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For Parts Call 606-678-9623 or 606-561-4983
Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty

OPERATOR’S MANUAL

21” Hi-Wheel Mower — Model Series 540
IMPORTANT
READ SAFETY RULES AND INSTRUCTIONS CAREFULLY BEFORE OPERATION
Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-covered, brushcovered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting applicable local or state laws (if any).
If a spark arrester is used, it should be maintained in effective working order by the operator. In the State of California the above is required by law
(Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply on federal lands. A spark arrester
for the muffler is available through your nearest engine authorized service dealer or contact the service department, P.O. Box 361131 Cleveland,
Ohio 44136-0019.

PRINTED IN U.S.A

Troy-Bilt LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019

www.mymowerparts.com

FORM NO. 769-02339A
10/24/2006

For Parts Call 606-678-9623 or 606-561-4983
This Operator’s Manual is an important part of your new lawn mower. It will help you assemble,
prepare and maintain the unit for best performance. Please read and understand what it says.

Table of Contents
Slope Gauge........................................................ 3
Safe Operation Practices.................................... 4
Setup and Adjustment........................................ 6
Operating Your Lawn Mower............................... 8
Maintaining Your Lawn Mower.......................... 10

Troubleshooting................................................. 12
Safety Labels..................................................... 13
Parts List............................................................ 14
Warranty..............................................Back Cover

Troy-Bilt LLC reserves the right to change product specifications, designs, and equipment without notice and without incurring obligation.

Finding and Recording Model Number
BEFORE YOU BEGIN TO ASSEMBLE YOUR NEW
EQUIPMENT, please locate the model plate on the
equipment and copy the information to the sample
model plate provided to the right. You can locate the
model plate by standing at the operating position and
looking down at the rear of the deck. This information
will be necessary to use the manufacturer’s web
site, to obtain assistance from the Customer Support Department, or when contacting an authorized
service dealer.

www.troybilt.com

TROY-BILT LLC
P. O. BOX 3 6 1 1 3 1
CLEVELAND, OH 44136
330-558-7220
866-840-6483

Customer Support
Please do NOT return the unit to the retailer from which it was
purchased, without first contacting Customer Support.

If you have difficulty assembling this product or have any questions regarding the controls, operation, or
maintenance of this unit, you can seek help from the experts. Choose from the options below:
• Visit www.troybilt.com

• Phone a Customer Support Representative at 1-866-840-6483.
• The engine manufacturer is responsible for all engine-related issues with regard to performance, power-rating, specifications,
warranty, and service. Please refer to the engine manufacturer’s Owner’s/Operator’s Manual, packed separately with your
unit, for more information.

www.mymowerparts.com

For Parts Call 606-678-9623 or 606-561-4983

Use this page as a guide to determine slopes where you may not operate safely.
Do not operate your lawn mower on such slopes.

Slope
Gauge
3IGHT AND HOLD THIS LEVEL WITH A VERTICAL TREE

&O
OR A FENCE POST

OR A CORNER OF A BUILDING

LD ALO
NG D
ESEN

TED L
I
N
E

REPR
LOPE

TS A
S

www.mymowerparts.com

WARNING
Do not mow on inclines
with a slope in excess
of 15 degrees (a rise
of approximately
2-1/2 feet every 10
feet). A riding mower
could overturn and
cause serious injury.
If operating a walkbehind mower on such
a slope, it is extremely
difficult to maintain your
footing and you could
slip, resulting in serious
injury.
Operate RIDING
mowers up and down
slopes, never across
the face of slopes.
Operate
WALK-BEHIND
mowers across the
face of slopes, never
up and down slopes.

For Parts Call 606-678-9623 or 606-561-4983

2
Safe
Operation
Practices

WARNING
This symbol points
out important safety
instructions which, if
not followed, could
endanger the personal
safety and/or property
of yourself and others.
Read and follow all
instructions in this
manual before attempting to operate
this machine. Failure
to comply with these
instructions may result
in personal injury. When
you see this symbol.
HEED ITS WARNING!

Your Responsibility
Restrict the use
of this power machine
to persons who read,
understand
and follow the warnings
and instructions
in this manual
and on the machine.

WARNING: Engine Exhaust, some of its constituents, and certain vehicle components contain or emit chemicals known to State of California to cause cancer and
birth defects or other reproductive harm.
DANGER: This machine was built to be operated according to the rules for safe operation in this
manual. As with any type of power equipment, carelessness or error on the part of the operator
can result in serious injury. This machine is capable of amputating hands and feet and throwing
objects. Failure to observe the following safety instructions could result in serious injury or death.

Children

6. Always wear safety glasses or safety goggles during operation and while performing an adjustment or repair to protect
your eyes. Thrown objects which ricochet can cause serious
injury to the eyes.
7. Wear sturdy, rough-soled work shoes and close-fitting
slacks and shirts. Shirts and pants that cover the arms and
legs and steel-toed shoes are recommended. Never operate
this machine in bare feet, sandals, slippery or light-weight
(e.g. canvas) shoes.
8. Do not put hands or feet near rotating parts or under cutting
deck. Contact with blade can amputate hands and feet.
9. A missing or damaged discharge cover can cause blade
contact or thrown object injuries.
10. Many injuries occur as a result of the mower being pulled
over the foot during a fall caused by slipping or tripping.
Do not hold on to the mower if you are falling; release the
handle immediately.
11. Never pull the mower back toward you while you are
walking. If you must back the mower away from a wall or
obstruction first look down and behind to avoid tripping and
then follow these steps:
a. Step back from mower to fully extend your arms.
b. Be sure you are well balanced with sure footing.
c. Pull the mower back slowly, no more than half way
toward you.
d. Repeat these steps as needed.
12. Do not operate the mower while under the influence of
alcohol or drugs.
13. Do not engage the self-propelled mechanism on units so
equipped while starting engine.
14. The blade control handle is a safety device. Never attempt
to bypass its operation. Doing so makes the safety device
inoperative and may result in personal injury through
contact with the rotating blade. The blade control handle
must operate easily in both directions and automatically
return to the disengaged position when released.
15. Never operate the mower in wet grass. Always be sure of
your footing. A slip and fall can cause serious personal
injury. If you feel you are losing your footing, release the
blade control handle immediately and the blade will stop
rotating within three seconds.
16. Mow only in daylight or good artificial light. Walk, never run.
17. Stop the blade when crossing gravel drives, walks or roads.
18. If the equipment should start to vibrate abnormally, stop the
engine and check immediately for the cause. Vibration is
generally a warning of trouble.

Tragic accidents can occur if operator is not alert to presence
of children. Children are often attracted to mower and mowing
activity. They do not understand the dangers. Never assume
that children will remain where you last saw them.
1. Keep children out of the mowing area and under watchful
care of a responsible adult other than the operator.
2. Be alert and turn mower off if a child enters the area.
3. Before and while moving backwards, look behind and down
for small children.
4. Use extreme care when approaching blind corners,
doorways, shrubs, trees, or other objects that may obscure
your vision of a child who may run into the mower.
5. Keep children away from hot or running engines. They can
suffer burns from a hot muffler.
6. Never allow children under 14 years old to operate a power
mower. Children 14 years old and over should read and
understand operation instructions and safety rules in this
manual and should be trained and supervised by a parent.

General Operation
1. Read this operator’s manual carefully in its entirety before
attempting to assemble this machine. Read, understand,
and follow all instructions on the machine and in the
manual(s) before operation. Be completely familiar with
the controls and the proper use of this machine before
operating it. Keep this manual in a safe place for future
and regular reference and for ordering replacement parts.
2. This machine is a precision piece of power equipment,
not a plaything. Therefore, exercise extreme caution at all
times. Your unit has been designed to perform one job: to
mow grass. Do not use it for any other purpose.
3. Never allow children under 14 years old to operate this
machine. Children 14 years old and over should read and
understand the instructions in this manual and should
be trained and supervised by a parent. Only responsible
individuals who are familiar with these rules of safe
operation should be allowed to use this machine.
4. Thoroughly inspect the area where the equipment is to
be used. Remove all stones, sticks, wire, bones, toys
and other foreign objects, which could be tripped over or
picked up and thrown by the blade. Thrown objects can
cause serious personal injury. Plan your mowing pattern
to avoid discharge of material toward roads, sidewalks,
bystanders and the like. Also, avoid discharging material
against a wall or obstruction, which may cause discharged
material to ricochet back toward the operator.
5. To help avoid blade contact or a thrown object injury,
stay in operator zone behind handles and keep children,
bystanders, helpers and pets at least 75 feet from mower
while it is in operation. Stop machine if anyone enters
area.

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For Parts Call 606-678-9623 or 606-561-4983
19. Shut the engine off and wait until the blade comes to a
complete stop before removing the grass catcher or unclogging the chute.
The cutting blade continues to rotate for a few seconds after
the engine is shut off. Never place any part of the body in
the blade area until you are sure the blade has stopped
rotating.
20. Never operate mower without proper trail shield, discharge
cover, grass catcher, blade control handle or other safety
protective devices in place and working. Never operate
mower with damaged safety devices. Failure to do so can
result in personal injury.
21. Muffler and engine become hot and can cause a burn. Do
not touch.
22. Only use parts and accessories made for this machine by
manufacturer. Failure to do so can result in personal injury.
23. If situations occur which are not covered in this manual,
use care and good judgment. Contact your dealer for
assistance.

Slope Operation
Slopes are a major factor related to slip and fall accidents, which
can result in severe injury. Operation on slopes requires extra
caution. If you feel uneasy on a slope, do not mow it. For your
safety, use the slope gauge included as part of this manual to
measure slopes before operating this unit on a sloped or hilly
area. If the slope is greater than 15 degrees, do not mow it.

Do:

1. Mow across the face of slopes; never up and down. Exercise
extreme caution when changing direction on slopes.
2. Watch for holes, ruts, rocks, hidden objects, or bumps
which can cause you to slip or trip. Tall grass can hide
obstacles.
3. Always be sure of your footing. A slip and fall can cause
serious personal injury. If you feel you are losing your
balance, release the blade control handle immediately, and
the blade will stop rotating within 3 seconds.

Do Not:

1. Do not mow near drop-offs, ditches or embankments, you
could lose your footing or balance.
2. Do not mow slopes greater than 15 degrees as shown on
the slope gauge.
3. Do not mow on wet grass. Unstable footing could cause
slipping.

Service
Safe Handling Of Gasoline:

1. To avoid personal injury or property damage use extreme
care in handling gasoline. Gasoline is extremely flammable
and the vapors are explosive. Serious personal injury can
occur when gasoline is spilled on yourself or your clothes,
which can ignite. Wash your skin and change clothes
immediately.
2. Use only an approved gasoline container.
3. Never fill containers inside a vehicle or on a truck or trailer
bed with a plastic liner. Always place containers on the
ground away from your vehicle before filling.
4. Remove gas-powered equipment from the truck or trailer
and refuel it on the ground. If this is not possible, then refuel
such equipment on a trailer with a portable container, rather
than from a gasoline dispenser nozzle.
5. Keep the nozzle in contact with the rim of the fuel tank or
container opening at all times until fueling is complete. Do
not use a nozzle lock-open device.

6. Extinguish all cigarettes, cigars, pipes and other sources
of ignition.
7. Never fuel machine indoor because flammable vapors will
accumulate in the area.
8. Never remove gas cap or add fuel while engine is hot or
running. Allow engine to cool at least two minutes before
refueling.
9. Never over fill fuel tank. Fill tank to no more than ½ inch
below bottom of filler neck to provide for fuel expansion.
10. Replace gasoline cap and tighten securely.
11. If gasoline is spilled, wipe it off the engine and equipment.
Move unit to another area. Wait 5 minutes before starting
engine.
12. Never store the machine or fuel container near an open
flame, spark or pilot light as on a water heater, space
heater, furnace, clothes dryer or other gas appliances.
13. To reduce fire hazard, keep mower free of grass, leaves,
or other debris build-up. Clean up oil or fuel spillage and
remove any fuel soaked debris.
14. Allow a mower to cool at least 5 minutes before storing.

2
Safe
Operation
Practices

General Service:

1. Never run an engine indoors or in a poorly ventilated area.
Engine exhaust contains carbon monoxide, an odorless
and deadly gas.
2. Before cleaning, repairing, or inspecting, make certain the
blade and all moving parts have stopped. Disconnect the
spark plug wire and ground against the engine to prevent
unintended starting.
3. Check the blade and engine mounting bolts at frequent
intervals for proper tightness. Also, visually inspect blade
for damage (e.g., bent, cracked, worn) Replace blade with
the original equipment manufacture’s (O.E.M.) blade only,
listed in this manual. “Use of parts which do not meet the
original equipment specifications may lead to improper
performance and compromise safety!”
4. Mower blades are sharp and can cut. Wrap the blade or
wear gloves, and use extra caution when servicing them.
5. Keep all nuts, bolts, and screws tight to be sure the equipment is in safe working condition.
6. Never tamper with safety devices. Check their proper
operation regularly.
7. After striking a foreign object, stop the engine, disconnect the spark plug wire and ground against the engine.
Thoroughly inspect the mower for any damage. Repair the
damage before starting and operating the mower.
8. Never attempt to make a wheel or cutting height adjustment while the engine is running.
9. Grass catcher components, discharge cover, and trail
shield are subject to wear and damage which could
expose moving parts or allow objects to be thrown. For
safety protection, frequently check components and replace immediately with original equipment manufacturer’s
(O.E.M.) parts only, listed in this manual. “Use of parts
which do not meet the original equipment specifications
may lead to improper performance and compromise
safety!”
10. Do not change the engine governor setting or over-rev the
engine. The governor controls the maximum safe operating
speed of the engine.
11. Maintain or replace safety labels, as necessary.
12. Observe proper disposal laws and regulations. Improper
disposal of fluids and materials can harm the environment.

www.mymowerparts.com

WARNING
This symbol points
out important safety
instructions, which if
not followed, could
endanger the personal
safety and/or property
of yourself and others.
Read and follow all
instructions in this manual before attempting to
operate this machine.
Failure to comply with
these instructions may
result in personal injury.
When you see this
symbol.
HEED IT’S WARNING!

Your Responsibility
Restrict the use
of this power machine
to persons who read,
understand
and follow the warnings
and instructions
in this manual
and on the machine.

For Parts Call 606-678-9623 or 606-561-4983

1. Remove any packing material which may be between
upper and lower handles.
a. Pull up and back on upper handle as shown in
Figure 3-1. Make certain the lower handle is seated
securely into the handle mounting brackets. Do not
crimp cable while lifting the handle up.

Setup and
Adjustment

b. Tighten star knobs to secure upper handle to
lower handle. Make sure that each carriage bolt is
seated properly in the handle.
2. Locate the hairpin clip on the weld pin on each side of
lower handle.
a. Remove hairpin clip from this hole. Using a pair
of pliers, insert hairpin clip into the hole on pin
closest to the bracket. See Figure 3-2. Repeat on
other side.

B
Stand behind the mower
as if you were going to
operate it. Your right
hand corresponds to the
right side of the mower;
your left hand corresponds to the left side of
the mower.

b. Insert a carriage bolt from the hardware pack into
the upper hole on the handle mounting bracket.
Secure with one plastic wing nut, also included
in the hardware pack. Repeat on other side with
remaining items from hardware pack.

Figure 3-1: Unfold handle, tighten hardware.

Hardware Pack

Wing Nuts (2)

Carriage Bolts (2)

a. Hold blade control against upper handle.
b. Pull starter rope out of the engine. Release blade
control.

Make sure to route cable
outside the lower handle.
Do not crimp cable while
lifting the handle up.
IMPORTANT
This unit is shipped without gasoline or oil in the
engine. Fill up gasoline
and oil as instructed in
the accompanying engine
manual BEFORE operating your mower.
This Operator’s Manual
may cover a range of
product specifications
for various models.
Characteristics, features,
and engines discussed
and/or illustrated in
this manual may not be
applicable to all models.
MTD LLC reserves the
right to change product
specifications, designs,
and equipment without
notice and without incurring obligation.

3. The rope guide is attached to the right side of the
upper handle. See Figure 3-3. Loosen the wing nut
which secures the rope guide.

c. Slip starter rope into rope guide.

d. Tighten wing nut.
4. Insert post on cable tie into hole provided on the lower
handle. Pull cable tie tight and trim excess. See Figure
3-4.

Figure 3-2: Secure lower handle to mounting brackets.

Figure 3-3: Pull recoil starter through rope guide and tighten.

Figure 3-4: Secure cables to handle using cable tie.

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For Parts Call 606-678-9623 or 606-561-4983
5. Follow steps below to assemble the grass catcher.
Make certain bag is turned right side out before
assembling (warning label will be on the outside)

7. Your mower is shipped as a mulcher. To convert to
side discharge, make sure grass catcher is off of the
unit and rear discharge door is closed.

a. Place bag over frame so that its black plastic side
is at the bottom.

a. On the side of the mower, lift the mulching plug.
See Figure 3-7.

b. Slip plastic channel of grass bag over hooks on
the frame. See Figure 3-5. All the plastic channels
except center top of bag attach from outside of
bag.

b. Slide two hooks of side discharge chute under
hinge pin on mulching plug assembly. Lower the
mulching plug. Do not remove side mulching plug
at any time, even when you are not mulching.

c. Attach center top of bag from inside of bag.

3
Setup and
Adjustment

WARNING
C

Figure 3-7: Lift mulch plug and install side discharge chute.

Adjustments

Figure 3-5: Assemble the grass catcher.

6. Follow the steps below to attach the grass catcher:
a. Lift rear discharge door. See Figure 3-6.
b. Place grass catcher on the pivot rod. Let go
of discharge door so that it rests on the grass
catcher.
WARNING: Never operate mower unless the
hooks on the grass catcher are firmly seated
on the pivot rod and the rear discharge door rests
firmly against top of the grass catcher.

An adjusting plate and thumb lever at each wheel
provides cutting height adjustment.
1. Depress lever towards wheel.
2. Move it to any one of the positions for desired cutting
height. See Figure 3-8. Make sure that each wheel is
positioned at the same height.
3. Release lever towards mower deck.

NOTE: When adjusting
the cutting height,
all wheels must be
positioned at the same
height.

2
1
3

B
A

Figure 3-6: Attach the grass catcher.

Never operate mower
without the mulching
plug, the grass catcher,
or the discharge chute
properly installed.

Figure 3-8: Use levers to adjust cutting height.

www.mymowerparts.com

For Parts Call 606-678-9623 or 606-561-4983

4
Operating
Your Lawn
Mower

Know Your Lawn Mower
Blade Control

Recoil Starter

Cutting Height
Adjustment
Levers (front
and rear)

WARNING
The blade control is a
safety device. Never
attempt to bypass its
operations.

Mulch Plug
Side Discharge Chute

Use extreme care when
handling gasoline.
Gasoline is extremely
flammable and the
vapors are explosive.
Never fuel the machine
indoors or while the
engine is hot or running.
Extinguish cigarettes,
cigars, pipes, and other
sources of ignition.
Keep hands and feet
away from the cutting
deck. Refer to warning
label on the unit.

Figure 4-1: The major parts on the lawn mower.

Mulch Plug

Now that you have set up your lawn mower for operation, read this section to become acquainted with its
controls and features. This knowledge will allow you to
use your new equipment to its fullest potential.

The mulch plug is used for mulching purposes. Instead of
collecting the grass clippings in a grass catcher or using
the side discharge chute, some mower models have the
option of recirculating the clippings back to the lawn. This
is called mulching.

Blade Control

The blade control is attached to the upper handle.
Depress and squeeze it against the upper handle to
operate the unit. Release it to stop engine and blade.

Grass Catcher

The grass catcher, located at the rear of the mower, is
used to bag the grass clippings for disposal at another
site. Once the bag is full, it has to be removed from the
mower and emptied before any further mowing.

WARNING: This blade control is a safety
device. Do not bypass its operations.

Gas and Oil Fill-Up

Cutting Height Adjustment Levers

1. Check oil level and add oil if necessary. Follow engine
owner’s manual for this.

One adjustment lever is located on each wheel and is
used to adjust the cutting height. All four wheels must
be at the same position to ensure a uniform cut.

2. Service the engine with gasoline as instructed in the
engine owner’s manual.

Recoil Starter

WARNING: Use extreme care when handling
gasoline. Gasoline is extremely flammable
and the vapors are explosive. Never fuel the machine
indoors or while the engine is hot or running. Extinguish cigarettes, cigars, pipes, and other sources of
ignition.

The recoil starter is attached to the right upper handle.
Stand behind the unit and pull the recoil starter rope to
start the unit.

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For Parts Call 606-678-9623 or 606-561-4983

Starting Engine
WARNING: Be sure no one other than the operator is standing near the lawn mower while
starting engine or operating mower. Never
run engine indoors or in enclosed, poorly ventilated
areas. Engine exhaust contains carbon monoxide, an
odorless and deadly gas. Keep hands, feet, hair and
loose clothing away from any moving parts on engine
and lawn mower.

Follow the set of instructions pertaining to your unit.
Refer to engine manual for help with the engine.

Briggs & Stratton/ Tecumseh Engine:

1. If equipped, push primer three times. Wait about
two seconds between each push. See Figure 4-2. In
temperature around 55° F or below, prime five times.
Do not prime to restart a warm engine.

Operating
Your Lawn
Mower

2. Standing behind the mower, squeeze the blade control Figure 4-2: Starting the Briggs & Stratton engine.
against upper handle. See Figure 4-2.
3. Holding these two handles together firmly, grasp recoil
starter handle and pull rope out with a rapid, continuous, full arm stroke. See Figure 4-2. Keeping a firm
grip on the starter handle, let the rope rewind slowly.
Repeat until engine cranks. Let the rope rewind each
time slowly.

WARNING

Honda Engine:

1. Place the fuel valve lever found on the left side of the
engine into the ON (OPEN) position. See Figure 4-3.
2. Move the choke lever (if equipped) all the way
backward into the choke position.
3. Standing behind the mower, squeeze the blade control
against upper handle. See Figure 4-3. The choke will
now begin to slowly return to the off choke position
after activating the blade control. Therefore, quickly
move onto step four below.

OFF
ON

4. Holding these two handles together firmly, grasp recoil Figure 4-3: Starting the Honda engine.
starter handle and pull rope out with a rapid, continuWARNING: If you strike a foreign object,
ous, full arm stroke. See Figure 4-3. Keeping a firm
stop the engine. Remove wire from the spark
grip on the starter handle let the rope rewind slowly.
plug, thoroughly inspect mower for any damage,
Repeat until engine cranks. Let the rope rewind each
and repair damage before restarting and operating.
time slowly.
Extensive vibration of mower during operation is an
indication of damage. The unit should be promptly
WARNING: Wait for the blade to stop cominspected and repaired.
pletely before performing any work on the
mower or to remove the grass catcher.

Using as Mulcher

Stopping Engine

1. Release blade control to stop the engine and blade.
2. Disconnect spark plug wire from spark plug and
ground against the engine.

Using Your Lawn Mower

Be sure lawn is clear of stones, sticks, wire, or other
objects which could damage lawn mower or engine.
Such objects could be accidently thrown by the mower
in any direction and cause serious personal injury to the
operator and others.

For mulching grass, remove the grass catcher and side
discharge chute from the mower. For effective mulching,
do not cut wet grass. If the grass has been allowed to
grow in excess of four inches, mulching is not recommended. Use the grass catcher to bag clippings instead.

Using Grass Catcher

You can use the grass catcher to collect clippings while
you are operating the mower. Refer to setup section for
instructions on attaching the grass catcher.

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The operation of any
lawn mower can result
in foreign objects being
thrown into the eyes,
which can damage your
eyes severely. Always
wear safety glasses
while operating the
mower or while performing any adjustments or
repairs on it.
Be sure no one other
than the operator is
standing near the
lawn mower while
starting engine or
operating mower. Never
run engine indoors or
in enclosed, poorly
ventilated areas. Engine
exhaust contains carbon
monoxide, an odorless
and deadly gas. Keep
hands, feet, hair and
loose clothing away
from any moving parts
on engine and lawn
mower.

For Parts Call 606-678-9623 or 606-561-4983

Deck Care

Clean underside of the mower deck after each use to
prevent build-up of grass clippings or other debris. Follow
steps below for this job.
1. Disconnect spark plug wire. Drain gasoline from lawn
mower or place a piece of plastic under the gas cap.

Maintaining
Your Lawn
Mower

2. Tip mower so that it rests on the housing. Keep the
side with the air cleaner facing up. Hold mower firmly.
WARNING: Never tip the mower more
than 90º in any direction and do not
leave the mower tipped for any length of
time. Oil can drain into the upper part of the engine
causing a starting problem.

Figure 5-1: Areas to lubricate on mower.

3. Scrape and clean the underside of the deck with a
suitable tool. Do not spray with water.

General Recommendations

4. Put the mower back on its wheels on the ground. If
you had put plastic under the gas cap earlier, make
sure to remove it now.

WARNING
Always stop engine,
disconnect spark
plug, and ground
against engine before
performing any type
of maintenance on
your machine.

• Always observe safety rules when performing
any maintenance.
• The warranty on this lawn mower does not cover
items that have been subjected to operator abuse
or negligence. To receive full value from warranty,
operator must maintain the lawn mower as
instructed here.
• Changing of engine-governed speed will void
engine warranty.
• All adjustments should be checked at least once
each season.
• Periodically check all fasteners and make sure these
are tight.

Do not use a pressure
washer or garden
hose to clean your
unit. These may cause
damage to electric
components, spindles,
pulleys, bearings, or
the engine. The use
of water will result in
shortened life and
reduce serviceability.
This Operator’s Manual
covers several models.
Lawn Mower features
vary by model. Not
all features discussed
(or engines pictured)
in this manual are
applicable to all Lawn
Mower models.

WARNING: Always stop engine, disconnect spark plug, and ground against
engine before performing any type of
maintenance on your machine.

Lubrication

1. Lubricate pivot points on the blade control at least
once a season with light oil. The blade control must
operate freely in both directions. See Figure 5-1.

Engine Care

A list of key engine maintenance jobs required for good
performance by the mower is given below. Follow the
accompanying engine manual for a detailed list and
instructions.
• Maintain oil level as instructed in engine manual.
• Service air cleaner every 25 hours under normal
conditions. Clean every few hours under extremely
dusty conditions. Poor engine performance and
flooding usually indicates that the air cleaner should
be serviced. To service the air cleaner, refer to the
engine manual.
• Clean spark plug and reset the gap once a season.
Spark plug replacement is recommended at the start
of each mowing season. Check engine manual for
correct plug type and gap specifications.
• Clean engine regularly with a cloth or brush. Keep the
cooling system (blower housing area) clean to permit
proper air circulation. Remove all grass, dirt, and
combustible debris from muffler area.

2. Lubricate the wheels at least once a season with
light oil (or motor oil). If wheels are removed for any
reason, lubricate surface of the pivot arm and inner
surface of the wheel with light oil. See Figure 5-1.
3. Lubricate the torsion spring and pivot point on the
rear discharge door and side mulch plug periodically
with light oil to prevent rust. See Figure 5-1.
4. Follow the accompanying engine manual for lubrication schedule and instruction for engine lubrication.

www.mymowerparts.com

For Parts Call 606-678-9623 or 606-561-4983

Blade Care

WARNING: When removing the cutting
blade for sharpening or replacement,
protect your hands with a pair of heavy
gloves or use a heavy rag to hold the
blade.

Maintaining
Your Lawn
Mower

Periodically inspect the blade adapter for cracks,
especially if you strike a foreign object. Replace when
necessary. Follow the steps below for blade service.
1. Disconnect spark plug wire from spark plug. Turn
mower on its side making sure that the air filter and
the carburetor are facing up.
2. Remove the bolt and the blade bell support which
hold the blade and the blade adapter to the engine
crankshaft, Figure 5-2.
3. Remove blade and adapter from the crankshaft,
Figure 5-2.

Figure 5-2: Remove the bolt, support, and adapter to access
the blade.

4. The blade can be sharpened with a file or on a grinding wheel. Do not attempt to sharpen the blade while it
is still on the mower.

WARNING

When sharpening the blade, follow the original angle
of grind. Grind each cutting edge equally to keep the
blade balanced.

When removing
the cutting blade
for sharpening or
replacement, protect
your hands with a pair
of heavy gloves or use
a heavy rag to hold
the blade.

5. To test for balance, remove blade and balance on
a round shaft screwdriver. Remove metal from the
heavy side until it balances evenly.
WARNING: An unbalanced blade will
cause excessive vibration when rotating
at high speeds. It may cause damage to
mower and could break causing personal
injury.
6. Lubricate the engine crankshaft and the inner surface
of the blade adapter with light oil. Slide the blade
adapter onto the engine crankshaft.
7. Place the blade on the adapter such that the side
of the blade marked “Bottom” (or with part number)
faces the ground when the mower is in the operating
position. Make sure that the blade is aligned and
seated on the blade adapter flanges.
8. Place blade bell support on the blade. Align notches
on the blade bell support with small holes in blade.
9. Replace hex bolt and tighten hex bolt to torque: 450
in. lbs. min., 600 in. lbs. max.
To ensure safe operation of your mower, periodically
check the blade bolt for correct torque.

Replacing Rear Flap

1. To remove rear flap, lift rear door, and press flap in on
either side to remove from hole. See Figure 5-3.
2. Remove flap from opposite hole and replace with new
flap in the opposite order and manner of removal.

Figure 5-3: Remove rear flap.

Off-Season Storage

The following steps should be taken to prepare your
lawn mower for storage.
• Clean and lubricate mower thoroughly as described
in the lubrication instructions.
• Do not use a pressure washer or garden hose to
clean your unit.
• Refer to engine manual for correct engine
storage instructions.
• Coat mower’s cutting blade with chassis grease to
prevent rusting.
• Store mower in a dry, clean area. Do not store next
to corrosive materials, such as fertilizer.
When storing any type of power equipment in a poorly
ventilated or metal storage shed, care should be taken
to rust-proof the equipment. Using a light oil or silicone,
coat the equipment, especially cables and all moving
parts of your lawn mower before storage.

www.mymowerparts.com

An unbalanced blade
will cause excessive
vibration when rotating at high speeds. It
may cause damage
to mower and could
break causing personal injury.

For Parts Call 606-678-9623 or 606-561-4983

Engine fails to start

Trouble
Shooting

1.
2.
3.
4.

1. Spark plug wire loose.
2. Blocked fuel line or stale fuel.

1.
2.
3.
4.

Engage blade control.
Connect wire to spark plug.
Fill tank with clean, fresh gasoline.
Choke engine as instructed in the
“Operating Your Lawn Mower” section.
5. Clean, adjust gap, or replace.
6. Clean fuel line.
7. Wait a few minutes to restart, but do
not prime.

Vent in gas cap plugged.
Water or dirt in fuel system.
Dirty air cleaner.
Carburetor out of adjustment.

1. Connect and tighten spark plug wire.
2. Clean fuel line; fill tank with clean,
fresh gasoline.
3. Clear vent.
4. Drain fuel tank. Refill with fresh fuel.
5. Refer to engine manual.
6. Refer to engine manual.

Engine overheats

1. Engine oil level low.
2. Air flow restricted.
3. Carburetor not adjusted properly.

1. Fill crankcase with proper oil.
2. Remove blower housing and clean.
3. Refer to engine manual.

Occasional skips
(hesitates) at high speed

1. Spark plug gap too close.
2. Carburetor idle mixture adjustment
improperly set.

1. Adjust gap to .030-inch.
2. Refer to engine manual.

Idles poorly

1. Spark plug fouled, faulty or gap too wide.

1. Reset gap to .030-inch or replace
spark plug.
2. Refer to engine manual.
3. Refer to engine manual.

3.
4.
5.
6.

For repairs beyond
the minor adjustments
listed here, contact
an authorized service
dealer.

Blade control disengaged.
Spark plug wire disconnected.
Fuel tank empty or stale fuel.
Engine not choked.

5. Faulty spark plug.
6. Blocked fuel line.
7. Engine flooded.

Engine runs erratic

Remedy

Cause

Problem

2. Carburetor improperly adjusted.
3. Dirty air cleaner.

Excessive Vibration

1. Cutting blade loose or unbalanced.
2. Bent cutting blade.

Mower will not mulch grass

1. Wet grass.
2. Excessively high grass.

3. Dull blade.

Uneven cut

1. Wheels not positioned correctly.
2. Dull blade.

NOTE: Specifications are
subject to change without
notification or obligation.
Images my not reflect your
exact model and are for
reference purposes only.

www.mymowerparts.com

1. Tighten blade and adapter. Balance
blade.
2. See an authorized service dealer.
1. Do not mow when grass is wet; wait
until later to cut.
2. Mow once at a high cutting height,
then mow again at desired height or
make a narrower cutting path.
3. Sharpen or replace blade.
1. Place all four wheels in same
height position.
2. Sharpen or replace blade.

For Parts Call 606-678-9623 or 606-561-4983
Safety Labels Found On Your Lawn Mower

TO REDUCE THE RISK OF INJURY, DO NOT
OPERATE UNLESS DISCHARGE COVER OR
GRASS CATCHER IS IN ITS PROPER PLACE.
IF DAMAGED, REPLACE IMMEDIATELY.

7
Safety
Labels

WARNING
TO REDUCE THE RISK OF INJURY, DO NOT
O P E R AT E U N L E S S DISCHARGE COVER OR
GRASS C AT C H E R I S I N I T S P RO P E R P L AC E .
I F DA M AG E D, R E P L AC E I M M E D I AT E LY.

MAX 15˚

AVOID SERIOUS INJURY OR DEATH
• KEEP H A N D S A N D F E E T A W AY F R O M
R O TAT I N G PA R T S .
• REMOVE OBJECTS THAT CAN BE THROWN
BY THE BLADE IN ANY DIRECTION.
WEAR SAFETY GLASSES.

• DO NOT MOW WHEN CHILDREN OR OTHERS
ARE AROUND.

KEEP HANDS and FEET AWAY

• USE EXTRA CAUTION ON SLOPES. DO NOT
M O W S L O P E S G R E AT E R T H A N 1 5 ˚ M O W
ACROSS, NEVER UP AND DOWN. NEVER
PULL MOWER CLOSE TO YOUR FEET. LOOK
DOWN AND BEHIND BEFORE AND WHILE
M O V I N G B A C K WA R D S .

READ OPERATOR'S MANUAL KEEP SAFETY DEVICES (BLADE CONTROL, TRAILING SHIELD,
DISCHARGE COVER, ETC) IN PLACE AND WORKING. IF DAMAGED, REPLACE IMMEDIATELY.

S32102 CD

www.mymowerparts.com

DO NOT remove safety
(or any) labels from
mower for any reason.

For Parts Call 606-678-9623 or 606-561-4983
Model Series 540

5
3
6

2
7

42
47

9
10

48
46

11
43
41

39
35
28

33
13

40
37

34
30

24
28

25
26

18
22

Wheel Treads
50

K2 Bar

Bar

21
20

S-Wave

www.mymowerparts.com

For Parts Call 606-678-9623 or 606-561-4983

Ref. Part No.

Description

747-1161A

Blade Control

749-1092A

Upper Handle

746-1130

Ref. Part No.

Description

687-02076A

Front Pivot Arm Assembly - LH

734-04014B

Front Wheel, 8 x 2.125, S-Wave

Control Cable, 40”

738-0507B

Shoulder Screw, .5D x .434

726-0240

Cable Tie

732-0404

Front Spring Lever

664-04011

Grass Bag Assembly

720-0426

Height Adjust Knob

747-04080

Grass Bag Frame

710-0599

TT Screw, 1/4-20 x .500

720-0279

Handle Knob

736-0270

Bell Washer

731-05642

Trail shield

710-0654A

TT Screw, 3/8-16 x 1.0

747-04588

Pivot Rod

710-0216

Hex Screw, 3/8-16 x .75

631-04225

Rear Discharge Door

710-1652

TT Screw, 1/4-20 x .625

687-02280

Rear Handle Bracket Assy. - LH

720-0312

Foam Grip

687-02279

Rear Handle Bracket Assy. - RH

734-04127

Rear Wheel, 12 x 2.125, S-Wave

787-01279

Deck 21-inch

710-1205

Eye Bolt

687-02075A

Front Height Adj. Assy-LH

732-0866

Rear Hi-Wheel Spring Lever

687-02074A

Front Height Adj. Assy-RH

687-02039A

Rear Pivot Arm Assy - RH

782-5002B

Front Baffle

687-02040A

Rear Pivot Arm Assy - LH

748-04082

Blade Adapter

714-0104

Hairpin Clip

742-0741

21-inch Mulching Blade

720-04072

Star Knob

736-0524B

Bell Blade Support

710-0703

Carriage Bolt ,1/4-20 x .75

710-1257

Hex Screw, 3/8-24 x 2.5

731-04150C

Rear Baffle

731-04177

Side Discharge Chute

710-1241

Screw HL, 1/4-15 x 1.00

17032A

Deflector Chute Adaptor

732-04090A

Torsion Spring - RH

732-1014

Torsion Spring

710-1174

Carriage Bolt, 5/16-18 x 2

747-0710

Hinge Pin

712-0397

Wing Nut

687-02055

Hinged Mulch Plug Assembly

749-0928A

Lower Handle

712-04065

Flange Lock Nut 3/8-16

736-0182

Spring Washer

787-01290

Height Adjustment Plate

731-04204†

Deluxe Red Bail Cover

687-02077A

Front Pivot Arm Assembly - RH
† If Equipped

www.mymowerparts.com

8
Parts List

For parts and/or
accessories please
call 1-866-840-6483,
or 1-330-558-7220
www.troybilt.com

For Parts Call 606-678-9623 or 606-561-4983
MANUFACTURER’S LIMITED WARRANTY FOR

The limited warranty set forth below is given by Troy-Bilt LLC with respect
to new merchandise purchased and used in the United States, its possessions and territories.
“Troy-Bilt” warrants this product against defects in material and workmanship for a period of two (2) years commencing on the date of original
purchase and will, at its option, repair or replace, free of charge, any part
found to be defective in materials or workmanship. This limited warranty
shall only apply if this product has been operated and maintained in
accordance with the Operator’s Manual furnished with the product, and
has not been subject to misuse, abuse, commercial use, neglect, accident,
improper maintenance, alteration, vandalism, theft, fire, water, or damage
because of other peril or natural disaster. Damage resulting from the
installation or use of any part, accessory or attachment not approved by
Troy-Bilt for use with the product(s) covered by this manual will void your
warranty as to any resulting damage.
Normal wear parts are warranted to be free from defects in material and
workmanship for a period of thirty (30) days from the date of purchase.
Normal wear parts include, but are not limited to items such as: batteries,
belts, blades, blade adapters, grass bags, rider deck wheels, seats, snow
thrower skid shoes, shave plates, auger spiral rubber and tires.
HOW TO OBTAIN SERVICE: Warranty service is available, WITH
PROOF OF PURCHASE, through your local authorized service
dealer. To locate the dealer in your area, check your Yellow Pages,
or contact Troy-Bilt LLC at P.O. Box 361131, Cleveland, Ohio 441360019, or call 1-866-840-6483 or 1-330-558-7220, or log on to our
Web site at www.troybilt.com.
This limited warranty does not provide coverage in the following cases:
a.
b.
c.

The engine or component parts thereof. These items may
carry a separate manufacturer’s warranty. Refer to applicable
manufacturer’s warranty for terms and conditions.
Log splitter pumps, valves, and cylinders have a separate one
year warranty.
Routine maintenance items such as lubricants, filters, blade
sharpening, tune-ups, brake adjustments, clutch adjustments,
deck adjustments, and normal deterioration of the exterior finish
due to use or exposure.
Service completed by someone other than an authorized service
dealer.

f.
g.

Troy-Bilt does not extend any warranty for products sold or
exported outside of the United States, its possessions and
territories, except those sold through Troy-Bilt’s authorized
channels of export distribution.
Replacement parts that are not genuine Troy-Bilt parts.
Transportation charges and service calls.

No implied warranty, including any implied warranty of merchantability of fitness for a particular purpose, applies after the applicable
period of express written warranty above as to the parts as identified. No other express warranty, whether written or oral, except as
mentioned above, given by any person or entity, including a dealer or
retailer, with respect to any product, shall bind Troy-Bilt. During the
period of the warranty, the exclusive remedy is repair or replacement
of the product as set forth above.
The provisions as set forth in this warranty provide the sole and
exclusive remedy arising from the sale. Troy-Bilt shall not be liable
for incidental or consequential loss or damage including, without
limitation, expenses incurred for substitute or replacement lawn care
services or for rental expenses to temporarily replace a warranted
product.
Some states do not allow the exclusion or limitation of incidental or
consequential damages, or limitations on how long an implied warranty
lasts, so the above exclusions or limitations may not apply to you.
In no event shall recovery of any kind be greater than the amount of the
purchase price of the product sold. Alteration of safety features of the
product shall void this warranty. You assume the risk and liability for
loss, damage, or injury to you and your property and/or to others and their
property arising out of the misuse or inability to use the product.
This limited warranty shall not extend to anyone other than the original
purchaser or to the person for whom it was purchased as a gift.
HOW STATE LAW RELATES TO THIS WARRANTY: This limited warranty gives you specific legal rights, and you may also have other rights
which vary from state to state.
IMPORTANT: Owner must present Original Proof of Purchase to obtain
warranty coverage.

TROYBILT LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019; Phone: 1(866) 840-6483, 1-330-558-7220

www.mymowerparts.com

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