OWNEirS GUIDE
AMERICAN AMERICAN
MADE OWNED
OUTDOOR POWER EQUIPMENT
Important: Read Safety Rules and Instructions Carefully
Model Series
20" and 21 "
MULCHING
ROTARY MOWERS
105 thru 108
(Push)
130 thru 148
(Self-Propelled)
730 thru 738
(Push)
WARNING: This unit is equipped with an internal combustion engine and should not be used on or near any
unimproved forest-covered, brush-covered 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 avail
able through your nearest engine authorized service dealer or contact the service department, P.O. Box 368022,
"•N
Cleveland, Ohio 44136-9722.
MTD PRODUCTS INC • P.O. BOX 368022 • CLEVELAND, OHIO 44136-9722
PRINTED IN U.S.A. FORM NO. 770-8558J
IMPORTANT
THIS SYMBOL POINTS OUT IMPORTANT SAFETY lIJSTRUCTIONS WHICH, IF NOT FOLLOWED, COULD ENDANGER THE PERSONAL
SAFETY AND/OR PROPERTY OF YOURSELF AND )THERS. READ AND FOLLOW ALL INSTRUCTIONS IN THIS MANUAL BEFORE
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ATTEMPTING TO OPERATE YOUR LAWN MOWER. FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL
INJURY. WHEN YOU SEE THIS SYMBOL— ^ HELD ITS WARNING.
Your lawn mower was b lilt to be operated according to the rules for sate operation in this manual. As
DANGER:
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TRAINING
1. Read this owner’s guide carefully in its entirety before attempt
ing to assemble or operate this machine. Be compì 3tely famil
iar with the controls and the proper use of this mac line before
operating it. Keep this manual in a safe place for future and
regular reference and for ordering replacement parts.
2. Your rotary mower is a precision piece of power squipment,
not a plaything. Therefore, exercise extreme caution at all
times. Your unit has been designed to perform une job: to
mow grass. Do not use it for any other purpose.
3. Never allow children under 14 years old to operate a power
mower. Children 14 years old and over should only operate
mower under close parental supervision. Only psrsons well
acquainted with these rules of safe operation should be
allowed to use your mower.
4. Keep the area of operation clear of all persons, rarticularly
small children and pets. Stop engine when they are in the
vicinity of your mower to help prevent blade contac: or thrown
object injury. Although the area of operation shou d be com
pletely cleared of foreign objects, an object may have been
overlooked and could be accidentally thrown by th ; mower in
any direction and cause serious personal injury to t ie operator
or any others allowed in the area.
PREPARATION
1. Thoroughly inspect the area where the equipment is to be
used. Remove all stones, sticks, wire, bones and o her foreign
objects which could be picked up and thrown by tha mower in
any direction and cause serious personal injury to tie operator
or any others allowed in the area. Plan your mowing pattern to
avoid discharge of material toward roads, sidewalks,
bystanders and the like.
2. Always wear safety glasses or eye shields during operation or
while performing an adjustment or repair, to protec: eyes from
foreign objects that may be thrown from the mac line in any
direction.
3. Wear sturdy, rough-soled work shoes and close-filing slacks
and shirts. Shirts and pants that cover the arms and legs and
steel-toed shoes are recommended. Do not wear bose fitting
clothes or jewelry. They can be caught in moving [ arts. Never
operate a unit in bare feet, sandals, or sneakers.
4. Before working with gasoline, extinguish all cigare tes, cigars,
pipes and other sources of ignition. Check the fuel evel before
starting the engine. Gasoline is an extremely flammable fuel.
Do not fill the gasoline tank indoors, while the engine is run
ning, or until engine has been allowed to cool for it least two
minutes after running. Replace gasoline cap secure y and wipe
off any spilled gasoline before starting the enginu as it may
cause a fire or explosion.
5. Disengage the self-propelled mechanism or drivu clutch on
units so equipped before starting the engine.
6. The blade control handle is a safety device. Never attempt to
bypass its operation. Doing so makes the safety de rice inoper
ative and may result in personal injury through contact with the
rotating blade. The blade control handle must operite easily in
both directions and automatically return to the disengaged
position when released.
7. Never attempt to make a wheel or cutting height adjustment
while the engine is running.
8. Never operate the mower in wet grass. Always be ; ure of your
footing. A slip and fall can cause serious personal njury. Keep
a firm hold on the handle and walk, never run. N ow only in
daylight or in good artificial light.
with any type of power e iuipment, carelessness or error on the part of the operator can result in serious
injury. If you violate any i if these rules, you may cause serious injury to yourself or others.
SAFE OPERATION PRACTICES
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9. For your safety, use the slope gauge Included as part of this
rhanual to measure slopes before operating this unit on a
sloped or hilly area. If the slope is greater than 15° as shown
oh the slope gauge, do not operate this unit on that area or
serious injury could result.
. OPERATION
1. Do not change the engine governor settings or overspeed the
engine. Excessive engine speeds are dangerous.
2. Do not put hands or feet near or under rotating parts. Keep
clear of the discharge opening at all times as the rotating blade
can cause injury.
3. Stop the blade when crossing gravel drives, walks or roads.
4. After striking a foreign object, stop the engine, remove the wire
from the spark plug, and thoroughly inspect the mower for any
damage. Repair the damage before restarting and operating the
mower.
5. If the equipment should start to vibrate abnormally, stop the
engine and check immediately for the cause. Vibration is gen
erally a warning of trouble.
6. Shut the engine off and wait until the blade comes to a com
plete 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 rotat
ing.
7. Before cleaning, repairing or inspecting, make certain the blade
and all moving parts have stopped. Disconnect the spark plug
wire, and keep the wire away from the spark plug to prevent
'accidental starting.
8. Do not run the engine indoors.
9. Never cut grass by pulling mower toward you. Mow across the
face of slopes, never up-and-down. Exercise extreme caution
when changing direction on slopes. Do not mow excessively
steep slopes. Always be sure of your footing. A slip and fall can
cause serious personal injury.
10. Never operate mower without proper guards, plates or other
safety protective devices in place.
11. Muffler and engine become hot and can cause a burn. Do not
touch.
MAINTENANCE AND STDRAGE
1. Check the blade and engine mounting bolts at frequent inter
vals for proper tightness. Also visually inspect blade for dam
age (e.g. bent, cracked). Replace with blade which meets origi
nal equipment specifications.
2. Keep all nuts, bolts, and screws tight to be sure the equipment
is in safe working condition.
3. Never store the mower with gasoline in the tank or gas con
tainers inside of a building where fumes may reach an open
flame or spark (e.g. gas hot water heater). Allow the engine to
cool before storing in any enclosure.
4. To reduce fire hazard, keep the engine free of grass, leaves and
excessive oil.
5. Check the grass catcher bag frequently for wear or deteriora
tion. Replace a worn or damaged bag immediately. For safety
protection, replace only with new bag meeting original equip
ment specifications.
SET-UP INSTRUCTIONS
IMPORTANT: This unit is shipped WITHOUT GASO
LINE or OIL. Be certain to service engine with gaso
line and oil as instructed in the separate engine
manual before operating your mower.
NOTE: Reference to right or left hand side of the
mower is observed from the operating position.
HOW TO SET-UP YOUR LAWN MOWER
Refer to Illustration Below
1. Remove carton inserts (if any) and the side dis
charge chute which is loose in the carton. Lift the
mower from the carton, or cut the corners of the
carton and roll the mower out.
2. Remove any cardboard pieces which may be
between the upper and lower handles for ship
ping purposes. If there is any packaging (plastic
or cardboard) around the upper handle, remove
it.
3. Disconnect the spark plug wire and move it away
from the spark plug.
4. Pull up and back on the upper handle to raise the
handle into the operating position. Make certain
the lower handle is seated securely into the han
dle mounting brackets. Tighten the hand knobs
on each side of the handle.
NOTE: Your mower is shipped with the handie in the
higher height position. If you wish to lower the height of
the handle, refer to the Adjustment Section at this time.
Wing Nut Handle
Upper
Rope
Guide
Starter
Rope
Muiching
Piug
Handle
Rope
Guide
Lower
Handle
Blade Control
Remove the hairpin clips from the outer hole in
the weld pins on the handle mounting brackets.
Place the hairpin clips in the inner hole.
The rope guide and wing nut are attached to the
starter rope, on top of the engine. Remove the
wing nut from rope guide. Remove the rope guide
from the starter rope.
7.
With the spark plug’wire disconnected and
grounded, hold the blade control handle against
the upper handle, and pull the starter rope out of
the engine. Hold the rope guide as shown so the
opening in the rope guide is toward the front of
mower. Slip the rope guide around the starter rope
and into the right side of upper handle using the
hole shown. Secure using the wing nut.
8.
Make certain all nuts and bolts are tightened
securely.
Your mower has been shipped as a mulcher. To dis
charge grass to the side, proceed with step 9.
9. To convert your mower from a mulcher to a
side discharge mower, lift the mulching plug.
Slide the two hooks on the side discharge deflec
tor under the hinge pin on the mulching plug
assembly. Lower the mulching plug.
SELF-PROPELLED MODELS:
Handle
Mounting
Bracket
Lower
Handle
Hairpin Clip
in Inner
Weld
Pin
Hole
Handie
Mounting
Bracket
FIGURE 1.—Self-Propelled Model Shown
Spark
Plug
PUSH MODELS:
Hairpin
Clip in
inner Hoie
Weld
Pin
Lower
Handie
Handie
Mounting
Bracket
CONTROLS
I I
Blade
Control
Handle
Drive
Clutch
Control
Recoil
Starter
FIGURE 2.—Self-Propelled 6-Speed Model Shown
1 hrottle
Control
BLADE CONTROL HANDLE
WARNING: This controi mechanism is a
safety device. Never attempt to bypass
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The blade control handle is located on the upper han
dle of the mower. See figure 2. The blade control han
dle must be depressed in order to operate the unit.
Release the blade control handle to stop the engine
and blade.
its operations.
WARNING: The blade will be -otating
whenever the engine is running.
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WARNING: The throttle control cannot be
used to stop the engine.
▲
RECOIL STARTER
The recoil starter handle is attached to the handle.
See figure 2. Stand behind the unit in the operating
position to start the unit.
DRIVE CLUTCH CONTROL
(Self-Propelled Models Only)
Squeezing the drive clutch control engages the drive
mechanism to the rear wheels. Releasing the clutch
control stops the rear wheels from driving. Release
the drive clutch control to slow down when negotiating
an obstacle, making a turn or stopping. See figure 2.
SHIFT LEVER
The six speed shift lever is located on the drive clutch
control housing on the upper handle. See figure 2.
This lever is used to select the operating speed of the
mower. Release the drive clutch control when chang
ing speeds.
(Six Speed Models Only)
THROTTLE CONTROL
The throttle control is located on the left si(ie of the
upper handle. It is used to regulate the engimj speed.
OPERATION
TO REDUCE THE RISK OF INJURY, DO N
OPERATE MOWER UNLESS REAR TRAILII
SHIELD AND THIS GUARD OR ENTII
GRASS CATCHER IS IN ITS PROPER PLAC
KEEP HANDS and FEET AWAY
FIGURE 3.
Keep hands and feet away from the chute area on
cutting deck. See figure 3.
IMPORTANT: Move the shift iever ONLY when the
engine is running. Shifting the speeds with the
engine off can cause damage to the unit.
The operation of any lawn mower can result in for
eign objects being thrown into the eyes, which
can result in severe eye damage.
^sAFEnTGuisrej^ Always wear safety glasses or eye
shields. We recommend wide vision
safety mask for over spectacles or
standard safety glasses.
NOTE: For best results raise the cutting position until
it is determined which height is best for your lawn.
See cutting height adjustment section.
GAS AND OIL FILL-UP
Service the engine with gasoline and oil as
instructed in the separate engine manual. Read
instructions carefully.
WARNING: Never fill fuel tank Indoors,
with engine running or until the engine
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has been allowed to cool for at least two
minutes after running.