Lawn-Boy 10734 User manual

FormNo.3379-226RevA

21inMulching/RearBaggingLawn

Mower

ModelNo.10730—SerialNo.314000001andUp

ModelNo.10732—SerialNo.314000001andUp

ModelNo.10734—SerialNo.314000001andUp

ModelNo.17730—SerialNo.314000001andUp

ModelNo.17732—SerialNo.314000001andUp

ModelNo.17734—SerialNo.314000001andUp

Operator'sManual

Receiveafreeside-dischargechuteby

completingtheDischargeChuteOrder

Formwhenyouregisteryourproductat

www.Lawn-Boy.com!Pleaseallowfourtove

weeksfordelivery.

Introduction

Thisrotary-blade,walk-behindlawnmowerisintended

tobeusedbyresidentialhomeowners.Itisdesigned

primarilyforcuttinggrassonwell-maintainedlawns

onresidentialproperties.Itisnotdesignedforcutting

brushorforagriculturaluses.

Readthisinformationcarefullytolearnhowtooperateand

maintainyourproductproperlyandtoavoidinjuryand

productdamage.Youareresponsibleforoperatingthe

productproperlyandsafely.

YoumaycontactLawn-Boydirectlyatwww.Lawn-Boy.com

forproductandaccessoryinformation,helpndingadealer,

ortoregisteryourproduct.

Wheneveryouneedservice,genuineLawn-Boyparts,or

additionalinformation,contactanAuthorizedServiceDealer

orLawn-BoyCustomerServiceandhavethemodeland

serialnumbersofyourproductready.Figure1identiesthe

locationofthemodelandserialnumbersontheproduct.

Writethenumbersinthespaceprovided.

g024069

Figure1

1.Modelandserialnumberplate

ModelNo.

SerialNo.

Thismanualidentiespotentialhazardsandhassafety

messagesidentiedbythesafetyalertsymbol(Figure2),

whichsignalsahazardthatmaycauseseriousinjuryordeath

ifyoudonotfollowtherecommendedprecautions.

Figure2

1.Safetyalertsymbol

Thismanualuses2wordstohighlightinformation.

Importantcallsattentiontospecialmechanicalinformation

andNoteemphasizesgeneralinformationworthyofspecial

attention.

8111LyndaleAvenueSouth

Bloomington,MN55420

Registeratwww.LawnBoy.com.

OriginalInstructions(EN)

PrintedintheUSA

AllRightsReserved

*3379-226*A

WARNING

CALIFORNIA

Proposition65Warning

Thisproductcontainsachemicalorchemicals

knowntotheStateofCaliforniatocausecancer,

birthdefects,orotherreproductiveharm.

Theengineexhaustfromthisproduct

containschemicalsknowntotheStateof

Californiatocausecancer,birthdefects,

orotherreproductiveharm.

Important:Thisengineisnotequippedwithaspark

arrestermufer.ItisaviolationofCaliforniaPublic

ResourceCodeSection4442touseoroperatetheengine

onanyforest-covered,brush-covered,orgrass-covered

land.Otherstatesorfederalareasmayhavesimilarlaws.

ThissparkignitionsystemcomplieswithCanadianICES-002.

Theenclosed

Engine Owner's Man ual

issuppliedfor

informationregardingtheUSEnvironmentalProtection

Agency(EPA)andtheCaliforniaEmissionControl

Regulationofemissionsystems,maintenance,and

warranty.Replacementsmaybeorderedthroughthe

enginemanufacturer.

NetTorque

Thegrossornettorqueofthisenginewaslaboratoryrated

bytheenginemanufacturerinaccordancewiththeSocietyof

AutomotiveEngineers(SAE)J1940.Asconguredtomeet

safety,emission,andoperatingrequirements,theactualengine

torqueonthisclassofmowerwillbesignicantlylower.

Contents

Introduction..................................................................1

GeneralOperation..................................................2

SlopeOperation......................................................3

Children.................................................................3

Service...................................................................3

SafetyandInstructionalDecals.................................4

Setup............................................................................6

UnfoldingtheHandle..............................................6

InstallingtheRecoil-starterRopeintheRope

Guide.................................................................6

FillingtheEnginewithOil........................................6

ChargingtheBattery(Electric-startmodels

only)..................................................................7

ProductOverview..........................................................7

Operation.....................................................................8

Attachments/Accessories.........................................8

FillingtheFuelTank................................................8

CheckingtheEngine-oilLevel...................................8

AdjustingtheCuttingHeight....................................9

StartingtheEngine..................................................9

UsingtheSelf-propelDrive(Self-propelmodels

only).................................................................10

StoppingtheEngine...............................................10

MulchingtheClippings...........................................10

BaggingtheClippings.............................................10

OperatingTips......................................................11

Maintenance.................................................................12

RecommendedMaintenanceSchedule(s)......................12

PreparingforMaintenance.......................................12

ServicingtheAirCleaner.........................................13

ChangingtheEngineOil.........................................13

ChargingtheBattery(Electric-startmodels

only).................................................................14

ReplacingtheFuse(Electric-startmodels

only).................................................................14

ReplacingtheBlade................................................15

AdjustingtheSelf-propelDriveCable(Self-propel

modelsonly)......................................................16

CleaningtheUndersideoftheMachine......................16

Storage........................................................................17

PreparingtheMachineforStorage............................17

FoldingtheHandle.................................................17

RemovingtheMachinefromStorage.........................17

Safety

ThismachinemeetsorexceedstheCPSCbladesafety

requirementsforwalk-behindrotarylawnmowers.

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.

•Allowonlyresponsibleadults,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.

•Operatemachineonlyindaylightorgoodarticiallight.

•Donotoperatethemachinewhileundertheinuence

ofalcoholordrugs.

•Neveroperatethemowerinwetgrass.Alwaysbesureof

yourfooting;walk;neverrun.

•Disengagethedrivesystem,ifsoequipped,before

startingtheengine.

•Ifthemachineshouldstarttovibrateabnormally,stop

theengineandcheckforthecauseimmediately.Vibration

isgenerallyawarningoftrouble.

•Alwaysweareyeprotectionwhenoperatingthemachine.

•Lightningcancausesevereinjuryordeath.Ifyousee

lightningorhearthunderinthearea,donotoperatethe

machine;seekshelter.

•Seethemanufacturer'sinstructionsforproperoperation

andinstallationofaccessories.Useonlyaccessories

approvedbythemanufacturer.

SlopeOperation

Slopesareamajorfactorrelatedtoslip-and-fallaccidents,

whichcanresultinsevereinjury.Operationonallslopes

requireextracaution.Ifyoufeeluneasyonaslope,donot

mowit.

•Mowacrossthefaceofslopes;neverupanddown.

Exerciseextremecautionwhenchangingdirectionon

slopes.

•Watchforholes,ruts,bumps,rocks,orotherhidden

objects.Uneventerraincouldcauseaslip-and-fall

accident.Tallgrasscanhideobstacles.

•Donotmowonwetgrassorexcessivelysteepslopes.

Poorfootingcouldcauseaslip-and-fallaccident.

•Donotmowneardrop-offs,ditches,orembankments.

Youcouldloseyourfootingorbalance.

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.

•Neverremovethegascaporaddfuelwiththeengine

running.Allowtheenginetocoolbeforerefueling.

•Neverrefuelthemachineindoors.

•Neverstorethemachineorfuelcontainerwherethereis

anopename,spark,orpilotlight,suchasonawater

heateroronotherappliances.

•Neverllcontainersinsideavehicleoronatruckor

trailerbedwithaplasticliner.Alwaysplacecontainerson

thegroundawayfromyourvehiclebeforelling.

•Removegas-poweredequipmentfromthetruckortrailer

andrefuelitontheground.Ifthisisnotpossible,then

refuelsuchequipmentwithaportablecontainerrather

thanfromagasolinedispensernozzle.

•Keepthenozzleincontactwiththerimofthefueltank

orcontaineropeningatalltimesuntilfuelingiscomplete.

Donotuseanozzlelock-opendevice.

•Iffuelisspilledonclothing,changeclothingimmediately.

•Neveroverllfueltank.Replacethegascapandtighten

itsecurely.

WARNING

Exhaustcontainscarbonmonoxide,anodorless,

deadlypoisonthatcankillyou.

Donotruntheengineindoorsorinanenclosed

area.

GeneralService

•Neveroperatethemachineinaclosedarea.

•Keepallnutsandboltstighttobesuretheequipmentis

insafeworkingcondition.

•Neverremoveortamperwithsafetydevices.Checktheir

properoperationregularly.Neverdoanythingtointerfere

withtheintendedfunctionofasafetydeviceortoreduce

theprotectionprovidedbyasafetydevice.

•Keepthemachinefreeofgrass,leaves,orotherdebris

buildup.Cleanupoilorfuelspillageandremoveany

fuel-soakeddebris.Allowthemachinetocoolbefore

storingit.

•Ifyoustrikeaforeignobject,stopandinspectthe

machine.Repairthemachine,ifnecessary,beforestarting

it.

•Nevermakeanyadjustmentsorrepairswiththeengine

running.Disconnectthespark-plugwireandground

againsttheenginetopreventunintendedstarting.

•Checkgrasscatchercomponentsandthedischarge

guardfrequently,andreplacethemwithmanufacturer's

recommendedparts,whennecessary.

•Mowerbladesaresharp.Wrapthebladeorweargloves,

anduseextracautionwhenservicingthem.

•Donotchangetheenginegovernorsettingoroverspeed

theengine.

•Maintainorreplacesafetyandinstructionlabels,as

necessary.

•Tobestprotectyourinvestmentandmaintainoptimal

performanceofyourLawn-Boyequipment,counton

Lawn-Boygenuineparts.Whenitcomestoreliability,

Lawn-Boydeliversreplacementpartsdesignedtothe

exactengineeringspecicationsofourequipment.For

peaceofmind,insistonLawn-Boygenuineparts.

Hauling

•Usecarewhenloadingorunloadingthemachineintoa

trailerortruck.

•Usefull-widthrampsforloadingthemachineintoa

trailerortruck.

•Tiethemachinedownsecurelyusingstraps,chains,cable,

orropes.Boththefrontandtherearstrapsshouldbe

directeddownandoutwardfromthemachine.

SafetyandInstructionalDecals

Important:Safetyandinstructiondecalsarelocatednearareasofpotentialdanger.Replacedamageddecals.

Manufacturer'sMark

1.Indicatesthatthebladeisidentiedasapartfromthe

originalmachinemanufacturer.

94-8072

104-7953(Electric-startmodelsonly)

1.Warning—readtheOperator'sManualforinformationonchargingthebattery;containslead;donotdiscard.

2.ReadtheOperator'sManual.

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.Removethehandleknobsfromthemachinehousing

(Figure3).

Important:Routethecablestotheoutsideofthe

handleasyouinstallthehandle.

Figure3

1.Handleknob(2)

2.Movethehandletotheoperatingposition(Figure3).

3.Installthehandleknobsandtightenthemrmlyby

hand.

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:0.65L(22oz),type:10W-30orSAE

30detergentoilwithanAPIserviceclassicationof

SJorhigher.

G020008

Figure5

Engineforelectric-startmodelsnotshown

3.Wipeoffthedipstickwithacleancloth.

4.Insertthedipstickintotheoil-lltube,butdonot

screwitin.

5.Removethedipstickandreadtheoillevelonthe

dipstick(Figure5).

•Iftheoillevelislow,addasmallamountofoil

slowlytotheoil-lltube,andthenrepeatsteps

3through5untiltheoillevelonthedipstickis

correct.

•Iftheoillevelishigh,draintheexcessoiluntilthe

oillevelonthedipstickiscorrect.Todrainthe

excessoil,referto

ChangingtheEngineOil(page

13).

Important:Iftheoillevelinthecrankcaseis

toolowortoohighandyouruntheengine,

youmaydamagetheengine.

6.Installthedipsticksecurely.

Important:

Change the engine oil after the r st 5

operating hour s

;changeityearlythereafter.Refer

toChangingtheEngineOil(page13).

ChargingtheBattery

(Electric-startmodelsonly)

RefertoChargingtheBattery(Electric-startmodelsonly)

(page14)

ProductOverview

Figure6

Electric-startmodelshown

1.Self-propel-drivebar

(self-propelmodelsonly)

7.Ignitionkey(electric-start

modelsonly)

2.Recoil-starthandle

8.Battery(notshown;

electric-startmodelsonly)

3.Grassbag

9.Fuel-tankcap

4.Oilll/Dipstick10.Airlter

5.Cutting-heightlever(2)11.Sparkplug

6.Blade-controlbar12.Batterycharger

(electric-startmodels

only)

Operation

Attachments/Accessories

AselectionofLawn-Boyapprovedattachmentsand

accessoriesisavailableforusewiththemachinetoenhance

andexpanditscapabilities.ContactyourAuthorizedService

DealerorDistributororgotowww .Lawn-Boy.comforalist

ofallapprovedattachmentsandaccessories.

FillingtheFuelTank

DANGER

Gasolineisextremelyammableandexplosive.A

reorexplosionfromgasolinecanburnyouand

others.

•Topreventastaticchargefromignitingthe

gasoline,placethecontainerand/ormachine

directlyonthegroundbeforelling,notina

vehicleoronanobject.

•Fillthetankoutdoorswhentheengineiscold.

Wipeupspills.

•Donothandlegasolinewhensmokingoraround

anopenameorsparks.

•Storegasolineinanapprovedfuelcontainer,out

ofthereachofchildren.

•Forbestresults,useonlyclean,fresh(lessthan30days

old),unleadedgasolinewithanoctaneratingof87or

higher((R+M)/2ratingmethod).

•Oxygenatedfuelwithupto10%ethanolor15%MTBE

byvolumeisacceptable.

•Ethanol:Gasolinewithupto10%ethanol(gasohol)

or15%MTBE(methyltertiarybutylether)byvolume

isacceptable.EthanolandMTBEarenotthesame.

Gasolinewith15%ethanol(E15)byvolumeisnot

approvedforuse.Neverusegasolinethatcontains

morethan10%ethanolbyvolume,suchasE15

(contains15%ethanol),E20(contains20%ethanol),or

E85(containsupto85%ethanol).Usingunapproved

gasolinemaycauseperformanceproblemsand/orengine

damagewhichmaynotbecoveredunderwarranty.

•Donotusegasolinecontainingmethanol.

•Donotstorefueleitherinthefueltankorinfuel

containersoverthewinterunlessafuelstabilizerisused.

•Donotaddoiltogasoline.

Important:Toreducestartingproblems,addfuel

stabilizertothefuelallseason,mixingitwithgasoline

lessthan30daysold.

Figure7

CheckingtheEngine-oilLevel

ServiceInterval:Beforeeachuseordaily

Max.ll:0.65L(22oz),type:10W-30orSAE30detergent

oilwithanAPIserviceclassicationofSJorhigher.

1.Movethemachinetoalevelsurface.

2.Removethedipstick(

Figure8).

G020008

Figure8

Engineforelectric-startmodelsnotshown

3.Wipeoffthedipstickendwithacleancloth.

4.Insertthedipstickintotheoil-lltube,butdonot

screwitin.

5.Removethedipstickandreadtheoillevel;referto

Figure8.

•Iftheoillevelislow,addasmallamountofoil

slowlytotheoil-lltube,andthenrepeatsteps

3through5untiltheoillevelonthedipstickis

correct.

•Iftheoillevelishigh,draintheexcessoiluntilthe

oillevelonthedipstickiscorrect.Todrainthe

excessoil,refertoChangingtheEngineOil(page

13)

Important:Iftheoillevelinthecrankcaseis

toolowortoohighandyouruntheengine,

youmaydamagetheengine.

6.Installthedipsticksecurely.

AdjustingtheCuttingHeight

WARNING

Adjustingthecuttingheightmaybringyouinto

contactwiththemovingblade,causingserious

injury.

•Stoptheengineandwaitforallmovingparts

tostop.

•Donotputyourngersunderthehousingwhen

adjustingthecuttingheight.

CAUTION

Iftheenginehasbeenrunning,themuferwillbe

hotandcanseverelyburnyou.Keepawayfromthe

hotmufer.

AdjustingtheCuttingHeight

(High-wheelmodelsonly)

Adjustthecuttingheightasdesired.Setthefrontwheelsand

therearwheelstothesameheight.

Note:Toraiseorlowerthemachine,movethecutting-height

leversasshowninFigure9.

Figure9

1.Raisethemachine2.Lowerthemachine

Important:Thecuttingheightsettingsare32mm

(1-1/4inches);44mm(1-3/4inches);57mm(2-1/4

inches);70mm(2-3/4inches);83mm(3-1/4inches);

and95mm(3-3/4inches).

AdjustingtheCuttingHeight

(Regular-wheelmodelsonly)

Adjustthecuttingheightasdesired.Setthefrontwheelsand

therearwheelstothesameheight.

Note:Toraiseorlowerthemachine,movethecutting-height

leversasshownin

Figure10.

Figure10

1.Raisethemachine2.Lowerthemachine

Important:Thecuttingheightsettingsare32mm

(1-1/4inches);44mm(1-3/4inches);57mm(2-1/4

inches);70mm(2-3/4inches);83mm(3-1/4inches);

and95mm(3-3/4inches).

StartingtheEngine

1.Holdtheblade-controlbar(Figure11)againstthe

handle.

Figure11

1.Blade-controlbar

2.Turntheignitionkey(electric-startmodelsonly;refer

toFigure12)orpulltherecoil-starthandle(Figure13).

Figure12

Figure13

Note:Ifthemachinedoesnotstartafterseveral

attempts,contactanAuthorizedServiceDealer.

UsingtheSelf-propelDrive

(Self-propelmodelsonly)

Tooperatetheself-propeldrive,squeezetheself-propeldrive

bar(Figure14)towardthehandleandholdit.

Figure14

1.Self-propeldrivebar

Todisengagetheself-propeldrive,releasetheself-propel

drivebar.

Note:Themaximumself-propelgroundspeedisxed.To

reducethegroundspeed,increasethespacebetweenthe

self-propeldrivebarandthehandle.

StoppingtheEngine

ServiceInterval:Beforeeachuseordaily

Tostoptheengine,releasetheblade-controlbar(Figure15).

Note:Removetheignitionkeywhenyouleavethemachine

(electric-startmodelsonly).

Important:Whenyoureleasetheblade-controlbar,

boththeengineandbladeshouldstopwithin3seconds.

Iftheydonotstopproperly,stopusingyourmachine

immediatelyandcontactanAuthorizedServiceDealer.

Figure15

MulchingtheClippings

Yourmachinecomesfromthefactoryreadytomulchthe

grassandleafclippingsbackintothelawn.

Ifthegrassbagisonthemachine,removeitbeforemulching

theclippings.RefertoRemovingtheGrassBag(page11).

BaggingtheClippings

Usethegrassbagwhenyouwanttocollectgrassandleaf

clippingsfromthelawn.

WARNING

Aworngrassbagcouldallowsmallstonesandother

similardebristobethrownatyouorinthedirection

ofbystanders,resultinginseriouspersonalinjury

ordeathtoyouortobystanders.

Checkthegrassbagfrequently.Ifitisdamaged,

installanewLawn-Boyreplacementbag.

WARNING

Thebladeissharp;contactingthebladecanresult

inseriouspersonalinjury.

Stoptheengineandwaitforallmovingpartstostop

beforeleavingtheoperatingposition.

InstallingtheGrassBag

1.Liftupthereardeector(Figure16).

G024075

Figure16

1.Reardeector3.Rodend(2)

2.Notchinthehandle

bracket(2)

4.Grassbag

2.Inserttherodendsofthegrassbagintothenotches

inthehandlebrackets(Figure16).

3.Allowthereardeectortorestonthebag.

RemovingtheGrassBag

1.Liftupthereardeector(Figure16).

2.Liftthegrass-baghandleoutfromthenotchesonthe

handlebracketsandremovethebagfromthemachine.

3.Closethereardeector.

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

cutbelowthe44mm(1–3/4-inch)settingunlessthegrass

issparseoritislatefallwhengrassgrowthbeginstoslow

down.RefertoAdjustingtheCuttingHeight(page9).

•Whencuttinggrassover15cm(6inches)tall,mowatthe

highestcuttingheightsettingandwalkslower;thenmow

againatalowersettingforthebestlawnappearance.If

thegrassistoolong,themachinemayplugandcause

theenginetostall.

•Mowonlydrygrassorleaves.Wetgrassandleavestend

toclumpontheyardandcancausethemachinetoplug

ortheenginetostall.

WARNING

Wetgrassorleavescancauseseriousinjuryif

youslipandcontacttheblade.Mowonlyindry

conditions.

•Alternatethemowingdirection.Thishelpsdispersethe

clippingsoverthelawnforevenfertilization.

•Ifthenishedlawnappearanceisunsatisfactory,tryone

ormoreofthefollowing:

–Replacethebladeorhaveitsharpened.

–Walkataslowerpacewhilemowing.

–Raisethecuttingheightonyourmachine.

–Cutthegrassmorefrequently.

–Overlapcuttingswathsinsteadofcuttingafullswath

witheachpass.

–Setthecuttingheightonthefrontwheelsonenotch

lowerthantherearwheels.Forexample,setthefront

wheelsat57mm(2-1/4inches)andtherearwheels

at70mm(2-3/4inches).

Maintenance

Note:Determinetheleftandrightsidesofthemachinefromthenormaloperatingposition.

RecommendedMaintenanceSchedule(s)

MaintenanceService

Interval

MaintenanceProcedure

Aftertherst5hours

•Changetheengineoil.

Beforeeachuseordaily

•Checktheengineoillevel.

•Ensurethattheenginestopswithin3secondsafterreleasingtheblade-controlbar.

Aftereachuse

•Cleangrassclippingsanddirtfromunderthemachine.

Every25hours

•Checktheaircleanerfordirty,loose,ordamagedparts,andcleanorreplacethem

ifnecessary.

•Chargethebatteryfor24hours(electric-startmodelsonly).

Every100hours

•Replacetheair-cleanerelement(morefrequentlywhenoperatingthemachinein

dustyordirtyoperatingconditions).

•Cleanthecoolingsystem(refertoyourengineowner'smanual).

•Replacethesparkplug.

Beforestorage

•Emptythefueltankbeforerepairsasdirectedandbeforeannualstorage.

Yearly

•Changetheengineoil.

•Replacethebladeorhaveitsharpened(morefrequentlyiftheedgedullsquickly).

•RefertoyourEngineOperator'sManualforanyadditionalyearlymaintenance

procedures.

Important:Refertoyour

Engine Operator's Man ual

foradditionalmaintenanceprocedures.

PreparingforMaintenance

1.Stoptheengineandwaitforallmovingpartstostop.

2.Disconnectthespark-plugwirefromthesparkplug

(Figure17)beforeperforminganymaintenance

procedure.

Figure17

1.Spark-plugwire

3.Afterperformingthemaintenanceprocedure(s),

connectthespark-plugwiretothesparkplug.

Important:Beforetippingthemachinetochange

theoilorreplacetheblade,allowthefueltankto

rundrythroughnormalusage.Ifyoumusttip

themachinepriortorunningoutoffuel,usea

handfuelpumptoremovethefuel.Alwaystipthe

machineontoitssidewiththedipstickdown.

WARNING

Tippingthemachinemaycausethefuelto

leak.Gasolineisammable,explosiveand

cancausepersonalinjury.

Runtheenginedryorremovethegasoline

withahandpump;neversiphon.

ServicingtheAirCleaner

ServiceInterval:Every25hours/Yearly(whichevercomes

rst)—Checktheaircleanerfordirty,

loose,ordamagedparts,andcleanor

replacethemifnecessary.

Every100hours/Yearly(whichevercomes

rst)—Replacetheair-cleanerelement(more

frequentlywhenoperatingthemachineindustyor

dirtyoperatingconditions).

1.Performthepre-maintenanceprocedures;referto

PreparingforMaintenance(page12).

2.Pressthebuttonontheair-cleanercover(Figure18)

andopenthecover.

Figure18

1.Air-cleanercover3.Air-cleanerhousing

2.Paperelement4.Button

3.Removetheoldpaperelement.

4.Installthenewpaperelementintheair-cleanerhousing,

notinthecover.

5.Installtheair-cleanercover.

Note:Ensurethattheair-cleanercoverisfullylatched

intoplacebypullinggentlyontheuppercornersofthe

cover.Ifthecovercomesloose,repeatsteps4and5.

ChangingtheEngineOil

ServiceInterval:Aftertherst5hours

Yearly

Runtheengineafewminutesbeforechangingtheoiltowarm

it.Warmoilowsbetterandcarriesmorecontaminants.

1.Performthepre-maintenanceprocedures;referto

PreparingforMaintenance(page12).

2.Tipthemachineontoitsside,withthedipstickdown,

todraintheusedoiloutthroughtheoil-lltube(Figure

19).

Figure19

3.Removethedipstick.

4.Afterdrainingtheusedoil,returnthemachinetothe

normaloperatingposition.

5.Pourabout3/4ofthecrankcasecapacityofoilinto

theoil-lltube.

Note:Max.ll:0.59L(22oz),type:10W-30orSAE

30detergentoilwithanAPIserviceclassicationof

SJorhigher.

6.Wipeoffthedipstickendwithacleancloth.

7.Insertthedipstickintotheoil-lltube,butdonot

screwitin.

8.Removethedipstickandreadtheoillevelonthe

dipstick(Figure20).

G020008

Figure20

Engineforelectric-startmodelsnotshown

•Iftheoillevelislow,addasmallamountofoil

slowlytotheoil-lltube,andthenrepeatsteps

6through8untiltheoillevelonthedipstickis

correct.

•Iftheoillevelishigh,draintheexcessoiluntilthe

oillevelonthedipstickiscorrect.

Important:Iftheoillevelinthecrankcaseis

toolowortoohighandyouruntheengine,

youmaydamagetheengine.

9.Installthedipsticksecurely.

10.Recycletheusedoilproperly.

ChargingtheBattery

(Electric-startmodelsonly)

ServiceInterval:Every25hours

WARNING

CALIFORNIA

Proposition65Warning

Batteryposts,terminals,andrelated

accessoriescontainleadandleadcompounds,

chemicalsknowntotheStateofCalifornia

tocausecancerandreproductiveharm.

Washhandsafterhandling.

Chargethebatteryfor24hoursinitially,thenmonthly(every

25starts)orasneeded.Alwaysusethechargerinasheltered

areaandchargethebatteryatroomtemperature(70°or22°

C)wheneverpossible.

1.Connectthechargertothewireharnesslocatedbelow

theignitionkey(Figure21).

Figure21

2.Plugthechargerintoawalloutlet.

Note:Whenthebatterynolongerholdsacharge,

recycleordisposeofthelead-acidbatteryaccording

tolocalcodes.

Note:Yourbatterychargermayhavea2-colorLEDdisplay

thatindicatesthefollowingstatesofcharging:

•Aredlightindicatesthatthechargerischargingthe

battery.

•Agreenlightindicatesthatthechargerisfullychargedor

thechargerisdisconnectedfromthebattery.

•Aashinglightthatalternatesbetweenredandgreen

indicatesthatthebatteryisnearlyfullycharged.Thisstate

lastsonlyafewminutesuntilthebatteryisfullycharged.

ReplacingtheFuse

(Electric-startmodelsonly)

Yourmachinecomeswithafusethatprotectstheelectric

starter.Ifthebatterydoesnotchargeortheenginedoesnot

runwiththeelectricstarter,thefusemaybeblown.Replace

itwitha40-ampplug-intypefuse.

Important:Youcannotstartthemachinewiththe

electricstarterorchargethebatteryunlessyouinstall

thefuse.

1.Unclipthebatterycoverandremoveit(Figure22).

Figure22

1.Batterycover3.Battery

2.Foam4.Fuseholder

2.Insertthefuseintothefuseholder(Figure23).

Figure23

3.Installthebatterycover.

ReplacingtheBlade

ServiceInterval:Yearly

Important:

Y ou will need a torque wr ench to install the

blade pr oper l y

.Ifyoudonothaveatorquewrenchor

areuncomfortableperformingthisprocedure,contact

anAuthorizedServiceDealer.

Examinethebladewheneveryourunoutofgasoline.Ifthe

bladeisdamagedorcracked,replaceitimmediately.Ifthe

bladeedgeisdullornicked,haveitsharpenedorreplaceit.

WARNING

Thebladeissharp;contactingthebladecanresult

inseriouspersonalinjury.

•Disconnectthewirefromthesparkplug.

•Weargloveswhenservicingtheblade.

1.Disconnectthespark-plugwirefromthesparkplug.

RefertoPreparingforMaintenance(page12).

2.Tipthemachineontoitsside,withtheairlterup.

3.Useablockofwoodtoholdthebladesteady.

4.Removetheblade(turnthebladebolt

counterclockwise),savingallthemounting

hardware.

5.Installthenewblade(turnthebladeboltclockwise)

andallmountinghardware(Figure24).

Figure24

Important:Positionthecurvedendsoftheblade

topointtowardthemachinehousing.

6.Useatorquewrenchtotightenthebladeboltto82

N-m(60ft-lb).

Important:Abolttorquedto82N-m(60ft-lb)is

verytight.Whileholdingthebladewithablock

ofwood,putyourweightbehindtheratchetor

wrenchandtightentheboltsecurely.Thisboltis

verydifculttoovertighten.

AdjustingtheSelf-propelDrive

Cable(Self-propelmodels

only)

Wheneveryouinstallanewself-propelcableorifthe

self-propeldriveisoutofadjustment,adjusttheself-propel

drivecable.

1.Loosenthecable-supportnut(Figure25).

Figure25

1.25to38mm(1to1-1/2

inches)

4.Cable-supportnut

2.Self-propeldrivebar5.Cablesupport

3.Cablejacket

2.Holdtheself-propelbail25to38mm(1to1-1/2

inches)fromthehandle(

Figure25).

3.Pulldownthecablejacket(towardthemachine)until

thereisnoslackinthecable(

Figure25).

4.Tightenthenutonthecablesupport.

5.Releasetheself-propeldrivebarandensurethatthe

cableisloose.

Note:Thecablemustbeloosewiththeself-propel

drivebarinthereleasedposition;otherwise,the

machinemaycreepwhenyoudisengagethebar.

CleaningtheUndersideofthe

Machine

ServiceInterval:Aftereachuse

WARNING

Themachinemaydislodgematerialfromunderthe

machinehousing.

•Weareyeprotection.

•Stayintheoperatingposition(behindthe

handle).

•Donotallowbystandersinthearea.

1.Withtheenginerunningonaatpavedsurface,spraya

streamofwaterinfrontoftherightrearwheel(

Figure

26).

Thewaterwillsplashintothepathoftheblade,

cleaningouttheclippings.

Figure26

2.Whennomoreclippingscomeout,stopthewaterand

movethemachinetoadryarea.

3.Runtheengineforafewminutestodrythehousing

topreventitfromrusting.

Storage

Storethemachineinacool,clean,dryplace.

PreparingtheMachinefor

Storage

WARNING

Gasolinevaporscanexplode.

•Donotstoregasolinemorethan30days.

•Donotstorethemachineinanenclosurenear

anopename.

•Allowtheenginetocoolbeforestoringit.

1.Onthelastrefuelingoftheyear,addfuelstabilizerto

thefuelasdirectedbytheenginemanufacturer.

2.Runthemachineuntiltheenginestopsfromrunning

outoffuel.

3.Primetheengineandstartitagain.

4.Allowtheenginetorununtilitstops.Whenyoucan

nolongerstarttheengine,itissufcientlydry.

5.Disconnectthewirefromthesparkplug.

6.Removethesparkplug,add30ml(1oz)ofoilthrough

thesparkplughole,andpullthestarterropeslowly

severaltimestodistributeoilthroughoutthecylinder

topreventcylindercorrosionduringtheoff-season.

7.Installthesparkplugandtightenitwithatorque

wrenchto20N-m(15ft-lb).

8.Tightenallnuts,bolts,andscrews.

9.Chargethebatteryfor24hours,thenunplugthe

batterychargeranstorethemachineinanunheated

area.Ifyoumuststorethemachineinaheatedarea,

youmustchargethebatteryevery90days(electric-start

modelsonly).

FoldingtheHandle

WARNING

Foldingorunfoldingthehandleimproperlycan

damagethecables,causinganunsafeoperating

condition.

•Donotdamagethecableswhenfoldingor

unfoldingthehandle.

•Ifacableisdamaged,contactanAuthorized

ServiceDealer.

1.Loosenthehandleknobsuntilyoucanmovethe

handlefreely(

Figure27).

Figure27

1.Handleknob(2)

2.MovethehandleforwardasshowninFigure27.

RemovingtheMachinefrom

Storage

1.Removethesparkplugandspintheenginerapidlyby

pullingtherecoil-starthandletoblowtheexcessoil

fromthecylinder.

2.Installthesparkplugandtightenitwithatorque

wrenchto20N-m(15ft-lb).

3.Chargethebatteryfor24hours(electric-startmodels

only).

4.Connectthewiretothesparkplug.

Notes:

TheLawn-BoyNo-WorryWarranty

21in.Mulching/RearBagging

A2-YearFullWarranty(45DayLimitedWarrantyforCommercialUse)

WalkPowerMowers

TheLawn-BoyTrueStartCommitment

A3-YearFullWarranty(NotApplicableforCommercialUse)

ConditionsandProductsCovered

Lawn-BoyInc.anditsafliate,Lawn-BoyWarrantyCompany,pursuant

toanagreementbetweenthem,jointlypromisetorepairtheLawn-Boy

Productlistedbelowifusedforresidentialpurposes*;ifitisdefectivein

materialsorworkmanshiporifitstopsfunctioningduetothefailureof

acomponent;oriftheLawn-BoyTrueStartenginewillnotstartonthe

rstorsecondpull,providedtheroutinemaintenancerequiredinthe

Operator'sManualhavebeenperformed.

Thiswarrantycoversthecostofpartsandlabor,butyoumustpay

transportationcosts.

Thefollowingtimeperiodsapplyfromthedateofpurchase:

ProductsWarrantyPeriod

21in.Mulching/RearBagging

MowersandAttachments

2-yearfullwarranty

TrueStartCommitment3-yearfullwarranty

Engine

3-yearfullwarranty

Battery

1-yearfullwarranty

WearItems(Belts,blades,blade

adaptors,grassbags,cables,and

wheels)

90days

LimitedWarrantyforCommercialUse*

Gas-poweredLawn-BoyProductsusedforcommercial,institutional,or

rentaluse,arewarrantedfor45daysagainstdefectsinmaterialsor

workmanship.Componentsfailingduetonormalweararenotcovered

bythiswarranty.

TheTrueStartCommitmentdoesnotapplywhentheproductisused

commercially*.

InstructionsforObtainingWarrantyService

IfyouthinkthatyourLawn-BoyProductcontainsadefectinmaterialsor

workmanship,orifanormal,able-bodiedadultcannolongerstartyour

product'sengineinoneortwopulls,followthisprocedure:

1.ContactanyAuthorizedLawn-BoyServiceDealertoarrangeservice

attheirdealership.T olocateadealerconvenienttoyou,referto

theYellowPagesofyourtelephonedirectory(lookunder“Lawn

Mowers”)oraccessourwebsiteatwww.Lawn-Boy.com.Youmay

alsocallthenumberslistedinitem#3tousethe24-hourLawn-Boy

Dealerlocatorsystem.

2.Bringtheproductandyourproofofpurchase(salesreceipt)tothe

ServiceDealer.Thedealerwilldiagnosetheproblemanddetermine

ifitiscoveredunderwarranty.

3.IfforanyreasonyouaredissatisedwiththeServiceDealer’s

analysisorwiththeassistanceprovided,contactusat:

CustomerCareDepartment

Lawn-BoyInc.

8111LyndaleAvenueSouth

Bloomington,MN55420-1196

Tollfreeat866-216-6032(U.S.customers)

Tollfreeat866-216-6031(Canadiancustomers)

OwnerResponsibilities

YoumustmaintainyourLawn-BoyProductbyfollowingthemaintenance

proceduresdescribedintheOperator'sManual.Suchroutine

maintenance,whetherperformedbyadealerorbyyou,isatyourexpense.

ItemsandConditionsNotCovered

Thereisnootherexpresswarrantyexceptforspecialemissionsystem

coverageandenginewarrantycoverageonsomeproducts.Thisexpress

warrantydoesnotcoverthefollowing:

•Costofregularmaintenanceserviceorparts,suchaslters,fuel,

lubricants,oilchanges,sparkplugs,airltersbladesharpening

orwornblades,cable/linkageadjustments,orbrakeandclutch

adjustments

•Componentsfailingduetonormalwear

•Anyproductorpartwhichhasbeenalteredormisusedorneglected

andrequiresreplacementorrepairduetoaccidentsorlackofproper

maintenance

•Pickupanddeliverycharges

•RepairsorattemptedrepairsbyanyoneotherthananAuthorized

Lawn-BoyServiceDealer

•Repairsnecessaryduetofailuretofollowrecommendedfuel

procedure(consultOperator'sManualformoredetails)

–Removingcontaminantsfromthefuelsystemisnotcovered

–Useofoldfuel(morethanonemonthold)orfuelwhichcontains

morethan10%ethanolormorethat15%MTBE

–Failuretodrainthefuelsystempriortoanyperiodofnon-use

overonemonth

•Repairsoradjustmentstocorrectstartingdifcultiesduetothe

following:

–Failuretofollowpropermaintenanceproceduresor

recommendedfuelprocedure

–Rotarymowerbladestrikinganobject

•Specialoperationalconditionswherestartingmayrequiremorethan

twopulls:

–Firsttimestartsafterextendedperiodofnon-useoverthree

monthsorseasonalstorage

–Cooltemperaturestartssuchasthosefoundinearlyspringand

lateautumn

–Improperstartingprocedures-ifyouarehavingdifcultystarting

yourunit,pleasechecktheOperator'sManualtoensurethat

youareusingthecorrectstartingprocedures.Thiscansavean

unnecessaryvisittoanAuthorizedLawn-BoyServiceDealer.

GeneralConditions

Allrepairscoveredbythesewarrantiesmustbeperformedbyan

AuthorizedLawn-BoyServiceDealerusingLawn-Boy-approved

replacementparts.RepairbyanAuthorizedLawn-BoyServiceDealeris

yoursoleremedyunderthiswarranty.

Lawn-BoyInc.norLawn-BoyWarrantyCompanyisliableforindirect,

incidental,orconsequentialdamagesinconnectionwiththeuseof

theLawn-BoyProductscoveredbythesewarranties,includingany

costorexpenseofprovidingsubstituteequipmentorserviceduring

reasonableperiodsofmalfunctionornon-usependingcompletionof

repairsunderthesewarranties.

Somestatesdonotallowexclusionsofincidentalorconsequential

damages,sotheaboveexclusionsmaynotapplytoyou.

Thiswarrantygivesyouspeciclegalrights,andyoumayalsohaveother

rightswhichvaryfromstatetostate.

CountriesOtherthantheUnitedStatesorCanada

CustomerswhohavepurchasedLawn-BoyproductsexportedfromtheUnitedStatesorCanadashouldcontacttheirLawn-BoyDistributor(Dealer)

toobtainguaranteepoliciesforyourcountry,province,orstate.IfforanyreasonyouaredissatisedwithyourDistributor'sserviceorhavedifculty

obtainingguaranteeinformation,contacttheLawn-Boyimporter.Ifallotherremediesfail,youmaycontactusatLawn-BoyWarrantyCompany.

AustralianConsumerLaw:AustraliancustomerswillnddetailsrelatingtotheAustralianConsumerLaweitherinsidetheboxoratyourlocal

Lawn-BoyDealer.

*Residentialpurposesmeansuseoftheproductonthesamelotasyourhome.Useatmorethanonelocation,orinstitutionalorrentaluse,isconsidered

commercialuseandthecommercialusewarrantywouldapply.

374-0256RevF

Lawn-Boy 10734, 10730, 10732, 17730, 17732, 17734 User manual

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