Toro 30839N User manual

FormNo.3374-318RevA
Groundsmaster®3500-DTraction
Unit
ModelNo.30839N—SerialNo.313000001andUp
Registeratwww.Toro.com.
OriginalInstructions(EN)*3374-318*A

WARNING
CALIFORNIA
Proposition65Warning
Dieselengineexhaustandsomeofits
constituentsareknowntotheStateof
Californiatocausecancer,birthdefects,
andotherreproductiveharm.
Important:Thisengineisnotequippedwithaspark
arrestermufer.ItisaviolationofCaliforniaPublic
ResourceCodeSection4442touseoroperatetheengine
onanyforest-covered,brush-covered,orgrass-covered
land.Otherstatesorfederalareasmayhavesimilarlaws.
Introduction
Thismachineisaride-on,rotary-bladelawnmowerintended
tobeusedbyprofessional,hiredoperatorsincommercial
applications.Itisprimarilydesignedforcuttinggrasson
well-maintainedlawnsinparks,golfcourses,sportselds,
andoncommercialgrounds.Itisnotdesignedforcutting
brush,mowinggrassandothergrowthalongsidehighways,
orforagriculturaluses.
Readthisinformationcarefullytolearnhowtooperateand
maintainyourproductproperlyandtoavoidinjuryand
productdamage.Youareresponsibleforoperatingthe
productproperlyandsafely.
YoumaycontactTorodirectlyatwww .Toro.comforproduct
andaccessoryinformation,helpndingadealer,ortoregister
yourproduct.
Wheneveryouneedservice,genuineToroparts,oradditional
information,contactanAuthorizedServiceDealerorToro
CustomerServiceandhavethemodelandserialnumbers
ofyourproductready.Figure1identiesthelocationofthe
modelandserialnumbersontheproduct.Writethenumbers
inthespaceprovided.
Figure1
1.Modelandserialnumberlocation
ModelNo.
SerialNo.
Thismanualidentiespotentialhazardsandhassafety
messagesidentiedbythesafetyalertsymbol(Figure2),
whichsignalsahazardthatmaycauseseriousinjuryordeath
ifyoudonotfollowtherecommendedprecautions.
Figure2
1.Safetyalertsymbol
Thismanualuses2otherwordstohighlightinformation.
Importantcallsattentiontospecialmechanicalinformation
andNoteemphasizesgeneralinformationworthyofspecial
attention.
©2012—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN554202
Contactusatwww.Toro.com.
PrintedintheUSA.
AllRightsReserved

Contents
Introduction..................................................................2
Safety...........................................................................4
SafeOperatingPractices...........................................4
ToroMowerSafety..................................................6
SafetyandInstructionalDecals.................................7
Setup...........................................................................11
1Activating,Charging,andConnectingthe
Battery..............................................................11
2CheckingtheAngleIndicator.................................12
3AdjustingtheLiftArms........................................13
4RearBallast.........................................................14
ProductOverview.........................................................14
Controls...............................................................14
Specications........................................................16
Attachments/Accessories........................................16
Operation....................................................................17
CheckingtheEngineOilLevel.................................17
FillingtheFuelTank...............................................17
CheckingtheCoolingSystem...................................18
CheckingtheHydraulicSystem................................19
CheckingtheTirePressure......................................19
TorquingtheWheelNuts........................................20
StartingandStoppingtheEngine..............................20
BleedingtheFuelSystem.........................................20
CheckingtheInterlockSystem.................................21
TowingtheTractionUnit.........................................21
StandardControlModule(SCM)..............................21
OperatingTips......................................................23
Maintenance.................................................................26
RecommendedMaintenanceSchedule(s)......................26
DailyMaintenanceChecklist....................................27
ServiceIntervalChart.............................................28
PremaintenanceProcedures........................................28
RemovingtheHood...............................................28
Lubrication...............................................................29
GreasingtheBearingsAndBushings.........................29
EngineMaintenance..................................................31
ServicingtheAirCleaner.........................................31
ChangingtheEngineOilandFilter...........................32
FuelSystemMaintenance...........................................33
ServicingtheFuelTank...........................................33
InspectingtheFuelLinesandConnections.................33
DrainingtheWaterSeparator...................................33
ChangingtheFuelFilterCanister..............................33
BleedingAirfromtheInjectors................................33
ElectricalSystemMaintenance....................................34
CaringfortheBattery..............................................34
Fuses....................................................................34
DriveSystemMaintenance.........................................35
AdjustingtheTractionDriveforNeutral....................35
CoolingSystemMaintenance......................................35
CleaningtheEngineCoolingSystem.........................35
BrakeMaintenance....................................................36
AdjustingtheParkingBrake.....................................36
BeltMaintenance......................................................36
ServicingtheEngineBelts.......................................36
ControlsSystemMaintenance.....................................37
AdjustingtheThrottle.............................................37
HydraulicSystemMaintenance....................................38
ChangingtheHydraulicFilter...................................38
ChangingtheHydraulicFluid...................................38
CheckingtheHydraulicLinesandHoses....................39
Storage........................................................................39
StoringtheBattery..................................................39
PreparationforSeasonalStorage..............................39
Schematics...................................................................41
3

Safety
ThismachinemeetsorexceedsANSIB71.4-2004
specicationsineffectatthetimeofproductionwhen
equippedwithrequiredweightaslistedinRearBallast
section.
Improperuseormaintenancebytheoperatoror
ownercanresultininjury.Toreducethepotential
forinjury,complywiththesesafetyinstructionsand
alwayspayattentiontothesafetyalertsymbol,which
meansCaution,Warning,orDanger—personalsafety
instruction.Failuretocomplywiththeinstructionmay
resultinpersonalinjuryordeath.
SafeOperatingPractices
ThefollowinginstructionsarefromtheCENstandardEN
836:1997,ISOstandard5395:1990,andANSIB71.4-2004.
Training
•ReadtheOperator’sManualandothertrainingmaterial
carefully.Befamiliarwiththecontrols,safetysigns,and
theproperuseoftheequipment.
•Iftheoperatorormechaniccannotreadthelanguage
ofthismanual,itistheowner’sresponsibilitytoexplain
thismaterialtothem.
•Neverallowchildrenorpeopleunfamiliarwiththese
instructionstouseorservicethemower.Local
regulationsmayrestricttheageoftheoperator.
•Nevermowwhilepeople,especiallychildren,orpetsare
nearby.
•Keepinmindthattheoperatororuserisresponsiblefor
accidentsorhazardsoccurringtootherpeopleortheir
property.
•Donotcarrypassengers.
•Alldriversandmechanicsshouldseekandobtain
professionalandpracticalinstruction.Theowneris
responsiblefortrainingtheusers.Suchinstructionshould
emphasizethefollowing:
–Theneedforcareandconcentrationwhenworking
withride-onmachines
–Controlofaride-onmachineslidingonaslopewill
notberegainedbytheapplicationofthebrake.The
mainreasonsforlossofcontrolareasfollows:
◊Insufcientwheelgrip
◊Beingdriventoofast
◊Inadequatebraking
◊Thetypeofmachineisunsuitableforthetask
◊Lackofawarenessoftheeffectofground
conditions,especiallyslopes
◊Incorrecthitchingandloaddistribution
Preparation
•Whilemowing,alwayswearsubstantialfootwear,long
trousers,hardhat,safetyglasses,andhearingprotection.
Longhair,looseclothing,orjewelrymaygettangled
inmovingparts.Donotoperatetheequipmentwhen
barefootorwearingopensandals.
•Thoroughlyinspecttheareawheretheequipmentisto
beusedandremoveallobjectswhichmaybethrownby
themachine.
•Warning—Fuelishighlyammable.Takethefollowing
precautions:
–Storefuelincontainersspecicallydesignedforthis
purpose.
–Refueloutdoorsonlyanddonotsmokewhile
refueling.
–Addfuelbeforestartingtheengine.Neverremove
thecapofthefueltankoraddfuelwhiletheengineis
runningorwhentheengineishot.
–Iffuelisspilled,donotattempttostarttheengine
butmovethemachineawayfromtheareaofspillage
andavoidcreatinganysourceofignitionuntilfuel
vaporshavedissipated.
–Replaceallfueltankandcontainercapssecurely.
•Replacefaultysilencers/mufers.
•Beforeusing,alwaysvisuallyinspecttoseethatthe
blades,bladebolts,andcuttingassemblyarenotworn
ordamaged.Replacewornordamagedbladesandbolts
insetstopreservebalance.
•Onmulti-bladedmachines,takecareasrotatingoneblade
cancauseotherbladestorotate.
•Evaluatetheterraintodeterminewhataccessoriesand
attachmentsareneededtoproperlyandsafelyperform
thejob.Onlyuseaccessoriesandattachmentsapproved
bythemanufacturer.
•Checkthatoperator’spresencecontrols,safetyswitches
andshieldsareattachedandfunctioningproperly.Donot
operateunlesstheyarefunctioningproperly.
Operation
•Donotoperatetheengineinaconnedspacewhere
dangerouscarbonmonoxidefumescancollect.
•Mowonlyindaylightoringoodarticiallight.
•Beforeattemptingtostarttheengine,disengageallblade
attachmentclutches,shiftintoneutral,andengagethe
parkingbrake.Onlystarttheenginefromtheoperator’s
position.NeverremovetheROPSandalwayswearthe
seatbeltsduringoperation.
•Donotputhandsorfeetnearorunderrotatingparts.
Keepclearofthedischargeopeningatalltimes.
•Rememberthereisnosuchthingasasafeslope.Travel
ongrassslopesrequiresparticularcare.Dothefollowing
toguardagainstoverturning:
4

–Donotstoporstartsuddenlywhengoingupor
downhill.
–Keepmachinespeedslowonslopesandduringtight
turns.
–Stayalertforhumpsandhollowsandotherhidden
hazards.
–Nevermowacrossthefaceoftheslope,unlessthe
mowerisdesignedforthispurpose.
•Stayalertforholesintheterrainandotherhiddenhazards.
•Watchoutfortrafcwhencrossingornearroadways.
•Stopthebladesfromrotatingbeforecrossingsurfaces
otherthangrass.
•Whenusinganyattachments,neverdirectdischargeof
materialtowardbystandersnorallowanyonenearthe
machinewhileinoperation.
•Neveroperatethemachinewithdamagedguards,shields,
orwithoutsafetyprotectivedevicesinplace.Besureall
interlocksareattached,adjustedproperly,andfunctioning
properly.
•Donotchangetheenginegovernorsettingsoroverspeed
theengine.Operatingtheengineatexcessivespeedmay
increasethehazardofpersonalinjury.
•Dothefollowingbeforeleavingtheoperator’sposition:
–Stoponlevelground.
–Disengagethepowertake-offandlowerthe
attachments.
–Changeintoneutralandsettheparkingbrake.
–Stoptheengineandremovethekey.
•Disengagethedrivetoattachments,stoptheengine,and
removetheignitionkeyinthefollowingconditions:
–Beforemakingheightadjustments,unlessthe
adjustmentcanbemadefromtheoperator’sposition.
–Beforeclearingblockages
–Beforechecking,cleaning,orworkingonthemower
–Afterstrikingaforeignobjectorifanabnormal
vibrationoccurs(checkimmediately).Inspectthe
mowerfordamageandmakerepairsbeforerestarting
andoperatingtheequipment.Torqueallthespindle
pulleynutsto130to150ft-lb(176to203N-m).
•Disengagethedrivetoattachmentswhentransportingor
whennotmachineisnotinuse.
•Stoptheengineanddisengagethedrivetoattachments
beforethefollowing:
–Refueling
–Makingheightadjustment,unlesstheadjustmentcan
bemadefromtheoperator'sposition
•Reducethethrottlesettingbeforestoppingtheengine
and,iftheengineisprovidedwithafuelshut-offvalve,
turnthefueloffattheconclusionofmowing.
•Neverraisethecuttingunitwiththebladesrunning.
•Keephandsandfeetawayfromthecuttingunits.
•Lookbehindanddownbeforebackinguptobesureof
aclearpath.
•Slowdownandusecautionwhenmakingturnsand
crossingroadsandsidewalks.
•Donotoperatethemowerundertheinuenceofalcohol
ordrugs.
•Lightningcancausesevereinjuryordeath.Iflightning
isseenorthunderisheardinthearea,donotoperate
themachine;seekshelter.
•Usecarewhenloadingorunloadingthemachineintoa
trailerortruck.
•Theoperatorshallturnonashingwarninglights,if
provided,whenevertravelingonapublicroad,except
wheresuchuseisprohibitedbylaw.
MaintenanceandStorage
•Keepallnuts,boltsandscrewstighttobesurethe
equipmentisinsafeworkingcondition.
•Neverstoretheequipmentwithfuelinthetankinsidea
buildingwherefumesmayreachanopenameorspark.
•Allowtheenginetocoolbeforestoringinanyenclosure.
•Toreducetherehazard,keeptheengine,
silencer/mufer,batterycompartmentfuelstoragearea,
cuttingunitsanddrivesfreeofgrass,leaves,orexcessive
grease.Cleanupoilorfuelspillage.
•Replacewornordamagedpartsforsafety.
•Ifthefueltankhastobedrained,dothisoutdoors.
•Onmulti-bladedmachines,takecareasrotatingoneblade
cancauseotherbladestorotate.
•Whenmachineistobeparked,stored,orleftunattended,
lowerthecuttingunitsunlessapositivemechanicallock
isprovided.
•Disengagedrives,lowerthecuttingunits,setparking
brake,stopengineandremovekey.Waitforallmovement
tostopbeforeadjusting,cleaningorrepairing.
•Shutofffuelwhilestoringortransporting.Donotstore
fuelnearames.
•Parkthemachineonlevelground.Neverallowuntrained
personneltoservicemachine.
•Usejackstandstosupportcomponentswhenrequired.
•Carefullyreleasepressurefromcomponentswithstored
energy.
•Disconnectbatterybeforemakinganyrepairs.Disconnect
thenegativeterminalrstandthepositivelast.Reconnect
positiverstandnegativelast.
•Usecarewhencheckingtheblades.Wrapthebladesor
weargloves,andusecautionwhenservicingthem.Only
replaceblades.Neverstraightenorweldthem.
•Keephandsandfeetawayfrommovingparts.Ifpossible,
donotmakeadjustmentswiththeenginerunning.
•Chargebatteriesinanopenwellventilatedarea,away
fromsparkandames.Unplugchargerbeforeconnecting
5

ordisconnectingfrombattery.Wearprotectiveclothing
anduseinsulatedtools.
ToroMowerSafety
ThefollowinglistcontainssafetyinformationspecictoToro
productsorothersafetyinformationthatyoumustknowthat
isnotincludedinthestandards.
Thisproductiscapableofamputatinghandsandfeetand
throwingobjects.Alwaysfollowallsafetyinstructionsto
avoidseriousinjuryordeath.
Useofthisproductforpurposesotherthanitsintendeduse
couldprovedangeroustouserandbystanders.
WARNING
Engineexhaustcontainscarbonmonoxide,which
isanodorless,deadlypoisonthatcankillyou.Do
notrunengineindoorsorinanenclosedarea.
Preparation
Besuretoestablishyourownspecialproceduresandwork
rulesforunusualoperatingconditions(e.g.,slopestoosteep
foroperation).Surveythecompletemowingsiteto
determinewhichhillscanbesafelyoperatedon.When
performingthissitesurvey,alwaysusecommonsenseand
takeintoconsiderationtheturfconditionandtherolloverrisk.
Todeterminewhichhillsorslopesmaybesafelyoperated
on,usetheinclinometerprovidedwitheachmachine.To
performasitesurvey,followtheprocedureoutlinedinthe
Operationsectionofthethismanual.Themaximumside
hillangleisdetailedontheslopedecalafxednearthe
angleindicator.
Training
Theoperatormustbeskilledandtrainedinhowtodriveon
hillsides.Failuretousecautiononslopesorhillsmaycause
thevehicletotiporroll,possiblyresultinginpersonalinjury
ordeath.
Operation
•Knowhowtostopthemachineandenginequickly.
•Donotoperatethemachinewhilewearingtennisshoes
orsneakers.
•Wearingsafetyshoesandlongpantsisadvisableand
requiredbysomelocalordinancesandinsurance
regulations.
•Keephands,feet,andclothingawayfrommovingparts
andthemowerdischargearea.
•Fillthefueltankuntillevelis1/2inch(12mm)belowthe
bottomofthellerneck.Donotoverll.
•Checkthesafetyinterlockswitchesdailyforproper
operation.Ifaswitchshouldfail,replacetheswitch
beforeoperatingthemachine.
•Whenstartingtheengine,engagetheparkingbrake,put
thetractionpedalinneutral,anddisengagetheblade
drive.Aftertheenginestarts,releasetheparkingbrake
andkeepyourfootoffofthetractionpedal.Themachine
mustnotmove.Ifmovementisevident,refertothe
Maintenancesectionofthismanualtoadjustthetraction
drive.
•Useextremecautionwhenoperatingclosetosandtraps,
ditches,creeks,steephillsides,orotherhazards.
•Reducespeedwhenmakingsharpturns.
•Donotturnonhills.
•Donotoperateonasidehillthatistoosteep.Arollover
mayoccurbeforelosingtraction.
•Onmodels30839,30843and30807,theslopeangle
atwhichthemachineswilltipisdependentonmany
factors.Amongthesearemowingconditionssuchas
wetorundulatingterrain,speed(especiallyinturns),
positionofthecuttingunits(withtheSidewinder),tire
pressure,andoperatorexperience.Atsidehillangles
of20degreesorless,theriskofarolloverislow .As
theslopeangleincreasestoarecommendedmaximum
limitof25degrees,theriskofarolloverincreasestoa
moderatelevel.Donotexceeda25degreesidehill
slopeanglebecausetheriskofarolloverandserious
injuryordeathisveryhigh.
•Onmodel30849,theslopeangleatwhichthemachine
willtipisdependentonmanyfactors.Amongtheseare
mowingconditionssuchaswetorundulatingterrain,
speed(especiallyinturns),positionofthecutting
units(withtheSidewinder),tirepressure,andoperator
experience.Atsidehillanglesof15degreesorless,the
riskofarolloverislow.Astheslopeangleincreasestoa
recommendedmaximumlimitof20degrees,theriskofa
rolloverincreasestoamoderatelevel.Donotexceeda
20degreesidehillslopeanglebecausetheriskofa
rolloverandseriousinjuryordeathisveryhigh.
•Forsteeringcontrol,lowerthecuttingunitswhengoing
downslopes.
•Avoidsuddenstopsandstarts.
•Usethereversepedalforbraking.
•Watchfortrafcwhennearorcrossingroads.Always
yieldtheright-of-way.
•Raisethecuttingunitswhendrivingfromoneworkarea
toanother.
•Donottouchtheengine,mufer,exhaustpipe,or
hydraulictankwhiletheengineisrunningorsoonafter
ithasstoppedbecausetheseareascouldbehotenough
tocauseburns.
•Thismachineisnotdesignedorequippedforon-roaduse
andisaslow-movingvehicle.Ifyoumustcrossortravel
onapublicroad,youshouldbeawareofandcomplywith
localregulations,suchasrequiredlights,slowmoving
vehiclesigns,andreectors.
6

MaintenanceandStorage
•Beforeservicingormakingadjustments,stoptheengine
andremovetheignitionkey.
•Ensurethattheentiremachineisproperlymaintained
andingoodoperatingcondition.Frequentlycheckall
nuts,bolts,screws,andhydraulicttings.
•Makesureallhydrauliclineconnectorsaretightandall
hydraulichosesandlinesareingoodconditionbefore
applyingpressuretothesystem.
•Keepyourbodyandhandsawayfrompinholeleaksor
nozzlesthatejecthydraulicuidunderhighpressure.
Usepaperorcardboard,notyourhands,tosearchfor
leaks.Hydraulicuidescapingunderpressurecanhave
sufcientforcetopenetratetheskinandcauseserious
injury.Ifuidisinjectedintotheskinitmustbesurgically
removedwithinafewhoursbyadoctorfamiliarwiththis
formofinjuryorgangrenemayresult.
•Beforedisconnectingorperforminganyworkonthe
hydraulicsystem,allpressureinthesystemmustbe
relievedbystoppingtheengineandloweringthecutting
unitstotheground.
•Iftheenginemustberunningtoperformamaintenance
adjustment,keephands,feet,clothing,andanypartsof
thebodyawayfromthecuttingunits,attachments,and
anymovingparts.Keepeveryoneaway.
•Donotoverspeedtheenginebychanginggovernor
settings.Toensuresafetyandaccuracy,havean
AuthorizedToroDistributorcheckthemaximumengine
speedwithatachometer.
•Theenginemustbeshutoffbeforecheckingtheoilor
addingoiltothecrankcase.
•Ifmajorrepairsareeverneededorifassistanceisdesired,
contactanAuthorizedToroDistributor.
•Toensureoptimumperformanceandcontinuedsafety
certicationofthemachine,useonlygenuineToro
replacementpartsandaccessories.Replacementparts
andaccessoriesmadebyothermanufacturerscouldbe
dangerous,andsuchusecouldvoidtheproductwarranty.
SafetyandInstructionalDecals
Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyareaofpotential
danger.Replaceanydecalthatisdamagedorlost.
100-4837
93-7276
1.Explosionhazard—weareyeprotection.
2.Causticliquid/chemicalburnhazard—toperformrstaid,
ushwithwater.
3.Firehazard—nore,openames,orsmoking.
4.Poisonhazard—keepchildrenasafedistancefromthe
battery.
93-7818
1.Warning—readtheOperator'sManualforinstructionson
torquingthebladebolt/nutto85-110ft-lb(115-149N-m).
93-6681
1.Cutting/dismemberment—hazard,fan-stayawayfrom
movingparts.
7

106-6753
1.Thrownobjecthazard—keepbystandersasafedistance
fromthemachine.
2.Cutting/dismembermenthazardofhandorfoot,mower
blade—stayawayfrommovingparts.
104-0484
106-6754
1.Warning—donottouchthehotsurface.
2.Cutting/dismembermenthazard,fanandentanglement
hazard,belt—stayawayfrommovingparts.
99-3444
99-3444
1.Reelspeed—fast2.Reelspeed—slow
BatterySymbols
Someorallofthesesymbolsareonyourbattery
1.Explosionhazard6.Keepbystandersasafe
distancefromthebattery.
2.Nore,opename,or
smoking.
7.Weareyeprotection;
explosivegasescan
causeblindnessandother
injuries
3.Causticliquid/chemical
burnhazard
8.Batteryacidcancause
blindnessorsevereburns.
4.Weareyeprotection9.Flusheyesimmediately
withwaterandgetmedical
helpfast.
5.ReadtheOperator's
Manual.
10.Containslead;donot
discard.
117-4764
1.Thrownobjecthazard—keepbystandersasafedistance
fromthemachine.
2.Cuttinghazardofhand,mowerblade—stayawayfrom
movingparts,keepallguardsandshieldsinplace.
3.Cuttinghazardoffoot,mowerblade—stayawayfrom
movingparts,keepallguardsandshieldsinplace.
8

104-5191
1.Engagethepowertakeoff
(PTO).
5.Raisethecuttingunits.9.Engine—run13.Slow
2.Disengagethepowertake
off(PTO).
6.Movethecuttingunitsto
theleft.
10.Engine—start
3.Lowerthecuttingunits.7.Moverearwardtolockthe
liftlever.
11.Fast
4.Movethecuttingunitsto
theright.
8.Engine—stop12.Continuousvariablesetting
9

106-9290
1.Inputs5.Inseat9.Outputs13.Start
2.Notactive6.PowerT ake-off(PTO)10.PowerT akeOff(PTO)14.Power
3.Hightemperatureshutdown7.ParkingbrakeOff11.Start
4.Hightemperaturewarning8.Neutral12.EnergizetoRun(ETR)
117-5103
10

Setup
LooseParts
Usethechartbelowtoverifythatallpartshavebeenshipped.
ProcedureDescriptionQty.Use
2Inclinometer1Checktheangleindicator
3Nopartsrequired–Adjusttheliftarms.
4Nopartsrequired–Rearballast.
MediaandAdditionalParts
DescriptionQty.Use
Ignitionkeys2Starttheengine.
Operator'sManual1
EngineOperator'sManual1Readbeforeoperatingthemachine.
PartsCatalog1Usetolookupandorderparts.
Operatorvideo1Viewbeforeoperatingthemachine.
Pre-deliverychecklist1Checktoensurethatthemachinehasbeenproperlyset
up.
Note:Determinetheleftandrightsidesofthemachine
fromthenormaloperatingposition.
1
Activating,Charging,and
ConnectingtheBattery
NoPartsRequired
Procedure
WARNING
CALIFORNIA
Proposition65Warning
Batteryposts,terminals,andrelated
accessoriescontainleadandleadcompounds,
chemicalsknowntotheStateofCalifornia
tocausecancerandreproductiveharm.
W ash hands after handling .
Note:Ifthebatteryisnotlledwithelectrolyteoractivated,
bulkelectrolytewith1.260specicgravitymustbepurchased
fromalocalbatterysupplyoutletandaddedtothebattery.
DANGER
Batteryelectrolytecontainssulfuricacidwhichisa
deadlypoisonandcausessevereburns.
•Donotdrinkelectrolyteandavoidcontactwith
skin,eyes,orclothing.Wearsafetyglassesto
shieldyoureyesandrubberglovestoprotect
yourhands.
•Fillthebatterywherecleanwaterisalways
availableforushingtheskin.
1.Openthehood.
2.Removethebatterycover(Figure3).
11

Figure3
1.Batterycover
3.Removethellercapsfromthebatteryandslowlyll
eachcelluntilelectrolyteisjustabovetheplates.
4.Installthellercapsandconnecta3to4ampbattery
chargertothebatteryposts.Chargethebatteryata
rateof3to4amperesfor4to8hours.
WARNING
Chargingthebatteryproducesgassesthatcan
explode.
•Keepsparksandamesawayfrombattery.
•Neversmokenearthebattery.
5.Whenthebatteryischarged,disconnectthecharger
fromtheelectricaloutletandbatteryposts.
6.Removethellercaps.Slowlyaddelectrolytetoeach
celluntilthelevelisuptothellring.Installtheller
caps.
Important:Donotoverllthebattery.Electrolyte
willoverowontootherpartsofthemachineand
severecorrosionanddeteriorationwillresult.
7.Installthepositivecable(red)tothepositive(+)
terminalandthenegativecable(black)tothenegative
(–)terminalofthebatteryandsecurethemwithbolts
andnuts(Figure4).Makesurethatthepositive(+)
terminalisallofthewayontothepostandthecable
ispositionedsnugtothebattery.Thecablemustnot
contactthebatterycover.
WARNING
Incorrectbatterycableroutingcoulddamage
thetractorandcablescausingsparks.Sparks
cancausethebatterygassestoexplode,
resultinginpersonalinjury.
•Alwaysdisconnectthenegative(black)
batterycablebeforedisconnectingthe
positive(red)cable.
•Alwaysconnectthepositive(red)battery
cablebeforeconnectingthenegative
(black)cable.
Figure4
1.Positive(+)batterycable2.Negative(–)batterycable
Important:Ifthebatteryiseverremoved,make
surethatthebatteryclampboltsareinstalledwith
theboltheadspositionedonthebottomsideand
thenutsonthetopside.Iftheclampboltsare
reversed,theymayinterferewiththehydraulic
tubeswhenshiftingthecuttingunits.
8.CoatbothbatteryconnectionswithGrafo112X(skin
over)grease,ToroPartNo.505-47,petroleumjelly,or
lightgreasetopreventcorrosion.
9.Slidetherubberbootoverthepositiveterminalto
preventapossibleshortfromoccurring.
10.Installthebatterycover.
2
CheckingtheAngleIndicator
Partsneededforthisprocedure:
1Inclinometer
Procedure
DANGER
Toreduceriskofinjuryordeathduetorollover,do
notoperatethemachineonsidehillssteeperthan
25º.
1.Parkthemachineonaat,levelsurface.
2.Verifythatthemachineislevelbyplacingahandheld
inclinometer(suppliedwiththemachine)ontheframe
crossrail,bythefueltank(Figure5).Theinclinometer
shouldreadzerodegreeswhenviewedfromthe
operator’sposition.
12

Figure5
1.Angleindicator
3.Iftheinclinometerdoesnotreadzerodegrees,move
themachinetoalocationwhereazerodegreereading
isobtained.Theangleindicator,mountedonthe
machine,shouldnowreadzerodegreesaswell.
4.Iftheangleindicatordoesnotreadzerodegrees,
loosenthetwoscrewsandnutssecuringtheangle
indicatortothemountingbracket,adjusttheindicator
toobtainazerodegreereading,andtightenthebolts.
3
AdjustingtheLiftArms
NoPartsRequired
Procedure
1.Starttheengine,raisethecuttingunits,andcheckto
ensurethattheclearancebetweeneachliftarmandthe
oorplatebracketis0.18to0.32inches(5to8mm)
(Figure6).
Figure6
cuttingunitsremovedforclarity
1.Liftarm3.Clearance
2.Floorplatebracket
Iftheclearanceisnotinthisrange,adjustitasfollows:
A.Backoffthestopbolts(Figure7).
Figure7
1.Stopbolt3.Clearance
2.Liftarm
B.Backoffthejamnutonthecylinder(Figure8).
Figure8
1.Frontcylinder2.Jamnut
C.Removethepinfromtherodendandrotatethe
clevis.
D.Installthepinandchecktheclearance.Repeat
theprocedureifrequired.
E.Tightentheclevisjamnut.
2.Checktomakesurethattheclearancebetweeneachlift
armandstopboltis0.005to0.040inches(0.13to1.02
mm)(Figure7).Iftheclearanceisnotinthisrange,
adjustthestopboltstoattainclearance.
3.Starttheengine,raisethecuttingunits,andcheckto
makesurethattheclearancebetweenthewearstrapon
thetopoftherearcuttingunitwearbarandthebumper
strapis0.02to0.10inches(0.51to2.54mm)(Figure9).
13

Figure9
1.Wearbar2.Bumperstrap
Iftheclearanceisnotinthisrange,adjusttherear
cylinderasfollows:
Note:Iftherearliftarmclunksduringtransport,
clearancecanbereduced.
A.Lowerthecuttingunitsandbackoffthejamnut
onthecylinder(Figure10).
Figure10
1.Rearcylinder2.Adjustingnut
B.Graspthecylinderrodclosetothenutwitha
pliersandragandrotatetherod.
C.Raisethecuttingunitsandchecktheclearance.
Repeattheprocedureifrequired.
D.Tightentheclevisjamnut.
Important:Lackofclearanceatthefrontstopsorrear
wearbarcoulddamagetheliftarms.
4
RearBallast
NoPartsRequired
Procedure
ThetractionunitconformstoANSIstandardB71.4-2004
standardwhen50lb.(22.6kg)ofcalciumchlorideballast
isaddedtotherearwheels.
Important:Ifapunctureoccursinatirewithcalcium
chloride,removethemachinefromtheturfasquickly
aspossible.Topreventpossibledamagetotheturf,
immediatelysoaktheaffectedareawithwater.
ProductOverview
Controls
Figure11
1.Forwardtractionpedal4.Tiltsteeringlever
2.Reversetractionpedal5.Indicatorslot
3.Mow/transportslide6.Angleindicator
TractionPedals
Pressthetractionforwardpedal(Figure11)tomoveforward.
Presstractionreversepedal(Figure11)tomovebackwardor
toassistinstoppingwhenmovingforward.Also,allowthe
pedaltomoveormoveittotheneutralpositiontostopthe
machine.
Mow/TransportSlide
Usingyourheel,movethemow/transportslide(Figure11)
tothelefttotransportandtotherighttomow.Thecutting
unitswillonlyoperateinthemowposition.
Important:Themowspeedissetatthefactoryto6
MPH(9.7km/h).Itcanbeincreasedordecreasedby
adjustingthespeedstopscrew(Figure12).
Figure12
1.Speedstopscrew
14

TiltSteeringLever
Pullthetiltsteeringlever(Figure11)backtotiltthesteering
wheeltothedesiredposition.Thenpushtheleverforward
totighten.
IndicatorSlot
Theslotintheoperatorplatform(Figure11)indicateswhen
thecuttingunitsareinthecenterposition.
AngleIndicator
Models30839,30843&30807only
Theangleindicator(Figure11)indicatesthesidehillangleof
themachineindegrees.
IgnitionSwitch
Theignitionswitch(Figure13),usedtostart,stop,and
preheattheengine,hasthreepositions:Off,On/Preheat,and
Start.RotatethekeytotheOn/Preheatpositionuntilthe
glowplugindicatorlightgoesout(approximately7seconds);
thenrotatethekeytotheStartpositiontoengagethestarter
motor.Releasethekeywhentheenginestarts.Thekeywill
moveautomaticallytotheOn/Runposition.Toshutthe
engineoff,rotatethekeytotheOffposition.Removethekey
fromtheswitchtopreventaccidentalstarting.
Figure13
1.Throttle7.Cuttingunitdriveswitch
2.Hourmeter8.Cuttingunitshiftlever
3.Temperaturelight9.Ignitionswitch
4.Oilpressurelight10.Parkingbrake
5.Glowplugindicatorlight11.Liftleverlock
6.Alternatorlight
Throttle
Movethethrottle(Figure13)forwardtoincreasetheengine
speedandrearwardtodecreasetheenginespeed.
CuttingUnitDriveSwitch
Thecuttingunitdriveswitch(Figure13)hastwopositions:
EngageandDisengage.Therockerswitchoperatesasolenoid
valveonthevalvebanktodrivethecuttingunits.
HourMeter
Thehourmeter(Figure13)indicatesthetotalhoursof
machineoperation.Thehourmeterstartstofunction
wheneverthekeyswitchisOn.
CuttingUnitShiftLever
Tolowerthecuttingunitstotheground,movethecutting
unitshiftlever(Figure13)forward.Thecuttingunitswillnot
dropunlesstheengineisrunning.Toraisethecuttingunits,
pulltheshiftleverrearwardtotheRaiseposition.
Movethelevertotherightorlefttomovethecuttingunits
inthesamedirection.Thisshouldonlybedonewhenthe
cuttingunitsareraisedoriftheyareonthegroundandthe
machineismoving.
Note:Theleverdoesnothavetobeheldintheforward
positionwhilethecuttingunitsarelowered.
DANGER
Shiftingthecuttingunitsdownhilldecreases
machinestability.Thiscouldcausearollover,
whichmayresultinpersonalinjuryordeath.
Shiftthecuttingunitsuphillwhileonasidehill.
EngineCoolantTemperatureWarning
Light
Thetemperaturewarninglight(Figure13)glowsiftheengine
coolanttemperatureishigh.Ifthetractionunitisnotstopped
andthecoolanttemperaturerisesanother10°F,theengine
willkill.
OilPressureWarningLight
Theoilpressurewarninglight(Figure13)glowsiftheengine
oilpressuredropsbelowasafelevel.
AlternatorLight
Thealternatorlight(Figure13)shouldbeoffwhentheengine
isrunning.Ifitison,thechargingsystemshouldbechecked
andrepairedasnecessary.
GlowPlugIndicator
Theglowplugindicatorlight(Figure13)willglowwhenthe
glowplugsareoperating.
15

ParkingBrake
Whenevertheengineisshutoff,engagetheparkingbrake
(Figure13)topreventaccidentalmovementofthemachine.
Toengagetheparkingbrake,pulluponthelever.Theengine
willstopifyoupressthetractionpedalwiththeparkingbrake
engaged.
LiftLeverLock
Movetheliftleverlock(Figure13)rearwardtopreventthe
cuttingunitsfromdropping.
FuelGauge
Thefuelgauge(Figure14)registerstheamountoffuelin
thetank.
Figure14
1.Foreandaftlever2.Fuelgauge
ForeandAftSeatAdjustments
Movethelever(Figure14)onthesideoftheseatoutward,
slidetheseattothedesiredposition,andreleasethelever
tolocktheseatintoposition.
Specications
Note:Specicationsanddesignaresubjecttochange
withoutnotice.
OverallWidth-68inchwidth
ofcut
71.8inches(182cm)
OverallWidth-72inchwidth
ofcut
75.8inches(193cm)
Length116inches(295cm)
HeighttotopofROPS70.8inches(180cm)
WheelBase58.5inches(149cm)
TrackWidth57inches(145cm)
GroundClearance6inches(15.3cm)
Weightwithcuttingunits2,124lb(963kg)
Attachments/Accessories
AselectionofToroapprovedattachmentsandaccessoriesare
availableforusewiththemachinetoenhanceandexpand
itscapabilities.ContactyourAuthorizedServiceDealeror
Distributororgotowww .Toro.comforalistofallapproved
attachmentsandaccessories.
16

Operation
Note:Determinetheleftandrightsidesofthemachine
fromthenormaloperatingposition.
CheckingtheEngineOilLevel
ServiceInterval:Beforeeachuseordaily
Theengineisshippedwithoilinthecrankcase;however,the
oillevelmustbecheckedbeforeandaftertheengineisrst
started.
Crankcasecapacityisapproximately4qt(2.8l)withthelter.
Usehigh-qualityengineoilthatmeetsthefollowing
specications:
•APIClassicationLevelRequired:CH-4,CI-4orhigher.
•Preferredoil:SAE15W-40(above0ºF(-17ºC))
•Alternateoil:SAE10W-30or5W-30(alltemperatures)
Note:ToroPremiumEngineoilisavailablefromyour
distributorineither15W-40or10W-30viscosity.Seethe
partscatalogforpartnumbers.
Note:Thebesttimetochecktheengineoiliswhenthe
engineiscoolbeforeithasbeenstartedfortheday.Ifithas
alreadybeenrun,allowtheoiltodrainbackdowntothe
sumpforatleast10minutesbeforechecking.Iftheoillevel
isatorbelowthe“add”markonthedipstick,addoiltobring
theoilleveltothe“full”mark.DONOTOVERFILL.If
theoillevelisbetweenthe“full”and“add”marks,nooil
additionisrequired.
1.Positionthemachineonalevelsurface.
2.Removethedipstick(Figure15)andwipeitwitha
cleanrag.
Figure15
1.Dipstick
3.Pushthedipstickdownintothedipsticktubeandmake
surethatitisseatedfully.Pullthedipstickoutand
checktheoillevel.
4.Iftheoillevelislow ,removetheoilllcap(Figure16)
andgraduallyaddsmallquantitiesofoil,checkingthe
levelfrequently,untilthelevelreachestheFullmark
onthedipstick.
Figure16
1.Oilllcap
5.Installtheoilllcapandclosethehood.
FillingtheFuelTank
Useonlyclean,freshdieselfuelorbiodieselfuelswithlow
(<500ppm)orultralow(<15ppm)sulfurcontent.The
minimumcetaneratingshouldbe40.Purchasefuelin
quantitiesthatcanbeusedwithin180daystoensurefuel
freshness.
Thefueltankcapacityisapproximately11gallons(42liters).
Usesummergradedieselfuel(No.2–D)attemperatures
above20degreesF(–7degreesC)andwintergrade(No.
1-DorNo.1-D/2-Dblend)belowthattemperature.Useof
wintergradefuelatlowertemperaturesprovideslowerash
pointandcoldowcharacteristicswhichwilleasestarting
andreducefuellterplugging.
Useofsummergradefuelabove20degreesF(-7degreesC)
willcontributetowardlongerfuelpumplifeandincreased
powercomparedtowintergradefuel.
BiodieselReady
Thismachinecanalsouseabiodieselblendedfuelofup
toB20(20%biodiesel,80%petrodiesel).Thepetrodiesel
portionshouldbeloworultralowsulfur.Observethe
followingprecautions:
•Thebiodieselportionofthefuelmustmeetspecication
ASTMD6751orEN14214.
•TheblendedfuelcompositionshouldmeetASTMD975
orEN590.
•Paintedsurfacesmaybedamagedbybiodieselblends.
•UseB5(biodieselcontentof5%)orlesserblendsincold
weather
•Monitorseals,hoses,gasketsincontactwithfuelasthey
maybedegradedovertime.
•Fuellterpluggingmaybeexpectedforatimeafter
convertingtobiodieselblends.
•Contactyourdistributorifyouwishformoreinformation
onbiodiesel
1.Cleantheareaaroundthefueltankcap(Figure17).
2.Removethefueltankcap.
17

3.Fillthetanktothebottomofthellerneck.Donot
overll.Installthecap.
4.Topreventarehazard,wipeupanyfuelthatmay
havespilled.
Figure17
1.Fueltankcap
DANGER
Undercertainconditions,dieselfuelandfuel
vaporsarehighlyammableandexplosive.A
reorexplosionfromfuelcanburnyouand
othersandcancausepropertydamage.
•Useafunnelandllthefueltankoutdoors,
inanopenarea,whentheengineisoffand
iscold.Wipeupanyfuelthatspills.
•Donotllthefueltankcompletelyfull.
Addfueltothefueltankuntilthelevelis
1/4to1/2inch(6to13mm)belowthe
bottomofthellerneck.Thisemptyspace
inthetankallowsthefueltoexpand.
•Neversmokewhenhandlingfuel,andstay
awayfromanopenameorwherefuel
fumesmaybeignitedbyaspark.
•Storefuelinaclean,safety-approved
containerandkeepthecapinplace.
CheckingtheCoolingSystem
ServiceInterval:Beforeeachuseordaily
Cleandebrisoffoftheradiatorandoilcoolerdaily(Figure18).
Cleantheradiatorhourlyifconditionsareextremelydusty
anddirty;refertoCleaningtheEngineCoolingSystem.
Figure18
1.Accesspanel3.Oilcooler
2.Radiator
Thecoolingsystemislledwitha50/50solutionofwater
andpermanentethyleneglycolanti-freeze.Checkthecoolant
levelatthebeginningofeachdaybeforestartingtheengine.
Thecapacityofthecoolingsystemisapproximately6qt(5.7
l).
CAUTION
Iftheenginehasbeenrunning,thepressurized,hot
coolantcanescapeandcauseburns.
•Donotopentheradiatorcapwhentheengine
isrunning.
•Usearagwhenopeningtheradiatorcap,and
openthecapslowlytoallowsteamtoescape.
1.Checkthecoolantlevelintheexpansiontank
(Figure19).Withacoldengine,thecoolantlevel
shouldbeapproximatelymidwaybetweenthemarks
onthesideofthetank.
2.Ifthecoolantlevelislow,removetheexpansiontank
capandreplenishthesystem.Donotoverll.
3.Installtheexpansiontankcap.
18

Figure19
1.Expansiontank
CheckingtheHydraulic
System
ServiceInterval:Beforeeachuseordaily—Checkthe
hydraulicuidlevel.
Themachinesreservoirislledatthefactorywith
approximately3.5U.S.gallons(13.2l)ofhighquality
hydraulicuid.Checkthelevelofthehydraulicuid
beforetheengineisrststartedanddailythereafter.
TherecommendedreplacementuidisToroPremiumAll
SeasonHydraulicFluid(Availablein5gallonpailsor55
gallondrums.SeepartscatalogorTorodistributorforpart
numbers.)
Alternateuids:IftheTorouidisnotavailable,other
uidsmaybeusedprovidedtheymeetallthefollowing
materialpropertiesandindustryspecications.Torodoes
notrecommendtheuseofsyntheticuid.Consultwithyour
lubricantdistributortoidentifyasatisfactoryproductNote:
Torowillnotassumeresponsibilityfordamagecausedby
impropersubstitutions,souseonlyproductsfromreputable
manufacturerswhowillstandbehindtheirrecommendation.
HighViscosityIndex/LowPourPointAnti-wearHydraulic
Fluid,ISOVG46
MaterialProperties:
Viscosity,ASTMD445cSt@40°C44to48
cSt@100°C7.9to8.5
ViscosityIndexASTM
D2270
140to160
PourPoint,ASTMD97-34°Fto-49°F
IndustrySpecications:
VickersI-286-S(QualityLevel),VickersM-2950-S
(QualityLevel),DenisonHF-0
Note:Manyhydraulicuidsarealmostcolorless,makingit
difculttospotleaks.Areddyeadditiveforthehydraulic
systemoilisavailablein2/3oz.(20ml)bottles.Onebottleis
sufcientfor4-6U.S.gallons(15-221)ofhydraulicoil.Order
partno.44-2500fromyourauthorizedTorodistributor.
BiodegradableHydraulicFluid—Mobil224H
ToroBiodegradableHydraulicFluid(Availablein5
gallonpailsor55gallondrums.SeepartscatalogorToro
distributorforpartnumbers.)
Alternateuid:MobilEAL224H
Thisisvegetable–oilbasedbiodegradableoiltestedand
approvedbyToroforthismodel.Thisuidisnotas
resistanttohightemperaturesasstandarduid,soinstall
anoilcoolerifrequiredbytheoperatormanualand
followrecommendeduidchangeintervalswiththisuid.
Contaminationbymineral–basedhydraulicuidswillchange
thebiodegradabilityandtoxicityofthisoil.Whenchanging
fromstandarduidtothebiodegradabletype,becertainto
followtheapprovedushingprocedure.Contactyourlocal
ToroDistributorfordetails.
1.Positionthemachineonalevelsurface,lowerthe
cuttingunits,andstoptheengine.
2.Cleantheareaaroundthellerneckandcapofthe
hydraulictank(Figure20).Removethecap.
Figure20
1.Hydraulictankcap
3.Removethedipstickfromthellerneckandwipeit
withacleanrag.Insertthedipstickintothellerneck;
thenremoveitandchecktheuidlevel.Theuidlevel
shouldbewithin1/4inch(6mm)ofthemarkonthe
dipstick.
4.Ifthelevelislow ,addtheappropriateuidtoraisethe
leveltothefullmark.
5.Installthedipstickandcapontothellerneck.
CheckingtheTirePressure
ServiceInterval:Beforeeachuseordaily
Thetiresareover-inatedforshipping.Therefore,release
someoftheairtoreducethepressure.Thecorrectair
pressureinthetiresis14to18psi(97to124kPa).
Note:Maintaintherecommendedpressureinalltiresto
ensureagoodqualityofcutandpropermachineperformance.
19

DANGER
Lowtirepressuredecreasesmachinesidehill
stability.Thiscouldcausearollover,whichmay
resultinpersonalinjuryordeath.
Donotunder-inatethetires.
TorquingtheWheelNuts
ServiceInterval:Afterthersthour
Aftertherst10hours
Every200hours
Torquethewheelnutsto45to65ft-lb(61to88N-m).
WARNING
Failuretomaintainpropertorqueofthewheelnuts
couldresultinpersonalinjury.
StartingandStoppingthe
Engine
Youmayneedtobleedthefuelsystemifanyofthefollowing
situationshaveoccurred(refertoBleedingtheFuelSystem):
•Initialstartupofanewengine
•Theenginehasceasedrunningduetolackoffuel.
•Maintenancehasbeenperformeduponthefuelsystem
components;i.e.lterreplaced,etc.
StartingtheEngine
1.Besurethattheparkingbrakeissetandthecutting
unitdriveswitchisintheDisengageposition.
2.Removeyourfootfromthetractionpedalandmake
surethatthepedalisintheneutralposition.
3.Movethethrottlelevertothe1/2throttleposition.
4.Insertthekeyintotheswitchandrotateittothe
On/Preheatpositionuntiltheglowplugindicatorlight
goesout(approximately7seconds);thenrotatethe
keytotheStartpositiontoengagethestartermotor.
Releasethekeywhentheenginestarts.Thekeywill
moveautomaticallytotheOn/Runposition.
Important:Topreventoverheatingofthestarter
motor,donotengagethestarterlongerthan15
seconds.After10secondsofcontinuouscranking,
wait60secondsbeforeengagingthestartermotor
again.
5.Whentheengineisstartedforthersttimeorafteran
overhauloftheengine,operatethemachineinforward
andreverseforonetotwominutes.Alsooperatethe
liftleverandcuttingunitdriveswitchtobesureof
properoperationofallparts.
Turnthesteeringwheeltotheleftandrighttocheck
steeringresponse;thenshuttheengineoffandcheck
foroilleaks,looseparts,andanyothernoticeable
malfunctions.
CAUTION
Stoptheengineandwaitforallmovingparts
tostopbeforecheckingforoilleaks,loose
parts,andothermalfunctions.
StoppingtheEngine
MovethethrottlecontroltotheIdleposition,movethe
cuttingunitdriveswitchtoDisengage,androtatethestarter
keytoOff.Removethekeyfromtheswitchtoprevent
accidentalstarting.
BleedingtheFuelSystem
1.Parkthemachineonalevelsurface.Makesurethatthe
fueltankisatleasthalffull.
2.Unlatchandraisethehood.
DANGER
Undercertainconditions,dieselfuelandfuel
vaporsarehighlyammableandexplosive.A
reorexplosionfromfuelcanburnyouand
othersandcancausepropertydamage.
•Useafunnelandllthefueltankoutdoors,
inanopenarea,whentheengineisoffand
iscold.Wipeupanyfuelthatspills.
•Donotllthefueltankcompletelyfull.
Addfueltothefueltankuntilthelevelis
1/4to1/2inch(6to13mm)belowthe
bottomofthellerneck.Thisemptyspace
inthetankallowsthefueltoexpand.
•Neversmokewhenhandlingfuel,andstay
awayfromanopenameorwherefuel
fumesmaybeignitedbyaspark.
•Storefuelinaclean,safety-approved
containerandkeepthecapinplace.
3.Opentheairbleedscrewonthefuelinjectionpump
(Figure21).
20