Toro 21378 User guide

Toro
Brand
Toro
Model
21378
Category
Lawnmowers
Type
User guide

This manual is also suitable for

FormNo.3442-437RevA
22inRecycler
®
LawnMower
ModelNo.21378—SerialNo.407820000andUp
Operator'sManual
Introduction
Thisrotary-blade,walk-behindlawnmowerisintended
tobeusedbyresidentialhomeowners.Itisdesigned
primarilyforcuttinggrassonwell-maintainedlawnson
residentialproperties.Usingthisproductforpurposes
otherthanitsintendedusecouldprovedangerousto
youandbystanders.
Readthisinformationcarefullytolearnhowtooperate
andmaintainyourproductproperlyandtoavoid
injuryandproductdamage.Youareresponsiblefor
operatingtheproductproperlyandsafely.
Visitwww.Toro.comformoreinformation,including
safetytips,trainingmaterials,accessoryinformation,
helpndingadealer,ortoregisteryourproduct.
Wheneveryouneedservice,genuineToroparts,or
additionalinformation,contactanAuthorizedService
DealerorToroCustomerServiceandhavethemodel
andserialnumbersofyourproductready.Figure1
identiesthelocationofthemodelandserialnumbers
ontheproduct.Writethenumbersinthespace
provided.
Important:Withyourmobiledevice,youcan
scantheQRcodeontheserialnumberdecal(if
equipped)toaccesswarranty,parts,andother
productinformation.
g307059
Figure1
1.Modelandserialnumberlocation
ModelNo.
SerialNo.
Thismanualidentiespotentialhazardsandhas
safetymessagesidentiedbythesafety-alertsymbol
(Figure2),whichsignalsahazardthatmaycause
seriousinjuryordeathifyoudonotfollowthe
recommendedprecautions.
g000502
Figure2
Safety-alertsymbol
Thismanualuses2wordstohighlightinformation.
Importantcallsattentiontospecialmechanical
informationandNoteemphasizesgeneralinformation
worthyofspecialattention.
ItisaviolationofCaliforniaPublicResourceCode
Section4442or4443touseoroperatetheengineon
anyforest-covered,brush-covered,orgrass-covered
landunlesstheengineisequippedwithaspark
arrester,asdenedinSection4442,maintainedin
effectiveworkingorderortheengineisconstructed,
equipped,andmaintainedforthepreventionofre.
Theenclosedengineowner'smanualissupplied
forinformationregardingtheUSEnvironmental
ProtectionAgency(EPA)andtheCaliforniaEmission
ControlRegulationofemissionsystems,maintenance,
andwarranty.Replacementsmaybeorderedthrough
theenginemanufacturer.
GrossorNetTorque:Thegrossornettorque
ofthisenginewaslaboratoryratedbytheengine
manufacturerinaccordancewiththeSocietyof
AutomotiveEngineers(SAE)J1940orJ2723.As
conguredtomeetsafety,emission,andoperating
requirements,theactualenginetorqueonthisclass
ofmowerwillbesignicantlylower.Pleasereferto
theenginemanufacturer’sinformationincludedwith
themachine.
WARNING
CALIFORNIA
Proposition65Warning
Theengineexhaustfromthisproduct
containschemicalsknowntotheStateof
Californiatocausecancer,birthdefects,
orotherreproductiveharm.
Useofthisproductmaycauseexposure
tochemicalsknowntotheStateof
Californiatocausecancer,birthdefects,
orotherreproductiveharm.
©2020—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420Registeratwww.T oro.com.
OriginalInstructions(EN)
PrintedinMexico
AllRightsReserved
*3442-437*
Contents
Introduction...............................................................1
Safety.......................................................................2
GeneralSafety...................................................2
SafetyandInstructionalDecals..........................3
Setup........................................................................4
1AssemblingandUnfoldingtheHandle..............4
2InstallingtheRecoil-StarterRopeinthe
RopeGuide.....................................................5
3AddingOiltotheEngine...................................6
4AssemblingtheGrassBag...............................7
ProductOverview.....................................................8
Specications....................................................8
Attachments/Accessories...................................8
Operation..................................................................9
BeforeOperation...................................................9
BeforeOperationSafety.....................................9
CheckingtheEngine-OilLevel..........................10
AdjustingtheHandleHeight.............................10
AdjustingtheCuttingHeight..............................11
DuringOperation..................................................11
DuringOperationSafety....................................11
StartingtheEngine...........................................12
UsingtheSelf-PropelDrive...............................12
ShuttingOfftheEngine.....................................13
RecyclingtheClippings....................................13
BaggingtheClippings.......................................13
Side-DischargingtheClippings.........................14
OperatingTips.................................................14
AfterOperation....................................................15
AfterOperationSafety......................................15
CleaningundertheMachine.............................15
FoldingtheHandle...........................................16
Maintenance...........................................................17
RecommendedMaintenanceSchedule(s)...........17
MaintenanceSafety..........................................17
PreparingforMaintenance...............................17
ServicingtheAirFilter.......................................18
ChangingtheEngineOil...................................18
ReplacingtheBlade..........................................19
AdjustingtheSelf-PropelDrive.........................20
Storage...................................................................21
StorageSafety..................................................21
PreparingtheMachineforStorage...................21
RemovingtheMachinefromStorage................21
Safety
Thismachinehasbeendesignedinaccordancewith
ANSIB71.1-2017.
GeneralSafety
Thisproductiscapableofamputatinghandsand
feetandofthrowingobjects.Alwaysfollowallsafety
instructionstoavoidseriouspersonalinjuryordeath.
•Read,understand,andfollowtheinstructions
andwarningsinthisOperator’sManualandon
themachineandattachmentsbeforestartingthe
engine.
•Donotputyourhandsorfeetnearmovingpartsor
underthemachine.Keepclearofanydischarge
opening.
•Donotoperatethemachinewithoutallguards
andothersafetyprotectivedevicesinplaceand
functioningproperlyonthemachine.
•Keepbystandersandchildrenoutoftheoperating
area.Donotallowchildrentooperatethemachine.
Allowonlypeoplewhoareresponsible,trained,
familiarwiththeinstructions,andphysically
capabletooperatethemachine.
•Stopthemachine,shutofftheengine,andwaitfor
allmovingpartstostopbeforeservicing,fueling,
oruncloggingthemachine.
Improperlyusingormaintainingthismachinecan
resultininjury.Toreducethepotentialforinjury,
complywiththesesafetyinstructionsandalways
payattentiontothesafety-alertsymbol
,which
meansCaution,Warning,orDanger—personalsafety
instruction.Failuretocomplywiththeseinstructions
mayresultinpersonalinjuryordeath.
2
SafetyandInstructionalDecals
Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyarea
ofpotentialdanger.Replaceanydecalthatisdamagedormissing.
decaloemmarkt
Manufacturer'sMark
1.Thismarkindicatesthatthebladeisidentiedasapart
fromtheoriginalmachinemanufacturer.
decal94-8072
94-8072
decal131-4514
131-4514
1.Warning—readtheOperator'sManual.
2.Cutting/dismembermenthazardofhand,mower
blade—stayawayfrommovingparts;keepallguardsand
shieldsinplace.
3.Cutting/dismembermenthazardofhand,mower
blade—disconnectthespark-plugwirebeforeperforming
maintenance.
4.Thrownobjecthazard—keepbystandersaway;shutoffthe
enginebeforeleavingtheoperatingposition;pickupany
debrisbeforemowing.
5.Cutting/dismembermenthazardoffoot,mowerblade—do
notoperateupanddownslopes;operatesidetosideon
slopes;lookbehindyouwhenmovinginreverse.
decal137-9196
137-9196
1.Lock2.Unlock
decal133-8062
133-8062
3
Setup
Important:Removeanddiscardtheprotectiveplasticsheetthatcoverstheengineandanyother
plasticorwrappingonthemachine.
1
AssemblingandUnfoldingtheHandle
NoPartsRequired
Procedure
g230890
Figure3
4
2
InstallingtheRecoil-StarterRopeintheRopeGuide
NoPartsRequired
Procedure
Important:Tostarttheenginesafelyandeasilywheneveryouusethemachine,installtherecoil-starter
ropeintheropeguide.
g230180
Figure4
5
3
AddingOiltotheEngine
NoPartsRequired
Procedure
Important:Iftheoillevelintheengineistoolowortoohighandyouruntheengine,youmaydamage
theengine.
g222533
Figure5
6
4
AssemblingtheGrassBag
NoPartsRequired
Procedure
g235791
Figure6
7
ProductOverview
g330441
Figure7
1.Blade-controlbar
8.Airlter
2.Self-propel-drivebar9.Sparkplug
3.Adjustmentforthe
self-propeldrive
10.Side-dischargedeector
4.Reardeector(notshown)11.Oilll/dipstick
5.Handleknob(2)12.Cutting-heightlever(4)
6.Washoutport(notshown)
13.Handle
7.Fuel-tankcap14.Recoil-starthandle
g009571
Figure8
1.Grassbag2.Side-dischargechute
Specications
ModelWeightLengthWidthHeight
35kg151cm61cm104cm
21378
(78lb)(59inches)(24inches)(41inches)
Attachments/Accessories
AselectionofToroapprovedattachmentsand
accessoriesisavailableforusewiththemachine
toenhanceandexpanditscapabilities.Contact
yourAuthorizedServiceDealerorauthorizedToro
distributororgotowww.Toro.comforalistofall
approvedattachmentsandaccessories.
Toensureoptimumperformanceandcontinuedsafety
certicationofthemachine,useonlygenuineToro
replacementpartsandaccessories.Replacement
partsandaccessoriesmadebyothermanufacturers
couldbedangerous,andsuchusecouldvoidthe
productwarranty.
8
Operation
Note:Determinetheleftandrightsidesofthe
machinefromthenormaloperatingposition.
BeforeOperation
BeforeOperationSafety
GeneralSafety
•Alwaysshutoffthemachine,waitforallmoving
partstostop,andallowthemachinetocoolbefore
adjusting,servicing,cleaning,orstoringit.
•Becomefamiliarwiththesafeoperationofthe
equipment,operatorcontrols,andsafetysigns.
•Checkthatallguardsandsafetydevices,suchas
deectorsand/orgrasscatcher,areinplaceand
functioningproperly.
•Alwaysinspectthemachinetoensurethatthe
bladesandbladeboltsarenotwornordamaged.
•Inspecttheareawhereyouwillusethemachine,
andremoveallobjectsthatcouldinterferewith
theoperationofthemachineorthatthemachine
couldthrow.
•Contactwiththemovingbladewillcauseserious
injury.Donotputyourngersunderthehousing.
FuelSafety
•Fuelisextremelyammableandhighlyexplosive.
Areorexplosionfromfuelcanburnyouand
othersandcandamageproperty.
–Topreventastaticchargefromignitingthefuel,
placethecontainerand/ormachinedirectlyon
thegroundbeforelling,notinavehicleoron
anobject.
–Fillthefueltankoutdoors,inanopenarea,
whentheengineiscold.Wipeupanyfuelthat
spills.
–Donothandlefuelwhensmokingoraroundan
openameorsparks.
–Donotremovethefuelcaporaddfueltothe
tankwhiletheengineisrunningorhot.
–Ifyouspillfuel,donotattempttostartthe
engine.Avoidcreatingasourceofignitionuntil
thefuelvaporshavedissipated.
–Storefuelinanapprovedcontainerandkeep
itoutofthereachofchildren.
•Fuelisharmfulorfatalifswallowed.Long-term
exposuretovaporscancauseseriousinjuryand
illness.
–Avoidprolongedbreathingofvapors.
–Keepyourhandsandfaceawayfromthe
nozzleandthefuel-tankopening.
–Keepfuelawayfromyoureyesandskin.
FillingtheFuelTank
TypeUnleadedgasoline
Minimumoctanerating
87(US)or91(research
octane;outsidetheUS)
Ethanol
Nomorethan10%byvolume
MethanolNone
MTBE(methyltertiarybutyl
ether)
Lessthan15%byvolume
OilDonotaddtothefuel
Useonlyclean,fresh(nomorethan30daysold),fuel
fromareputablesource.
Important:Toreducestartingproblems,addfuel
stabilizer/conditionertofreshfuelasdirectedby
thefuel-stabilizer/conditionermanufacturer.
Refertoyourengineowner’smanualforadditional
information.
FillthefueltankasshowninFigure9.
g230458
Figure9
9
CheckingtheEngine-OilLevel
ServiceInterval:Beforeeachuseordaily
Important:Iftheoillevelinthecrankcaseistoolowortoohighandyouruntheengine,youmay
damagetheengine.
g231765
Figure10
AdjustingtheHandle
Height
Youcanraiseorlowerthehandlein1of2positions
thatismorecomfortableforyou(Figure11).
g188939
Figure11
1.Loosenbothhandleknobsuntilyoucanpush
thesquareedgesofthecarriageboltsoutofthe
squareholesinthehandlebrackets.
2.Pushtheknobsuntiltheyareloose.
3.Movethehandletotheupperorlowerheight
position.
4.Pulltheknobsuntilthesquareedgesofeach
carriagebolttsintoitsrelatedsquarehole.
5.Tightenthehandleknobsastightasyoucan.
10
AdjustingtheCuttingHeight
DANGER
Adjustingthecutting-heightleverscouldbringyourhandsintocontactwithamovingblade
andresultinseriousinjury.
•Shutofftheengineandwaitforallmovingpartstostopbeforeadjustingthecuttingheight.
•Donotputyourngersunderthehousingwhenadjustingthecuttingheight.
CAUTION
Iftheenginehasbeenrunning,themuferwillbehotandcanburnyou.
Keepawayfromthehotmufer.
Adjustthecuttingheightasdesired.Setallwheelstothesamecuttingheight(Figure12).
g254132
Figure12
DuringOperation
DuringOperationSafety
GeneralSafety
•Wearappropriateclothing,includingeye
protection;longpants;substantial,slip-resistant
footwear;andhearingprotection.Tiebacklong
hairanddonotwearlooseclothingorloose
jewelry.
•Useyourfullattentionwhileoperatingthe
machine.Donotengageinanyactivitythat
causesdistractions;otherwise,injuryorproperty
damagemayoccur.
•Donotoperatethemachinewhileill,tired,or
undertheinuenceofalcoholordrugs.
•Thebladeissharp;contactingthebladecanresult
inseriouspersonalinjury.Shutofftheengineand
waitforallmovingpartstostopbeforeleavingthe
operatingposition.
11
•Whenyoureleasetheblade-controlbar,the
engineshouldshutoffandthebladeshouldstop
within3seconds.Ifnot,stopusingyourmachine
immediatelyandcontactanAuthorizedService
Dealer.
•Keepbystandersoutoftheoperatingarea.Keep
smallchildrenoutoftheoperatingareaandunder
thewatchfulcareofaresponsibleadultwhois
notoperatingthemachine.Stopthemachineif
anyoneentersthearea.
•Alwayslookdownandbehindyoubeforemoving
themachineinreverse.
•Operatethemachineonlyingoodvisibilityand
appropriateweatherconditions.Donotoperate
themachinewhenthereistheriskoflightning.
•Wetgrassorleavescancauseseriousinjuryif
youslipandcontacttheblade.Avoidmowingin
wetconditions.
•Useextremecarewhenapproachingblind
corners,shrubs,trees,orotherobjectsthatmay
blockyourview.
•Donotdirectthedischargematerialtoward
anyone.Avoiddischargingmaterialagainstawall
orobstruction;materialmayricochettowardyou.
Stoptheblade(s)whencrossinggravelsurfaces.
•Watchforholes,ruts,bumps,rocks,orother
hiddenobjects.Uneventerraincouldcauseyou
toloseyourbalanceorfooting.
•Ifthemachinestrikesanobjectorstartsto
vibrate,immediatelyshutofftheengine,waitfor
allmovingpartstostop,anddisconnectthewire
fromthesparkplugbeforeexaminingthemachine
fordamage.Makeallnecessaryrepairsbefore
resumingoperation.
•Beforeleavingtheoperatingposition,shutoffthe
engineandwaitforallmovingpartstostop.
•Iftheenginehasbeenrunning,itwillbehotand
canseverelyburnyou.Keepawayfromthehot
engine.
•Operatetheengineonlyinwell-ventilatedareas.
Exhaustgasescontaincarbonmonoxide,whichis
anodorless,deadlypoison.
•Checkthegrasscatchercomponentsandthe
dischargechutefrequentlyforanywearor
deteriorationandreplacethemwithgenuineT oro
partswhennecessary.
SlopeSafety
•Mowacrossthefaceofslopes;neverupand
down.Useextremecautionwhenchanging
directiononslopes.
•Donotmowonexcessivelysteepslopes.Poor
footingcouldcauseaslip-and-fallaccident.
•Mowwithcautionneardrop-offs,ditches,or
embankments.
StartingtheEngine
1.Holdtheblade-controlbaragainstthehandle
(AofFigure13).
2.Pulltherecoil-starthandle(BofFigure13).
Note:Whenyoupulltherecoil-starthandle,
pullitlightlyuntilyoufeelresistance,thenpullit
sharply.Allowtheropetoreturntothehandle
slowly.
Note:Ifthemachinedoesnotstartafterseveral
attempts,contactanAuthorizedServiceDealer.
g233069
Figure13
UsingtheSelf-PropelDrive
ForSelf-Propel-DriveModelsOnly
•Toengagetheself-propeldrive,pullthe
self-propel-drivebartothehandleandholdit
(Figure14).
g240765
Figure14
1.Self-propel-drivebar
Note:Themaximumself-propel-drivespeedis
xed.T oreducethespeed,increasethespace
betweentheself-propel-drivebarandthehandle.
•Todisengagetheself-propel-drive,releasethe
self-propeldrivebar.
12
ShuttingOfftheEngine
ServiceInterval:Beforeeachuseordaily—Ensure
thattheengineshutsoffwithin
3secondsafterreleasingthe
blade-controlbar.
Toshutofftheengine,releasetheblade-controlbar.
Important:Whenyoureleasetheblade-control
bar,boththeengineandbladeshouldstopwithin
3seconds.Iftheydonotstopproperly,stop
usingyourmachineimmediatelyandcontactan
AuthorizedServiceDealer.
RecyclingtheClippings
Yourmachinecomesfromthefactoryreadytorecycle
thegrassandleafclippingsbackintothelawn.
Ifthegrassbagisonthemachine,removeit;
refertoRemovingtheGrassBag(page13).Ifthe
side-dischargechuteisonthemachine,removeit;
refertoRemovingtheSide-DischargeChute(page
14).
BaggingtheClippings
Usethegrassbagwhenyouwanttocollectgrassandleafclippingsfromthelawn.
Iftheside-dischargechuteisonthemachine,removeit;refertoRemovingtheSide-DischargeChute(page14).
InstallingtheGrassBag
1.Raiseandholdupthereardeector(AofFigure15).
2.Installthegrassbag,ensuringthatthepinsonthebagrestinthenotchesonthehandle(BofFigure15).
3.Lowerthereardeector.
g235812
Figure15
RemovingtheGrassBag
1.Raiseandholdupthereardeector.
2.Liftthegrassbagoffofthenotchesonthehandle.
3.Lowerthereardeector.
13
Side-DischargingtheClippings
Usesidedischargingforcuttingtallgrass,thickgrass,orconditionswhererecyclingdoesnotworkwell.
Ifthegrassbagisonthemachine,removeit;refertoRemovingtheGrassBag(page13).
InstallingtheSide-DischargeChute
Liftupthesidedeectorandinstalltheside-dischargechute(AandBFigure16).
g233435
Figure16
RemovingtheSide-DischargeChute
Toremovetheside-dischargechute,liftupthesidedeector,removetheside-dischargechute,andlowerthe
side-dischargedeector.
OperatingTips
GeneralMowingTips
•Inspecttheareawhereyouwillusethemachine
andremoveallobjectsthatthemachinecould
throw.
•Avoidstrikingsolidobjectswiththeblade.Never
deliberatelymowoveranyobject.
•Ifthemachinestrikesanobjectorstartstovibrate,
immediatelyshutofftheengine,waitforallmoving
partstostop,disconnectthewirefromthespark
plug,andexaminethemachinefordamage.
•Forbestperformance,installanewT oroblade
beforethecuttingseasonbeginsorwhen
necessary.
CuttingGrass
•Cutonlyaboutathirdofthegrassbladeatatime.
Donotcutbelow51mm(2inches)unlessthe
grassissparseoritislatefallwhengrassgrowth
beginstoslowdown.
•Whencuttinggrassover15cm(6inches)tall,
mowatthehighestcuttingheightsettingandwalk
slower;thenmowagainatalowersettingforthe
bestlawnappearance.Ifthegrassistoolong,the
machinemayplugandcausetheenginetostall.
•Wetgrassandleavestendtoclumpontheyard
andcancausethemachinetoplugortheengine
tostall.Avoidmowinginwetconditions.
•Beawareofapotentialrehazardinverydry
conditions,followalllocalrewarnings,andkeep
themachinefreeofdrygrassandleafdebris.
•Alternatethemowingdirection.Thishelps
dispersetheclippingsoverthelawnforeven
fertilization.
•Ifthenishedlawnappearanceisunsatisfactory,
try1ormoreofthefollowing:
–Replacethebladeorhaveitsharpened.
–Walkataslowerpacewhilemowing.
–Raisethecuttingheightonyourmachine.
–Cutthegrassmorefrequently.
–Overlapcuttingswathsinsteadofcuttingafull
swathwitheachpass.
CuttingLeaves
•Aftercuttingthelawn,ensurethathalfofthelawn
showsthroughthecutleafcover.Youmayneed
tomakemorethanasinglepassovertheleaves.
•Iftherearemorethan13cm(5inches)ofleaves
onthelawn,mowatahighercuttingheightand
thenagainatthedesiredcuttingheight.
•Slowdownyourmowingspeedifthemachine
doesnotcuttheleavesnelyenough.
14
AfterOperation
AfterOperationSafety
GeneralSafety
•Alwaysshutoffthemachine,waitforallmoving
partstostop,andallowthemachinetocoolbefore
adjusting,servicing,cleaning,orstoringit.
•Cleangrassanddebrisfromthemachinetohelp
preventres.Cleanupoilorfuelspills.
•Neverstorethemachineorfuelcontainerwhere
thereisanopename,spark,orpilotlight,such
asonawaterheateroronotherappliances.
HaulingSafety
•Usecarewhenloadingorunloadingthemachine.
•Securethemachinefromrolling.
CleaningundertheMachine
ServiceInterval:Aftereachuse
Forbestresults,cleanthemachinesoonafteryou
havecompletedmowing.
1.Movethemachineontoaatpavedsurface.
2.Shutofftheengineandwaitforallmovingparts
tostopbeforeleavingtheoperatingposition.
3.Lowerthemachinetoitslowestcutting-height
setting.RefertoAdjustingtheCuttingHeight
(page11).
4.Washouttheareaunderthereardoorwherethe
clippingsgofromtheundersideofthemachine
tothegrassbag.
Note:Washouttheareawiththe
bag-on-demand(ifequipped)inboththefully
forwardandfullyrearwardpositions.
5.Attachagardenhosethatisconnectedtoa
watersupplytothewashoutport(Figure17).
g188752
Figure17
1.Washoutport
6.Turnthewateron.
7.Starttheengineandrunituntiltheclippingsno
longercomeoutfromunderthemachine.
8.Shutofftheengine.
9.Shutoffthewateranddisconnectthegarden
hosefromthemachine.
10.Starttheengineandrunitforafewminutesto
drytheundersideofthemachinetopreventit
fromrusting.
11.Shutofftheengineandallowittocoolbefore
storingthemachineinanenclosedarea.
15
FoldingtheHandle
WARNING
Foldingorunfoldingthehandleimproperly
candamagethecables,causinganunsafe
operatingcondition.
•Donotdamagethecableswhenfoldingor
unfoldingthehandle.
•Ifacableisdamaged,contactan
AuthorizedServiceDealer.
1.Removeandsavethe2handleknobsand2
carriageboltsfromthehandlebrackets(Figure
18).
Important:Routethecablestotheoutside
ofthehandleasyoufoldthehandle.
g189871
Figure18
1.Handleknob
2.Carriagebolt
2.Foldthehandlebyrotatingitforward(Figure19).
g189874
Figure19
1.Operatingposition
2.Foldedposition
3.Looselyinstallthehandleknobsandcarriage
boltsonthehandlebrackets(Figure20).
g189864
Figure20
1.Handleknob
2.Carriagebolt
4.Tounfoldthehandle,referto1Assemblingand
UnfoldingtheHandle(page4).
16
Maintenance
RecommendedMaintenanceSchedule(s)
MaintenanceService
Interval
MaintenanceProcedure
Beforeeachuseordaily
•Checktheengine-oillevelandaddoilasneeded.
•Ensurethattheengineshutsoffwithin3secondsafterreleasingtheblade-control
bar.
Aftereachuse
•Cleangrassclippingsanddirtfromunderthemachine.
Every100hours
•Replacethesparkplug.
Yearly
•Servicetheairlter;serviceitmorefrequentlyindustyoperatingconditions.
•Changetheengineoil(ifdesired).
•Replacethebladeorhaveitsharpened(morefrequentlyiftheedgedullsquickly).
•Cleantheenginebyremovingdirtanddebrisfromitstopandsides;cleanitmore
frequentlyindustyoperatingconditions.
Yearlyorbeforestorage
•Emptythefueltankbeforerepairsasdirectedandbeforeyearlystorage.
Important:Refertoyourenginemanualforadditionalmaintenanceprocedures.
MaintenanceSafety
•Alwaysshutoffthemachine,waitforallmoving
partstostop,andallowthemachinetocoolbefore
adjusting,servicing,cleaning,orstoringit.
•Disconnectthespark-plugwirefromthesparkplug
beforeperforminganymaintenanceprocedure.
•Wearglovesandeyeprotectionwhenservicing
themachine.
•Thebladeissharp;contactingthebladecanresult
inseriouspersonalinjury.Weargloveswhen
servicingtheblade.Donotrepairoralterthe
blade(s).
•Nevertamperwithsafetydevices.Checktheir
properoperationregularly.
•Tippingthemachinemaycausethefueltoleak.
Fuelisammableandexplosive,andcancause
personalinjury.Runtheenginedryorremovethe
fuelwithahandpump;neversiphonthefuel.
•Toensureoptimumperformanceofthemachine,
useonlygenuineT ororeplacementpartsand
accessories.Replacementpartsandaccessories
madebyothermanufacturerscouldbedangerous,
andsuchusecouldvoidtheproductwarranty.
PreparingforMaintenance
1.Shutofftheengineandwaitforallmovingparts
tostop.
2.Disconnectthespark-plugwirefromthespark
plug(Figure21).
g014650
Figure21
3.Afterperformingthemaintenanceprocedure(s),
connectthespark-plugwiretothesparkplug.
Important:Beforetippingthemachineto
changetheoilorreplacetheblade,allowthe
fueltanktorundrythroughnormalusage.If
youmusttipthemachinepriortorunning
outoffuel,useahandfuelpumptoremove
thefuel.Alwaystipthemachineontoits
side,withthedipstickdown.
17
ServicingtheAirFilter
ServiceInterval:Yearly—Servicetheairlter;service
itmorefrequentlyindustyoperating
conditions.
1.Unclipthetopoftheair-ltercover(Figure22).
g189231
Figure22
1.Clip
2.Air-ltercover
3.Airlter
2.Removetheairlter(Figure22).
3.Inspecttheairlter.
Note:Iftheairlterisexcessivelydirty,replace
itwithanewlter.Otherwise,gentlytaptheair
lteronahardsurfacetoloosendebris.
4.Installtheairlter.
5.Usethecliptoinstalltheair-ltercover.
ChangingtheEngineOil
ServiceInterval:Yearly—Changetheengineoil(if
desired).
Changingtheengineoilisnotrequired,butif
youwanttochangetheoil,usethefollowing
procedure.
Note:Runtheengineafewminutesbeforechanging
theoiltowarmit.Warmoilowsbetterandcarries
morecontaminants.
EngineOilSpecications
Engineoilcapacity
0.44L(15oz)*
OilviscositySAE30orSAE10W-30
detergentoil
APIserviceclassicationSJorhigher
*Thereisresidualoilinthecrankcaseafteryoudrain
theoil.Donotpourtheentirecapacityofoilintothe
crankcase.Fillthecrankcasewithoilasdirectedin
thefollowingsteps.
1.Movethemachinetoalevelsurface.
2.RefertoPreparingforMaintenance(page17).
3.Removethedipstickbyrotatingthecap
counterclockwiseandpullingitout(Figure23).
g187518
Figure23
1.Dipstick3.Full
2.Add
4.Tipthemachineontoitsside(sothattheair
lterisup)todraintheusedoilfromtheoil-ll
tube(Figure24).
18
g188765
Figure24
5.Afterdrainingtheusedoil,returnthemachineto
theoperatingposition.
6.Carefullypourabout3/4oftheenginecapacity
ofoilintotheoil-lltube.
7.Wait3minutesfortheoiltosettleintheengine.
8.Wipethedipstickcleanwithacleancloth.
9.Insertthedipstickintotheoil-lltube,then
removethedipstick.
10.Readtheoillevelonthedipstick(Figure23).
•Iftheoillevelonthedipstickistoolow,
carefullypourasmallamountofoilintothe
oil-lltube,wait3minutes,andrepeatsteps
8through10untiltheoillevelonthedipstick
iscorrect.
•Iftheoillevelonthedipstickistoohigh,
draintheexcessoiluntiltheoillevelonthe
dipstickiscorrect.
Important:Iftheoillevelintheengineistoo
lowortoohighandyouruntheengine,you
maydamagetheengine.
11.Installthedipstickintotheoil-lltubesecurely.
12.Recycletheusedoilproperly.
ReplacingtheBlade
ServiceInterval:Yearly
Important:Youwillneedatorquewrenchto
installthebladeproperly.Ifyoudonothavea
torquewrenchorareuncomfortableperforming
thisprocedure,contactanAuthorizedService
Dealer.
Examinethebladewheneveryourunoutoffuel.Ifthe
bladeisdamagedorcracked,replaceitimmediately.
Ifthebladeedgeisdullornicked,haveitsharpened
andbalanced,orreplaceit.
WARNING
Thebladeissharp;contactingthebladecan
resultinseriouspersonalinjury.
Weargloveswhenservicingtheblade.
1.RefertoPreparingforMaintenance(page17).
2.Tipthemachineontoitssidewiththeairlterup.
3.Useablockofwoodtoholdthebladesteady
(Figure25).
g231389
Figure25
4.Removetheblade,savingallmountinghardware
(Figure25).
5.Installthenewbladeandallmountinghardware
(Figure26).
19
g231390
Figure26
Important:Positionthecurvedendsofthe
bladetopointtowardthemachinehousing.
6.Useatorquewrenchtotightenthebladebolt
to82N∙m(60ft-lb).
AdjustingtheSelf-Propel
Drive
ForSelf-Propel-DriveModelsOnly
Wheneveryouinstallanewself-propelcableorif
theself-propeldriveisoutofadjustment,adjustthe
self-propeldrive.
1.Turntheadjustmentnutcounterclockwiseto
loosenthecableadjustments(Figure27).
g273506
Figure27
1.Handle(leftside)
4.Turnthenutclockwiseto
tightentheadjustment.
2.Adjustmentnut5.Turnthenut
counterclockwiseto
loosentheadjustment.
3.Self-propel-drivecables
2.Adjustthetensiononthecables(Figure27)by
pullingthembackorpushingthemforwardand
holdingthatposition.
Note:Pushthecablestowardtheengineto
increasethetraction;pullthecablesawayfrom
theenginetodecreasethetraction.
3.Turntheadjustmentnutclockwisetotightenthe
cableadjustments.
Note:Tightenthenutrmlywithasocketor
wrench.
20
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Toro 21378 User guide

Toro
Brand
Toro
Model
21378
Category
Lawnmowers
Type
User guide
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