Toro 21751 Operator's Manual

53cmMulching/RearBagging/SideDischarging
LawnMower

ModelNo.21750—SerialNo.400000000andUp

ModelNo.21751—SerialNo.400000000andUp

FormNo.3436-125RevA

Operator'sManual

Introduction

Thisrotary-blade,walk-behindlawnmowerisintended
tobeusedbyresidentialhomeowners.Itisdesigned
primarilyforcuttinggrassonwell-maintainedlawnson
residentialproperties.Usingthisproductforpurposes
otherthanitsintendedusecouldprovedangerousto
youandbystanders.

Readthisinformationcarefullytolearnhowtooperate
andmaintainyourproductproperlyandtoavoid
injuryandproductdamage.Youareresponsiblefor
operatingtheproductproperlyandsafely.

Visitwww.T oro.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

seriousinjuryordeathifyoudonotfollowthe
recommendedprecautions.

g000502

Figure2

Safety-alertsymbol

Thismanualuses2wordstohighlightinformation.
Importantcallsattentiontospecialmechanical
informationandNoteemphasizesgeneralinformation
worthyofspecialattention.

ThisproductcomplieswithallrelevantEuropean
directives;fordetails,pleaseseetheseparateproduct
specicDeclarationofConformity(DOC)sheet.

GrossorNetTorque:Thegrossornettorque
ofthisenginewaslaboratoryratedbytheengine
manufacturerinaccordancewiththeSocietyof
AutomotiveEngineers(SAE)J1940orJ2723.As
conguredtomeetsafety,emission,andoperating
requirements,theactualenginetorqueonthisclass
ofmowerwillbesignicantlylower.Pleasereferto
theenginemanufacturer’sinformationincludedwith
themachine.

Figure1

1.Modelandserialnumberlocation

ModelNo.

SerialNo.

Thismanualidentiespotentialhazardsandhas
safetymessagesidentiedbythesafety-alertsymbol
(Figure2),whichsignalsahazardthatmaycause

©2019—TheT oro®Company
8111L yndaleAvenueSouth
Bloomington,MN55420

Registeratwww.Toro.com.

Donottamperwithordisablesafetydevicesonthe
machine,andchecktheirproperoperationregularly.
Donotattempttoadjustortamperwiththeengine
speedcontrol;doingsomaycreateanunsafe
operatingcondition,resultinginpersonalinjury.

g305877

OriginalInstructions(EN)

PrintedinMexico

AllRightsReserved

*3436-125*A

Contents

Safety

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

Safety.......................................................................2

GeneralSafety...................................................2

SafetyandInstructionalDecals..........................3

Setup........................................................................4

1InstallingtheHandle........................................4

2InstallingtheRecoil-StarterRopeinthe

RopeGuide.....................................................4

3AddingOiltotheEngine...................................5

4AssemblingtheGrassBag...............................5

5ChargingtheBattery........................................6

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

Specications....................................................7

Attachments/Accessories...................................7

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

BeforeOperation...................................................8

BeforeOperationSafety.....................................8

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

CheckingtheEngine-OilLevel............................9

AdjustingtheCuttingHeight.............................10

DuringOperation..................................................11

DuringOperationSafety....................................11

StartingtheEngine...........................................12

UsingtheSelf-PropelDrive...............................12

ShuttingOfftheEngine.....................................12

MulchingtheClippings......................................12

BaggingtheClippings.......................................13

Side-DischargingtheClippings.........................14

OperatingTips.................................................14

AfterOperation....................................................15

AfterOperationSafety......................................15

CleaningundertheMachine.............................15

FoldingtheHandle...........................................15

Maintenance...........................................................16

RecommendedMaintenanceSchedule(s)...........16

MaintenanceSafety..........................................16

PreparingforMaintenance...............................16

ServicingtheAirFilter.......................................17

ChangingtheEngineOil...................................17

ChargingtheBattery.........................................18

ReplacingtheFuse...........................................19

ReplacingtheBlade..........................................19

AdjustingtheSelf-PropelDrive.........................20

Storage...................................................................21

StorageSafety..................................................21

PreparingtheMachineforStorage...................21

RemovingtheMachinefromStorage................21

Thismachinehasbeendesignedinaccordancewith
ENISO5395.

GeneralSafety

Thisproductiscapableofamputatinghandsand
feetandofthrowingobjects.Alwaysfollowallsafety
instructionstoavoidseriouspersonalinjury .

•Read,understand,andfollowtheinstructions

andwarningsinthisOperator’sManualandon
themachineandattachmentsbeforestartingthe
engine.

•Donotputyourhandsorfeetnearmovingpartsor

underthemachine.Keepclearofanydischarge
opening.

•Donotoperatethemachinewithoutallguards

andothersafetyprotectivedevicesinplaceand
functioningproperlyonthemachine.

•Keepbystandersandchildrenoutoftheoperating

area.Donotallowchildrentooperatethemachine.
Allowonlypeoplewhoareresponsible,trained,
familiarwiththeinstructions,andphysically
capabletooperatethemachine.

•Stopthemachine,shutofftheengine,remove

theignitionkey(ifequipped),andwaitforall
movingpartstostopbeforeservicing,fueling,or
uncloggingthemachine.

Improperlyusingormaintainingthismachinecan
resultininjury.Toreducethepotentialforinjury,
complywiththesesafetyinstructionsandalways
payattentiontothesafety-alertsymbol,which
meansCaution,Warning,orDanger—personalsafety
instruction.Failuretocomplywiththeseinstructions
mayresultinpersonalinjuryordeath.

2

SafetyandInstructionalDecals

Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyarea
ofpotentialdanger.Replaceanydecalthatisdamagedormissing.

Manufacturer'sMark

1.Thismarkindicatesthatthebladeisidentiedasapart
fromtheoriginalmachinemanufacturer .

112-8760

1.Thrownobjecthazard—keepbystandersaway.

2.Cutting/dismembermenthazardofhandorfoot,mower
blade—stayawayfrommovingparts.

decaloemmarkt

decal117-4143

117-4143

1.Warning—readtheOperator'sManual.

2.Thrownobjecthazard—keepbystandersaway.

3.Cutting/dismembermenthazardofhandorfoot,mower

decal112-8760

blade—disconnectthespark-plugwireandreadthe
Operator'sManualbeforeperformingmaintenance.

4.Cutting/dismembermenthazardofhandorfoot,mower
blade—stayawayfrommovingparts;keepallguardsand
shieldsinplace.

5.Cutting/dismembermenthazardofhandorfoot,mower
blade—donotoperateupanddownslopes;onlyoperate
acrossslopes;shutofftheengineandwaitforallmoving
partstostopbeforeleavingthemachine;pickupdebris
beforemowing;lookbehindanddownwhenmovingin
reverse.

Electric-startmodelonly

1.Warning—readthe
Operator’sManualfor
batteryinformation;donot
discardtheleadbattery .

3

decal140-4357

140-4357

2.Attention—readthe

Operator’sManual

forbatterycharging
information.

Setup

Important:Removeanddiscardtheprotectiveplasticsheetthatcoverstheengineandanyother

plasticorwrappingonthemachine.

Important:Topreventaccidentalstarting,donotinsertthekeyintotheelectric-startignition(if

equipped)untilyouarereadytostarttheengine.

1

InstallingtheHandle

NoPartsRequired

Procedure

WARNING

Foldingorunfoldingthehandleimproperlycandamagethecables,causinganunsafe
operatingcondition.

•Donotdamagethecableswhenfoldingorunfoldingthehandle.

•Ifacableisdamaged,contactanAuthorizedServiceDealer.

1.Removethehandleknobsandcorrespondingboltsfromthelowerhandles(AofFigure3).

2.Positiontheupperhandleonthelowerhandlesandthenunfoldthehandle(BofFigure3).

3.Ensurethatthecablesareroutedtotheoutsideofthehandle(CofFigure3).

4.Installthehandleknobswiththecorrespondingboltsandtightenthemrmlybyhand(DofFigure3).

Figure3

2

InstallingtheRecoil-StarterRopeintheRopeGuide

g305902

NoPartsRequired

Procedure

Important:T ostarttheenginesafelyandeasilywheneveryouusethemachine,installtherecoil-starter

ropeintheropeguide.

4

Figure4

3

AddingOiltotheEngine

NoPartsRequired

Procedure

Important:Iftheoillevelintheengineistoolowortoohighandyouruntheengine,youmaydamage

theengine.

g228152

Figure5

5

g222533

4

AssemblingtheGrassBag

NoPartsRequired

Procedure

g240711

Figure6

5

ChargingtheBattery

NoPartsRequired

Procedure

Electric-StartModelOnly

RefertoChargingtheBattery(page18).

6

ProductOverview

g197496

Figure8

Figure7

Electric-startmodelshown

1.Blade-controlbar

2.Ignitionkey(electric-start
modelonly)

3.Battery(electric-start
modelonly)

4.Fuel-tankcap

5.Airlter

6.Sparkplug13.Self-propeldrivebar

7.Frontcutting-heightlever

8.Oilll/dipstick

9.Reardeector

10.Rearcutting-heightlever

11.Handleknob(2)

12.Recoil-starthandle

1.Grassbag

2.Side-dischargechute(sold
separately)

3.Batterycharger
(electric-startmodelonly)

Specications

g197495

ModelWeightLengthWidthHeight

21750

21751

30kg

(67lb)145cm56cm97cm

34kg

(76lb)

(57inches)(22inches)(38inches)

Attachments/Accessories

AselectionofToroapprovedattachmentsand
accessoriesisavailableforusewiththemachine
toenhanceandexpanditscapabilities.Contact
yourAuthorizedServiceDealerorauthorizedT oro
distributororgotowww.T oro.comforalistofall
approvedattachmentsandaccessories.

Toensureoptimumperformanceandcontinuedsafety
certicationofthemachine,useonlygenuineToro
replacementpartsandaccessories.Replacement
partsandaccessoriesmadebyothermanufacturers
couldbedangerous,andsuchusecouldvoidthe
productwarranty.

7

Operation

Note:Determinetheleftandrightsidesofthe

machinefromthenormaloperatingposition.

–Avoidprolongedbreathingofvapors.

–Keepyourhandsandfaceawayfromthe

nozzleandthefuel-tankopening.

–Keepfuelawayfromyoureyesandskin.

BeforeOperation

BeforeOperationSafety

GeneralSafety

•Alwaysshutoffthemachine,removetheignition

key(ifequipped),waitforallmovingpartstostop,
andallowthemachinetocoolbeforeadjusting,
servicing,cleaning,orstoringit.

•Becomefamiliarwiththesafeoperationofthe

equipment,operatorcontrols,andsafetysigns.

•Checkthatallguardsandsafetydevices,suchas

deectorsand/orgrasscatcher,areinplaceand
functioningproperly.

•Alwaysinspectthemachinetoensurethatthe

bladesandbladeboltsarenotwornordamaged.

•Inspecttheareawhereyouwillusethemachine,

andremoveallobjectsthatcouldinterferewith
theoperationofthemachineorthatthemachine
couldthrow.

•Contactwiththemovingbladewillcauseserious

injury.Donotputyourngersunderthehousing
whenadjustingthecuttingheight.

FillingtheFuelTank

•Forbestresults,useonlyclean,fresh,unleaded

gasolinewithanoctaneratingof87orhigher
((R+M)/2ratingmethod).

•Oxygenatedfuelwithupto10%ethanolor15%

MTBEbyvolumeisacceptable.

•Donotuseethanolblendsofgasoline,such

asE15orE85,withmorethan10%ethanolby
volume.Performanceproblemsand/orengine
damagemayresult,whichmaynotbecovered
underwarranty.

•Donotusegasolinecontainingmethanol.

•Donotstorefueleitherinthefueltankorinfuel

containersoverthewinterunlessfuelstabilizer
hasbeenaddedtothefuel.

•Donotaddoiltogasoline.

Fillthefueltankwithfreshunleadedregulargasoline
fromamajorname-brandservicestation(Figure9).

Important:Toreducestartingproblems,addfuel

stabilizer/conditionertofreshfuelasdirectedby
thefuel-stabilizermanufacturer.

FuelSafety

•Fuelisextremelyammableandhighlyexplosive.

Areorexplosionfromfuelcanburnyouand
othersandcandamageproperty.

–T opreventastaticchargefromignitingthefuel,

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.

Refertoyourengineowner’smanualforadditional
information.

g230458

Figure9

8