Operator's Manual
20" Mulching Push
Lawn Mower
MODEL 109
IMPORTANT: Read safety rules and instructions carefully before operating equipment.
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 available through your nearest engine authorized service dealer or contact the service department, P.O. Box 361131
Cleveland, Ohio 44136-0019.
MTDLLC,P.O.BOX361131CLEVELAND,OHIO44136-0019
PRINTED IN U.S.A.
FORM NO. 770-10074F
(10/2003)
TABLEOFCONTENTS
Content
Important Safe Operation Practices
Slope Gauge
Assembling Your Lawn Mower
Know Your Lawn Mower
Operating Your Lawn Mower
Making Adjustments
Page Content Page
3 Maintaining Your Lawn Mower 11
6 Off Season Storage 12
7 Trouble Shooting Guide 13
8 Illustrated Parts 14
9 Warranty 16
10
FINDINGMODELNUMBER
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.
Before you start assembling your new equipment, please locate the model plate on the
equipment and copy the information from it in the space provided below. A sample model plate is
also given below. 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 and/or help from the Customer Support Department or an authorized
service dealer.
Copy the model number here:
'_RD_BN)/_ MTD LLC
Www.yardman.com 330-220-4683
P. O. BOX 361131
CLEVELAND,0H 44136
800-800-7310
Copy the serial number here:
CUSTOMERSUPPORT
Please doNOTreturntheunitto the retailer fromwhereit waspurchased,withoutfirstcontactingCustomerSupport.
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 yardman.com for many useful suggestions. Click on Customer Support button and you
will get the four options reproduced here. Click on the appropriate button and help is
immediately available.
answer you are
]OOkirng for Could be jrust
a mouse c//cA awayf
If you prefer to reach a Customer Support Representative, please call 1-800-800-7310.
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answer are
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M nual
En ine
The engine manufacturer is responsible for all engine-related issues with regards 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.
SECTION1: IMPORTANTSAFEOPERATIONPRACTICES
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.
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 instruc-
tions could result in serious injury or death.
GeneralOperation
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 operation instructions and safety rules in
this manual and should be trained and supervised by a
parent. Only responsible individuals who are familiar with
these safe operation rules should 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 awall 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 the operator zone behind the handles and keep
bystanders, helpers, children and pets at least 75 feet
from the machine while it is in operation. Stop machine if
anyone enters the area.
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 the
cutting deck. Contact with the 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 took down and behind to avoid tripping
and then follow these steps:
a. Step back from the mower to fully extend your
arms.
b. Be sure you are welt balanced with sure footing.
c. Pull the mower back slowly, nomore than halfway
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 inwet 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 in daylight or good artificial light. Walk, never run.
17. Stop the blade when crossing gravel drives, walkways
or roads.
18. Ifthe equipment should start to vibrate abnormally, stop
the engine and check immediately for the cause.
Vibration is generally a warning of trouble.
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
othersafetyprotectivedevicesinplaceandworking.
Neveroperatemowerwithdamagedsafetydevices.
Failuretodoso,canresultinpersonalinjury.
21.Mufflerandenginebecomehotandcancauseaburn.Do
nottouch.
22.Onlyusepartsandaccessoriesmadeforthismachineby
theoriginalequipmentmanufacturer(O.E.M).Failureto
dosocanresultinpersonalinjury.
23.Ifsituationsoccurwhicharenotcoveredinthismanual,
usecareandgoodjudgment.Contactyourdealerfor
assistance.Telephone1-800-800-7310forthenameof
yournearestdealer.
SlopeOperation
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. Before operating this unit on a slope or hilly area, use
the slope gauge on page 6 to measure slopes. 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. Ifyou feel you are losing your
balance, release the blade control handle immediately,
and the blade will stop rotating within 3 seconds.
DoNot:
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.
Children
Tragic accidents can occur if the operator is not alert to the
presence of children. Children are often attracted to the
mower and the 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 the
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 the operation instructions and
safety rules in this manual and should be trained and
supervised by a parent.
Service
SafeHandlingOfGasoline:
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.
2. Wash your skin and change clothes immediately.
3. Use only an approved gasoline container.
4. Never fill containers inside a vehicle or on atruck or
trailer bed with a plastic liner. Always place containers on
the ground away from your vehicle before filling.
5. If possible, 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 atrailer with a
portable container, rather than from agasoline dispenser
nozzle.
6. 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.
7. Extinguish all cigarettes, cigars, pipes and other sources
of ignition.
8. Never fuel machine indoors because flammable vapors
wilt accumulate in the area.
9. Never remove gas cap or add fuel while the engine is hot
or running. Allow engine to cool at least two minutes
before refueling.
10. Never over fittfuel tank. Fill tank to no more than ½ inch
below bottom of filler neck to provide space for fuel
expansion.
11. Replace gasoline cap and tighten securely.
12. Ifgasoline is spilled, wipe it offthe engine and
equipment. Move unit to another area. Wait 5 minutes
before starting the engine.
13. Never store the machine or fuel container inside where
there is an open flame, spark or pilot light as on a water
heater, space heater, furnace, clothes dryer or other gas
appliances.
14. 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.
15. Allow a mower to cool at least 5 minutes before storing.
GeneralService:
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 inthis manual. "Use of parts which do not
meettheoriginalequipmentspecificationsmayleadto
improperperformanceandcompromisesafetyF
4. Mowerbladesaresharpandcancut.Wrapthebladeor
weargloves,anduseextracautionwhenservicingthem.
5. Keepallnuts,bolts,andscrewstighttobesurethe
equipmentisinsafeworkingcondition.
6. Nevertamperwithsafetydevices.Checktheirproper
operationregularly.
7. Afterstrikingaforeignobject,stoptheengine,disconnect
thesparkplugwireandgroundagainsttheengine.
Thoroughlyinspectthemowerforanydamage.Repair
thedamagebeforestartingandoperatingthemower.
8. Neverattempttomakeawheelorcuttingheight
adjustmentwhiletheengineisrunning.
9. Grasscatchercomponents,dischargecover,andtrail
exposemovingpartsorallowobjectstobethrown.For
safetyprotection,frequentlycheckcomponentsand
replaceimmediatelywithoriginalequipment
manufacturer's(O.E.M.)partsonly,listedinthismanual.
"Useofpartswhichdonotmeettheoriginalequipment
specificationsmayleadtoimproperperformanceand
compromisesafetyF
10.
Donotchangetheenginegovernorsettingoroverspeed
theengine.Thegovernorcontrolsthemaximumsafe
operatingspeedoftheengine.
11.
Maintainorreplacesafetyandinstructionlabels,as
necessary.
12.
Observeproperdisposaltawsandregulations.Improper
disposaloffluidsandmaterialscanharmthe
environment.
shieldaresubjecttowearanddamagewhichcould
YourResponsibility
• 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