
FormNo.3440-180RevD
Flex-ForcePowerSystem
MAXStringTrimmer
ModelNo.51832—SerialNo.321000001andUp
ModelNo.51832T—SerialNo.321000001andUp
ModelNo.51836—SerialNo.321000001andUp
™
60V
Registeratwww.T oro.com.
OriginalInstructions(EN)
*3440-180*

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,genuinethe
manufacturerparts,oradditionalinformation,contact
anAuthorizedServiceDealerorthemanufacturer
CustomerServiceandhavethemodelandserial
numbersofyourproductready.Figure1identies
thelocationofthemodelandserialnumbersonthe
product.Writethenumbersinthespaceprovided.
Important:Withyourmobiledevice,youcan
scantheQRcodeontheserialnumberdecal(if
equipped)toaccesswarranty,parts,andother
productinformation.
Introduction
Thistrimmerisintendedtobeusedbyresidential
homeownerstotrimgrassasneededoutdoors.Itis
designedtouseT oroFlex-Forcelithium-ionbattery
packModels88620(providedwithModel51832),
88625(providedwithModel51836),88640,88650,
88660,or88675.Thesebatterypacksaredesigned
tobechargedonlybybatterychargerModels88602
(providedwith51836),88605,or88610(provided
with51832).Usingthisproductforpurposesother
thanitsintendedusecouldprovedangeroustoyou
andbystanders.
Readthisinformationcarefullytolearnhowtooperate
andmaintainyourproductproperlyandtoavoid
injuryandproductdamage.Youareresponsiblefor
operatingtheproductproperlyandsafely .
Visitwww.T oro.comforproductsafetyandoperation
trainingmaterials,accessoryinformation,helpnding
adealer,ortoregisteryourproduct.
Model51832Tdoesnotincludeabatteryora
charger.
g372937
Figure1
1.Modelandserialnumberlocations
ModelNo.
SerialNo.
Thismanualidentiespotentialhazardsandhas
safetymessagesidentiedbythesafety-alertsymbol
(Figure2),whichsignalsahazardthatmaycause
seriousinjuryordeathifyoudonotfollowthe
recommendedprecautions.
sa-black
Figure2
Safety-alertsymbol
Thismanualuses2wordstohighlightinformation.
Importantcallsattentiontospecialmechanical
informationandNoteemphasizesgeneralinformation
worthyofspecialattention.
©2022—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420
Contactusatwww.Toro.com.
2
PrintedinChina
AllRightsReserved

Models51832,51832T,and51836includeModel
51810TPowerHeadandtheModel88716String
TrimmerAttachment.
TheModel51810TPowerHeadiscompatiblewith
avarietyofT oro-approvedattachmentsthat,when
combined,complywithspecicstandards;seethe
followingtableformoredetail.
Safety
WARNING—Whenusingelectricgardening
appliances,alwaysreadandfollowbasicsafety
warningsandinstructionstoreducetheriskofre,
electricshock,andpersonalinjury,includingthe
following:
Combination
String
Trimmer
Edger51810T88710
PoleSaw
Cultivator
Hedge
Trimmer
Power
Head
Model
51810T88716
51810T88714
51810T88715
51810T88713
Attachment
Model
Standard
Inadditiontotheseinstructions,alwaysreadand
followthesafetywarningsandinstructionsincluded
withyourspecicattachmentbeforeoperatingthe
Conformsto
ULSTD82
CertiedtoCSA
STDC22.2No.147
Conformsto
ULSTD82
CertiedtoCSA
STDC22.2No.147
Conformsto
ULSTD82
CertiedtoCSA
STDC22.2No.147
Conformsto
ULSTD82
CertiedtoCSA
STDC22.2No.147
ConformstoUL
STD62841-4-2
CertiedtoCSASTD
C22.262841-4-2
powerhead.
IMPORTANTSAFETY
INSTRUCTIONS
I.Training
1.Theoperatoroftheapplianceisresponsiblefor
anyaccidentsorhazardsoccurringtoothersor
theirproperty.
2.Donotallowchildrentouseorplaywiththe
appliance,batterypack,orthebatterycharger;
localregulationsmayrestricttheageofthe
operator.
3.Donotallowchildrenoruntrainedpeopleto
operateorservicethisdevice.Allowonlypeople
whoareresponsible,trained,familiarwiththe
instructions,andphysicallycapabletooperate
orservicethedevice.
4.Beforeusingtheappliance,batterypack,and
batterycharger,readalltheinstructionsand
cautionarymarkingsontheseproducts.
5.Becomefamiliarwiththecontrolsandproper
useoftheappliance,batterypack,andbattery
charger.
II.Preparation
1.Keepbystandersandchildrenawayfromthe
operatingarea.
2.UseonlythebatterypackspeciedbyToro.
Usingotheraccessoriesandattachmentsmay
increasetheriskofinjuryandre.
3.Pluggingthebatterychargerintoanoutletthatis
not120Vcancauseareorelectricshock.Do
notplugthebatterychargerintoanoutletother
than120V .Foradifferentstyleofconnection,
useanattachmentplugadapteroftheproper
congurationforthepoweroutletifneeded.
4.Donotuseadamagedormodiedbattery
packorbatterycharger,whichmayexhibit
unpredictablebehaviorthatresultsinre,
explosion,orriskofinjury .
5.Ifthesupplycordtothebatterychargeris
damaged,contactanAuthorizedServiceDealer
toreplaceit.
3

6.Donotusenon-rechargeablebatteries.
7.Chargethebatterypackwithonlythebattery
chargerspeciedbyT oro.Achargersuitablefor
1typeofbatterypackmaycreateariskofre
whenusedwithanotherbatterypack.
8.Chargethebatterypackinawell-ventilatedarea
only.
9.Donotexposeabatterypackorbatterycharger
toreortotemperatureshigherthan100°C
(212°F).
10.Followallcharginginstructionsanddo
notchargethebatterypackoutsideofthe
temperaturerangespeciedintheinstructions.
Otherwise,youmaydamagethebatterypack
andincreasetheriskofre.
11.Donotoperatetheappliancewithoutallguards
andothersafetyprotectivedevicesinplaceand
functioningproperlyontheappliance.
12.Dressproperly—Wearappropriateclothing,
includingeyeprotection;longpants;substantial,
slip-resistantfootwear;rubbergloves;and
hearingprotection.Tiebacklonghairanddo
notwearlooseclothingorloosejewelrythatcan
getcaughtinmovingparts.Wearadustmaskin
dustyoperatingconditions.
III.Operation
1.Donotoperatethepowerheadwithoutan
attachmentinstalled.
2.Avoiddangerousenvironments—Donotusethe
applianceinrainorindamporwetlocations.
3.Usetheproperapplianceforyour
application—Usingtheappliancefor
purposesotheranitsintendedusecouldprove
dangeroustoyouandbystanders.
4.Preventunintentionalstarting—Ensurethatthe
switchisintheOFFpositionbeforeconnecting
tothebatterypackandhandlingtheappliance.
Donotcarrytheappliancewithyourngeron
theswitchorenergizetheappliancewiththe
switchintheONposition.
5.Operatetheapplianceonlyindaylightorgood
articiallight.
6.Removethebatterypackfromtheappliance
beforeadjustingitorchangingaccessories.
7.Keepyourhandsandfeetawayfromthecutting
areaandallmovingparts.
8.Stoptheappliance,removethebatterypack
fromtheappliance,andwaitforallmovement
tostopbeforeadjusting,servicing,cleaning,or
storingtheappliance.
9.Removethebatterypackfromtheappliance
wheneveryouleaveitunattended.
10.Donotforcetheappliance—Allowtheappliance
todothejobbetterandsaferattheratefor
whichitwasdesigned.
11.Donotoverreach—Keepproperfootingand
balanceatalltimes,especiallyonslopes.Walk,
neverrunwiththeappliance.
12.Stayalert—Watchwhatyouaredoinganduse
commonsensewhenoperatingtheappliance.
Donotusetheappliancewhileill,tired,orunder
theinuenceofalcoholordrugs.
13.Ensurethattheventilationopeningsarekept
clearofdebris.
14.Underabusiveconditions,thebatterypackmay
ejectliquid;avoidcontact.Ifyouaccidently
comeintocontactwiththeliquid,ushwith
water.Iftheliquidcontactsyoureyes,seek
medicalhelp.Liquidejectedfromthebattery
packmaycauseirritationorburns.
15.CAUTION—Amistreatedbatterypackmay
presentariskofreorchemicalburn.Donot
disassemblethebatterypack.Donotheatthe
batterypackabove68°C(154°F)orincinerate
it.ReplacethebatterypackwithagenuineToro
batterypackonly;usinganothertypeofbattery
packmaycauseareorexplosion.Keep
batterypacksoutofthereachofchildrenand
intheoriginalpackaginguntilyouarereadyto
usethem.
IV.MaintenanceandStorage
1.Maintaintheappliancewithcare—Keepitclean
andingoodrepairforbestperformanceandto
reducetheriskofinjury.Followtheinstructions
forlubricatingandchangingaccessories.Keep
handlesdry ,clean,andfreefromoilandgrease.
2.Whenthebatterypackisnotinuse,keepit
awayfrommetalobjectssuchaspaperclips,
coins,keys,nails,andscrewsthatcanmakea
connectionfrom1terminaltoanother.Shorting
thebatteryterminalsmaycauseburnsorare.
3.Keepyourhandsandfeetawayfrommoving
parts.
4.Stoptheappliance,removethebatterypack
fromtheappliance,andwaitforallmovement
tostopbeforeadjusting,servicing,cleaning,or
storingtheappliance.
5.Checktheappliancefordamagedparts—Ifthere
aredamagedguardsorotherparts,determine
whetheritwilloperateproperly .Checkfor
misalignedandbindingmovingparts,broken
parts,mounting,andanyotherconditionthat
mayaffectitsoperation.Unlessindicatedinthe
instructions,haveanAuthorizedServiceDealer
repairorreplaceadamagedguardorpart.
4

6.Donotreplacetheexistingnon-metalliccutting
meansontheappliancewithametalliccutting
means.
7.Donotattempttoserviceorrepairtheappliance,
batterypack,orbatterychargerexceptas
indicatedintheinstructions.HaveanAuthorized
ServiceDealerperformserviceusingidentical
replacementpartstoensurethattheproductis
safelymaintained.
8.Storeanidleapplianceindoorsinaplacethatis
dry,secure,andoutofthereachofchildren.
9.Donotdisposeofthebatteryinare.The
cellmayexplode.Checkwithlocalcodesfor
possiblespecialdisposalinstructions.
SAVETHESE
INSTRUCTIONS
5

SafetyandInstructionalDecals
Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyarea
ofpotentialdanger.Replaceanydecalthatisdamagedormissing.
decal145-3141
145-3141
Model88620
1.ReadtheOperator’s
Manual.
2.Call2Recycle®battery
recyclingprogram
140-8475
3.Keepawayfromopenre
orames.
4.Donotexposetorain.
Model88625
decal140-8475
137-9454
1.ReadtheOperator’s
Manual.
2.Call2Recycle
recyclingprogram
®
battery
3.Keepawayfromopenre
orames.
4.Donotexposetorain.
decal137-9454
1.Batterychargestatus
decal137-9461
137-9461
decal144-3098
144-3098
6

decal144-3094
144-3094
1.Thebatterypackis
charging.
2.Thebatterypackisfully
charged.
3.Thebatterypackisover
orundertheappropriate
temperaturerange.
4.Batterypackchargingfault
decal139-5210
139-5210
1.Warning—readtheOperator’sManual;stayawayfrom
movingparts;keepallguardsinplace;weareyeprotection;
donotoperateinwetconditions.
decal144-3088
144-3088
decal144-3096
144-3096
decal137-9462
137-9462
7

1.Thebatterypackischarging.
2.Thebatterypackisfullycharged.
3.Thebatterypackisoverorundertheappropriatetemperaturerange.
4.Batterypackchargingfault
decal137-9463
137-9463
8