Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty
OF A O AL
21" Rotary Mower- Model 44M
iMPORTANT
READ SAFETY RULES AND iNSTRUCTiONS CAREFULLY BEFORE OPERATION
Warning: Thisunit is equippedwithan internalcombustionengineandshouldnot beusedon or nearany unimprovedforest-covered,brush-
coveredor grass-coveredlandunlesstheengine'sexhaustsystemis equippedwitha sparkarrestermeetingapplicablelocalor statelaws(if any).
If a sparkarresteris used,it shouldbe maintainedineffectiveworkingorder by the operator.In theState of Californiathe aboveis requiredbylaw
(Section4442of the CaliforniaPublicResourcesCode).Otherstatesmayhavesimilarlaws.Federallawsapplyonfederallands.A sparkarrester
for the muffleris availablethroughyour nearestengineauthorizedservicedealeror contactthe servicedepartment,RO. Box361131Cleveland,
Ohio44136-0019.
PRINTEDIN U.S.A.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
FORMNO.769-02768
10/13/2006
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
Trouble Shooting .............................................. 12
Off Season Storage and Safety Labels ........... 13
Engine Appendix .............................................. 14
Engine Safe Operation Practices ................. 14
Operating Your Engine .................................. 16
Maintaining Your Engine ............................... 18
Parts List ........................................................... 22
Warranty ............................................. Back Cover
MTDLLCreservesthe rightto changeproductspecifications,designs,andequipmentwithoutnotice and withoutincurringobligation.
Finding and Recording Model Number
BEFOREYOU BEGINTO ASSEMBLEYOURNEW
EQUIPMENT,please locatethe model plateon the
equipmentand copy the informationto the sample
modelplate providedto the right.You can locatethe
model plateby standingat the operatingpositionand
lookingdownat the rear of the deck.This information
will be necessaryto use the manufacturer'sweb
site,to obtainassistancefrom the CustomerSup-
port Department,or when contactingan authorized
service dealer.
Model Number Serial Number
MTD LLC
P.O= BOX 361131
CLEVELAND, OH 44136
330-220-4683
www.mtdproducts.com 800-800-7310
Customer Support
Please do NOTreturn the unit to the retailer from which it was
purchased, without first contacting Customer Support.
If you havedifficulty assemblingthis productor haveany questions regardingthe controls,operation,or
maintenanceof this unit,you can seek helpfrom the experts. Choosefrom the optionsbelow:
= Visit www.mtdproducts.com
• Call a CustomerSupport Representativeat 1-800-800-7310.
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WARNING
This symbol points
out importantsafety
instructionswhich, if
notfollowed,could
endangerthe personal
i safety and/or property
I ofyourselfand others.
Readand follow all
instructionsinthis
manual beforeat-
temptingto operate
i this machine. Failure
I to complywith these
instructionsmay result
i in personalinjury.When
you see this symbol.
i HEED ITS WARNING!
i Your Responsibility
Restrictthe use
of this power machine
to personswho read.
i understand
and follow the warnings
and instructions
I.
=nthis manual
and on the machine.
WARNING: Engine Exhaust,some of its constituents, and certain vehicle compo-
nents contain or emit chemicals known to State of Californiato cause cancer and
birth defects or other reproductiveharm.
DANGER: This machine was built to be operated according to the rules for safe operation in this
manual. As with any type of powerequipment, 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
Tragicaccidentscan occur if operatoris notalert to presence
of children.Childrenare oftenattractedto mowerand mowing
activity.Theydo not understandthe dangers.Neverassume
thatchildrenwill remainwhereyou lastsawthem.
1. Keepchildrenout of the mowingareaand underwatchful
careof a responsibleadultotherthanthe operator.
2. Be alert andturn moweroff if a childentersthe area.
3. Beforeand while movingbackwards,look behindanddown
forsmallchildren.
4. Useextremecare when approachingblind corners,
doorways,shrubs,trees,or otherobjectsthat mayobscure
yourvisionof a child whomay run intothe mower.
5. Keepchildrenawayfrom hot or runningengines.Theycan
sufferburnsfrom a hotmuffler.
6. Neverallowchildrenunder14 yearsoldto operatea power
mower.Children14 yearsoldand overshouldreadand
understandoperationinstructionsandsafetyrulesin this
manualandshouldbe trainedandsupervisedbya parent.
General Operation
1. Readthis operator'smanualcarefullyin its entiretybefore
attemptingto assemblethis machine.Read,understand,
andfollowall instructionson the machineandin the
manual(s)beforeoperation.Be completelyfamiliar with
thecontrols andthe properuseof this machinebefore
operatingit. Keepthis manualin a safe place forfuture
and regularreferenceand for orderingreplacementparts.
2. Thismachineis a precision pieceof powerequipment,
nota plaything.Therefore,exerciseextremecautionat all
times.Yourunithas beendesignedto performonejob: to
mowgrass. Do notuse it for any other purpose.
3. Neverallow childrenunder 14yearsold to operatethis
machine.Children 14yearsold and overshould readand
understandthe instructionsinthis manualandshould
be trainedand supervisedby a parent.Onlyresponsible
individualswho arefamiliar withthese rulesof safe
operationshould be allowedto usethis machine.
4. Thoroughlyinspectthe areawherethe equipmentis to
be used. Removeall stones,sticks,wire, bones,toys
andother foreignobjects, whichcouldbe trippedover or
pickedup andthrown bythe blade.Thrownobjects can
causeseriouspersonalinjury.Plan your mowingpattern
to avoiddischargeof materialtoward roads,sidewalks,
bystandersandthe like.Also,avoiddischargingmaterial
againsta wall or obstruction,whichmay causedischarged
materialto ricochetback towardthe operator.
5. Tohelpavoid bladecontact ora thrown objectinjury,
stay inoperatorzone behindhandlesand keepchildren,
bystanders,helpersand petsat least 75 feetfrom mower
whileit is inoperation.Stop machineif anyoneenters
area.
6. Alwayswearsafetyglasses or safetygogglesduringopera-
tion andwhile performingan adjustmentor repairto protect
youreyes.Thrownobjectswhich ricochetcancauseserious
injuryto the eyes.
7. Wearsturdy, rough-soledworkshoesand close-fitting
slacksandshirts. Shirtsand pantsthatcoverthe arms and
legs andsteel-toedshoesare recommended.Neveroperate
this machinein bare feet,sandals, slipperyor light-weight
(e.g. canvas)shoes.
8. Do not puthands or feet near rotatingparts or undercutting
deck.Contactwithblade can amputatehands andfeet.
9. A missingor damageddischargecovercan cause blade
contactor thrownobject injuries.
10.Manyinjuriesoccuras a resultof the mowerbeing pulled
overthefoot duringa fall causedby slippingor tripping.
Do nothold on to the mower if you are falling;releasethe
handle immediately.
11.Neverpullthe mowerbacktowardyou whileyou are
walking.If you must backthe mowerawayfrom a wall or
obstructionfirst look downand behindto avoid trippingand
thenfollowthese steps:
a. Stepback from mowerto fully extend yourarms.
b. Be sure youare well balancedwith surefooting.
c. Pullthe mowerbackslowly,no morethan half way
toward you.
d. Repeatthesestepsas needed.
12.Do notoperatethe mowerwhileunderthe influenceof
alcoholor drugs.
13.Do notengagetheself-propelledmechanismon unitsso
equippedwhilestartingengine.
14.The bladecontrol handle is a safetydevice.Neverattempt
to bypassits operation.Doingso makesthe safetydevice
inoperativeandmay result in personalinjurythrough
contactwith the rotatingblade. The bladecontrol handle
mustoperateeasily in bothdirectionsandautomatically
returnto the disengagedpositionwhen released.
15.Neveroperatethe mowerinwet grass. Alwaysbe sure of
yourfooting. A slipand fall can causeseriouspersonal
injury.If youfeel you are losing yourfooting,releasethe
bladecontrol handle immediatelyand the bladewillstop
rotatingwithinthreeseconds.
16.Mowonly in daylightor good artificial light. Walk,never run.
17.Stopthe bladewhencrossinggraveldrives, walksor roads.
18.If the equipmentshouldstartto vibrateabnormally,stop the
engineand check immediatelyfor the cause.Vibrationis
generallya warningof trouble.
4
19.Shutthe engineoff and waituntil the bladecomesto a
completestop beforeremovingthe grasscatcheror unclog-
gingthe chute.
The cutting bladecontinuesto rotatefora few secondsafter
the engineis shut off. Neverplace any partof the body in
the bladeareauntil you are surethe bladehas stopped
rotating.
20.Neveroperate mowerwithoutpropertrail shield, discharge
cover,grasscatcher,bladecontrol handle or othersafety
protectivedevicesin placeand working.Neveroperate
mowerwith damagedsafetydevices.Failureto do so can
result in personalinjury.
21.Mufflerand enginebecomehotandcan causea burn.Do
nottouch.
22.Only use parts andaccessoriesmade forthis machineby
manufacturer.Failureto do so can resultin personalinjury.
23. Ifsituationsoccur whichare not coveredinthis manual,
use care and goodjudgment.Contactyour dealer for
assistance.
Slope Operation
Slopesare a majorfactor relatedto slip andfall accidents,which
can result insevereinjury.Operationon slopes requiresextra
caution.If youfeel uneasyon a slope,do notmowit. Foryour
safety,use theslope gaugeincludedas part of this manualto
measureslopesbeforeoperatingthis uniton a slopedor hilly
area.Ifthe slopeis greaterthan 15 degrees,do not mow it.
Do:
1. Mow acrossthe faceof slopes;neverupand down.Exercise
extremecautionwhenchangingdirectionon slopes.
2. Watchfor holes,ruts, rocks,hidden objects,or bumps
which can causeyouto slipor trip. Tallgrasscan hide
obstacles.
3. Alwaysbe sure of yourfooting.A slipand fallcan cause
serious personalinjury.If youfeel you are losingyour
balance,releasethe bladecontrol handle immediately,and
the bladewill stoprotatingwithin3 seconds.
Do Not:
1. Do notmow near drop-offs,ditchesor embankments,you
could loseyourfooting or balance.
2. Do not mow slopes greaterthan 15degreesas shown on
the slopegauge.
3. Do not mow on wet grass. Unstablefooting could cause
slipping.
Service
Safe Handling Of Gasoline:
1. Toavoidpersonalinjuryor propertydamageuse extreme
care in handlinggasoline.Gasolineis extremelyflammable
and the vapors are explosive.Serious personalinjury can
occur when gasolineis spilled on yourselfor your clothes,
which can ignite.Washyourskin andchangeclothes
immediately.
2. Use onlyan approvedgasolinecontainer.
3. Neverfill containersinside a vehicleor ona truck ortrailer
bed witha plasticliner.Alwaysplacecontainerson the
ground awayfrom yourvehicle beforefilling.
4. Removegas-poweredequipmentfrom the truckor trailer
and refuel it on theground. If this is not possible,then refuel
such equipmenton atrailer witha portable container,rather
than from a gasolinedispensernozzle.
5. Keepthe nozzlein contactwiththe rimof the fuel tank or
containeropeningat all timesuntilfueling is complete.Do
not use a nozzle lock-opendevice.
6. Extinguishallcigarettes,cigars, pipesand othersources
of ignition.
7. Neverfuel machineindoorbecauseflammablevapors will
accumulatein thearea.
8. Neverremovegas cap or add fuel whileengine is hot or
running. Allowengineto cool at least two minutesbefore
refueling.
9. Neveroverfill fuel tank. Fill tankto no morethan Y2inch
below bottomof filler neckto providefor fuel expansion.
10.Replacegasoline cap andtighten securely.
11.If gasolineis spilled,wipe it off theengine and equipment.
Moveunit to another area.Wait 5 minutesbeforestarting
engine.
12.Neverstorethe machineorfuel containernear an open
flame,sparkor pilot light as on a water heater,space
heater,furnace, clothesdryeror othergas appliances.
13.Toreducefire hazard,keepmowerfree of grass, leaves,
orother debrisbuild-up.Clean up oil orfuel spillageand
removeany fuel soakeddebris.
14.Allow a mowerto cool at least5 minutesbeforestoring.
General Service:
1. Neverrun an engine indoorsorin a poorlyventilatedarea.
Engineexhaustcontainscarbonmonoxide,an odorless
anddeadlygas.
2. Beforecleaning,repairing,or inspecting,makecertainthe
bladeandall movingparts havestopped.Disconnectthe
sparkplugwire andgroundagainstthe engineto prevent
unintendedstarting.
3. Checkthe bladeandengine mountingbolts atfrequent
intervalsfor propertightness.Also,visuallyinspectblade
fordamage(e.g.,bent,cracked,worn) Replacebladewith
theoriginalequipmentmanufacture's(O.E.M.)bladeonly,
listedin this manual."Useof partswhichdo not meetthe
originalequipmentspecificationsmayleadto improper
performanceand compromisesafety!"
4. Mowerbladesare sharp andcan cut.Wrapthebladeor
weargloves,anduse extracautionwhen servicingthem.
5. Keepall nuts,bolts, andscrewstightto be surethe equip-
mentis in safeworkingcondition.
6. Nevertamperwithsafetydevices.Checktheir proper
operationregularly.
7. Afterstrikinga foreignobject,stop the engine,discon-
nectthe sparkplugwire andgroundagainsttheengine.
Thoroughlyinspectthe mowerfor any damage.Repairthe
damagebeforestartingandoperatingthe mower.
8. Neverattemptto makea wheelor cuttingheightadjust-
mentwhile the engineis running.
9. Grasscatchercomponents,dischargecover,andtrail
shield aresubjectto wear anddamagewhichcould
exposemovingparts or allowobjectsto be thrown.For
safetyprotection,frequentlycheck componentsand re-
placeimmediatelywith original equipmentmanufacturer's
(O.E.M.)parts only, listedin this manual."Useof parts
whichdo notmeetthe originalequipmentspecifications
maylead to improperperformanceand compromise
safety!"
10.Do notchangetheenginegovernorsettingor over-revthe
engine.The governorcontrolsthe maximumsafe operating
speedof theengine.
11.Maintainor replacesafetylabels,as necessary.
12.Observeproperdisposallawsand regulations.Improper
disposalof fluidsand materialscanharmthe environment.
Practices
WARNING
This symbol points
out important safety
instructions, which if
not followed, could
endangerthe personal
safety and/or property
of yourselfand others.
Readand follow all
instructions in this man-
ual before attempting to
operate this machine.
Failureto comply with
these instructionsmay
result in personal injury.
When you see this
symbol.
HEED iT'S WARNING!
Your Responsibility
Restrictthe use
of this power machine
to persons who read.
understand
and follow the warnings
and instructions
in this manua
and on the machine.
5
NOTE:Standbehind
themowerasifyou
weregoingtooperate
it.Yourrighthandcor-
respondstotheright
sideofthemower;your
lefthandcorresponds
totheleftsideofthe
mower.
NOTE:Forshipping
purposesyourmower
issetwiththewheels
ina lowcuttingheight
position.Forbest
I resultsraisethecutting
positionuntilit isdeter-
minedwhichheightis
bestforyourlawn,refer
toAdjustmentsection
forinstructions.
iMPORTANT
Thisunitisshipped
withoutgasolineoroil
intheengine.Fillup
gasolineandoilas
i instructedintheengine
operationsection
BEFOREoperating
i yourmower.
Figure3-1:Unfoldhandleand tightenhardware.
HardwarePack
Wing Nuts (2) Carriage Bolts (2)
1. Followthe stepsbelowto positionthe handle.
a. Liftthe upper handleup from the foldedposition
andpullit backto the extendedposition.See
Figure3-1.Donot crimpcables.Thehandle
shouldclick into this position.
b. Makesurethe carriageboltis seatedproperlyin
the handle.Tightenstar knobsto secure upper
handleto the lowerhandle.
2. Followthesestepsto securethe handle:
a. Removethe hairpinclipfromthe pivotrod. Usinga
pairof pliers, inserthairpinclip intothe otherhole
onthe rod.Repeaton otherside. SeeFigure3-2.
b. Inserta carriagebolt fromthe hardwarepackinto
the upperhole on the handle mountingbracket.
Securewithone plasticwing nut,also includedin
the hardwarepack. Repeaton otherside.
3. The ropeguide is attachedto the right sideof the
upperhandle.Loosenthe wingnut which securesthe
ropeguide.Referto Figure3-3.
a. Holdthe bladecontrolagainstupperhandle.
b. Pullstarterropeout of the engine.Releasethe
bladecontrol.
.
c. Slipstarterropeinto ropeguide.
d. Tightenwingnut.
Securecablesto the lowerhandle usingthe cable
ties.See Figure3-4. insertpostsoncable tiesinto
holesprovidedonthe lowerhandle.Pullcableties
tightandtrimexcess.
Figure3-2:Securehandleto handlemountingbrackets.
Figure3-3:Pullrecoilstarterthroughropeguideandtighten.
!
Figure3-4:Usecabletiestosecurecablestolowerhandle.
6
5. Followstepsbelowto assemblethe grasscatcher:
a. Placebagoverframesothat itsblackplasticside
is at the bottom.Checkthat the bag is turnedright
side out beforeassembling(warninglabelwill be
on the outside).SeeFigure3-5.
b. Slip plasticchannelof grassbagoverhooksonthe
frame.Allthe plasticchannelsexceptcentertop of
bagattachfromoutsideof bag.
c. Attachcentertop of bagfrominsideof bag.
6. Toattachthe grasscatcher:
a. Liftreardischargedoor.SeeFigure3-6.
b. Placegrasscatcheron thepivotrod. Letgo
of dischargedoor sothat it restson thegrass
catcher.
Adjustments
Cutting Height
An adjustingplateandthumbleverat each wheel
providescuttingheightadjustment.Eachlevermustbe
movedto the same positionto ensurean evencut.
1. Pullthe leverout and awayfromthe mower.See
Figure3-7.
2. Movetheleverforwardor backfor desiredcutting
height.
3. Releaselevertowardsmowerdeck.
Figure3-5:Assemblethe grasscatcher(if needed)
ustment
WARNING
nless the hooks on
; grass catcher are
rrnly seated onthe
pivot rod and the rear
discharge door rests
firmly against top of
the grass catcher,
Figure3-6:Attachthegrasscatcher.
Figure3-7:Useleverateachwheelto adjustcuttingheight.
7
cuTTING HEIGHT:
Forroughoruneven
lawnsl move the height
adjustment leverto a
higher positionl Thiswill
help prevent scalping of
i _._ :_i_ii_\!_i_ii_i ¸
WARNING
Thebladecontrolisa
safetydevice. Never
attempttobypass its
operations.
Use extremecare
when handling
gasoline. Gasoline is
extremely flammable
i themachineindoors
i orwhiishotorrunning.letheengine
Extinguishcigarettes,
cigars,pipesand
othersourcesof
ignition.
i
i Keep hands and feet
_ away from thechute
i areaon cutting deck.
Referto warning
label on theunit.
Drive
Control
Recoil Starter
Blade Control
Control
Cutting
Height
Adjustment
Lever(one at
each wheel)
J
Figure4-1:Themaincomponentsonthemower.
Nowthatyou havesetupyour lawnmower,it's importantto becomeacquaintedwith its controlsand features.
Blade Control
Thebladecontrolis attachedto the upperhandleof
the mower,Depressand squeezeit againstthe upper
handleto operatethe unit, Releaseit to stop engineand
blade.
_ aWARNING:safetydevice. Never attempt toThis blade controlmechaniSmbypassitsiS
operations.
Drive Control
Thedrivecontrolislocatedon the undersideof the
upperhandleand is usedto engagethe drive.Squeeze
it againstthe upper handleto engagethedrive; release
it to slow downor stopmowerfrompropelling.
Cutting Height Adjustment Levers
Oneadjustmentleveris locatedat eachwheelandis
usedto adjustthe cuttingheight.All fourlevers mustbe
movedto the samepositionto ensurea uniformcut.
Recoil Starter
The recoilstarteris attachedto the rightupper handle.
Standbehindthe unitand pullthe recoilstarterropeto
startthe unit.
Choke Control
Thechokecontrolis locatedonthe left sideof the handle
andwhenactivated,closesthe chokeplateon the
carburetorandaidsin startingthe engine,
Gas and Oil Fill-Up
1. Addoil providedbeforestartingunitfor the firsttime
out d the box.Followengineoperationsectionfor
this.See Figure44 abovefor locationd the oil fill.
2. Servicethe enginewith gasolineas instructedin the
engineoperationsection. SeeFigure4-1abovefor
locationd gas fill.
,_ WARNiNG:gasoline.GasolineUSeextremeisextremelyCarewhenhandlingflammaMe
and the vapors are explosive. Never fuel the machine
indoors or while the engine is hot or running. Extin-
guish cigarettes, cigars, pipes andother sources of
ignition.
8
_ ARNING:The operationof any lawnmower
can result in foreign objects beingthrown
intothe eyes,whichcan damageyoureyes severely.
Alwayswear safetyglasseswhileoperatingthe
mower,or while performingany adjustmentsor
repairson it.
Starting Engine
_ WARNING:Be sureno one otherthanthe op-
erator is standingnearthe lawn mower while
startingengineoroperatingmower.Never
run engineindoorsor in enclosed,poorly ventilated
areas.Engine exhaustcontainscarbon monoxide, an
odorlessand deadly gas. Keephands,feet, hair and
looseclothing awayfrom any movingpartson engine
and lawnmower.
,d_! WARNING:Alwayskeep handsand feet clear
of equipmentmoving parts.Do not use a pres-
surized starting fluid. Vapors are flammable.
1. Pullout the chokeknob locatedon the left sideof the
upperhandle,See Figure4-2,
NOTE: Useof the chokemay not be necessaryif the
engineis warmor theair temperatureis high.
2. Standingbehindthe mower,depressthe bladecontrol
and holdit againstthe upperhandle.
3. Pullthe startergriplightlyuntilresistanceis felt,
then pull rapidlyto overcomecompression,prevent
kickbackandstartengine.Repeatif necessary.See
Figure4-2.
IMPORTANT:Donot allowthe startergrip to snap
backagainstthe rope guide.Returnit gentlyto prevent
damageto the starter.
4. Whenenginewarmsup,push inthe chokeknob.See
Figure4-2.
Stopping Engine
1. Releasebladecontrolto stop theengineand blade.
Using Your Lawn Mower
_ik ARNING:Neveroperate yourmower without
either the rear door or the entire grass catcher
assembly firmly secured.
Besurelawnisclearof stones,sticks,wire,or other
objectswhichcoulddamagelawnmowerorengine.
Such objectscouldbe accidentlythrownby the mower
in anydirectionandcauseseriouspersonalinjuryto the
operatorandothers.
Figure4-2:Stepsto start mower.
_ ARNING:if you strike a foreign object,
stopthe engine.Removewirefrom the spark
plug,thoroughly inspectmower for any damage,
and repair damage before restarting and operating.
Extensive vibration of mowerduring operation is an
indicationof damage.The unit should be promptly
inspectedand repaired.
1. Oncethe engineis running,squeezethedrive
controlto propel mower.For best results,do not cut
wetgrassand nevercutoff morethanone-thirdof
the total lengthof thegrass.
Using as Mulcher
Formulchinggrass,removethe grasscatcherfrom the
mower.Thereardischargedoorshouldbeclosed.
• Foreffectivemulching,do notcut wet grass.
• Newor thick grassmay requirea narrowercut.
Adjustgroundspeedaccordingto conditionof lawn.
• if thegrasshas beenallowedto growin excessof
fourinches,mulchingis not recommended.Usethe
grasscatcherto bagclippingsinstead.
Using Grass Catcher
Youcan usethe grass catcherto collectclippingswhile
youareoperatingthe mower.
1. Attachgrasscatcherfollowinginstructionsinthe
Setupsection.Grassclippingswillautomatically
collectinbagas you runmower.Operatemowertill
grassbagis full.
2. Stopenginecompletelyby releasingthe blade
control.Makesurethatthe unithas cometo a
completestop.
3. Liftdischargedoorand pull grass bagup and away
fromthe mowerto disposeof the grass clippings.
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 operat-
ing 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 in-
doors or in enclosed,
poorly venti-
lated 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.
9
Your Lawn
WARNING
A ,vaysstopeng,"e;
disconnectspark
plug, andground
against engine before
cleaning,lubricating
or doing any kind of
maintenanceon your
machinel
NOTE: Do not use a
pressure Washeror
garden hose t0 clean
y0ur uniL Thesemay
cause damage to
electric components;
spindles pulleys bear:
ings 0rthe enginel The
use of Wate[will result
in shortened life and
reduce serviceability.
Lubrication
• Lubricatepivot pointson thebladeanddrivecontrol
at least oncea seasonwithlightoil. Thecontrolsmust
operatefreely in both directions.See Figure5-1.
• Lubricatethe wheelsat least oncea seasonwith
lightoil (or motoroil). If wheelsare removedfor any
reason,lubricatesurfaceof the pivotarm and inner
surfaceof thewheelwithlight oil.
Lubricatethe torsionspringandpivotpointonthe rear
dischargedoorperiodicallywithlightoil to prevent
rust.
• Thetransmissionis pre-lubricatedand sealedat the
factoryanddoes not requirelubrication.
Followtheenginemaintenancesectionfor lubrication
scheduleandinstructionfor enginelubrication.
Figure5-1:Areasto lubricateon mower.
Deck Care
J
Figure5-2:Cut wireto removerear flap.
,_ WARNING:Nevertip the mower more than 90°
in any direction and do not leavethe mower
tipped for any length of time. Oil can drain intothe
upper partof the engine causing a starting problem.
1. Disconnectsparkplug wire. Draingasolinefromlawn
mower,or placea pieceof plasticunderthe gas cap.
2. Tip mowersothat it restsonthe housing.Keepthe
sidewiththe air cleanerfacingup. Hold mowerfirmly.
3. Scrapeand cleanthe undersideof the deck with a
suitabletool.Do notspraywithwater.
4. Putthe mowerbackonits wheelsonthe ground.If
youhad putplasticunderthe gas capearlier,make
sureto removeit now.
General Recommendations
• Alwaysobservesafetyruleswhen performing
anytypeof maintenance.
• Thewarrantyon thislawnmowerdoesnot cover
itemsthathavebeensubjectedto operatorabuse
ornegligence.To receivefull valuefromwarranty,
operatormustmaintainthelawn moweras
instructedhere.
• Changingof engine-governedspeedwill void
enginewarranty.
• All adjustmentsshouldbe checkedat leastonce
eachseason.
• Periodicallycheckallfastenersand makesurethese
aretight.
Engine Care
• Maintainoil levelas instructedin the enginemainte-
nancesection.
Serviceaircleanerevery25 hoursundernormal
conditions.Cleaneveryfewhoursunderextremely
dustyconditions.Referto the enginemaintenance
section.
Cleansparkplugand resetthegaponce a season.
Checktheenginemaintenancesectionfor correct
plugtypeandgap specifications.
• Cleanengineregularlywith a clothorbrush.Keepthe
coolingsystem(blowerhousingarea) cleanto permit
properaircirculation.Removeall grass,dirt and
combustibledebrisfrommufflerarea.
_1 ARNING:Alwaysstop engine,disconnect
sparkplug,and groundagainst engine
before performingany type of maintenance on your
machine.
Replacing Rear Flap
1. Toremoverearflap,cut off the flat end of the wire rod
whichsecuresit to the deck.See Figure5-2.
2. Attachthe newflapand newrod to deck, bendingthe
endsof the new rodoverto secureto deck.
10
=,
Blade Care
_ ARNING:Whenremovingcuttingblade
for sharpeningor replacement,protectyour
handswith a pairof heavygloves or use a heavyrag
to holdblade.
1. Disconnectsparkplugwirefromsparkplug.Turn
moweron itsside makingsurethatthe airfilterand
the carburetorare up.
2. Removebolt,bellbladesupport,blade,and blade
adapterfrom the enginecrankshaft.See Figure5-3.
3. The bladecan be sharpenedwith a fileor on a
grindingwheel.Donot attemptto sharpenthe blade
while it is still on the mower.Whensharpeningblade,
followoriginalangleof grind. Removemetalfrom the
heavysideandgrindcuttingedgesequallyto keep
bladebalanced.Balancethe blade on a round shaft
screwdriverto checkfor balance.
_ ARNING:Anunbalanced bladewill cause
excessivevibrationwhen rotating at high
speeds.It may causedamageto mower,and could
break causingpersonal injury.
4. Lubricatetheenginecrankshaftandthe inner surface
of the blade adapterwith lightoil. Slide the blade
adapteronto the enginecrankshaft.Placethe blade
on theadaptersuch thatthe sideof the blademarked
"Bottom"(or with part number)facesthe groundwhen
the mowerisin the operatingposition.Makesurethat
bladeis alignedand seatedon bladeadapterflanges.
5. Placebladebell supporton the blade.Align notches
on the bladebell supportwith smallholesin blade.
Replacehex boltandtightenhex boltto torque:450
in.Ibs. rain.,600 in.Ibs.max.
Toensuresafeoperationof yourmower,periodically
checkthe bladeboltfor correcttorque.
Changing the Belt
1. Removetwoshoulderscrewssecuringfrontdrive
coverto mowerdeck.Referto Figure5-4. Press
inwardonsidesof frontdrivecoverand releasetabs
that secureitto the heightadjusterbrackets.Remove
drivecoverfrommower.
.
.
.
Loosenscrewholdingbelttensionspringto
transmission.SeeFigure5-4. Do not removescrew
completely.As youloosenit,tensionon the belt will be
released.
Pushtransmissionup a littleandslidebelt offthe
transmissionpulley.Lift mowerto accessbeltfrom
undersideof mower.Slide beltoff of enginepulleyand
aroundthe blade.SeeFigure5-5.
Replacewithnewbelt,workingaroundblade.Make
sure belt isfirmly seatedon enginepulleywhilepulling
fromthe othersideand slidingit aroundthetransmis-
sion pulley.Tightenscrewloosenedearlierto secure
belt tensionspringto the transmission.Reassemble
frontdrivecover.
f
J
Figure5-3:Removebladeandrelatedhardware.
Figure5-4:Removecoverandloosentransmissionscrew.
f
Figure5-5:Removebeltfromaroundblade.
WARNING
When removing
the cutting blade
for sharpening or
replacementor
when sliding the belt
around it, 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 rotat=
ing at high speeds. It
may cause damage
to mower, and could
break causing per-
sonal injury.
11
Trouble
For repairs beyond
the minor adjust'
ments listed here,
contact an authorized
service
i ¸
Problem Cause Remedy
Enginefal s to stat'l r 1....Bade contro d sengaged 1 Engagebade contro
2. Sparkplugbootdisconnected• 2. Connectwire tosparkplug•
3. Fue tankemptyor stalefuel. 3. Filltankwithclean,freshgasoline•
4. CHOKEnotactivated, 4. Chokeengineas instructedin
"OperatingYourLawnMower•
5 Faultyspark plug. 5• Clean,adjust gap,or replace•
6, Blockedfuel line. 6. Cleanfuel line.
7. Engineflooded• 7, Waita fewminutesto restart•
Engineruns erratic 1. Sparkplug bootloose. 1. Connectand tightenspark
plugboot.
2. Blockedfuel lineor stalefuel. 2. Cleanfuel line;fill tank with clean,
freshgasoline.
3. Ventingas cap plugged. 3. Clearvent.
4. Waterordirt infuel system. 4. Drainfuel tank. Refillwith
freshfuel.
5. Dirty air cleaner. 5. Referto enginemaintenance
section.
6. UnitrunningwithCHOKEapplied. 6. PushCHOKEknob in.
Engine overheats I 1, Engineoil levellow. 1. Fillcrankcasewithproperoil.
Occasional skips 1. Sparkplug gap too close. 1. Adjustgap to .030".
(hesitates) at
high speed
Idles oorl 1 Sparkpug foued fau ty or gap 1 Resetgap to 030" or repace
P Y • . .
toowide. sparkplug.
I 2. Dirty air cleaner. 2. R:;_rotnO" enginemantenance
Excessive 1. Cuttingbladelooseor unbalanced. 1. Tightenbladeand adapter.
Vibration Balanceblade.
2. Bentcuttingblade. 2. Seean authorizedservicedealer.
Mower will not I 1. Wetgrass. 1. Donot mowwhengrassis wet;
mulch grass (If I waituntil laterto cut
Equipped) 2. Excessivelyhighgrass. 2. Mowonceat a highcuttingheight,
then mowagain at desiredheight
I or makea narrowercuttingpath•
3 Dull blade
• " 3. Sharpenor replaceblade•
Unevencut 1. Wheelsnot positionedcorrectly. 1. Placeall fourwheelsinsame
heightposition.
2. Dull blade. 2. Sharpenor replaceblade.
Mower w not 1. Belt notinstalledproperly. 1. Checkbeltfor properpulleyinstal-
If r I at on and movement
se pope
2. Debriscogging driveoperation, 2. Stopengine,disconnectspark plug
bootandcleanout debris•
' 3. Damagedorworn belt. 3. Inspectand replacebelt.
12
S".............
Off=Season Storage 4. Coatmower'scuttingbladewithchassisgreaseto
The followingstepsshouldbetakento prepareyour lawn
mowerfor storage.
1. Cleanandlubricatemowerthoroughlyas describedin
the lubricationinstructions.
2. We do not recommendthe useof a pressurewasher
or gardenhoseto cleanyour unit.
3. Referto enginemanualfor correctengine
storageinstructions.
preventrusting.
5. Storemowerina dry,cleanarea. Donot storenext
to corrosivematerials,suchas fertilizer.
Whenstoringanytypeof powerequipmentin a poorly
ventilatedor metalstorageshed,careshouldbetaken
to rust-prooftheequipment.Usinga lightoil or silicone,
coattheequipment,especiallycablesand all moving
partsof yourlawnmowerbeforestorage.
Safety Labels Found On Your Lawn Mower
REPLACEIMMEDIATELY.
J Engines emit carbon monoxide. DO NOT run in enclosed |
• _',3_ J aroa. ,)
WARNING
DO NOT remove safety
(or any) labels from
mower for any reason.
13
WARNING
Gasolineanditsvapors
areextremelyflammable
andexplosive. Fireor ex-
plosioncancausesevere
burns or death. If gasoline
is spilledon yourselfor
yourclothes,washyour
skinand changeclothes
immediately.
Startingenginecreates
sparking.Sparkingcart
ignitenearby flammable
gases.Explosionand fire
couldresult.
Unintentional sparking
can result in fire or elec-
tric shock. Unintentional
start-upcan resultin
I entanglement,traumatic
amputation, or laceration.
WARNING: Gasoline and itsvapors are extremely flammable and explosive. Fire or
explosion can cause severe burns or death. If gasoline isspilled on yourself or your
clothes, wash your skin and change clothes immediately.
Gasoline and its vapors are
extremely flammable and
explosive. Fire or explosion can
cause severe burns or death. If
gasoline is spilled on yourself
or your clothes, wash your skin
and change clothes immediately.
o
o
o
Whenaddingfuel,turnengineOFFandlet engine
coolat least2 minutesbeforeremovinggas cap.
Fill fueltankoutdoorsor inwellventilatedarea.
Useonlyanapprovedgasolinecontainer.
Neverfill containersinsideavehicleor ona truck or
trailerbedwitha plasticliner.Alwaysplacecontain-
ers on the groundawayfrom yourvehiclebefore
filling.
• If possible,removegas-poweredequipmentfromthe
truckor trailerand refuelit on theground.If this is
not possible,then refuelsuch equipmenton a trailer
witha portablecontainer,ratherthan froma gasoline
dispensernozzle.
Keepthe nozzlein contactwiththe rimof thefuel
tankorcontaineropeningat alltimesuntilfueling is
complete.Do notuse a nozzlelock-opendevice.
Do notoverfillfuel tank. Filltankto approximately
2 cmbelowlowestportionof neckto allowfor fuel
expansion.
Keepgasolineawayfrom sparks,open flames,pilot
lights,heat,andother ignitionsources.
Neverfuelequipmentindoorsbecauseflammable
vaporswill accumulatein the area.
Extinguishall cigarettes,cigars,pipes,andother
sourcesof ignition.
Checkfuelline,tank, cap, andfittingsfrequentlyfor
cracksor leaks.Replaceif necessary.
Whenstartingengine,makesuresparkplug,muffler,
fuelcap andaircleanerarein place.
Do notcrankenginewithsparkplugremoved.
If fuelspills,wait untilit evaporatesbeforestarting
engine.
Whenoperatingequipment,donot tip engineor
equipmentat anglewhich causesgasolineto spill.
Do notchokecarburetorto stopengine.
Whentransportingequipment,transportwith fuel tank
EMPTY.
Whenstoringgasolineorequipmentwithfuel in tank,
storeawayfromfurnaces,stoves,waterheatersor
otherappliancesthathavepilot lightorother ignition
sourcebecausetheycan ignitegasolinevapors.
,_ Starting engine creates spark-
ing. Sparking can ignite nearby
__ flammable gases. Explosion and
fire could result,
If thereis a naturalor LP gas leakagein area,do not
startengine.
• Do not usepressurizedstartingfluidsbecausevapors
areflammable.
_ ngines give off carbon mon-
oxide, an odorless, colorless,
poisonous gas. Breathing carbon
monoxide can cause nausea,
fainting, or death.
Startandrunengineoutdoors.
Do not startor runenginein enclosedarea,evenif
doorsor windowsare open.
_ nintentional sparking can result
infire or electric shock. Unin-
tentional start-up can result in
entanglement, traumatic amputa-
tion, or laceration.
• Beforeperformingadjustmentsor repairs,disconnect
sparkplugwireand keepit awayfrom spark plug.
• Whentestingfor spark,use approvedspark plug
tester.
Do notcheckfor sparkwithsparkplug removed.
14
Running engine produces heat.
Engine parts, especially muffler,
become extremely hot. Severe
thermal burns can occur on
contact. Combustibledebris,
such as leaves, grass, brush, etc.,
can catch fire.
• Allow muffler,enginecylinder,and fins to cool before
touching.
• Keepchildrenawayfrom hot or runningengines.They
can sufferburnsfroma hot muffler.
Removeaccumulatedcombustiblesfrommufflerand
cylinderarea.
_ Rotating engine parts can
contact or entangle hands, feet,
hair, clothing, or accessories.
Traumaticamputation or severe
laceration can result.
Operateequipmentwithguardsin place.
Keephandsandfeetawayfromrotatingparts.
SafetyAlert
• Tie up long hairand removejewelry.
Do notwear loose-fittingclothing,danglingdraw-
stringsor itemsthatcouldbecomecaught.
_ apid retraction of starter cord
(kickback) will pull hand and
arm toward engine faster than
you can let go. Broken bones,
fractures, bruises or sprains
could result.
• Whenstartingengine,pullcordslowlyuntil resis-
tanceisfelt,then pullrapidly.
• Removeall externalequipment/engineloadsbefore
startingengine.
• Directcoupledequipmentcomponentssuchas, but
not limitedto blades,impellers,pulleys,sprockets,
etc.,mustbesecurelyattached.
Safety Label Location
Thislabelwarnsyouof potentialhazardsthat can
causeseriousinjury.Readit carefully.Referto Figure
8-1for explanationof symbols.If the labelcomesoff or
becomeshardto read,contact thedealer for replace-
ment.
International Symbols and Meanings
A
HotSurface ToxicFumes
GasolineIs
Flammable
ReadOwner's
UnleadedFuel Start Run
Manual
Figure8-1: Internationalsymbolsandmeanings.
15
WARNING
Running engine produces
heat.Engineparts, es-
peciallymuffler, become
extremely hot. Severe
thermal burns can occur
on contact.Combustible
debris,suchas leaves,
grass,brush, etc., can
catchfire.
Rotatingengine parts
can contactor entangle
hands,feet, hair, clothing,
or accessories. Traumatic
amputation or severe
laceration can result.
Rapidretractionof starter
cord(kickback) willpull
handand armtoward
enginefaster than you
cartlet go. Broken bones,
fractures, bruises or
sprainscouldresult.
IMPORTANT:This
engine is sh pped
without gasoline or oil
in the engine. Running
the engine with insuf-
ficient oil can cause
serious engine damage
and void the engine
warranty.
IMPORTANT:Using
non- detergentoil or 2-
stroke engine oil could
shorten the engine's
service life.
Be sure to check the
engine on a level
surface with the engine
stopped.
Know Your Engine
Fuel Cap
Starter
Gri
Air Cleaner
Oil Fill Ca
Oil Drain----_
Muffle_
Figure9-1:Themajorcomponentsoftheengine.
Spark Plug
Readthissectionbeforestartingyourlawnmowerengine.Comparethe illustrationin Figure9-1 with your lawnmower
engineto familiarizeyourselfwiththe locationof variouscontrolsandadjustments.
Pre-Operation Check
Oil Recommendations
iMPORTANT:This engineis shippedwithout gaso-
line or oil inthe engine.Running the enginewith
insufficientoil can causeseriousenginedamage
and void the enginewarranty.
• Beforestartingengine,fill with oil. Donot over-fill.Oil
capacityis about20oz.
Usea 4-stroke,oran equivalenthighdetergent,
premiumqualitymotoroilcertifiedto meetorexceed
U.S.automobilemanufacturer'srequirementsfor service
classificationSG, SE Motoroils classifiedSG,SF will
showthis designationon thecontainer.
SAE10W-30is recommendedfor general,all tem-
peratureuse.If singleviscosityoil is used,selectthe
appropriateviscosityfor theaveragetemperaturein your
areafromthe chart to the right.
__ lOw
___ 20w
m__ 20
mmu30
40 IIm_
I
20w40, 20w50 ____mh_,
I v
15w40, 15w50 ______
®,
10w40 _____mhk,
10w30 _____1
.L
("C)-30 ° -20 ° -10° 0° 10° 200 300 400
(°F)-20 ° 0° 200 400 600 800 100 °
Ambient Temperature
1. SingleViscosity
2. MultiViscosity
iMPORTANT:Usingnon detergent oil or 2-stroke
engineoil couldshortenthe engine'sservicelife.
16
Check Oil Level
iMPORTANT:Be sure to checkthe engine on a level
surface with the engine stopped.
1. Removethe oil fillercap andwipethe dipstickclean.
SeeFigure9-2.
2. Insertthe dipstickintothe oil fillerneck, butdo not
screwit in.
3. If the levelis low,slowlyaddoil to the upperlimiton
thedipstick.SeeFigure9-2 inset.
4. Tightendipstickfirmlybeforestartingengine.
IMPORTANT:Donot overfill. Overfilling with oil may
causesmoking,hardstarting, spark plug fouling, or
oil saturation of air cleaner.
Fuel Recommendations
Useautomotivegasoline(Unleadedor lowleadedto
minimizecombustionchamberdeposits).Neverusean
oil/gasolinemixtureor dirtygasoline.Avoidgettingdirt,
dust,or waterinthe fuel tank.
,_bl= WARNING:Gasoline is extremelyflam-
mable and is explosiveunder certain
conditions.
Refuel in a well-ventilatedarea with the engine
stopped. Do not smoke or allow flames or sparks
inthe areawhere the engine is refueledor where
gasoline is stored.
Donot overfill the fuel tank (there should be no fuel
inthe filler neck). Afterrefueling, makesure the tank
cap isclosed properlyand securely.
Be careful not to spill fuel when refueling. Spilled
fuel or fuel vapor mayignite.If any fuel is spilled,
makesure the areais dry before starting the engine.
Avoidrepeatedor prolongedcontact with skin or
breathing of vapor.
Check Fuel Level
1. Cleanaroundfuelfill beforeremovingcap to fuel.
2. Filltankto approximately1-inchbelowlowestportion
of neck to allowfor fuelexpansion.Becarefulnot to
overfill.
iMPORTANT:Before refueling,allow engineto cool
2 minutes.
Starting The Engine
,__1i= WARNING:Alwayskeep hands and
feet clearof equipmentmoving parts.
Do not use a pressurizedstarting fluid.
Vapors are flammable.
Oil Fill Cap/ _ .
Dipstick
J
Figure9-2:Checkingtheoil level.
Figure9-3:Startingthemower.(Yourmowermaydifferfromthat
shown)
2. Standingbehindthe mower,depressthe bladecontrol
handleandhold it againstthe upperhandle.
3. Pullthe startergrip lightlyuntil resistanceis felt,
thenpull rapidlyto overcomecompression,prevent
kickback,andstart engine.Repeatif necessary.See
Figure9-3.
IMPORTANT:Donot allow the starter grip to snap
back against the ropeguide. Return it gently to
preventdamage to the starter.
4. Whenenginewarmsup, pushinthe choke knob.See
Figure9-3.
Stopping The Engine
1. Pullout thechokeknoblocatedonthe left sideof 1. Releasethe bladecontrol.
the upperhandle.SeeFigure9-3. Use of the choke
maynotbe necessaryif the engineiswarm or the air
temperatureis high.
17
Always keephands and
feet clear of equipment
moving parts.Donot use
a pressurizedstarting
fluid. Vapors are flare,
mable.
i
IMPORTANT:Do not
allow the starter grip to
snap back against the
engine. Return it gently
to preventdamage to
the starter.
WARNING
Shut off the engine
beforeperforming
type of maintenance,
ro.roveo ,oo!doo o!
start-upidisconnect
t,e parkp boot:
Beforetipping engine
drain oil, drain fuel
from tank by running
engine until fuel tank
is empty;
iMPORTANT:Be sure
to check engineon a
level surfaceW th the
engine stopped Drain
i
the oil while the engine
is still warm to assure
rapid and complete
draining:
i
WARNING:Shut off the engine before
performingany maintenance.To
preventaccidental start-up, disconnect
the spark plugboot.
IMPORTANT:Ifenginemustbe tippedto transport
equipmentorto inspector removegrass,keepspark
plugsideof engineup.Transportingor tippingengine
sparkplugdownmaycausesmoking,hardstarting,
sparkplugfouling,or oil saturationof aircleaner.
Maintenance Schedule
Periodicinspectionand adjustmentof theengine is
essentialif high levelperformanceis to be maintained.
Regularmaintenancewillalso ensurea long servicelife.
The requiredserviceintervalsandthe kindof mainte-
nanceto be performedare describedin thetable below.
Followthe hourlyor calendarintervals,whicheveroccur
first.Morefrequentserviceis requiredwhenoperatingin
adverseconditions.
Tasks
ChangeEngine
Oil
Service Air
Cleaner
First5 hours
v"
Service Spark
Plug
Clean Finger ........
Guard
Eachuseor
every5 hours
CleanAround
Muffler
Everyseason
or 25hours
Everyseason
or50 hours
v"
Everyseason
or 100hours
v"
Service Dates
1-Servicemorefrequentlywhenusedindustyareas.
ff Ifoperatingunder heavyload or highambienttemperature.
f
Oil Fill Cap
P
Drain
Figure10-1:Changingtheoil.
Oil Service
• Checkoil level regularly.
J
Besure correctoil levelis maintained.Checkevery
fivehoursordaily beforestartingengine.Seeoil
checkingprocedurein the Operationsection.
Oil Change
IMPORTANT:Be sureto checkengineona level surface
withthe enginestopped.Drainthe oil whilethe engine is
stillwarmto assurerapidandcompletedraining.
Removeoilfill cap and drain oil by eitherremoving
drainplugor turningmoweron its side (air cleanerside
up)andallowingoil to drainintoa suitablecontainer.
SeeFigure10-1.
WARNING:Before tipping engineor
equipmentto drain oil, drain fuel from
tank by runningengine until fuel tank is
empty.
2. Reinstallthe drain plug(if removed),and tightenit
securely.
3. Refillwiththe recommendedoil (see Operation
section)andcheckthe oil level.See Figure10-1.
4. Reinstallthe oil fill cap securely.
18
IMPORTANT:Usedmotoroil may causeskin cancer
if repeatedlyleft incontactwith the skin for prolonged
periods.Althoughthis is unlikelyunlessyou handleused
oilon a dailybasis,it is still advisableto thoroughlywash
yourhandswithsoapand wateras soon as possible
afterhandlingusedoil.
NOTE:Pleasedisposeof usedmotoroil in a mannerthat
is compatiblewiththe environment.We suggestyoutake
it in a sealedcontainerto yourlocal servicestationfor
reclamation.Donot throwit inthe trashor pourit on the
ground.
PaperElement
Air Cleaner Service
Adirty aircleanerwill restrictair flow to the carburetor.
Topreventcarburetormalfunction,servicethe air cleaner
regularly.Servicemorefrequentlywhenoperatingthe
enginein extremelydustyareas.
__k ARNING:Neveruse gasolineor low
flash pointsolventsfor cleaningthe
air cleaner element.A fire or explosion
couldresult.
IMPORTANT:Neverrunthe enginewithouttheair
cleaner.Rapidenginewearwill result.
1. Removethe wing boltandthe air cleanercover.
Removethe elementsand separatethem. See Figure
10-2.Carefullycheck bothelementsfor holesortears
andreplaceif damaged.
2. Foamelement: Wash theelementin a solutionof
householddetergentandwarm water,then rinse
thoroughly,or wash in nonflammableor high flash
pointsolvent.Allowtheelementto dry thoroughly.
Soakthe elementin cleanengineoil and squeezeout
theexcessoil. The enginewill smokeduringinitial
start-upif too muchoil is left inthe foam.
3. Paperelement: Taptheelementlightlyseveraltimes
ona hardsurfaceto removeexcessdirt,or blow
compressedair throughthe filterfrom the insideout.
Nevertry to brushthedirt off; brushingwillforce
dirt intothe fibers.Replacethe paperelementif it is
excessivelydirty.
Foam Element
Figure10-2:Servicingtheaircleaner.
Spark Plug
Spark Plug
Figure10-3:Thesparkplugandboot.
Spark Plug Service
__i= ARNING:DONOT check for spark
with spark plugremoved. DONOTcrank
enginewith spark plugremoved.
Toensureproperengineoperation,thesparkplug must
beproperlygappedandfree of deposits.
1. Removethe spark plug bootand usea sparkplug
wrenchto removethe plug.See Figure10-3.
,_ WARNING:if the engine has been
running, the muffler will be very hot. Be
carefulnot to touch the muffler.
2. Visuallyinspectthe sparkplug.Discardthe sparkplug
if thereis apparentwear,or if the insulatoriscracked
orchipped.Cleanthe sparkplug with a wirebrushif it
is to be reused.
WARNING
Never use gasoline
or low flash point sol-
vents for cleaning the
air cleaner element.
A fire or explosion
could result.
DO NOT check for
spark with spark plug
removed. DO NOT
crank engine with
spark plug removed.
if the engine has
been running, the
muffler will be very
hot. Be careful not to
touch the muffler.
19
Maintaining
WARNING
Accumulation of
debris around muffler
cause afire:
Inspect and clean
b fo ooveryo
IMPORTANT:DOnot
spray engine Withwater
to clean because water
could contaminatefuel
Using a garden hose
or pressure Washing
equipment Cana so
force water into the
air cleaner ormuffler
opening:Water in the
air cleane! will soak
the paper e!emen
and water that Passes
through the element
or muffler canenter
the cylinder;causing:
damage:
i
f
Electrode
--,,- *-- 0.030 in.
Figure10-4:Measurethepluggapwitha feelergauge.
3. Measurethe plug gap with a feelergauge.Correct
as necessaryby bendingsideelectrode.See Figure
10-4.Thegap shouldbe setto 0.030in.
4. Checkthat the sparkplug washeris in good condi-
tionandthreadthe sparkpluginby handto prevent
cross-threading.
5. Afterthe sparkplugis seated,tightenwith a spark
plugwrenchto compressthe washer.
NOTE:Wheninstallinga newspark plug,tighten 1/2
turnafterthe sparkplugseatsto compressthewasher.
Whenreinstallinga usedsparkplug,tighten 1/8-1/4turn
afterthe sparkplug seatsto compressthe washer.
IMPORTANT:The sparkplug mustbe securelytight-
ened.Animproperlytightenedsparkplugcan become
veryhotand maydamagethe engine.
Clean Engine
If theenginehasbeenrunning,allowit to coolfor at
leasthalfan hourbeforecleaning.Periodicallyremove
grassanddirt build-upfromengine.Cleanfingerguard
andaroundmuffler.Cleanwitha brushor compressed
air.
Storage
Enginesstoredover30 daysneedto bedrainedof fuel
to preventdeteriorationand gumfromforminginfuel
systemor onessentialcarburetorparts. If the gasolinein
yourenginedeterioratesduringstorage,you mayneed to
havethe carburetor,and otherfuel systemcomponents,
servicedor replaced.
1. Removeall fuel fromtank by runningengineuntil it
stopsfromlackof fuel.
2. Changeoil. See Oil Changesection.
3. Removesparkplug and pour about1/2 an ounceof
engineoil intocylinder.Replacesparkplugandcrank
slowlyto distributeoil.
4. Cleangrassanddebrisfromaroundengine,under
fingerguard,and under,aroundandbehindmuffler.
Touchupanydamagedpaint,and coatother areas
thatmayrustwitha lightfilmof oil.
5. Storeina clean,dry andwellventilatedareaawayfrom
anyappliancethatoperateswith a flame or pilotlight,
suchas a furnace,waterheater,or clothesdryer.Also
avoidanyareawitha sparkproducingelectricmotor,
orwherepowertoolsare operated.
6. If possible,alsoavoidstorageareaswithhighhumidity,
becausethat promotesrustandcorrosion.
7. Keepthe enginelevelin storage.Tiltingcan causefuel
oroil leakage.
Removing From Storage
1. Checkyourengineas describedin the Pre-Operation
Checksectionof this manual.
2. If the fuelwasdrainedduringstoragepreparation,fill
the tank with freshgasoline.If you keepa container
of gasolinefor refueling,makecertain it containsonly
freshfuel.Gasolineoxidizesand deterioratesover
time,causinghardstarting.
3. If the cylinderwascoatedwithoil duringstorage
preparation,the enginewill smokebrieflyat startup.
Thisis normal.
IMPORTANT: Do not spray engine with water to clean
because water could contaminate fuel. Using a garden
hose or pressure washing equipment can also force
water into the air cleaner or muffler opening. Water in
the air cleaner will soak the paper element, and water
that passes through the element or muffler can enter the
cylinder, causing damage.
__lk ARNING:Accumulationof debris
around muffler could causea fire.
Inspect and clean before every use.
2O
NOTES
21
Model 44M
W
I i
\
S-WaveTread BarTread
22
Fief. Part No. Description
No.
1 747-1161A BladeControl
2 749-1092A UpperHandle
3 747-04080 GrassCatcherFrame
4 749-0928A LowerHandle
5 720-0279 Wing Nut
6 710-1205 RopeGuide
7 710-1174 CarriageBolt,5/16-18x 2
8 664-04007 GrassBagAssembly
9 720-04072 Star Knob
10 746-04239A ChokeCable
11 726-0240 CableTie
12 710-0703 CarriageBolt,I/4-20
13 631-04225 RearDischargeDoor
14 710-04577 Screw,Machine,M-4x 10
15 731-05401 EngineShroud
16 732-04090A TorsionSpring-RH
17 734-04087 RearWheel,8x 1.8, Bar
18 731-04150C RearBaffle
19 750-04594 SleeveSpacer- RH
20 787-01277 Deck- 21"
21 712-04064 FlangeLockNut, 1/4-20
22 782-5002B FrontBaffle
23 748-04015A BladeAdapterw/Pulley
24 742-0741 21" MulchingBlade
25 710-1257 HexBolt, 3/8-24 x2.5
26 687-02044 PivotPlateAssembly
27 736-0524B BladeBellSupport
28 787-01298 HeightAdjustmentPlate- RH
787-01299 HeightAdjustmentPlate- LH
29 720-0426 AdjustmentLeverKnob
30 732-0706 FrontLever- RH
732-0707 FrontLever- LH
31 738-0507B ShoulderScrew
32 634-04100 FrontWheel,8 x 1.8, Bar
33 710-1241 Screw,1/4-15x 1.000
Fief. Part No. Description
No.
34 746-04299 ControlCaNe-48"
35 710-0606 Screw,1/4-20x 1.50
36 731-05642 Trailshield
37 732-0700 TrailshieldWire
38 712-0397 Wing Nut, 1/4-20
39 747-04587 RearDoorPivot Rod
40 732-04175 SpringLever
41 687-02071A PivotArmAssembly-RH
687-02070A PivotArmAssembly- LH
42 710-1652 AB Screw
43 712-04065 FlangeLockNut,3/8-16
44 714-0104 HairpinClip
45 710-0654A TTSems Screw,3/8-16x 1.00
46 687-02193 Ht.Adj. Assy.Front- LH
687-02194 Ht.Adj. Assy.Front- RH
47 687-02270 RearHandleBracketAssy.- LH
687-02271 RearHandleBracketAssy.- RH
48 747-1214 DriveControl
49 710-1650 ShoulderScrew
50 746-04303 DriveCable
51 754-0637A V-Belt
52 618-04376A TransmissionAssembly
53 731o05021A FrontDriveCover
54 732-1043 BeltTensionSpring
55 682-0015 BearingAssembly
56 736-0447 WaveWasher
57 710-0216 HexScrew
58 715-0221 DowelPin
59 717-1762 Gear,14T- RH
717-1761 Gear,14T- LH
60 710-04531 Screw,1/4-20x.390
61 782-7551A Wheel DustCap
62 716-0102 SnapRing
63 736-0474 Washer,1.5"0D
64 750-04595 SleeveSpacer- LH
Parts List
parts, contact
1=800,800'7310
www,mtdproducts,com
IMPORTANT
For a proper working
machine, use Factory
Approved Parts.
V-BELTS are specially
designed to engage
and disengage safely.
A substitute (non OEM)
V-Belt can be danger-
ous by not disengaging
completely.
23
Engine IP70
21-
1
@
1
14-
@
I
22
24
Ref. PartNo. Description
No.
1. 951-10368 FuelTank
2. 951-10369 FlywheelShroud
3. 951-10335 RubberFuelTankMountingWasher
4. 951-10334 Oil FillerTubeAssembly
5. 951-10333 DipstickAssembly
6. 951-10413 CylinderHeadComplete
7. 951-10414 ShortBlockAssembly
8. 951-10321 StopSwitchand BrakeAssembly
9. 951-10319 RecoilSpringand PulleyAssembly
10. 951-10344 PushRodKit
11. 951-10345 ValveKit
12. 951-10370 Oil DrainPlugand WasherAssembly
13. 951-10366 IgnitionCoil
14. 951-10310 CarburetorAssembly
15. 951-10307 FlywheelKey
16. 951-10412 Air CleanerHousingAssemblyComplete
17. 951-10342 MufflerStudAssembly
18. 951-10364 FuelLine Kit- Inc.hoses,clamps& filter
19. 951-10358 FuelFilter
20. 951-10300 FuelCapAssembly
21. 951-10299 RecoilStarterAssembly
22. 951-10298 Air CleanerKit
23. 951-10297 Air CleanerThumbScrew
24. 951-10411 MufflerGuard
25. 951-10403 Muffler
26. 951-10402 MufflerGasket/HeatShield
27. 951-10387 GovernorReturnSpring
28. 951-10292 SparkPlug
- 952Z1P70FU Engine- Complete
- 951-10326 CarburetorKit- Major
- 951-10323 CarburetorKit - Minor
- 951-10416 GasketKit- Complete
- 951-10417 GasketKit- External
- 951-10351 SparkArrestor
NOTE:Illustratedpartswithouta numericcall-outarenotservicablecomponents.
Illustrated
CTORY PARTS
To order replacement
parts, contact
1=800-800-7310
or visit
www.mtdproducts.com.
25
MTD LLC (MTD), The United States Environment Protection Agency (U. S. EPA)
Emission Control System Warranty Statement
(Owner's Defect Warranty Rights and Obligations)
The U. S. EPAand MTDarepleasedto explaintheemissionscontrolsystemwarrantyon your modelyear2005and latersmalloff-roadengine.
Newsmalloff-roadenginesmust be designed,built and equippedto meet the stringentanti-smogstandards.MTDmustwarrantytheemission
controlsystemonyour enginefor the periodof time listed below,providedthere hasbeen no abuse,neglector impropermaintenanceof your small
off-roadengine.
Youremissioncontrolsystemmay includeparts suchas the carburetor,aircleaner,ignitionsystem,exhaustsystem,and otherassociatedemis-
sion-relatedcomponents.
Wherea warrantableconditionexists,MTDwill repairyour smalloff-roadengineat no cost to yourincludingdiagnosis,parts and labor.
MANUFACTURER'S WARRANTY COVERAGE:
Thisemissionscontrolsystemiswarrantedfor twoyears.If anyemission-relatedpartonyour engineisdefective,the partwill be repairedor
replacedby MTD.
OWNER'S WARRANTY RESPONSIBILITIES:
As the smalloff-roadengineowner,youare responsiblefor the performanceof the requiredmaintenancelistedinyourOwner'sManual.MTD
recommendsthatyou retainall your receiptscoveringmaintenancesonyoursmall off-roadengine,but MTDcan notdenywarrantysolely for the
lackof receiptsor for yourfailureto ensurethe performanceto all scheduledmaintenance.
As the smalloff-roadengineowner,youshouldhoweverbeawarethatMTDmaydenyyour warrantycoverageifyoursmall off-roadengineor part
hasfaileddue to abuse,neglect,impropermaintenanceor unapprovedmodifications.
Youare responsiblefor presentingyoursmalloff-roadengineto an AuthorizedMTDServiceDealeras soonas a problemexists.The warranted
repairsshouldbe completedina reasonableamountof time,notto exceed30 days.
If youhaveanyquestionsregardingyour warrantyrightsand responsibilities,you shouldcontacta MTDServiceRepresentativeat 1-800-800-7310
andaddressisMTDLLC,EO. Box361131,ClevelandOH,44136-0019.
DEFECTS WARRANTY REQUIREMENTS FOR 1995 AND LATER SMALL OFF=ROAD ENGINES:
Thissectionappliesto 1995and latersmalloff-roadengines.Thewarrantyperiodbeginson the datetheengineorequipmentisdeliveredto an
ultimatepurchaser.
(a) GeneralEmissionsWarrantyCoveracj#_
MTDmustwarrantto the ultimatepurchaserandeachsubsequentpurchaserthatthe engineis:
(1)Designed,built,andequippedso as to conformwith all applicableregulationsadoptedbythe Air ResourcesBoardpursuantto itsauthorityin
Chapters1and 2,Part 5, Division26 of the Healthand SafetyCode;and
(2) Freefromdefectsinmaterialsandworkmanshipthat causethe failureof a warrantedpartto be identicalinall materialrespectsto the part as
describedinthe enginemanufacturer'sapplicationfor certificationfor a periodof two years.
.(b)The warrantyon emissions-relatedpartswill be interpretedas follows:
(1)Anywarrantedpart thatisnot scheduledfor replacementas requiredmaintenanceinthe writteninstructionsrequiredby Subsection(c)
mustbewarrantedfor the warrantyperioddefinedinSubsection(a)(2). If anysuchpartfailsduringthe periodof warrantycoverage,it mustbe
repairedor replacedby MTDaccordingto Subsection(4)below.Any suchpartrepairedor replacedunderthewarrantymustbe warrantedfor
the remainingwarrantyperiod.
(2)Any warrantedpartthat isscheduledonlyfor regularinspectionin the writteninstructionsrequiredby Subsection(c) mustbe warrantedfor
thewarrantyperioddefinedinSubsection(a)(2).A statementinsuchwritteninstructionsto the effect of "repairor replaceas necessary"will
not reducethe periodof warrantycoverage.Anysuch part repairedor replacedunderwarrantymustbe warrantedforthe remainingwarranty
period.
(3) Anywarrantedpartthat whichis scheduledfor replacementas requiredmaintenancein the writteninstructionsrequiredby Subsection(c)
mustbewarrantedfor the periodof timepriorto the first scheduledreplacementpointfor that part. If the partfails prior to the first scheduled
replacement,the part mustbe repairedor replacedby MTDaccordingto Subsection(4) below.Any such part repairedor replacedunder
warrantymustbewarrantedfor the remainderof the period priorto thefirst scheduledreplacementpointfor the part.
(4) Repairor replacementof any warrantedpart underthe warrantyprovisionsof this article mustbe performedat no chargeto the ownerat a
warrantystation.
(5) Notwithstandingthe provisionsof Subsection(4)above,warrantyservicesor repairsmustbeprovidedat all MTDdistributioncentersthat
arefranchisedto servicethe subjectengines.
(6) Theownermustnot be chargedfordiagnosticlabor that leadsto the determinationthata warrantedpart isinfact defective,providedthat
suchdiagnosticworkisperformedat a warrantystation.
EPA-1
(7)The enginemanufactureris liable fordamagesto otherenginecomponentsproximatelycausedbya failureunderwarrantyof anywarranted
part.
(8) Throughoutthe engine'swarrantyperioddefinedin Subsection(a)(2), MTDwill maintaina supplyof warrantedparts sufficientto meet the
expecteddemandfor such parts.
(9) Any replacementpart maybe usedin the performanceof any warrantymaintenanceor repairsandmustbe providedwithoutchargetothe
owner.Such usewill not reducethe warrantyobligationsof MTD.
(10)Add-onormodifiedpartsthat are not exemptedby theAir ResourcesBoardmaynot be used.The useof anynon-exemptedadd-onor
modifiedpartsshall be groundsfor disallowinga warrantyclaimmade in accordancewith this article.The enginemanufacturershall notbe
liableunderthisarticleto warrantfailuresof warrantedpartscausedby the useof non-exemptedadd-on or modifiedpart.
(c) MTDwill includea copyof the followingemissionwarrantypartslist with each newengine,usingthoseportionsof the list applicableto the
e__&gine.
(1)FuelMeteringSystem
• Coldstart enrichmentsystem(soft choke)
• Carburetorandinternalparts
• Fuel Pump
(2)Air InductionSystem
• Aircleaner
• Intakemanifold
(3) IgnitionSystem
• Sparkplug(s)
• MagnetoIgnitionSystem
(4)ExhaustSystem
(5) MiscellaneousItemsUsedin AboveSystem
• Vacuum,temperature,position,time sensitivevalvesand switches
• Connectorsandassemblies
EPA-1
MANUFACTURER'S LiMiTED WARRANTY FOR
The limitedwarrantyset forth belowisgivenby MTDLLCwithrespectto
newmerchandisepurchasedandusedin the UnitedStates,itsposses-
sionsandterritories.
"MTD"warrantsthisproductagainstdefectsin materialandworkmanship
for a periodof two (2) yearscommencingonthe dateof originalpurchase
andwill,at its option,repairor replace,free of charge,anypart foundto
bedefectiveinmaterialsor workmanship.This limitedwarrantyshallonly
applyif this producthas beenoperatedandmaintainedin accordance
withthe Operator'sManualfurnishedwith the product,and has not been
subjectto misuse,abuse,commercialuse,neglect,accident,improper
maintenance,alteration,vandalism,theft,fire,water,or damagebecause
of otherperilor naturaldisaster.Damageresultingfromthe installationor
useof any part,accessoryorattachmentnotapprovedby MTDfor use
withthe product(s)coveredbythis manualwill voidyourwarrantyas to
any resultingdamage.
Normalwearpartsarewarrantedto befree fromdefects in materialand
workmanshipfor a periodof thirty (30) days fromthe dateof purchase.
Normalwearpartsinclude,butare notlimitedto itemssuch as belts,
blades,bladeadapters,grass bags,wheels,engineoil, air filters,and
sparkplugs.
NOWTO OBTAINSERVICE:Warrantyserviceis available,WITH
PROOFOF PURCHASE,throughyour localauthorizedservicedealer.To
locatethe dealerin yourarea,checkyourYellowPages,or contact MTD
LLCat RO.Box 361131,Cleveland,Ohio44136-0019,or call 1-800-800-
7310or logon to ourWebsite at www.mtdproducts.com.
Thislimitedwarrantydoesnot providecoveragein the followingcases:
a. Logsplitterpumps,valves,andcylindershavea separateone
yearwarranty.
b. Routinemaintenanceitemssuch as lubricants,filters, blade
sharpening,tune-ups,brakeadjustments,clutch adjustments,
deckadjustments,andnormaldeteriorationof the exteriorfinish
dueto use or exposure.
c. Servicecompletedby someoneotherthanan authorizedservice
dealer.
d.
e.
f.
MTDdoes notextendany warrantyfor productssoldor
exportedoutsideof the UnitedStates,its possessionsand
territories,exceptthosesoldthroughMTD'sauthorized
channelsof exportdistribution.
Replacementpartsthatare not genuineMTDparts.
Transportationchargesand servicecalls.
No impliedwarranty, includingany impliedwarranty of merchant-
ability of fitness for a particularpurpose,applies after the applicable
periodof express written warranty above as to the partsas identi-
fied. No other express warranty, whether written or oral, except as
mentionedabove,given by any personor entity,includinga dealer
or retailer,with respect to any product,shallbind MTD. Duringthe
periodof the warranty, the exclusive remedyis repairor replacement
of the productas set forth above.
Theprovisionsas setforth inthis warrantyprovidethe soleand
exclusiveremedy arising from the sale. MTDshallnot be liable
for incidentalor consequentialloss or damage including,without
limitation, expensesincurredfor substituteor replacement lawncare
servicesor for rentalexpenses to temporarily replacea warranted
product.
Somestatesdo not allowtheexclusionor limitationof incidentalor
consequentialdamages,or limitationson howlonganimpliedwarranty
lasts,so the aboveexclusionsor limitationsmay notapplyto you.
In no eventshall recoveryof any kind be greaterthan theamountof the
purchasepriceof the productsold.Alterationof safety features of the
productshall void this warranty. Youassumethe riskandliabilityfor
loss, damage,or injuryto youand your propertyand/orto others and their
propertyarisingout of the misuseor inabilityto use theproduct.
Thislimitedwarrantyshall notextendto anyoneotherthanthe original
purchaseror to the personfor whom itwaspurchasedas a gift.
HOWSTATELAWRELATESTO THiSWARRANTY: This limitedwar-
rantygivesyouspecificlegalrights,andyou mayalso haveother rights
whichvaryfromstateto state.
IMPORTANT: OwnermustpresentOriginalProofof Purchaseto obtain
warrantycoverage.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHiO 44136=0019; Phone: 1=800=800=7310
