FormNo.3376-282-ASMRev A
20inMulching/RearBaggingLawn
Mower
ModelNo.10630—SerialNo.313000001andUp
ModelNo.10632—SerialNo.313000001andUp
Operator'sManual
Introduction
Thisrotary-blade,walk-behindlawnmowerisintended
tobeusedbyresidentialhomeownersorprofessional,
hiredoperators.Itisdesignedprimarilyforcuttinggrass
onwell-maintainedlawnsonresidentialorcommercial
properties.Itisnotdesignedforcuttingbrushorfor
agriculturaluses.
Readthisinformationcarefullytolearnhowtooperateand
maintainyourproductproperlyandtoavoidinjuryand
productdamage.Youareresponsibleforoperatingthe
productproperlyandsafely.
YoumaycontactLawn-Boydirectlyatwww.Lawn-Boy.com
forproductandaccessoryinformation,helpndingadealer,
ortoregisteryourproduct.
Wheneveryouneedservice,genuineLawn-Boyparts,or
additionalinformation,contactanAuthorizedServiceDealer
orLawn-BoyCustomerServiceandhavethemodeland
serialnumbersofyourproductready.Figure1identiesthe
locationofthemodelandserialnumbersontheproduct.
Writethenumbersinthespaceprovided.
Figure1
1.Modelandserialnumberplate
ModelNo.
SerialNo.
Thismanualidentiespotentialhazardsandhassafety
messagesidentiedbythesafetyalertsymbol(Figure2),
whichsignalsahazardthatmaycauseseriousinjuryordeath
ifyoudonotfollowtherecommendedprecautions.
Figure2
1.Safetyalertsymbol
Thismanualuses2wordstohighlightinformation.
Importantcallsattentiontospecialmechanicalinformation
andNoteemphasizesgeneralinformationworthyofspecial
attention.
WARNING
CALIFORNIA
Proposition65Warning
Thisproductcontainsachemicalorchemicals
knowntotheStateofCaliforniatocausecancer,
birthdefects,orotherreproductiveharm.
Theengineexhaustfromthisproduct
containschemicalsknowntotheStateof
Californiatocausecancer,birthdefects,
orotherreproductiveharm.
Contents
Introduction..................................................................1
GeneralOperation..................................................2
SlopeOperation......................................................2
Children.................................................................3
Service...................................................................3
SafetyandInstructionalDecals.................................4
Setup............................................................................4
UnfoldingtheHandle..............................................4
InstallingtheRecoil-starterRopeintheRope
Guide.................................................................5
FillingtheEnginewithOil........................................5
ProductOverview..........................................................6
Operation.....................................................................6
©2012—Lawn-Boy®Inc.
8111LyndaleAvenueSouth
Bloomington,MN55420
Registeratwww.LawnBoy.com.
OriginalInstructions(EN)
PrintedintheUSA
AllRightsReserved
*3376-282-ASM* A
Attachments/Accessories.........................................6
FillingtheFuelTank................................................6
CheckingtheEngineOilLevel..................................7
AdjustingtheCuttingHeight....................................7
StartingtheEngine..................................................8
UsingtheSelf-propelDrive.......................................8
StoppingtheEngine................................................8
MulchingtheClippings............................................8
BaggingtheClippings..............................................8
OperatingTips.......................................................9
Maintenance.................................................................10
RecommendedMaintenanceSchedule(s)......................10
PreparingforMaintenance.......................................10
ServicingtheAirCleaner.........................................11
ChangingtheEngineOil.........................................11
ReplacingtheBlade................................................12
AdjustingtheSelf-propelDriveCable........................12
CleaningtheundersideoftheMachine.......................13
Storage........................................................................13
PreparingtheMachineforStorage............................13
FoldingtheHandle.................................................14
RemovingtheMachinefromStorage.........................14
Safety
ThislawnmowermeetsorexceedstheCPSCbladesafety
requirementsforwalk-behindrotarylawnmowersandthe
B71.1specicationsoftheAmericanNationalStandards
Instituteineffectatthetimeofproduction.
Readandunderstandthecontentsofthismanualbefore
youstarttheengine.
Thesafetyalertsymbol(Figure2)isusedtoalertyouto
potentialpersonalinjuryhazards.Obeyallsafetymessages
thatfollowthissymboltoavoidpossibleinjuryordeath.
Improperlyusingormaintainingthismowercouldresultin
injuryordeath.Toreducethispotential,complywiththe
followingsafetyinstructions.
Thefollowinginstructionshavebeenadaptedfromthe
ANSI/OPEIstandardB71.1-2003.
Thiscuttingmachineiscapableofamputatinghands
andfeetandofthrowingobjects.Failuretoobserve
thefollowingsafetyinstructionscouldresultinserious
injuryordeath.
GeneralOperation
•Read,understand,andfollowallinstructionsonthe
machineandinthemanual(s)beforestarting.
•Donotputhandsorfeetnearorunderthemachine.
Keepclearofthedischargeopeningatalltimes.
•Onlyallowresponsibleadults,whoarefamiliarwiththe
instructions,tooperatethismachine.
•Cleartheareaofobjectssuchasrocks,wire,toys,etc.,
whichcouldbethrownbytheblade.Staybehindthe
handlewhentheengineisrunning.
•Besuretheareaisclearofbystandersbeforeoperating.
Stopmachineifanyoneentersthearea.
•Donotoperatemachinebarefootedorwhilewearing
sandals.Alwayswearsubstantialfootwear.
•Donotpullmachinebackwardunlessabsolutely
necessary.Alwayslookdownandbehindbeforeand
whilemovingbackward.
•Neverdirectdischargedmaterialtowardanyone.Avoid
dischargingmaterialagainstawallorobstruction.
Materialmayricochetbacktowardtheoperator.Stopthe
bladewhencrossinggravelsurfaces.
•Donotoperatemachinewithouttheentiregrasscatcher,
dischargeguard,rearguard,orothersafetyprotective
devicesinplaceandworking.
•Neverleavearunningmachineunattended.
•Stoptheengineandwaituntilthebladecomestoa
completestopbeforecleaningthemachine,removing
grasscatcher,oruncloggingthedischargeguard.
•Operatemachineonlyindaylightorgoodarticiallight.
•Donotoperatemachinewhileundertheinuenceof
alcoholordrugs.
•Neveroperatemowerinwetgrass.Alwaysbesureof
yourfooting;walk;neverrun.
•Disengagethedrivesystem,ifsoequipped,before
startingtheengine.
•Ifthemachineshouldstarttovibrateabnormally,stop
theengineandcheckforthecauseimmediately.Vibration
isgenerallyawarningoftrouble.
•Alwaysweareyeprotectionwhenoperatingmachine.
•Lightningcancausesevereinjuryordeath.Ifyousee
lightningorhearthunderinthearea,donotoperatethe
machine;seekshelter.
•Seemanufacturer'sinstructionsforproperoperationand
installationofaccessories.Onlyuseaccessoriesapproved
bythemanufacturer.
SlopeOperation
Slopesareamajorfactorrelatedtoslipandfallaccidents,
whichcanresultinsevereinjury.Operationonallslopes
requireextracaution.Ifyoufeeluneasyonaslope,donot
mowit.
•Mowacrossthefaceofslopes;neverupanddown.
Exerciseextremecautionwhenchangingdirectionon
slopes.
•Watchforholes,ruts,bumps,rocks,orotherhidden
objects.Uneventerraincouldcauseaslipandfall
accident.Tallgrasscanhideobstacles.
•Donotmowonwetgrassorexcessivelysteepslopes.
Poorfootingcouldcauseaslipandfallaccident.
•Donotmowneardrop-offs,ditches,orembankments.
Youcouldloseyourfootingorbalance.
2
Children
Tragicaccidentscanoccuriftheoperatorisnotalerttothe
presenceofchildren.Childrenareoftenattractedtothe
machineandthemowingactivity.Neverassumethatchildren
willremainwhereyoulastsawthem.
•Keepchildrenoutofthemowingareaandunderthe
watchfulcareofaresponsibleadultotherthanthe
operator.
•Bealertandturnmoweroffifachildentersthearea.
•Neverallowchildrentooperatethemachine.
•Useextracarewhenapproachingblindcorners,shrubs,
trees,orotherobjectsthatmayblockyourviewofachild.
Service
SafeHandlingofGasoline
Toavoidpersonalinjuryorpropertydamage,use
extremecareinhandlinggasoline.Gasolineisextremely
ammableandthevaporsareexplosive.
•Extinguishallcigarettes,cigars,pipes,andothersources
ofignition.
•Useonlyanapprovedgasolinecontainer.
•Neverremovegascaporaddfuelwiththeengine
running.Allowenginetocoolbeforerefueling.
•Neverrefuelthemachineindoors.
•Neverstorethemachineorfuelcontainerwherethereis
anopename,spark,orpilotlightsuchasonawater
heateroronotherappliances.
•Neverllcontainersinsideavehicleoronatruckor
trailerbedwithaplasticliner.Alwaysplacecontainerson
thegroundawayfromyourvehiclebeforelling.
•Removegas-poweredequipmentfromthetruckortrailer
andrefuelitontheground.Ifthisisnotpossible,then
refuelsuchequipmentwithaportablecontainer,rather
thanfromagasolinedispensernozzle.
•Keepthenozzleincontactwiththerimofthefueltank
orcontaineropeningatalltimesuntilfuelingiscomplete.
Donotuseanozzlelock-opendevice.
•Iffuelisspilledonclothing,changeclothingimmediately.
•Neveroverllfueltank.Replacegascapandtighten
securely.
WARNING
Exhaustcontainscarbonmonoxide,anodorless,
deadlypoisonthatcankillyou.
Donotruntheengineindoorsorinanenclosed
area.
GeneralService
•Neveroperatemachineinaclosedarea.
•Keepallnutsandboltstighttobesuretheequipmentis
insafeworkingcondition.
•Nevertamperwithsafetydevices.Checktheirproper
operationregularly.
•Keepmachinefreeofgrass,leaves,orotherdebris
build-up.Cleanupoilorfuelspillageandremoveany
fuel-soakeddebris.Allowmachinetocoolbeforestoring.
•Ifyoustrikeaforeignobject,stopandinspectthe
machine.Repair,ifnecessary,beforestarting.
•Nevermakeanyadjustmentsorrepairswiththeengine
running.Disconnectthespark-plugwireandground
againstenginetopreventunintendedstarting.
•Checkgrasscatchercomponentsandthedischargeguard
frequentlyandreplacewithmanufacturer'srecommended
parts,whennecessary.
•Mowerbladesaresharp.Wrapthebladeorweargloves,
anduseextracautionwhenservicingthem.
•Donotchangetheenginegovernorsettingoroverspeed
theengine.
•Maintainorreplacesafetyandinstructionlabels,as
necessary.
3
SafetyandInstructional
Decals
Important:Safetyandinstructiondecalsarelocated
nearareasofpotentialdanger.Replacedamageddecals.
94-8072
117–2718
117-4143
1.Warning—readtheOperator'sManual.
2.Thrownobjecthazard—keepbystandersasafedistance
fromthemachine.
3.Cutting/dismembermenthazardofhandorfoot,mower
blade—disconnectthespark-plugwireandreadthe
instructionsbeforeservicingorperformingmaintenance.
4.Cutting/dismembermenthazardofhandorfoot,mower
blade—stayawayfrommovingpartsandkeepallguards
andshieldsinplace.
5.Cutting/dismembermenthazardofhandorfoot,mower
blade—donotmowupanddownslopes,onlymowacross;
stopthemowerandengine,pickupdebrisbeforeoperating;
lookbehindanddownwhenreversing.
Setup
Important:Removeanddiscardtheprotectiveplastic
sheetthatcoverstheengine.
UnfoldingtheHandle
WARNING
Foldingorunfoldingthehandleimproperlycan
damagethecables,causinganunsafeoperating
condition.
•Donotdamagethecableswhenfoldingor
unfoldingthehandle.
•Ifacableisdamaged,contactanAuthorized
ServiceDealer.
1.Loosenthehandleknobs(Figure3).
Note:ForModel10632,removethehandleknobs
fromthemachinehousing.
Important:Routethecablestotheoutsideofthe
handleasyouinstallthehandle.
Figure3
1.Handleknob(2)
2.Movethehandletotheoperatingposition.
3.Tightenthehandleknobsrmlybyhand(Figure3).
Note:ForModel10632,installthehandleknobsand
tightenthemrmly.
4
InstallingtheRecoil-starter
RopeintheRopeGuide
Important:Tostarttheenginesafelyandeasily
wheneveryouusethemachine,installtherecoil-starter
ropeintheropeguide.
Holdtheblade-controlbartotheupperhandleandpullthe
recoil-starterropethroughtheropeguideonthehandle
(Figure4).
Figure4
1.Recoil-starterrope2.Ropeguide
FillingtheEnginewithOil
Important:Yourmachinedoesnotcomewithoilin
theengine.Beforestartingtheengine,lltheengine
withoil.
1.Movethemachinetoalevelsurface.
2.Removethedipstick(Figure5)andpourabout3/4of
thecrankcasecapacityofoilintotheoil-lltube.
Note:Max.ll:16oz.(0.47l),type:10W-30orSAE
30detergentoilwithanAPIserviceclassicationof
SJorhigher.
Figure5
3.Wipeoffthedipstickendwithacleancloth.
4.Insertthedipstickintotheoil-lltube.
5.Removethedipstickandreadtheoillevelonthe
dipstick(Figure5).
•IftheoillevelisbelowtheAddmark,addasmall
amountofoilslowlytotheoil-lltube,andthen
repeatsteps3through5untiltheoillevelonthe
dipstickisattheFullmark.
•IftheoillevelisabovetheFullmark,drainthe
excessoiluntiltheoillevelonthedipstickisat
theFullmark.Todraintheexcessoil,referto
ChangingtheEngineOil(page11).
Important:Iftheoillevelinthecrankcaseis
toolowortoohighandyouruntheengine,
youmaydamagetheengine.
6.Installthedipsticksecurely.
Important:
Changetheengineoilaftertherst5
operatinghours
;changeityearlythereafter.Refer
toChangingtheEngineOil(page11).
5
ProductOverview
Figure6
Self-propelmodelshown
1.Blade-controlbar
6.Grassbag
2.Recoil-starthandle7.Fuel-tankcap
3.Oilll/Dipstick8.Airlter
4.Sparkplug9.Cutting-heightlever(4)
5.Self-propel-drivebar
(self-propelmodelonly)
Operation
Attachments/Accessories
AselectionofLawn-Boyapprovedattachmentsand
accessoriesareavailableforusewiththemachinetoenhance
andexpanditscapabilities.ContactyourAuthorizedService
DealerorDistributororgotowww.Lawn-Boy.comforalist
ofallapprovedattachmentsandaccessories.
FillingtheFuelTank
DANGER
Gasolineisextremelyammableandexplosive.A
reorexplosionfromgasolinecanburnyouand
others.
•Topreventastaticchargefromignitingthe
gasoline,placethecontainerand/ormachine
directlyonthegroundbeforelling,notina
vehicleoronanobject.
•Fillthetankoutdoorswhentheengineiscold.
Wipeupspills.
•Donothandlegasolinewhensmokingoraround
anopenameorsparks.
•Storegasolineinanapprovedfuelcontainer,out
ofthereachofchildren.
•Forbestresults,useonlyclean,fresh,unleadedgasoline
withanoctaneratingof87orhigher((R+M)/2rating
method).
•Oxygenatedfuelwithupto10%ethanolor15%MTBE
byvolumeisacceptable.
•Donotuseethanolblendsofgasoline(suchasE15
orE85)withmorethan10%ethanolbyvolume.
Performanceproblemsand/orenginedamagemayresult
whichmaynotbecoveredunderwarranty.
•Donotusegasolinecontainingmethanol.
•Donotstorefueleitherinthefueltankorfuelcontainers
overthewinterunlessafuelstabilizerisused.
Important:Toreducestartingproblems,addfuel
stabilizertothefuelallseason,mixingitwithgasoline
lessthan30daysold.
6
Figure7
CheckingtheEngineOilLevel
ServiceInterval:Beforeeachuseordaily
Max.ll:16oz.(0.47l),type:10W-30orSAE30detergent
oilwithanAPIserviceclassicationofSJorhigher.
1.Movethemachinetoalevelsurface.
2.Removethedipstick(Figure8).
Figure8
3.Wipeoffthedipstickendwithacleancloth.
4.Insertthedipstickintotheoil-lltube.
5.Removethedipstickandreadtheoillevel;referto
Figure8.
•IftheoillevelisbelowtheAddmark,addasmall
amountofoilslowlytotheoil-lltube,andthen
repeatsteps3through5untiltheoillevelonthe
dipstickisattheFullmark.
•IftheoillevelisabovetheFullmark,drainthe
excessoiluntiltheoillevelonthedipstickisat
theFullmark.Todraintheexcessoil,referto
ChangingtheEngineOil(page11).
Important:Iftheoillevelinthecrankcaseis
toolowortoohighandyouruntheengine,
youmaydamagetheengine.
6.Installthedipsticksecurely.
AdjustingtheCuttingHeight
WARNING
Adjustingthecuttingheightmaybringyouinto
contactwiththemovingblade,causingserious
injury.
•Stoptheengineandwaitforallmovingparts
tostop.
•Donotputyourngersunderthehousingwhen
adjustingthecuttingheight.
CAUTION
Iftheenginehasbeenrunning,themuferwillbe
hotandcanseverelyburnyou.Keepawayfromthe
hotmufer.
Adjustthecuttingheightasdesired.Setall4wheelstothe
sameheight.
Note:Toraiseorlowerthemachine,movethecutting-height
leversasshowninFigure9forModel10630orFigure10for
Model10632.
Figure9
Model10630only
1.Raisethemachine2.Lowerthemachine
Figure10
Model10632only
1.Raisethemachine2.Lowerthemachine
7
Note:Thecuttingheightsettingsare1inch(25mm);1-1/2
inch(38mm);2inches(51mm);2-1/2inches(64mm);3
inches(76mm);3-1/2inches(89mm);and4inches(102
mm).
StartingtheEngine
1.Holdtheblade-controlbar(Figure11)againstthe
handle.
Figure11
1.Blade-controlbar
2.Pullrecoil-starthandle(Figure12).
Figure12
Note:Ifthemachinedoesnotstartafterseveral
attempts,contactanAuthorizedServiceDealer.
UsingtheSelf-propelDrive
Tooperatetheself-propeldrive,squeezetheself-propeldrive
bar(Figure13)towardthehandleandholdit.
Figure13
1.Self-propeldrivebar
Todisengagetheself-propeldrive,releasetheself-propel
drivebar.
Note:Themaximumself-propelgroundspeedisxed.To
reducethegroundspeed,increasethespacebetweenthe
self-propeldrivebarandthehandle.
StoppingtheEngine
ServiceInterval:Beforeeachuseordaily
Tostoptheengine,releasetheblade-controlbar(Figure14).
Important:Whenyoureleasetheblade-controlbar,
boththeengineandbladeshouldstopwithin3seconds.
Iftheydonotstopproperly,stopusingyourmachine
immediatelyandcontactanAuthorizedServiceDealer.
Figure14
MulchingtheClippings
Yourmachinecomesfromthefactoryreadytomulchthe
grassandleafclippingsbackintothelawn.
Ifthegrassbagisonthemachine,removeitbeforemulching
theclippings.RefertoRemovingtheGrassBag(page9).
BaggingtheClippings
Usethegrassbagwhenyouwanttocollectgrassandleaf
clippingsfromthelawn.
WARNING
Aworngrassbagcouldallowsmallstonesand
othersimilardebristobethrownintheoperator'sor
bystander'sdirectionandresultinseriouspersonal
injuryordeathtotheoperatororbystanders.
Checkthegrassbagfrequently.Ifitisdamaged,
installanewLawn-Boyreplacementbag.
WARNING
Thebladeissharp;contactingthebladecanresult
inseriouspersonalinjury.
Stoptheengineandwaitforallmovingpartstostop
beforeleavingtheoperatingposition.
8
InstallingtheGrassBag
1.Liftupthereardeector(Figure15).
Figure15
1.Reardeector
2.Insertthegrass-baghandleontothenotchesonthe
handlebrackets(Figure15).
RemovingtheGrassBag
1.Liftupthereardeector(Figure15).
2.Liftthegrass-baghandleoutfromthenotchesonthe
handlebracketsandremovethebagfromthemachine.
3.Closethereardeector.
OperatingTips
GeneralMowingTips
•Cleartheareaofsticks,stones,wire,branches,andother
debristhatthebladecouldhit.
•Avoidstrikingsolidobjectswiththeblade.Never
deliberatelymowoveranyobject.
•Ifthemachinestrikesanobjectorstartstovibrate,
immediatelystoptheengine,disconnectthewirefrom
thesparkplug,andexaminethemachinefordamage.
•Forbestperformance,installanewbladebeforethe
cuttingseasonbegins.
•ReplacethebladewhennecessarywithaLawn-Boy
replacementblade.
CuttingGrass
•Cutonlyaboutathirdofthegrassbladeatatime.Donot
cutbelowthe2inch(51mm)settingunlessthegrassis
sparseoritislatefallwhengrassgrowthbeginstoslow
down.RefertoAdjustingtheCuttingHeight(page7).
•Whencuttinggrassover6inches(15cm)tall,mowatthe
highestcuttingheightsettingandwalkslower;thenmow
againatalowersettingforthebestlawnappearance.If
thegrassistoolong,themachinemayplugandcause
theenginetostall.
•Mowonlydrygrassorleaves.Wetgrassandleavestend
toclumpontheyardandcancausethemachinetoplug
ortheenginetostall.
WARNING
Wetgrassorleavescancauseseriousinjuryif
youslipandcontacttheblade.Mowonlyindry
conditions.
•Alternatethemowingdirection.Thishelpsdispersethe
clippingsoverthelawnforevenfertilization.
•Ifthenishedlawnappearanceisunsatisfactory,tryone
ormoreofthefollowing:
–Replacethebladeorhaveitsharpened.
–Walkataslowerpacewhilemowing.
–Raisethecuttingheightonyourmachine.
–Cutthegrassmorefrequently.
–Overlapcuttingswathsinsteadofcuttingafullswath
witheachpass.
–Setthecuttingheightonthefrontwheelsonenotch
lowerthantherearwheels.Forexample,setthefront
wheelsat2inches(51mm)andtherearwheelsat
2-1/2inches(64mm).
9
Maintenance
Note:Determinetheleftandrightsidesofthemachinefromthenormaloperatingposition.
RecommendedMaintenanceSchedule(s)
MaintenanceService
Interval
MaintenanceProcedure
Aftertherst5hours
•Changetheengineoil.
Beforeeachuseordaily
•Checktheengineoillevel.
•Ensurethattheenginestopswithin3secondsafterreleasingtheblade-controlbar.
Aftereachuse
•Cleangrassclippingsanddirtfromunderthemachine.
Every25hours
•Replacetheair-cleanerelement(morefrequentlywhenoperatingthemachinein
dustyordirtyoperatingconditions).
Every100hours
•Cleanthecoolingsystem(refertoyourengineowner'smanual).
•Replacethesparkplug.
Beforestorage
•Emptythefueltankbeforerepairsasdirectedandbeforeannualstorage.
Yearly
•Changetheengineoil.
•Replacethebladeorhaveitsharpened(morefrequentlyiftheedgedullsquickly).
•RefertoyourEngineOperator'sManualforanyadditionalyearlymaintenance
procedures.
Important:Refertoyour
EngineOperator'sManual
foradditionalmaintenanceprocedures.
PreparingforMaintenance
1.Stoptheengineandwaitforallmovingpartstostop.
2.Disconnectthespark-plugwirefromthesparkplug
(Figure16)beforeperforminganymaintenance
procedure.
Figure16
1.Spark-plugwire
3.Afterperformingthemaintenanceprocedure(s),
connectthespark-plugwiretothesparkplug.
Important:Beforetippingthemachinetochange
theoilorreplacetheblade,allowthefueltankto
rundrythroughnormalusage.Ifyoumusttip
themachinepriortorunningoutoffuel,usea
handfuelpumptoremovethefuel.Alwaystipthe
machineontoitssidewiththedipstickdown.
WARNING
Tippingthemachinemaycausethefuelto
leak.Gasolineisammable,explosiveand
cancausepersonalinjury.
Runtheenginedryorremovethegasoline
withahandpump;neversiphon.
10
ServicingtheAirCleaner
ServiceInterval:Every25hours/Yearly(whichevercomes
rst)—Replacetheair-cleanerelement
(morefrequentlywhenoperatingthe
machineindustyordirtyoperating
conditions).
1.Performthepre-maintenanceprocedures;referto
PreparingforMaintenance(page10).
2.Pressthebuttonontheaircleanercover(Figure17)
andopenthecover.
Figure17
1.Air-cleanerhousing3.Air-cleanercover
2.Air-cleanerelement
3.Replacetheair-cleanerelement.
4.Installtheair-cleanercover.
ChangingtheEngineOil
ServiceInterval:Aftertherst5hours
Yearly
Runtheengineafewminutesbeforechangingtheoiltowarm
it.Warmoilowsbetterandcarriesmorecontaminants.
1.Performthepre-maintenanceprocedures;referto
PreparingforMaintenance(page10).
2.Tipthemachineontoitsside,withthedipstickdown,
thenremovethedipsticktodraintheusedoilout
throughtheoil-lltube(Figure18).
Figure18
3.Afterdrainingtheusedoil,returnthemachinetothe
normaloperatingposition.
4.Removethedipstickandpourabout3/4ofthe
crankcasecapacityofoilintotheoil-lltube.
Note:Max.ll:16oz.(0.47l),type:10W-30orSAE
30detergentoilwithanAPIserviceclassicationof
SJorhigher.
5.Wipeoffthedipstickendwithacleancloth.
6.Insertthedipstickintotheoil-lltube.
7.Removethedipstickandreadtheoillevelonthe
dipstick(Figure19).
Figure19
•IftheoillevelisbelowtheAddmark,addasmall
amountofoilslowlytotheoil-lltube,andthen
repeatsteps5through7untiltheoillevelonthe
dipstickisattheFullmark.
•IftheoillevelisabovetheFullmark,drainthe
excessoiluntiltheoillevelonthedipstickisatthe
Fullmark.
Important:Iftheoillevelinthecrankcaseis
toolowortoohighandyouruntheengine,
youmaydamagetheengine.
11
8.Installthedipsticksecurely.
9.Recycletheusedoilproperly.
ReplacingtheBlade
ServiceInterval:Yearly
Important:
Youwillneedatorquewrenchtoinstallthe
bladeproperly
.Ifyoudonothaveatorquewrenchor
areuncomfortableperformingthisprocedure,contact
anAuthorizedServiceDealer.
Examinethebladewheneveryourunoutofgasoline.Ifthe
bladeisdamagedorcracked,replaceitimmediately.Ifthe
bladeedgeisdullornicked,haveitsharpenedorreplaceit.
WARNING
Thebladeissharp;contactingthebladecanresult
inseriouspersonalinjury.
•Disconnectthewirefromthesparkplug.
•Weargloveswhenservicingtheblade.
1.Disconnectthespark-plugwirefromthesparkplug.
RefertoPreparingforMaintenance(page10).
2.Tipthemachineontoitsside,withtheairlterup.
3.Useablockofwoodtoholdthebladesteady.
4.Removetheblade(turnthebladebolt
counterclockwise),savingallthemounting
hardware.
5.Installthenewblade(turnthebladeboltclockwise)
andallmountinghardware(Figure20).
Figure20
Important:Positionthecurvedendsoftheblade
topointtowardthemachinehousing.
6.Useatorquewrenchtotightenthebladeboltto
60ft-lb(82N-m).
Important:Abolttorquedto60ft-lb(82N-m)is
verytight.Whileholdingthebladewithablock
ofwood,putyourweightbehindtheratchetor
wrenchandtightentheboltsecurely.Thisboltis
verydifculttoovertighten.
AdjustingtheSelf-propelDrive
Cable
Wheneveryouinstallanewself-propelcableorifthe
self-propeldriveisoutofadjustment,adjusttheself-propel
drivecable.
1.Loosenthecable-supportnut(Figure21).
Figure21
1.1to1-1/2inches(25to38
mm)
4.Cable-supportnut
2.Self-propeldrivebar5.Cablesupport
3.Cablejacket
2.Holdtheself-propelbail1to1-1/2inches(25to38
mm)fromthehandle(Figure21).
3.Pulldownthecablejacket(towardthemachine)until
thereisnoslackinthecable(Figure21).
4.Tightenthenutonthecablesupport.
5.Releasetheself-propeldrivebarandensurethatthe
cableisloose.
Note:Thecablemustbeloosewiththeself-propel
drivebarinthereleasedposition;otherwise,the
machinemaycreepwhenyoudisengagethebar.
12
Cleaningtheundersideofthe
Machine
ServiceInterval:Aftereachuse
WARNING
Themachinemaydislodgematerialfromunderthe
machinehousing.
•Weareyeprotection.
•Stayintheoperatingposition(behindthe
handle).
•Donotallowbystandersinthearea.
1.Withtheenginerunningonaatpavedsurface,spray
astreamofwaterinfrontoftherightrearwheel
(Figure22).
Thewaterwillsplashintothepathoftheblade,
cleaningouttheclippings.
Figure22
2.Whennomoreclippingscomeout,stopthewaterand
movethemachinetoadryarea.
3.Runtheengineforafewminutestodrythehousing
topreventitfromrusting.
Storage
Storethemachineinacool,clean,dryplace.
PreparingtheMachinefor
Storage
WARNING
Gasolinevaporscanexplode.
•Donotstoregasolinemorethan30days.
•Donotstorethemachineinanenclosurenear
anopename.
•Allowtheenginetocoolbeforestoringit.
1.Onthelastrefuelingoftheyear,addfuelstabilizerto
thefuelasdirectedbytheenginemanufacturer.
2.Runthemachineuntiltheenginestopsfromrunning
outoffuel.
3.Primetheengineandstartitagain.
4.Allowtheenginetorununtilitstops.Whenyoucan
nolongerstarttheengine,itissufcientlydry.
5.Disconnectthewirefromthesparkplug.
6.Removethesparkplug,add1oz.(30ml)ofoilthrough
thesparkplughole,andpullthestarterropeslowly
severaltimestodistributeoilthroughoutthecylinder
topreventcylindercorrosionduringtheoff-season.
7.Installthesparkplugandtightenitwithatorque
wrenchto15ft-lb(20N-m).
8.Tightenallnuts,bolts,andscrews.
13
FoldingtheHandle
WARNING
Foldingorunfoldingthehandleimproperlycan
damagethecables,causinganunsafeoperating
condition.
•Donotdamagethecableswhenfoldingor
unfoldingthehandle.
•Ifacableisdamaged,contactanAuthorized
ServiceDealer.
1.Loosenthehandleknobsuntilyoucanmovethe
handlefreely(Figure23).
Figure23
1.Handleknob(2)
2.MovethehandleforwardasshowninFigure23.
RemovingtheMachinefrom
Storage
Connectthewiretothesparkplug.
14
Notes:
15
TheLawn-BoyNo-WorryWarranty
ATwo-YearFullWarranty(45dayLimitedWarrantyforCommercialUse)
20in.Mulching/
RearBagging
LawnMower
TheLawn-BoyTru-StartCommitment
AThree-YearFullWarranty(NotapplicableforCommercialUse)
ConditionsandProductsCovered
undertheNo-WorryWarranty
Lawn-Boyanditsafliate,Lawn-BoyWarrantyCompany,pursuanttoan
agreementbetweenthem,jointlypromisetorepairanyLawn-BoyProduct
usedforresidentialpurposes*,ifdefectiveinmaterialsorworkmanship
orifitstopsfunctioningduetothefailureofacomponentfortheperiods
listedbelow.
ProductsWarrantyPeriod
ProductandAttachments2yearwarranty
Engines3yearwarranty
Batteries1year
WearItems(Belts,blades,
bladeadaptors,
grassbags,cables,andwheels)
90days
LimitedWarranty
undertheNo-WorryWarrantyforCommercialUse
Gas-poweredLawn-BoyProductsusedatmorethanonelocation,orused
forinstitutionalorrentaluse,arewarrantedfor45daysagainstdefects
inmaterialsorworkmanship.Componentsfailingduetonormalwear
arenotcoveredbythiswarranty.
CoverageundertheTru-StartCommitment
Lawn-Boy®Inc.anditsafliate,Lawn-BoyWarrantyCompany,pursuant
toanagreementbetweenthem,jointlypromisethatyourTru-Startengine,
whenusedforresidentialpurposes*,willstartontherstorsecondpull
forthree(3)yearsfromthedateofpurchase,ifyouprovidetheroutine
maintenanceitrequires,orwewillxitfreeofcharge.
ThisLawn-BoyCommitmentdoesnotapplywhentheproductisused
commercially.*
Thefollowingappliestoboth
theNo-WorryWarrantyandtheTru-StartCommitment
OwnerResponsibilities
YoumustmaintainyourLawn-BoyProductbyfollowingthemaintenance
proceduresdescrbedintheOperator'sManual.Suchroutine
maintenance,whetherperformedbyadealerorbyyou,isatyourexpense.
ItemsandConditionsNotCovered
Thereisnootherexpresswarrantyexceptforspecialemissionsystem
coverageonsomeproducts.Thisexpresswarrantydoesnotcoverthe
following:
•Anyproductorpartwhichhasbeenalteredormisusedand
requiresreplacementorrepairduetoanaccidentorlackofproper
maintenance
•Pickupanddeliverycharges
•Operationalmisuse,neglect,oraccidents
•RepairsorattemptedrepairsbyanyoneotherthananAuthorized
Lawn-BoyServiceDealer
•Repairsoradjustmentstocorrectstartingdifcultiesduetothe
following:
–Failuretofollowpropermaintenanceprocedures
–Contaminantsinthefuelsystem
–Failuretodrainthefuelsystempriortoanyperiodofnon-use
overonemonth
•Specialoperationalconditionswherestartingmayrequiremorethan
twopulls:
–Firsttimestartsafterextendedperiodofnon-useoveronemonth
orseasonalstorage
–Improperstartingprocedure
InstructionsforObtainingWarrantyService
IfyouthinkthatyourLawn-BoyProductcontainsadefectinmaterialsor
workmanship,orifanormal,able-bodiedadultcannolongerstartyour
product’sengineinoneortwopulls,followthisprocedure:
1.ContactanyAuthorizedLawn-BoyServiceDealertoarrangeservice
attheirdealership.Tolocateadealerconvenienttoyou,referto
theYellowPagesofyourtelephonedirectory(lookunder“Lawn
Mowers”)oraccessourwebsiteatwww.Lawn-Boy.com.Youmay
alsocallthenumberslistedinitem#3tousethe24-hourLawn-Boy
Dealerlocatorsystem.
2.Bringtheproductandyourproofofpurchase(salesreceipt)tothe
ServiceDealer.Thedealerwilldiagnosetheproblemanddetermine
ifitiscoveredunderwarranty.
3.IfforanyreasonyouaredissatisedwiththeServiceDealer’s
analysisorwiththeassistanceprovided,contactusat:Customer
CareDepartment,ConsumerDivision,Lawn-BoyWarranty
Company,8111LyndaleAvenueSouth,Bloomington,MN
55420-1196;orcallustollfreeat866-216-6032(U.S.customers)or
866-216-6031(Canadiancustomers).
GeneralConditions
Allrepairscoveredbythesewarrantiesmustbeperformedbyan
AuthorizedLawn-BoyServiceDealerusingLawn-Boyapproved
replacementparts.
NeitherLawn-Boy®Inc.norLawn-BoyWarrantyCompanyisliable
forindirect,incidental,orconsequentialdamagesinconnectionwith
theuseoftheLawn-BoyProductscoveredbythesewarranties,
includinganycostorexpenseofprovidingsubstituteequipment
orserviceduringreasonableperiodsofmalfunctionornon-use
pendingcompletionofrepairsunderthesewarranties.
Somestatesdonotallowexclusionsofincidentalorconsequential
damages,sotheaboveexclusionsmaynotapplytoyou.
Thiswarrantygivesyouspeciclegalrights,andyoumayalsohaveother
rightswhichvaryfromstatetostate.
CountriesOtherthantheUnitedStatesorCanada
CustomerswhohavepurchasedLawn-BoyproductsexportedfromtheUnitedStatesorCanadashouldcontacttheirLawn-BoyDistributor(Dealer)
toobtainguaranteepoliciesforyourcountry,province,orstate.IfforanyreasonyouaredissatisedwithyourDistributor'sserviceorhavedifculty
obtainingguaranteeinformation,contacttheLawn-Boyimporter.Ifallotherremediesfail,youmaycontactusatLawn-BoyWarrantyCompany.
*Residentialpurposesmeansuseoftheproductonthesamelotasyourhome.Useatmorethanonelocation,orinstitutionalorrentaluse,isconsidered
commercialuseandthecommercialusewarrantywouldapply.
374-0256RevD
/