57) on each side of
the mower.
6. Remove the hairpin cotter and washer at
the mower leveling brackets (Figure 57) on
each side of the mower. Note which hole
the leveling bracket is mounted in for future
installation. Slide the brackets off of the
mounting pin.
Figure 55
1. Locknut and adjusting nut
2. Front tire
3.
4.
Adjustment nut
Lock nut
14. When the front-to-rear blade slope is correct,
tighten the lock nuts and check the side-to-side
level of the mower; refer to Leveling the
Mower from Side-to-Side.
Removing the Mower
Figure 57
Note: Before removing the mower, make a note
for which holes are used in the leveling brackets
(Figure 57).
1. Park the machine on a level surface and
disengage the blade control switch.
2. Move the motion control levers to the brake
position, stop the engine, remove the key, and
wait for all moving parts to stop before leaving
the operating position.
3. Lower the height-of-cut lever to the lowest
position.
4. Remove the hairpin cotter and clevis pin from
the front support rod on each side of the
mower (Figure 56).
1.
2.
Leveling bracket
Hairpin cotter and washer
3.
Adjusting rod
7. Lift up the front part of the machine and
support the machine using jack stands.
8. Slide the mower forward and out from
underneath the machine.
Note: Retain all parts for future installation.
Mower Belt Maintenance
Inspecting the Belts
Inspect all belts every 100 hours.
41
Check the belts for cracks, frayed edges, burn
marks, or any other damage. Replace damaged
belts.
The spring is under tension when
installed and can cause personal injury.
Replacing the Mower Belt
Be careful when moving the idler arm.
Squealing when the belt is rotating, blades slipping
when cutting grass, frayed belt edges, burn marks,
and cracks are signs of a worn mower belt. Replace
the mower belt if any of these conditions are
evident.
7. Route the new belt around the engine pulley
and mower pulleys (Figure 58). Install the new
belt under the belt guide and around the rear
pulley.
1. Park the machine on a level surface and
disengage the blade control switch.
8. Pull the idler pulley in the direction shown in
Figure 58 and route the belt onto the idler arm
pulley and spindle pulleys (Figure 58).
2. Move the motion control levers to the brake
position, stop the engine, remove the key, and
wait for all moving parts to stop before leaving
the operating position.
9. Tighten the belt guide fastener on the rear
pulley (Figure 58).
10. Install the belt covers over the outside spindles.
3. Set the height-of-cut at A [1-1/2 inch (38 mm)].
Installing the Mower
4. Remove the belt covers over the outside
spindles.
1. Park the machine on a level surface and
disengage the blade control switch.
5. Loosen fastener securing the belt guide to the
rear pulley (Figure 58).
2. Move the motion control levers to the brake
position, stop the engine, remove the key, and
wait for all moving parts to stop before leaving
the operating position.
6. Pull the idler arm in the direction shown in
Figure 58 and roll the belt off of the pulleys.
3. Lift the front of the machine and support it
with stands.
4. Slide the mower under the machine.
5. Lower the height-of-cut lever to the lowest
position.
6. Attach the adjusting rod to the machine with
the washer and hairpin cotter (Figure 57) on
each side of the mower.
7. Slide the leveling brackets onto the mounting
pins and secure them with the washers and
hairpin cotters (Figure 57).
8. Attach the front support rods to the machine
with the clevis pins and hairpin cotters
(Figure 56).
Figure 58
1.
2.
3.
4.
Idler arm
Spring
Bolt, spring retaining
Spindle pulleys
5.
6.
7.
8.
9. Install the mower belt onto the engine pulley;
refer to Replacing the Mower Belt.
Belt guide and fastener
Outside pulley
Mower belt
Deck adapter
42
Cleaning
Cleaning the Collection
Sensors
The collection sensors do not require any
scheduled maintenance, however; in the event
that the collection bag alarm goes off and the bag
is less than full, gently wipe off the faces of the
sensors with a soft cloth. The cloth can be damp
with water.
Important: Do not use solvents or chemicals
of any kind to clean the face of the sensors.
Figure 59
1.
2.
When finished using the machine, use a soft
cloth to clear away blockage between the sensors
(crusted or clumped up grass clippings or leaves).
Washout tting
Mower deck
3.
Hose
4. Lower the mower to the lowest height-of-cut.
Washing the Underside of
the Mower
5. Sit on the seat and start the engine. Engage the
blade control switch and let the mower run for
one to three minutes.
After each use, wash the underside of the mower
to prevent grass buildup for improved mulch
action and clipping dispersal.
6. Disengage the blade control switch, stop the
engine, and remove the ignition key. Wait for
all moving parts to stop.
1. Park the machine on a level surface and
disengage the blade control switch.
7. Turn the water off and remove the hose from
the washout fitting.
2. Move the motion control levers to the brake
position, stop the engine, remove the key, and
wait for all moving parts to stop before leaving
the operating position.
Note: If the mower is not clean after one
washing, soak it and let it stand for 30 minutes.
Then repeat the process.
8. Run the mower again for one to three minutes
to remove excess water.
3. Attach the hose to the end of the mower
washout fitting, and turn the water on high
(Figure 59).
Note: Spread petroleum jelly on the washout
fitting O-ring to make the hose slide on easier
and protect the O-ring.
A broken or missing washout fitting
could expose you and others to thrown
objects or blade contact. Contact with
blade or thrown debris can cause injury
or death.
• Replace broken or missing washout
fitting immediately, before using
mower again.
• Plug any hole(s) in mower with bolts
and locknuts.
• Never put your hands or feet under
the mower or through openings in
the mower.
43
Storage
Stop the engine, allow it to cool, and drain the
fuel tank; refer to Draining the Fuel Tank in
Fuel System Maintenance, page 33.
Cleaning and Storage
Restart the engine and run it until it stops.
1. Disengage the blade control switch, set the
parking brake, stop the engine, and remove
the key.
Choke or prime the engine. Start and run
the engine until it will not start. Operate the
primer, if equipped, several times to ensure no
fuel remains in the primer system.
2. Remove grass clippings, dirt, and grime from
the external parts of the entire machine,
especially the engine. Clean dirt and chaff from
the outside of the engine cylinder head fins
and blower housing.
Dispose of fuel properly. Recycle as per local
codes.
Important: Do not store
stabilizer/conditioned fuel over 90 days.
Important: You can wash the machine
with mild detergent and water. Do
not pressure wash the machine. Avoid
excessive use of water, especially near the
control panel, engine, hydraulic pumps,
and motors.
11. Remove the spark plug(s) and check its
condition; refer to Servicing the Spark Plug in
Engine Maintenance, page 29. With the spark
plug(s) removed from the engine, pour two
tablespoons of engine oil into the spark plug
hole. Use the starter to crank the engine and
distribute the oil inside the cylinder. Install the
spark plug(s). Do not install the wire on the
spark plug(s).
3. Service the air cleaner; refer to Servicing the
Air Cleaner in Engine Maintenance, page 29.
4. Grease and oil the machine; refer to
Lubrication, page 29.
12. Clean any dirt and chaff from the top of the
mower.
5. Change the crankcase oil and filter;
refer to Servicing the Engine Oil
in Engine Maintenance, page 29.
13. Scrape any heavy buildup of grass and dirt
from the underside of the mower, then wash
the mower with a garden hose.
6. Check the tire pressure; refer to Checking the
Tire Pressure in Drive System Maintenance,
page 37.
14. Check the condition of the drive and mower
belts.
7. Charge the battery; refer to Servicing the
Battery in Electrical System Maintenance,
page 34.
15. Check and tighten all bolts, nuts, and screws.
Repair or replace any part that is worn or
damaged.
8. Check the condition of the blades;
refer to Servicing the Cutting Blades in
Mower Maintenance, page 37.
16. Paint all scratched or bare metal surfaces. Paint
is available from your Authorized Service
Dealer.
9. Prepare the machine for storage when non-use
occurs over 30 days. Prepare the machine for
storage as follows.
17. Store the machine in a clean, dry garage or
storage area. Remove the key from the ignition
switch and keep it in a memorable place. Cover
the machine to protect it and keep it clean.
10. Add a petroleum based stabilizer/conditioner
to the fuel in the tank. Follow the mixing
instructions from the stabilizer manufacturer.
Do not use an alcohol based stabilizer (ethanol
or methanol).
Note: A fuel stabilizer/conditioner is most
effective when mixed with fresh fuel and used
at all times.
Run the engine to distribute the conditioned
fuel through the fuel system (5 minutes).
44
Troubleshooting
Problem
The engine overheats.
Possible Cause
1. The engine load is
excessive.
2. The oil level in the
crankcase is low.
3. The cooling ns and
air passages under the
engine blower housing
are plugged.
4. The air cleaner is dirty.
5. Dirt, water, or stale fuel
is in fuel system.
The starter does not crank
1. The blade control switch
is engaged.
2. The motion control
levers are not in the
brake position.
3. The operator is not
seated.
4. The battery is dead.
5. The electrical
connections are
corroded or loose.
6. A fuse is blown.
7. A relay or switch is
damaged.
45
Corrective Action
1. Reduce ground speed.
2. Add oil to the crankcase.
3. Remove the obstruction
from the cooling ns and
air passages.
4. Clean or replace the air
cleaner element.
5. Contact an Authorized
Service Dealer
1. Move the blade control
switch to Disengaged.
2. Move the motion control
levers to the brake
position.
3. Sit on the seat.
4. Charge the battery.
5. Check the electrical
connections for good
contact.
6. Replace the fuse.
7. Contact an Authorized
Service Dealer.
Problem
Possible Cause
Corrective Action
The engine will not start,
starts hard, or fails to keep
running.
1. The fuel tank is empty.
1. Fill the fuel tank.
2. The fuel valve turned off. 2. Open the fuel valve.
3. The choke is not on.
3. Move the choke lever to
On.
4. The air cleaner is dirty.
4. Clean or replace the air
cleaner element.
5. The spark plug wire(s) is 5. Install the wire(s) on the
loose or disconnected.
spark plug.
6. Install a new, correctly
6. The spark plug(s) is
gapped spark plug(s).
pitted, fouled, or the gap
is incorrect.
7. There is dirt in fuel lter. 7. Replace the fuel lter.
8. Dirt, water, or stale fuel 8. Contact an Authorized
is in fuel system.
Service Dealer.
9. There is incorrect fuel in 9. Drain the tank and
the fuel tank.
replace the fuel with the
proper type.
10.The oil level in the
10.Add oil to the crankcase.
crankcase is low.
The engine loses power.
1. The engine load is
excessive.
2. The air cleaner is dirty.
3. The oil level in the
crankcase is low.
4. The cooling ns and
air passages under the
engine blower housing
are plugged.
5. The spark plug(s) is
pitted, fouled, or the gap
is incorrect.
6. The vent in the fuel cap
is closed.
7. There is dirt in the fuel
lter.
8. Dirt, water, or stale fuel
is in the fuel system.
9. There is incorrect fuel in
the fuel tank.
The machine does not drive.
1. The traction belts are
worn, loose, or broken.
2. The traction belts are off
of the pulleys.
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1. Reduce ground speed.
2. Clean the air cleaner
element.
3. Add oil to the crankcase.
4. Remove the obstruction
from the cooling ns and
air passages.
5. Install a new, correctly
gapped spark plug(s).
6. Open the vent in the fuel
cap.
7. Replace the fuel lter.
8. Contact an Authorized
Service Dealer.
9. Drain the tank and
replace the fuel with the
proper type.
1. Contact an Authorized
Service Dealer.
2. Contact an Authorized
Service Dealer.
Problem
Possible Cause
Corrective Action
There is abnormal vibration.
1. The engine mounting
bolts are loose.
2. The engine pulley, idler
pulley, or blade pulley is
loose.
3. The engine pulley is
damaged.
4. The cutting blade(s)
is/are bent or
unbalanced.
5. A blade mounting bolt is
loose.
6. A blade spindle is bent.
1. Tighten the engine
mounting bolts.
2. Tighten the appropriate
pulley.
1. Low engine speed.
1. Always operate the
collection mode at Fast
throttle.
2. Remove debris, leaves or
grass clippings from the
chute system.
3. Empty the collection
bag.
Reduced bagging
performance.
2. Plugged chute, deck
door.
3. Collection bag is full.
Frequent clogging of chute
system.
5. Tighten the blade
mounting bolt.
6. Contact an Authorized
Service Dealer.
1. Collection bag is full.
2.
3.
4.
5.
Debris blowout.
3. Contact an Authorized
Service Dealer.
4. Install a new cutting
blade(s).
1. Empty the collection
bag.
Low engine speed.
2. Always operate the
collection mode at Fast
throttle.
Grass is too wet.
3. Cut grass when dry.
Grass is too long.
4. Cut 1/3 of the
grass height, lower
height-of-cut position
and repeat.
Ground speed is too fast. 5. Drive slower at Fast
throttle.
1. Collection bag is full.
1. Empty the collection
bag.
2. Ground speed is too fast. 2. Drive slower at Fast
throttle.
3. The mower is not level.
3. Level the mower
from side-to-side and
front-to-rear.
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Problem
Possible Cause
Corrective Action
Collection sensor alarm
sounding.
1. Collection bag is full.
1. Empty the collection
bag.
2. Debris is covering sensor. 2. Remove collection bag
and clean sensors with
soft cloth.
Uneven cutting height.
1. The blade(s) is not sharp. 1. Sharpen the blade(s).
2. A cutting blade(s) is/are 2. Install a new cutting
blade(s).
bent.
3. The mower is not level.
3. Level the mower
from side-to-side and
front-to-rear.
4. An anti-scalp wheel is
4. Adjust the anti-scalp
not set correctly.
wheel height.
5. The underside of the
5. Clean the underside of
mower is dirty.
the mower.
6. The tire pressure is
6. Adjust the tire pressure.
incorrect.
7. A blade spindle is bent.
7. Contact an Authorized
Service Dealer.
The blades do not rotate.
1. The drive belt is worn,
1. Install a new drive belt.
loose or broken.
2. The drive belt is off of the 2. Install the drive belt
pulley.
and check the adjusting
shafts and belt guides for
the correct position.
3. The mower belt is worn, 3. Install a new mower belt.
loose, or broken.
4. Collection bag is not
4. Check the bag and make
properly installed.
sure it is seated ush
with machine frame
and presence switch is
engaged.
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Schematics
Electrical Diagram (Rev. A)
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