20 020 Series Push 770 10419e

User Manual: 20

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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

20-inch Rotary Mower — Model Series 020
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

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

www.mymowerparts.com

FORM NO. 770-10419E
12/19/2006

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............................. 10
Maintaining Your Lawn Mower.......................... 12

Troubleshooting................................................. 14
Safety Labels..................................................... 15
Parts List............................................................ 16
Warranty..............................................Back Cover

MTD 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.

Model Number

Serial Number

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.mtdproducts.com
• Call a Customer Support Representative at 1-800-800-7310.
• The engine manufacturer is responsible for all engine-related issues with regards to performance, powerrating, 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

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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).
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.

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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

Loose Parts
Carton contents include: Wheels, Handles (upper & lower), Blade Control Handle, Chute Deflector & a Hardware
Pack. Be certain to remove all loose parts before discarding the carton. Follow instructions below to attach these loose
parts to your mower safely and properly for best performance.

Hardware Pack

Setup and
Adjustment

GROUP 2

GROUP 1

GROUP 6

Qty. 2

Qty. 4

GROUP 3

IMPORTANT
This unit is shipped
without gasoline or oil
in the engine. Fill up
gasoline and oil as
instructed in the engine
operation section
BEFORE operating
your mower.

Qty. 2

Qty. 4

Qty. 2

Qty. 4

Qty. 2

GROUP 5

GROUP 4

Qty. 4

Qty. 1

For ease-of-assembly, identify the pieces in the hardware pack according to the chart below:

Tools Required
•
•
•

Adjustable Wrench
1/2” Wrench
5/8” Wrench

•
•

7/16” Wrench
9/16” Wrench

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

NOTE: Reference to right, left, front and rear of the lawn
mower is in relation to the operating position.
Flange Lock Nut
Flat Washer

Attaching the Chute Deflector
NOTE: Use a 7/16” wrench and the hardware in Group 1
to complete the following steps.

Setup and
Adjustment

1. Align the holes on the chute deflector with the
corresponding holes on the deck surface.
2. Insert carriage bolts up through the underside of the
deck and through the chute deflector. See Figure 3-1.
3. Secure each bolt with a washer and lock nut.

Carriage Bolt

Attaching Handles
Figure 3-1

NOTE: Use an adjustable wrench, a 1/2” wrench and the
hardware in Group 2 to complete the following steps.

Lower Handle

1. Lift the rear of the deck and place it on a block of
wood to secure it.
2. Place the lower handle over the deck and align the
holes on the deck with the corresponding holes on
the handle.

IMPORTANT
This unit is shipped
without gasoline or oil
in the engine. Fill up
gasoline and oil as
instructed in the engine
operation section
BEFORE operating
your mower.

Flange Nut
Shoulder
Screw

3. Secure the lower handle to the deck using the hex
screws, shoulder screws, and flange lock nuts.
See Figure 3-2.

Upper Handle

Hex
Screw

1. Place the upper handle in position over the lower
handle keeping the blade control handle facing up.
2. Secure the upper handle to the lower handle using
the carriage bolts, lock washers, and lock nuts from
group 4 of the hardware pack. See Figure 3-3.

Figure 3-2

Carriage
Bolt

Flange Lock Nut
Lock Washer

Figure 3-3

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

3
Setup and
Adjustment

Attaching the Wheels
Wheel

NOTE: Use an adjustable wrench, 7/16” wrench and the
hardware in Group 3 to complete the following steps.

Deck

The holes in the deck provide three cutting heights. Use
corresponding holes when attaching all four wheels (i.e.
for the lowest cutting position, assemble each wheel
at the highest hole on the deck). Refer to the Cutting
Height Adjustment section for more information.

Shoulder
Screw

Lock
Nut

large
washer

small washer

Flange
Lock Nut

large washer

1. Secure each wheel to the deck as shown in Figure
3-4.
NOTE: The cupped side of each washer should be
pressed against the deck.

small
washer

Attaching the
Blade Control Handle

Shoulder Screw

Figure 3-4

NOTE: If the blade control is secured and in place
on the upper handle, you may skip the following three
steps. If, however, the blade control became displaced
either during shipping or during assembly, reattach it as
follows:

Straight End

1. Insert the curved end of the blade control into the
center hole located on the right side of the upper
handle. See Figure 3-5.

Curved End

2. Gently squeeze the blade control inward and insert
the straight end into the lower hole located on the left
side of the upper handle. See Figure 3-5.

3. Check to confirm that the blade control pivots freely
against the upper handle.

Attaching Blade-Brake Cable
Unwrap the blade-brake cable from the engine and route
the cable under the lower handle.
Figure 3-5

Attaching Z Fitting

1. To make it easier to attach the Z fitting, temporarily
remove the left side of the blade control as shown in
Figure 3-6.

Blade Control
Handle

2. Hook the Z end of the brake cable into the handle
from the outside to inside. See Figure 3-6.

Upper
Handle

3. Reattach the left side of the blade control.

Z fitting

Figure 3-6

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For Parts Call 606-678-9623 or 606-561-4983
Securing Blade-Brake Cable
NOTE: Use the hardware in Group 6 to complete the
following steps.
WARNING: The cable must be routed
properly to avoid contact with all sharp
edges and hot surfaces. Such contacts
damage the cable and render the
controls inoperative.
1. Press the stud found inside the snap fitting into the
hole found on the left side of the upper handle, as
shown in Figure 3- 7.

stud inside
snap fitting
Upper
Handle

Snap
Fitting

2. Secure the cable to the lower left handle with a cable
tie. See Figure 3-8. Trim off the extra length of the
cable tie.
Figure 3-7

Attaching Starter Rope
NOTE: Use a 7/16” wrench and the hardware in
Group 5 to complete the following steps.
1. Attach the eye bolt to the upper handle and loosely
thread the lock nut on to secure it. Do NOT tighten.
See Figure 3-9.

Lower
Handle

2. With the spark plug wire disconnected and grounded,
depress the blade control and pull the rope out of the
engine.
3. Loop the rope through the eye bolt. See Figure 3-9.

Cable Tie

4. Tighten the eye bolt to the handle using the lock nut.
DO NOT overtighten.

Cutting Height Adjustment

1. Remove the carriage bolts and related hardware from
the wheels. See Figure 3-10.

Figure 3-8

2. Reattach the wheels with carriage bolts at another
hole. Remember to attach ALL wheels at the same
relative position to ensure an even cut. Refer to
instructions for Attaching The Wheels earlier in this
section. For a higher cutting height, use the lower
hole on the deck. For a lower cutting height, use the
upper hole.

1
Flange
Lock Nut

Eye Bolt

low
medium

Figure 3-9

high

Figure 3-10

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3
Setup and
Adjustment

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

4
Operating
Your Lawn
Mower

Know Your Lawn Mower
Blade Control

Recoil Starter

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

Figure 4-1: The main components on the mower.

Now that you have assembled your lawn mower, it’s important to become aquainted with its controls and features.

Blade Control

Gas and Oil Fill-Up

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 the engine and
blade.

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

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

Recoil Starter
The recoil starter is attached to the right upper handle.
Stand behind the unit, depress blade control, and pull
the recoil starter rope to start the unit.

2. Service the engine with gasoline as instructed in the
engine manual. See engine manual for location of gas
and oil fill.
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.

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For Parts Call 606-678-9623 or 606-561-4983
WARNING: 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.

Starting Engine

Operating
Your Lawn
Mower

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.

1
3

1. 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.

Figure 4-2: To start mower, prime the engine, squeeze blade
control handle, and pull recoil starter.

NOTE: For the location of the primer on your mower,
refer to the engine manual shipped with your unit.

Using Your Lawn Mower

2. Standing behind the mower, squeeze the blade
control 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.

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

Be sure the lawn is clear of stones, sticks, wire, or other
objects which could damage the lawn mower or the
engine. Such objects could be accidently thrown by the
mower in any direction and cause serious personal injury
to the operator and others.
WARNING: If you strike a foreign object,
stop the engine. Remove wire from the
spark plug, thoroughly inspect the mower
for any damage, and repair the damage
before restarting and operating the mower. Extensive
vibration of the mower during operation is an
indication of damage. The unit should be promptly
inspected and repaired.

WARNING
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.

Operating Tips
• For best results, do not cut wet grass.
• New grass, thick grass, or wet grass may require a
narrower cut.
• For a healthier lawn, never cut more than one-third of
the total length of the grass.
• Your lawn should be cut in the fall as long as there
is growth.
• Adjust ground speed according to condition of lawn.

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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

Lubrication

• 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.
• 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 axle bolt and inner surface of
the wheel with light oil. See Figure 5-1.

Maintaining
Your Lawn
Mower

• Follow the accompanying engine manual for engine
lubrication schedule and instructions.

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.
Figure 5-1: Lubrication areas on the mower.

2. Tip mower so that it rests on the housing. Keep the
side with the air cleaner facing up. Hold mower firmly.

General Recommendations

WARNING: Never tip the mower more than 90
degrees in any directions 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.

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

WARNING: Always stop engine, disconnect
spark plug, and ground against engine
before cleaning, lubricating, or performing any kind
of maintenance on your machine.
• Always observe safety rules when performing
maintenance work.
• 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.

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

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.
1. Maintain oil level as instructed in engine manual.
2. 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.
3. 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.

NOTE: Do not use a pressure washer or garden hose
to clean the mower. These
may cause damage to the
engine. The use of water will
result in shortened life and
reduce serviceability.

4. 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.

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.
1. Disconnect spark plug wire from spark plug. Turn
mower on its side making sure that the air filter and
the carburetor are up.
2. Remove the bolt and the blade bell support which
hold the blade and the blade adapter to the engine
crankshaft. See Figure 5-2.
3. Remove blade and adapter from the crankshaft. See
Figure 5-2.

Figure 5-2: The blade and corresponding hardware.

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

Off-Season Storage

5. Remove blade from the adapter and balance on a
round shaft screwdriver for testing balance. 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 ground when the mower is in the operating
position. Make sure that the blade is aligned and
seated on blade adapter flanges.

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.

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.

www.mymowerparts.com

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.
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

8. Fuel valve (if equipped) closed.
9. Engine not choked (if equipped w/choke).

8.
9.

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

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

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

5.
6.
7.

Engine runs erratic

1.
2.
3.
4.

Blade control disengaged.
Spark plug wire disconnected.
Fuel tank empty or stale fuel.
Engine not primed (if equipped with
primer).
5. Faulty spark plug.
6. Blocked fuel line.
7. Engine flooded.

Trouble
Shooting

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

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.

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

7
Safety
Labels

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

WARNING
/2

PLA
CE

DEL

PLA
TE

HER

ER
H
DEAT
NJG
DA
Y OR ING PARTS.
R
U
N
T
I
A
T
S
O
U
R
HE
O

I
T
M
AVOID SER D FEET AWAY FRO HROWN BYASSES.
AN
N BE TSAFET Y GL ND.
A
C
• K E E P H AN D S
T
A
H
OU
J E CT S T
WEAR
A R E A R O PE S
• REMO VE OABNY DIRECTI ON.
THERS
E N O R O N O T MO W S L D O W N .
B L AD E IN
R
D
L
I
H
C
W H EN
A ND
. DO
• DO NOT MOW TION ON SLOPES S, NEVER UP DOWN ANDDS.
LD,
HIE Y.
S
AU
OK
• USE EXTRA C N 15˚ . MOW ACROOUR FE ET. LO BACKWAR RAILINGESDIATEL
A
Y
H
T
T
M
O
G
R
T
E
,
T
E
GREA
O L CE I M
M OV IN
W E R C LO S
N TR
NEVER PULL MO RE AND WHILE (BLADE COED, REPLA
G
S
B E H I N D BE F O
D EV I C E
DAMA

G . IF
S A FE T Y
RE AD OPERATOR' S MANUA L. KEEP AND WORKIN
E
DIS CHARGE COVER ETC. ) IN PLAC

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 020

26
5

4
20

17
19

25
7
6

16
27

15
23
22
12

21
1

20
14
10
11
13
9
8

www.mymowerparts.com

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

Ref.
No.

Part No.

Part Description

710-0654A Hex Ind. Washer Screw 3/8-16 x 1.0

782-0048

749-04037 Lower Handle

749-1092A

Upper Handle

747-1161A

Control Handle (Bail)

731-0872B Rear Flap

17098

Hinge Clip

710-1044

Screw 3/8-24 x 1.5” Group 8

736-0524B Blade Bell Support

748-0376C Blade Adapter

742-0640

Cutting Blade

731-0064

Discharge Chute

710-0932

Carriage Screw 1/4-20 x 1.0”

736-0173

Flat Washer

710-3008

Hex Screw 5/16-18 x .75”

712-04063 Flange Lock Nut 5/16-18

710-1205

Eye Bolt

710-0262

Carriage Bolt 5/16-18 x 1.5”

736-0119

Lock Washer

712-04064 Flange Lock Nut 1/4-20

734-1779

Wheel

738-0533

Shoulder Screw .498 x 1.635

736-0105

Bell Washer

712-04065 Flange Lock Nut 3/8-16

726-0157

Cable Tie

746-0946

Control Cable - 48.25”

746-0957

Control Cable - 37.25”

736-0331

Bell Washer

738-04033 Shoulder Screw, 5/16-18 x.428”

753-0588

Cutting Deck: 20”

Blade Adapter Kit (Incl. Ref. 8-10)

www.mymowerparts.com

8
Parts List

To order replacement
parts, contact
1-800-800-7310
or visit
www.mtdproducts.com

For Parts Call 606-678-9623 or 606-561-4983
NOTES
Use this page to make notes and write down important information.

www.mymowerparts.com

For Parts Call 606-678-9623 or 606-561-4983
NOTES
Use this page to make notes and write down important information.

www.mymowerparts.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 MTD LLC with respect
to new merchandise purchased and used in the United States, its
possessions and territories.
“MTD” warrants this product against defects in material and workmanship for a period of one (1) year 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 MTD 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 MTD LLC at P.O. Box 361131, Cleveland, Ohio 441360019, or call 1-800-800-7310 or 1-330-220-4683 or log on to our
Web site at www.mtdproducts.com.
This limited warranty does not provide coverage in the following cases:
a. 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.
b. Log splitter pumps, valves, and cylinders have a separate one year
warranty.
c. 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.

e. MTD does not extend any warranty for products sold or exported
outside of the United States, its possessions and territories, except
those sold through MTD’s authorized channels of export distribution.
f. Replacement parts that are not genuine MTD parts.
g. 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 MTD. 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. MTD 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.

d. Service completed by someone other than an authorized service
dealer.

MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019; Phone: 1-800-800-7310, 1-330-220-4683

www.mymowerparts.com

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20 020 Series Push 770 10419e

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