
FormNo.3447-448RevA
Flex-ForcePowerSystem
MAX21inRecycler
withSmartStow
ModelNo.21357—SerialNo.400000000andUp
®
®
™
60V
LawnMower
Registeratwww.T oro.com.
OriginalInstructions(EN)
*3447-448*

Forassistance,pleasesee
www.Toro.com/support
forinstructionalvideos
orcontact1-888-384-9939
beforereturningthis
product.
WARNING
CALIFORNIA
Proposition65Warning
Thepowercordonthisproductcontains
lead,achemicalknowntotheState
ofCaliforniatocausebirthdefects
orotherreproductiveharm.Wash
handsafterhandling.
Useofthisproductmaycauseexposure
tochemicalsknowntotheStateof
Californiatocausecancer,birthdefects,
orotherreproductiveharm.
Wheneveryouneedservice,genuineToroparts,or
additionalinformation,contactanAuthorizedService
DealerorToroCustomerServiceandhavethemodel
andserialnumbersofyourproductready.Figure1
identiesthelocationofthemodelandserialnumbers
ontheproduct.Writethenumbersinthespace
provided.
Important:Withyourmobiledevice,youcan
scantheQRcodeontheserialnumberdecal(if
equipped)toaccesswarranty,parts,andother
productinformation.
g275230
Figure1
1.Modelandserialnumberlocation
ModelNo.
Introduction
Thisrotary-blade,walk-behindlawnmowerisintended
tobeusedbyresidentialhomeowners.Itisdesigned
primarilyforcuttinggrassonwell-maintainedlawns
onresidentialproperties.Itisnotdesignedforcutting
brushorforagriculturaluses.
ItisdesignedtouseToroFlex-Forcelithium-ion
batterypackModel88650(providedwithModel
21357);itcanalsousebatterypackModels88620,
88625,88640,88660,or88675.Thesebatterypacks
aredesignedtobechargedonlybybatterycharger
Models88602(providedwithModel21357),88605,
or88610.Usingtheseproductsforpurposesother
thantheirintendedusecouldprovedangeroustoyou
andbystanders.
Readthisinformationcarefullytolearnhowtooperate
andmaintainyourproductproperlyandtoavoid
injuryandproductdamage.Youareresponsiblefor
operatingtheproductproperlyandsafely .
SerialNo.
Thismanualidentiespotentialhazardsandhas
safetymessagesidentiedbythesafety-alertsymbol
(Figure2),whichsignalsahazardthatmaycause
seriousinjuryordeathifyoudonotfollowthe
recommendedprecautions.
g000502
Figure2
Safety-alertsymbol
Thismanualuses2wordstohighlightinformation.
Importantcallsattentiontospecialmechanical
informationandNoteemphasizesgeneralinformation
worthyofspecialattention.
Visitwww.Toro.comformoreinformation,including
safetytips,trainingmaterials,accessoryinformation,
helpndingadealer,ortoregisteryourproduct.
©2021—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420
Contactusatwww.Toro.com.
2
PrintedinChina
AllRightsReserved

Contents
Safety
Safety.......................................................................3
SafetyandInstructionalDecals..........................6
Setup........................................................................9
1MountingtheBatteryCharger
(Optional)........................................................9
2AssemblingtheGrassBag...............................9
3UnfoldingtheHandle.....................................10
ProductOverview....................................................11
Specications...................................................11
Attachments/Accessories..................................11
BeforeOperation.................................................12
InstallingtheBatteryPack................................12
AdjustingtheCuttingHeight.............................13
DuringOperation.................................................14
StartingtheMachine.........................................14
UsingtheSelf-PropelDrive...............................14
RecyclingtheClippings....................................15
BaggingtheClippings.......................................15
ShuttingOfftheMachine..................................16
RemovingtheBatteryPackfromthe
Machine........................................................16
OperatingTips.................................................16
AfterOperation....................................................17
ChargingtheBatteryPack................................17
CleaningundertheMachine.............................17
FoldingtheHandle...........................................18
StoringtheMachineintheVertical-Stow
Position.........................................................18
Maintenance...........................................................19
LubricatingtheMachine....................................19
ReplacingtheBlade..........................................19
AdjustingtheSelf-PropelDrive.........................20
PreparingtheBatteryPackfor
Recycling......................................................20
Storage...................................................................21
Troubleshooting......................................................22
IMPORTANTSAFETY
INSTRUCTIONS
WARNING—Whenusinganelectricmachine,always
readandfollowbasicsafetywarningsandinstructions
toreducetheriskofre,electricshock,orinjury,
includingthefollowing:
I.Training
1.Theoperatorofthemachineisresponsiblefor
anyaccidentsorhazardsoccurringtoothersor
theirproperty.
2.Donotallowchildrentouseorplaywiththe
machine,batterypack,orthebatterycharger;
localregulationsmayrestricttheageofthe
operator.
3.Donotallowchildrenoruntrainedpeopleto
operateorservicethisdevice.Allowonlypeople
whoareresponsible,trained,familiarwiththe
instructions,andphysicallycapabletooperate
orservicethedevice.
4.Beforeusingthemachine,batterypack,and
batterycharger,readalltheinstructionsand
cautionarymarkingsontheseproducts.
5.Becomefamiliarwiththecontrolsandproper
useofthemachine,batterypack,andbattery
charger.
II.Preparation
1.Keepbystanders,especiallychildrenandpets,
outoftheoperatingarea.
2.Donotoperatethemachinewithoutallguards
andsafetydevices,suchasdeectorsandgrass
catchers,inplaceandfunctioningproperlyon
themachine.
3.Inspecttheareawhereyouwillusethemachine
andremoveallobjectsthatcouldinterferewith
theoperationofthemachineorthatthemachine
couldthrow.
4.Beforeusingthemachine,ensurethattheblade,
bladebolt,andbladeassemblyarenotwornor
damaged.Replaceanydamagedorunreadable
labels.
5.UseonlythebatterypackspeciedbyToro.
Usingotheraccessoriesandattachmentsmay
increasetheriskofinjuryandre.
6.Pluggingthebatterychargerintoanoutletthatis
not120Vcancauseareorelectricshock.Do
notplugthebatterychargerintoanoutletother
than120V .Foradifferentstyleofconnection,
useanattachmentplugadapteroftheproper
congurationforthepoweroutletifneeded.
3

7.Donotuseadamagedormodiedbattery
packorbatterycharger,whichmayexhibit
unpredictablebehaviorthatresultsinre,
explosion,orriskofinjury .
8.Ifthesupplycordtothebatterychargeris
damaged,contactanAuthorizedServiceDealer
toreplaceit.
9.Donotusenon-rechargeablebatteries.
10.Chargethebatterypackwithonlythebattery
chargerspeciedbyT oro.Achargersuitablefor
1typeofbatterypackmaycreateariskofre
whenusedwithanotherbatterypack.
11.Chargethebatterypackinawell-ventilatedarea
only.
12.Donotexposeabatterypackorbatterycharger
toreortotemperatureshigherthan68°C
(154°F).
13.Followallcharginginstructionsanddo
notchargethebatterypackoutsideofthe
temperaturerangespeciedintheinstructions.
Otherwise,youmaydamagethebatterypack
andincreasetheriskofre.
14.Dressproperly—Wearappropriateclothing,
includingeyeprotection;longpants;substantial,
slip-resistantfootwear(notbarefootorwearing
sandals);andhearingprotection.Tiebacklong
hairanddonotwearlooseclothingorloose
jewelrythatcangetcaughtinmovingparts.
Wearadustmaskindustyoperatingconditions.
Useofrubberglovesisrecommended.
III.Operation
1.Contactwiththemovingbladewillcauseserious
injury.Keepyourhandsandfeetawayfromthe
cuttingareaandallmovingpartsofthemachine.
Keepclearofanydischargeopening.
2.Usingthismachineforpurposesotherthanits
intendedusecouldprovedangeroustoyouand
bystanders.
3.Disengagetheself-propeldrive(ifequipped)
beforestartingthemachine.
4.Donottiltthemachinewhenstartingthemotor.
5.Preventunintentionalstarting—Ensurethatthe
electric-startbuttonisremovedfromtheignition
beforeconnectingthebatterypackandhandling
themachine.
6.Useyourfullattentionwhileoperatingthe
machine.Donotengageinanyactivitythat
causesdistractions;otherwise,injuryorproperty
damagemayoccur.
7.Whenyoureleasetheblade-controlbar,the
motorshouldshutoffandthebladeshould
stopwithin3seconds.Ifnot,stopusingyour
machineimmediatelyandcontactanAuthorized
ServiceDealer.
8.Stopthemachine,removetheelectric-start
button,removethebatterypackfromthe
machine,andwaitforallmovementtostop
beforeadjusting,servicing,cleaning,orstoring
themachine.
9.Removethebatterypackandelectric-start
buttonfromthemachinewheneveryouleaveit
unattendedorbeforechangingaccessories.
10.Donotforcethemachine—Allowthemachineto
dothejobbetterandsaferattherateforwhichit
wasdesigned.
11.Stayalert—Watchwhatyouaredoinganduse
commonsensewhenoperatingthemachine.
Donotusethemachinewhileill,tired,orunder
theinuenceofalcoholordrugs.
12.Operatethemachineonlyingoodvisibilityand
appropriateweatherconditions.Donotoperate
themachinewhenthereistheriskoflightning.
13.Useextremecautionwhenreversingorpulling
themachinetowardyou.
14.Keepproperfootingandbalanceatalltimes,
especiallyonslopes.Mowacrosstheface
ofslopes,neverupanddown.Useextreme
cautionwhenchangingdirectionsonslopes.Do
notmowexceedinglysteepslopes.Walk,never
runwiththemachine.
15.Donotdirectthedischargematerialtoward
anyone.Avoiddischargingmaterialagainsta
wallorobstruction;materialmayricochettoward
you.Stoptheblade(s)whencrossingsurfaces
otherthangrass.
16.Watchforholes,ruts,bumps,rocks,orother
hiddenobjects.Uneventerraincouldcauseyou
toloseyourbalanceorfooting.
17.Wetgrassorleavescancauseseriousinjuryif
youslipandcontacttheblade.Avoidmowingin
wetconditionsorwhenitisraining.
18.Ifthemachinestrikesanobjectorstartsto
vibrate,immediatelyshutoffthemachine,
removetheelectric-startbutton,removethe
batterypack,andwaitforallmovementtostop
beforeexaminingthemachinefordamage.
Makeallnecessaryrepairsbeforeresuming
operation.
19.Stopthemachineandremovetheelectric-start
buttonbeforeloadingthemachineforhauling.
20.Underabusiveconditions,thebatterypackmay
ejectliquid;avoidcontact.Ifyouaccidently
comeintocontactwiththeliquid,ushwith
water.Iftheliquidcontactsyoureyes,seek
4

medicalhelp.Liquidejectedfromthebattery
packmaycauseirritationorburns.
IV.MaintenanceandStorage
1.Stopthemachine,removetheelectric-start
button,removethebatterypackfromthe
machine,andwaitforallmovementtostop
beforeadjusting,servicing,cleaning,orstoring
themachine.
2.Donotattempttorepairthemachineexceptas
indicatedintheinstructions.HaveanAuthorized
ServiceDealerperformserviceonthemachine
usingidenticalreplacementparts.
3.Wearglovesandeyeprotectionwhenservicing
themachine.
4.Sharpenadullbladeonbothedgestomaintain
balance.Cleanthebladeandensurethatitis
balanced.
5.Replacethebladeifitisbent,worn,orcracked.
Anunbalancedbladecausesvibration,which
coulddamagethemotororcausepersonal
injury.
6.Whenservicingtheblade,beawarethatthe
bladecanstillmoveeventhoughthepower
sourceisoff.
7.Checkthegrasscollectionbagfrequentlyfor
deteriorationorwear,andreplaceawornbag
withaT oro[replacement]bag.
8.Forbestperformance,useonlygenuineT oro
replacementpartsandaccessories.Other
replacementpartsandaccessoriescouldbe
dangerous,andsuchusecouldvoidtheproduct
warranty.
9.Maintainthemachine—Keepcuttingedges
sharpandcleanforthebestandsafest
performance.Keephandlesdry,clean,andfree
fromoilandgrease.Keepguardsinplaceandin
workingorder.Keepbladessharp.Useidentical
replacementbladesonly.
10.Checkthemachinefordamagedparts—Ifthere
aredamagedguardsorotherparts,determine
whetherthemachinewilloperateproperly .
Checkformisalignedandbindingmovingparts,
brokenparts,mounting,andanyothercondition
thatmayaffectitsoperation.Unlessindicated
intheinstructions,haveanAuthorizedService
Dealerrepairorreplaceadamagedguardor
part.
11.Whenthebatterypackisnotinuse,keepit
awayfrommetalobjectssuchaspaperclips,
coins,keys,nails,andscrewsthatcanmakea
connectionfrom1terminaltoanother.Shorting
thebatteryterminalsmaycauseburnsorare.
12.Checkthebladeandmotormountingbolts
frequentlyfortightness.
13.Whenyouarenotusingthemachine,storeit
indoorsinadry,secureplaceoutofthereach
ofchildren.
14.CAUTION—Amistreatedbatterypackmay
presentariskofreorchemicalburn.Donot
disassemblethebatterypack.Donotheatthe
batterypackabove68°C(154°F)orincinerate
it.ReplacethebatterypackwithagenuineToro
batterypackonly;usinganothertypeofbattery
packmaycauseareorexplosion.Keep
batterypacksoutofthereachofchildrenand
intheoriginalpackaginguntilyouarereadyto
usethem.
15.Donotdisposeofthebatteryinare.The
cellmayexplode.Checkwithlocalcodesfor
possiblespecialdisposalinstructions.
SAVETHESE
INSTRUCTIONS
5

SafetyandInstructionalDecals
Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyarea
ofpotentialdanger.Replaceanydecalthatisdamagedormissing.
Model88650
decal140-3811
140-3811
1.ReadtheOperator’s
Manual.
2.Call2Recycle
recyclingprogram
®
battery
145-1479
3.Keepawayfromopenre
orames.
4.Donotexposetorain.
94-8072
1.Warning—readthe
Operator'sManual.
decal145-1479
2.Thrownobject
hazard—keepbystanders
away.
3.Cutting/dismember
hazard,mower
blade—removethekey
andreadtheOperator’s
Manualbeforeperforming
maintenance.
decal94-8072
4.Cutting/dismember
hazard,mower
blade—stayawayfrom
movingparts;keepall
guardsandshieldsin
place.
5.Cutting/dismember
hazard,mowerblade—do
notmowupordown
slopes;onlymowacross
slopes;shutofftheengine,
waitformovingpartsto
stop,andpickupdebris
beforemowing;look
behindyouwhenmowing
inreverse.
decal133-8061
133-8061
6

1.Thebatterypackischarging.
2.Thebatterypackisfullycharged.
3.Thebatterypackisoverorundertheappropriatetemperaturerange.
4.Batterypackchargingfault
decal137-9462
137-9462
decal137-9463
137-9463
decal137-9461
137-9461
1.ReadtheOperator’s
Manual.
2.Tostartthemachine,
squeezethebartothe
handleandpressthe
button.
1.Batterychargestatus
decal144-3175
144-3175
3.Toshutoffthemachine,
releasethebar.
7

decal139-8986
139-8986
8