Page 1

FormNo.3382-138RevA
Groundsmaster
®
4300-DTraction
Unit
ModelNo.30859N—SerialNo.314000001andUp
Registeratwww.T oro.com. 
OriginalInstructions(EN)
*3382-138*A
Page 2

WARNING
CALIFORNIA
Proposition65Warning
whichsignalsahazardthatmaycauseseriousinjuryordeath 
ifyoudonotfollowtherecommendedprecautions.
Thisproductcontainsachemicalorchemicals
knowntotheStateofCaliforniatocausecancer,
birthdefects,orreproductiveharm.
Dieselengineexhaustandsomeofits 
constituentsareknowntotheStateof
Californiatocausecancer,birthdefects,
andotherreproductiveharm.
Important:Thisengineisnotequippedwithaspark 
arrestermufer.ItisaviolationofCaliforniaPublic 
ResourceCodeSection4442touseoroperatetheengine 
onanyforest-covered,brush-covered,orgrass-covered 
land.Otherstatesorfederalareasmayhavesimilarlaws.
Introduction
Thismachineisaride-on,rotary-bladelawnmowerintended 
tobeusedbyprofessional,hiredoperatorsincommercial 
applications.Itisprimarilydesignedforcuttinggrass 
onwell-maintainedlawnsinparks,sportselds,andon 
commercialgrounds.Itisnotdesignedforcuttingbrush, 
mowinggrassandothergrowthalongsidehighways,orfor 
agriculturaluses.
Figure1
1.Safetyalertsymbol
Thismanualuses2otherwordstohighlightinformation. 
Importantcallsattentiontospecialmechanicalinformation 
andNoteemphasizesgeneralinformationworthyofspecial 
attention.
Readthisinformationcarefullytolearnhowtooperateand 
maintainyourproductproperlyandtoavoidinjuryand 
productdamage.Youareresponsibleforoperatingthe 
productproperlyandsafely.
YoumaycontactT orodirectlyatwww .Toro.comforproduct 
andaccessoryinformation,helpndingadealer,ortoregister 
yourproduct.
Wheneveryouneedservice,genuineT oroparts,oradditional 
information,contactanAuthorizedServiceDealerorToro 
CustomerServiceandhavethemodelandserialnumbersof 
yourproductready.Themodelandserialnumbersareona 
platemountedontheleftsideoftheframeunderthefoot 
rest.Writethenumbersinthespaceprovided.
ModelNo.
SerialNo.
Thismanualidentiespotentialhazardsandhassafety 
messagesidentiedbythesafetyalertsymbol(Figure1),
©2014—TheToro®Company 
8111LyndaleAvenueSouth 
Bloomington,MN55420
Contactusatwww.Toro.com.
2
PrintedintheUSA.
AllRightsReserved
Page 3

Contents
Introduction..................................................................2
Safety...........................................................................4
SafeOperatingPractices...........................................4
ToroRidingMowerSafety........................................6
SafetyandInstructionalDecals.................................7
Setup...........................................................................10
1AdjustingtheTirePressure....................................10
2AdjustingtheStepHeight.....................................10
3AdjustingtheControlArmPosition........................11
4RemovetheShippingBlocksandPins.....................11
5InstallingRearWeights.........................................12
ProductOverview.........................................................14
Controls...............................................................14
Specications........................................................17
Attachments/Accessories........................................17
Operation....................................................................18
CheckingtheEngineOilLevel.................................18
CheckingtheCoolingSystem...................................19
AddingFuel...........................................................19
CheckingtheHydraulicFluid...................................20
ChecktheTorqueoftheWheelNuts.........................21
BleedingtheFuelSystem.........................................21
StartingandStoppingtheEngine..............................22
PushingorTowingtheMachine................................22
JackingPoints........................................................23
TieDowns............................................................23
UnderstandingtheDiagnosticLight..........................24
DiagnosticAceDisplay...........................................24
CheckingtheInterlockSwitches...............................24
HydraulicValveSolenoidFunctions..........................26
OperatingTips......................................................26
Maintenance.................................................................27
RecommendedMaintenanceSchedule(s)......................27
DailyMaintenanceChecklist....................................28
ServiceIntervalChart.............................................29
Lubrication...............................................................29
GreasingtheBearingsandBushings..........................29
EngineMaintenance..................................................31
ServicingtheAirCleaner.........................................31
ServicingtheEngineOilandFilter............................31
AdjustingtheThrottle.............................................32
FuelSystemMaintenance...........................................32
DrainingtheFuelTank...........................................32
CheckingtheFuelLinesandConnections..................32
ServicingtheWaterSeparator..................................32
FuelPick-upTubeScreen........................................33
BleedingAirfromtheFuelInjectors..........................33
ElectricalSystemMaintenance....................................34
ServicingtheBattery...............................................34
Fuses....................................................................34
DriveSystemMaintenance.........................................35
AdjustingtheTractionDriveforNeutral....................35
AdjustingtheRearWheelToe-in..............................35
CoolingSystemMaintenance......................................36
RemovingDebrisfromtheCoolingSystem................36
BrakeMaintenance....................................................37
AdjustingtheServiceBrakes....................................37
AdjustingtheParkingBrake....................................37
BeltMaintenance......................................................38
TensioningtheAlternatorBelt.................................38
HydraulicSystemMaintenance....................................38
ChangingtheHydraulicFluid...................................38
ReplacingtheHydraulicFilters.................................39
CheckingtheHydraulicLinesandHoses....................39
ChangingtheCounterbalanceSettings.......................40
HydraulicSystemTestPorts.....................................40
Storage........................................................................41
PreparingtheTractionUnit.....................................41
PreparingtheEngine..............................................41
3
Page 4

Safety
ThismachinemeetsorexceedsISOstandard5395:1990 
andANSIB71.4-2004specicationsineffectattimeof 
production,whenequippedwithrearweight.Referto 
thesectioninthismanualonInstallingRearWeight.
Improperuseormaintenancebytheoperatoror 
ownercanresultininjury.Toreducethepotential 
forinjury,complywiththesesafetyinstructionsand 
alwayspayattentiontothesafetyalertsymbol,which 
meansCaution,Warning,orDanger—personalsafety 
instruction.Failuretocomplywiththeinstructionmay 
resultinpersonalinjuryordeath.
SafeOperatingPractices
ThefollowinginstructionsareadaptedfromtheCEN 
standardEN836:1997,ISOstandard5395:1990,andANSI 
B71.4-2012.
Preparation
•Whilemowing,alwayswearsubstantialfootwear,long
trousers,hardhat,safetyglasses,andearprotection.Long 
hair,looseclothing,orjewelrymaygettangledinmoving 
parts.Donotoperatetheequipmentwhenbarefootor 
wearingopensandals.
•Thoroughlyinspecttheareawheretheequipmentisto
beusedandremoveallobjectswhichmaybethrownby 
themachine.
•Replacefaultysilencers/mufers.
•Evaluatetheterraintodeterminewhataccessoriesand
attachmentsareneededtoproperlyandsafelyperform 
thejob.Onlyuseaccessoriesandattachmentsapproved 
bythemanufacturer.
•Checkthattheoperator'spresencecontrols,safety
switchesandshieldsareattachedandfunctioning 
properly.Donotoperateunlesstheyarefunctioning 
properly.
Training
•Readtheoperator'smanualandothertrainingmaterial
carefully.Befamiliarwiththecontrols,safetysigns,and 
theproperuseoftheequipment.
•Neverallowchildrenorpeopleunfamiliarwiththese
instructionstouseorservicethemower.Local 
regulationsmayrestricttheageoftheoperator.
•Nevermowwhilepeople,especiallychildren,orpetsare
nearby.
•Keepinmindthattheoperatororuserisresponsiblefor
accidentsorhazardsoccurringtootherpeopleortheir 
property.
•Donotcarrypassengers.
•Alldriversandmechanicsshouldseekandobtain
professionalandpracticalinstruction.Theowneris 
responsiblefortrainingtheusers.Suchinstructionshould 
emphasize:
–theneedforcareandconcentrationwhenworking
withride-onmachines;
–controlofaride-onmachineslidingonaslopewill
notberegainedbytheapplicationofthebrake.The 
mainreasonsforlossofcontrolare:
◊insufcientwheelgrip;
◊beingdriventoofast;
◊inadequatebraking;
◊thetypeofmachineisunsuitableforitstask;
◊lackofawarenessoftheeffectofground
conditions,especiallyslopes;
◊incorrecthitchingandloaddistribution.
•Theowner/usercanpreventandisresponsiblefor
accidentsorinjuriesoccurringtohimselforherself,other 
people,orproperty.
SafeHandlingofFuels
•Toavoidpersonalinjuryorpropertydamage,use
extremecareinhandlinggasoline.Gasolineisextremely 
ammableandthevaporsareexplosive.
•Extinguishallcigarettes,cigars,pipes,andothersources
ofignition.
•Useonlyanapprovedfuelcontainer.
•Neverremovefuelcaporaddfuelwiththeengine
running.
•Allowenginetocoolbeforerefueling.
•Neverrefuelthemachineindoors.
•Neverstorethemachineorfuelcontainerwherethereis
anopename,spark,orpilotlightsuchasonawater 
heateroronotherappliances.
•Neverllcontainersinsideavehicleoronatruckor
trailerbedwithaplasticliner.Alwaysplacecontainerson 
thegroundawayfromyourvehiclebeforelling.
•Removeequipmentfromthetruckortrailerandrefuelit
ontheground.Ifthisisnotpossible,thenrefuelsuch 
equipmentwithaportablecontainer,ratherthanfroma 
fueldispensernozzle.
•Keepthenozzleincontactwiththerimofthefueltank
orcontaineropeningatalltimesuntilfuelingiscomplete. 
Donotuseanozzlelockopendevice.
•Iffuelisspilledonclothing,changeclothingimmediately.
•Neveroverllfueltank.Replacefuelcapandtighten
securely.
Operation
•Donotoperatetheengineinaconnedspacewhere
dangerouscarbonmonoxidefumescancollect.
•Mowonlyindaylightoringoodarticiallight.
4
Page 5

•Beforeattemptingtostarttheengine,disengageallblade
attachmentclutches,shiftintoneutral,andengagethe 
parkingbrake.
•Rememberthereisnosuchthingasasafeslope.Travel
ongrassslopesrequiresparticularcare.Toguardagainst 
overturning:
–donotstoporstartsuddenlywhengoingupor
downhill;
–machinespeedsshouldbekeptlowonslopesand
duringtightturns;
–stayalertforhumpsandhollowsandotherhidden
hazards; 
–Donotturnsharply.Usecarewhenreversing. 
–Usecounterweight(s)orwheelweightsasidentied
intheoperator'smanual.
•Stayalertforholesintheterrainandotherhiddenhazards.
•Watchoutfortrafcwhencrossingornearroadways.
•Stopthebladesrotatingbeforecrossingsurfacesother
thangrass.
•Whenusinganyattachments,neverdirectdischargeof
materialtowardbystandersnorallowanyonenearthe 
machinewhileinoperation.
•Neveroperatethemachinewithdamagedguards,shields,
orwithoutsafetyprotectivedevicesinplace.Besureall 
interlocksareattached,adjustedproperly ,andfunctioning 
properly.
•Donotchangetheenginegovernorsettingsorover-speed
theengine.Operatingtheengineatexcessivespeedmay 
increasethehazardofpersonalinjury.
•Beforeleavingtheoperator'sposition:
–stoponlevelground; 
–disengagethepowertake-offandlowerthe
attachments; 
–changeintoneutralandsettheparkingbrake; 
–stoptheengineandremovethekey.
•Disengagedrivetoattachmentswhentransportingornot
inuse.
•Stoptheengineanddisengagedrivetoattachment:
–beforerefuelling; 
–beforeremovingthegrasscatcher/catchers; 
–beforemakingheightadjustmentunlessadjustment
canbemadefromtheoperator'sposition. 
–beforeclearingblockages; 
–beforechecking,cleaningorworkingonthemower; 
–afterstrikingaforeignobjectorifanabnormal
vibrationoccurs.Inspectthemowerfordamage
andmakerepairsbeforerestartingandoperatingthe
equipment.
•Reducethethrottlesettingduringenginerun-outand,if
theengineisprovidedwithashut-offvalve,turnthefuel 
offattheconclusionofmowing.
•Keephandsandfeetawayfromthecuttingdecks.
•Lookbehindanddownbeforebackinguptobesureof
aclearpath.
•Slowdownandusecautionwhenmakingturnsand
crossingroadsandsidewalks.
•Donotoperatethemowerundertheinuenceofalcohol
ordrugs.
•Lightningcancausesevereinjuryordeath.Iflightning
isseenorthunderisheardinthearea,donotoperate 
themachine;seekshelter.
•Usecarewhenloadingorunloadingthemachineintoa
trailerortruck.
•Usecarewhenapproachingblindcorners,shrubs,trees,
orotherobjectsthatmayobscurevision.
MaintenanceandStorage
•Keepallnuts,boltsandscrewstighttobesurethe
equipmentisinsafeworkingcondition.
•Neverstoretheequipmentwithfuelinthetankinsidea
buildingwherefumesmayreachanopenameorspark.
•Allowtheenginetocoolbeforestoringinanyenclosure.
•Toreducetherehazard,keeptheengine,
silencer/mufer,batterycompartmentandfuelstorage 
areafreeofgrass,leaves,orexcessivegrease.
•Keepallpartsingoodworkingconditionandallhardware
andhydraulicttingstightened.Replaceallwornor 
damagedpartsanddecals.
•Ifthefueltankhastobedrained,dothisoutdoors.
•Becarefulduringadjustmentofthemachinetoprevent
entrapmentofthengersbetweenmovingbladesand 
xedpartsofthemachine.
•Disengagedrives,lowerthecuttingdecks,setparking
brake,stopengineandremovekeyfromignition.Wait 
forallmovementtostopbeforeadjusting,cleaningor 
repairing.
•Cleangrassanddebrisfromcuttingdecks,drives,
silencers/mufers,andenginetohelppreventres.Clean 
upoilorfuelspillage.
•Usejackstandstosupportcomponentswhenrequired.
•Carefullyreleasepressurefromcomponentswithstored
energy.
•Disconnectbatterybeforemakinganyrepairs.Disconnect
thenegativeterminalrstandthepositivelast.Reconnect 
positiverstandnegativelast.
•Keephandsandfeetawayfrommovingparts.Ifpossible,
donotmakeadjustmentswiththeenginerunning.
•Chargebatteriesinanopenwellventilatedarea,away
fromsparkandames.Unplugchargerbeforeconnecting 
ordisconnectingfrombattery.W earprotectiveclothing 
anduseinsulatedtools.
Hauling
•Usecarewhenloadingorunloadingthemachineintoa
trailerortruck.
5
Page 6

•Usefullwidthrampsforloadingmachineintotraileror
truck.
•Tiethemachinedownsecurelyusingstraps,chains,cable,
orropes.Bothfrontandrearstrapsshouldbedirected 
downandoutwardfromthemachine
ToroRidingMowerSafety
ThefollowinglistcontainssafetyinformationspecictoToro 
productsorothersafetyinformationthatyoumustknowthat 
isnotincludedintheCEN,ISO,orANSIstandard.
Thisproductiscapableofamputatinghandsandfeetand 
throwingobjects.Alwaysfollowallsafetyinstructionsto 
avoidseriousinjuryordeath.
Useofthisproductforpurposesotherthanitsintendeduse 
couldprovedangeroustouserandbystanders.
WARNING
Engineexhaustcontainscarbonmonoxide,which 
isanodorless,deadlypoisonthatcankillyou.
Donotrunengineindoorsorinanenclosedarea.
•Knowhowtostoptheenginequickly .
•Donotoperatethemachinewhilewearingtennisshoes
orsneakers.
•Wearingsafetyshoesandlongpantsisadvisableand
requiredbysomelocalordinancesandinsurance 
regulations.
•Handlefuelcarefully.Wipeupanyspills.
•Checkthesafetyinterlockswitchesdailyforproper
operation.Ifaswitchshouldfail,replacetheswitch 
beforeoperatingthemachine.
•Beforestartingtheengine,sitontheseat.
•Usingthemachinedemandsattention.Topreventloss
ofcontrol:
–Donotdriveclosetosandtraps,ditches,creeks,or
otherhazards.
•Iftheenginestallsorlosesheadwayandcannotmakeit
tothetopofaslope,donotturnthemachinearound. 
Alwaysbackslowly,straightdowntheslope.
•Whenapersonorpetappearsunexpectedlyinornearthe
mowingarea,stopmowing.Carelessoperation,combined 
withterrainangles,ricochets,orimproperlypositioned 
guardscanleadtothrownobjectinjuries.Donotresume 
mowinguntiltheareaiscleared.
MaintenanceandStorage
•Makesureallhydrauliclineconnectorsaretightandall
hydraulichosesandlinesareingoodconditionbefore 
applyingpressuretothesystem.
•Keepyourbodyandhandsawayfrompinholeleaksor
nozzlesthatejecthydraulicuidunderhighpressure. 
Usepaperorcardboard,notyourhands,tosearchfor 
leaks.Hydraulicuidescapingunderpressurecanhave 
sufcientforcetopenetratetheskinandcauseserious 
injury.Seekimmediatemedicalattentionifuidis 
injectedintoskin.
•Beforedisconnectingorperforminganyworkonthe
hydraulicsystem,allpressureinthesystemmustbe 
relievedbystoppingtheengineandloweringthecutting 
decksandattachmentstotheground.
•Checkallfuellinesfortightnessandwearonaregular
basis.Tightenorrepairthemasneeded.
•Iftheenginemustberunningtoperformamaintenance
adjustment,keephands,feet,clothing,andanypartsof 
thebodyawayfromthecuttingdecks,attachments,and 
anymovingparts.Keepeveryoneaway.
•Toensuresafetyandaccuracy,haveanAuthorizedToro
Distributorcheckthemaximumenginespeedwitha 
tachometer.
•Ifmajorrepairsareeverneededorifassistanceisdesired,
contactanAuthorizedToroDistributor.
•UseonlyToro-approvedattachmentsandreplacement
parts.Thewarrantymaybevoidedifusedwith 
unapprovedattachments.
–Reducespeedwhenmakingsharpturns.Avoid
suddenstopsandstarts.
–Whennearorcrossingroads,alwaysyieldthe
right-of-way.
–Applytheservicebrakeswhengoingdownhillto
keepforwardspeedslowandtomaintaincontrolof
themachine.
•Raisethecuttingdeckswhendrivingfromoneworkarea
toanother.
•Donottouchtheengine,silencer/mufer,orexhaust
pipewhiletheengineisrunningorsoonafterithas 
stoppedbecausetheseareascouldbehotenoughtocause 
burns.
6
Page 7

SafetyandInstructionalDecals
Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyareaofpotential 
danger.Replaceanydecalthatisdamagedorlost.
93-7272
1.Cutting/dismembermenthazard;fan—stayawayfromoving 
parts.
110-8869
117–2718
1.Warning—readtheOperator'sManual,donotoperatethis 
machineunlessyouaretrained.
2.Thrownobjecthazard—keepbystandersasafedistance 
fromthemachine.
3.Tippinghazard—slowmachinebeforeturning,donotturn 
athighspeeds;lowerthecuttingunitwhendrivingdown 
slopes;usearolloverprotectionsystemandweartheseat 
belt.AlwayswearaseatbeltwhenaROPSisinplace.
4.Warning—donotparkthemachineonslopes;engagethe 
parkingbrake,lowerthecuttingdecks,stoptheengineand 
removetheignitionkeybeforeleavingthemachine.
5.Warning—readtheOperator'sManual,donottowthe 
machine.
110-8921
1.Tractionunitspeed
2.Slow
3.Fast
117–0169
1.ReadtheOperator'sManual.
2.Powerpoint—10amp
3.Headlights—10amp
4.Power—10amp
5.Enginestart—15amp
6.Optionalairrideseatsuspension—10amp
7.EnginecomputermanagementC—10amp
8.EnginecomputermanagementB—10amp
9.EnginecomputermanagementA—10amp
93–6689
1.Danger—donotsitontheplasticshroud.
7
Page 8

93-6681
1.Cutting/dismemberment—hazard,fan-stayawayfrom 
movingparts.
117–2385
1.ReadtheOperators 
Manual.
2.Engine—start4.Engine—stop
3.Engine—preheat
106-6754
1.Warning—donottouchthehotsurface.
2.Cutting/dismembermenthazard,fanandentanglement 
hazard,belt—stayawayfrommovingparts.
110-0986
1.Pressthebrakepedalandparkingbrakepedaltosetthe 
parkingbrake.
2.Pressthebrakepedaltoapplythebrake.
3.Pressthetractionpedaltomovethemachineforward.
4.Reelenabledmode
5.Transportmode
117–0170
1.Headlights
2.Engage
3.Powertake-off(PTO)
4.Disengage9.Raisecuttingunits
5.Fast
6.Continuousvariable 
throttlesetting
7.Slow
8.Lowercuttingunits
10.ReadtheOperator's
Manual.
112-5019
1.Enginecoolantunder
2.Explosionhazard—read
8
pressure.
theOperator'sManual.
106-6755
3.Warning—donottouchthe 
hotsurface.
4.Warning—readthe
Operator'sManual.
Page 9

1.ReadtheOperator'sManual.
BatterySymbols
Someorallofthesesymbolsareonyourbattery
117-0168
1.Explosionhazard
2.Nore,opename,or 
smoking.
3.Causticliquid/chemical 
burnhazard
4.Weareyeprotection9.Flusheyesimmediately
5.ReadtheOperator's
Manual.
6.Keepbystandersasafe
7.Weareyeprotection;
8.Batteryacidcancause
10.Containslead;donot
distancefromthebattery.
explosivegasescan 
causeblindnessandother 
injuries
blindnessorsevereburns.
withwaterandgetmedical 
helpfast.
discard.
9
Page 10

Setup
LooseParts
Usethechartbelowtoverifythatallpartshavebeenshipped.
ProcedureDescription
1 
2 
3 
4
5
Nopartsrequired
Nopartsrequired
Nopartsrequired
Nopartsrequired
Rearweights(quantityvarieswith 
conguration).
MediaandAdditionalParts
Description
Operator'sManual 
EngineOperator'sManual 
PartsCatalog 
OperatorTrainingMaterial
Note:Determinetheleftandrightsidesofthemachine 
fromthenormaloperatingposition.
Qty.
Qty.
–
–
–
–
Varies
1 
1 
1 
1
Reviewbeforeoperatingmachine
Adjustthetirepressure.
Adjustthestepheight.
Adjustthecontrolarmposition.
Removeshippingblocksandpins
Installrearweights(orderfromyour 
ToroDistributor).
Use
Use
1
AdjustingtheTirePressure
NoPartsRequired
Procedure
Thetiresareover-inatedforshipping.Therefore,release 
someoftheairtoreducethepressure.Correctairpressurein 
thefrontandreartiresis83to103kPa(12to15psi).
Important:Maintainevenpressureinalltirestoensure 
uniformcontactwiththeturf.
2
AdjustingtheStepHeight
NoPartsRequired
Procedure
Theheightofthestepscanbeadjustedfortheoperators 
comfort.
1.Removethe2boltsandnutssecuringthestepbrackets 
tothetractionunitframe(Figure2)
10
Page 11

Figure2
1.Step2.Stepbrackets
2.Raiseorlowerthesteptothedesiredheightand 
re-securethebracketstotheframewiththe2bolts 
andnuts.
3.Repeattheprocedureontheotherstep.
3
AdjustingtheControlArm 
Position
NoPartsRequired
Procedure
Thecontrolarmpositioncanbeadjustedfortheoperators 
comfort.
1.Loosenthe2boltssecuringthecontrolarmtothe 
retainingbracket(Figure3).
Figure3
1.Controlarm3.Bolts(2)
2.Retainingbrackets
2.Rotatethecontrolarmtothedesiredpositionand 
tightenthe2bolts.
4
RemovetheShippingBlocks 
andPins
NoPartsRequired
Procedure
1.Removeanddiscardtheshippingblocksfromthe 
cuttingdecks.
2.Removeanddiscardtheshippingpinsfromthecutting 
decksuspensionarms.Theshippingpinsstabilizethe 
cuttingdecksduringshippingandmustberemoved 
beforeoperation.
11
Page 12

5
InstallingRearWeights
Partsneededforthisprocedure:
Varies
Rearweights(quantityvarieswithconguration).
Procedure
TheGroundsmaster4300–DTractionUnitcomplieswithISOstandard5395:1990andANSIB71.4-2004Standardswhen 
equippedwithrearweightsand/or90lbofcalciumchlorideballastisaddedtorearwheels.Usethefollowingchartsto 
determinethecombinationsofweightsrequiredforyourconguration.OrderpartsfromyourlocalAuthorizedToro 
Distributor.
WeightP/N110-8985-03
Conguration
BaseUnit6
WithRecycler
Kit
WithSunshade
orCooltops
With4Post
ROPS&
Sunshadeor
Cooltops
Numberofweightstomeet
ANSI(US)standards
90lbcalciumchloride*N/AN/A
90lbcalciumchloride*
90lbcalciumchloride*
*Installtubesinsidethereartiresbeforeaddingcalciumchloride.
Fasteners(2eachrequired)
forweights
3231–34CarriageBolt
104–8301Nut
3231–7CarriageBolt
104–8301Nut
3231–7CarriageBolt
104–8301Nut
WeightLocation
3ontopofbumperand3
underbumper
1ontopofbumperand3
underbumper
1ontopofbumperand3
underbumper
Important:Alwaysinstalltubesinsidethereartiresbeforecalciumchlorideisinstalled.Ifapunctureoccursina 
tirewithcalciumchloride,removethemachinefromtheturfareaasquicklyaspossible.Topreventpossibledamage 
totheturf,immediatelysoaktheaffectedareawithwater.
Usethefollowingproceduretomounttheappropriateamountofweight(seeweightcharts)tothetoporbottomofthe 
rearbumperasshowninFigure4.
12
Page 13

Figure4
1.Tractionmanifold5.Weight(s)
2.Spacers6.Carriagebolt
3.Bolts7.Nut
4.Washers
•Removethe3bolts,washers,andspacerssecuringthetractionmanifoldtothebottomoftherearbumper(Figure4a).
•Positiontheappropriateamountofweightonthetopand/orbottomoftherearbumper.
•Mounttheweight(s)andthetractionmanifoldtothebumperwiththe3bolts,washersandspacerspreviouslyremoved
(Figure4b).
Note:Donotusethespacerswheninstallingmorethantwoweightsunderthebumper(Figure4c).
•Securetheouteredgesoftheweight(s)tothebumperwith2carriageboltsandnuts(Figure4c).
13
Page 14

ProductOverview
Controls
SeatAdjustingKnobs
Theseatadjustinglever(Figure5)allowsyoutoadjustthe 
seatforeandaft.Theweightadjustingknobadjuststheseat 
fortheoperator'sweight.Theweightgaugeindicateswhen 
theseatisadjustedtotheweightoftheoperator.Theheight 
adjustingknobadjuststheseatfortheoperator'sheight.
Figure6
1.Tractionpedal4.Brakepedal
2.Mowspeedlimiter5.Parkingbrake
3.Spacers
6.Tiltsteeringpedal
Figure5
1.Weightgauge3.Heightadjustingknob
2.Weightadjustingknob
4.Adjustinglever(foreand 
aft)
TractionPedal
Thetractionpedal(Figure6)controlstheforwardandreverse 
operation.Pressthetopofthepedaltomoveforwardandthe 
bottomtomoverearward.Groundspeeddependsonhow 
faryoupressthepedal.Fornoload,maximumgroundspeed, 
fullypressthepedalwhilethethrottleisintheFastposition.
Tostop,reducefootpressureonthetractionpedalandallow 
ittoreturntothecenterposition.
MowSpeedLimiter
Whenthemowspeedlimiter(Figure6)isippedupitwill 
controlthemowspeedandallowthecuttingdeckstobe 
engaged.Eachspaceradjuststhemowingspeedby½mile 
perhour.Themorespacersyouhave,onthetopofthebolt 
thesloweryouwillgo.Fortransport,ipbackthemowspeed 
limiterandyouwillhavemaximumtransportspeed.
BrakePedal
Pressthebrakepedal(Figure6)tostopthemachine.
ParkingBrake
Toengagetheparkingbrake,(Figure6)pushdownonthe 
brakepedalandpressthetopforwardtolatch.Toreleasethe 
parkingbrake,pressthebrakepedaluntiltheparkingbrake 
latchretracts.
TiltSteeringPedal
Totiltthesteeringwheeltowardsyou,pressthefootpedal 
(Figure6)down,andpullthesteeringtowertowardyouto 
themostcomfortablepositionandthenreleasethepedal.
ThrottleControl
Movethethrottlecontrol(Figure7)forwardtoincreasethe 
enginespeedandrearwardtodecreasespeed.
14
Page 15

G003956
1
2
3
4
5
6
7
8
9
10
Figure7
1.Throttlecontrol6.Enginecoolant
2.Enable/disableswitch
3.Glowplugindicatorlight8.Chargeindicator
4.Enginecoolant 
temperaturewarning 
light
5.Diagnosticlight
7.Engineoilpressure
9.Keyswitch
10.Lowermow/raisecontrol
temperaturegauge
warninglight
lever
GlowPlugIndicatorLight
Thislight(Figure7)illuminateswhentheglowplugsare 
preheating.
EngineOilPressureWarningLight
Thislight(Figure7)indicatesdangerouslylowengineoil 
pressure.
ChargeIndicator
Thechargeindicator(Figure7)illuminateswhenthesystem 
chargingcircuitmalfunctions.
Enable/DisableSwitch
Usetheenable/disableswitch(Figure7)inconjunctionwith 
thelowermow/raisecontrollevertooperatethemowers. 
Themowerscannotbeloweredwhenthemow/transport 
leverisinthetransportposition.
HourMeter
Thehourmeter(Figure8)showsthetotalhoursthatthe 
machinehasbeenoperated.
KeySwitch
Thekeyswitch(Figure7)hasthreepositions:Off, 
On/Preheat,andStart.
EngineCoolantTemperatureWarning 
Light
Thislight(Figure7)illuminatesandthemowersshutdown 
whentheenginecoolantreachesahightemperature.Ifthe 
enginetemperaturecontinuestorise,theenginewillshut 
down.
EngineCoolantTemperatureGauge
Duringnormaloperatingconditionsthegauge(Figure7) 
shouldbeinthegreenrange.Checkthecoolingsystemifthe 
gaugegoestotheyelloworredrange.
DiagnosticLight
Itwillilluminateshouldasystemfaultberecognized.
1.Hourmeter
HydraulicFilterRestrictionIndicator
Withtheenginerunningatnormaloperatingtemperature, 
viewtheindicator(Figure9),itshouldbeintheGreenzone. 
WhentheindicatorisintheRedzone,changethehydraulic 
lters.
Figure8
LowerMow/RaiseControlLever
Thislever(Figure7)raisesandlowersthecuttingdecks 
andalsostartsandstopsthemowerswhenthemowersare 
enabledinthemowmode.
15
Page 16

1.Hydrauliclterrestrictionindicator
Figure9
FuelGauge
Thefuelgauge(Figure10)showstheamountoffuelinthe 
tank.
Figure10
Figure11
1.Headlightswitch
PowerPoint
Thepowerpointisa12voltpowersupplyforelectronic 
devices(Figure12).
1.Fueltankcap
2.Fuelgauge
HeadlightSwitch
Pivottheswitchdownwardtoturnontheheadlights(Figure
11).
Figure12
1.Powerpoint
16
Page 17

Specications
Note:Specicationsanddesignaresubjecttochange
withoutnotice.
TransportWidth
Widthofcut229cm(90inches)
Length
Height
Fueltankcapacity
Transportspeed
Mowingspeed
Netweight* 
*Withcuttingdecksanduids
226cm(89inches)
320cm(126inches)
218cm(86inches)
51liters(13.5USgallons)
0–16kph(0–10mph)
0–13kph(0–8mph)
1,412kg(3,1 14lb)
Attachments/Accessories
AselectionofToroapprovedattachmentsandaccessoriesis 
availableforusewiththemachinetoenhanceandexpand 
itscapabilities.ContactyourAuthorizedServiceDealeror 
Distributororgotowww .Toro.comforalistofallapproved 
attachmentsandaccessories.
17
Page 18

Operation
Note:Determinetheleftandrightsidesofthemachine
fromthenormaloperatingposition.
CAUTION
Ifyouleavethekeyintheignitionswitch,someone 
couldaccidentlystarttheengineandseriously 
injureyouorotherbystanders.
Lowerthecuttingdeckstotheground,setthe 
parkingbrakeandremovethekeyfromtheignition 
switchbeforeservicingormakingadjustmentsto 
themachine.
CheckingtheEngineOilLevel
Theengineisshippedwithoilinthecrankcase;however,the 
oillevelmustbecheckedbeforeandaftertheengineisrst 
started.
Crankcasecapacityisapproximately5.2liters(5.5quarts) 
withthelter.
Usehigh-qualityengineoilthatmeetsthefollowing 
specications:
•APIClassicationLevelRequired:CH-4,CI-4orhigher
•Preferredoil:SAE15W-40(above0degreesF)
•Alternateoil:SAE10W-30or5W-30(alltemperatures)
ToroPremiumEngineoilisavailablefromyourdistributorin 
either15W -40or10W-30viscosity .
1.Parkthemachineonalevelsurface,stoptheengine, 
settheparkingbrakeandremovethekeyfromthe 
ignitionswitch.
2.Openthehood.
3.Removethedipstick,wipeitclean,andinstallit(Figure
13).
Figure13
1.Dipstick
4.Removedipstickandcheckoillevelondipstick.
TheoillevelshouldbeuptotheFullmark.
5.IftheoillevelisbelowtheFullmark,removethell 
Figure14)andaddoiluntillevelreachestheFull
cap( 
markondipstick.
1.Oilllcap
Donotoverll.
Important:Besuretokeeptheengineoillevel 
betweentheupperandlowerlimitsontheoil 
gauge.Enginefailuremayoccurasaresultofover 
llingorunderllingtheengineoil.
6.Installtheoilllcapandclosethehood.
18
Figure14
Page 19

CheckingtheCoolingSystem
AddingFuel
Cleandebrisoffofthescreen,oilcooler,andfrontofthe 
radiatordailyandmoreoftenifconditionsareextremely 
dustyanddirty.RefertothesectiononRemovingDebris 
fromtheCoolingSysteminMaintenance.
Thecoolingsystemislledwitha50/50solutionofwater 
andpermanentethyleneglycolantifreeze.Checkthelevelof 
coolantintheexpansiontankatthebeginningofeachday 
beforestartingtheengine.Thecapacityofthecoolingsystem 
is9.5liters(10quarts).
CAUTION
Iftheenginehasbeenrunning,thepressurized,hot 
coolantcanescapeandcauseburns.
•Donotopentheradiatorcapwhentheengine 
isrunning.
•Usearagwhenopeningtheradiatorcap,and 
openthecapslowlytoallowsteamtoescape.
1.Checkthelevelofcoolantintheexpansiontank 
(Figure15).
Thecoolantlevelshouldbebetweenthemarksonthe 
sideofthetank.
Useonlyclean,freshdieselfuelorbiodieselfuelswithlow 
(<500ppm)orultralow(<15ppm)sulfurcontent.The 
minimumcetaneratingshouldbe40.Purchasefuelin 
quantitiesthatcanbeusedwithin180daystoensurefuel 
freshness.
Fueltankcapacity:51liters(13.5gallons)
Usesummergradedieselfuel(No.2-D)attemperatures 
above-7°C(20°F)andwintergrade(No.1-DorNo. 
1-D/2-Dblend)belowthattemperature.Useofwintergrade 
fuelatlowertemperaturesprovideslowerashpointand 
coldowcharacteristicswhichwilleasestartingandreduce 
fuellterplugging.
Useofsummergradefuelabove-7°C(20°F)willcontribute 
towardlongerfuelpumplifeandincreasedpowercompared 
towintergradefuel.
Important:Donotusekeroseneorgasolineinsteadof 
dieselfuel.Failuretoobservethiscautionwilldamage 
theengine.
WARNING
Fuelisharmfulorfatalifswallowed.Long-term 
exposuretovaporscancauseseriousinjuryand 
illness.
Figure15
1.Expansiontank
2.Ifthecoolantlevelislow,removetheexpansiontank 
capandreplenishthesystem.Donotoverll.
•Avoidprolongedbreathingofvapors.
•Keepfaceawayfromnozzleandgastankor 
conditioneropening.
•Keepfuelawayfromeyesandskin.
BiodieselReady
Thismachinecanalsouseabiodieselblendedfuelofup 
toB20(20%biodiesel,80%petrodiesel).Thepetrodiesel 
portionshouldbeloworultralowsulfur.Observethe 
followingprecautions:
•Thebiodieselportionofthefuelmustmeetspecication
ASTMD6751orEN14214.
•TheblendedfuelcompositionshouldmeetASTMD975
orEN590.
•Paintedsurfacesmaybedamagedbybiodieselblends.
•UseB5(biodieselcontentof5%)orlesserblendsincold
weather.
•Monitorseals,hoses,gasketsincontactwithfuelasthey
maybedegradedovertime.
3.Installtheexpansiontankcap.
•Fuellterpluggingmaybeexpectedforatimeafter
convertingtobiodieselblended.
•Contactyourdistributorifyouwishformoreinformation
onbiodiesel.
19
Page 20

DANGER
Incertainconditions,fuelisextremelyammable 
andhighlyexplosive.Areorexplosionfromfuel 
canburnyouandothersandcandamageproperty.
•Fillthefueltankoutdoors,inanopenarea,when 
theengineiscold.Wipeupanyfuelthatspills.
•Neverllthefueltankinsideanenclosedtrailer.
•Neversmokewhenhandlingfuel,andstayaway 
fromanopenameorwherefuelfumesmaybe 
ignitedbyaspark.
•Storefuelinanapprovedcontainerandkeepit 
outofthereachofchildren.Neverbuymore 
thana180-daysupplyoffuel.
•Donotoperatewithoutentireexhaustsystemin 
placeandinproperworkingcondition.
DANGER
Incertainconditionsduringfueling,static 
electricitycanbereleasedcausingasparkwhich 
canignitethefuelvapors.Areorexplosionfrom 
fuelcanburnyouandothersandcandamage 
property.
•Alwaysplacefuelcontainersonthegroundaway 
fromyourvehiclebeforelling.
Figure16
1.Fueltankcap2.Fuelgauge
4.Fillthetankuntilthelevelistothebottomoftheller 
neckwithdieselfuel.
5.Installfueltankcaptightlyafterllingtank.
Note:Ifpossible,llthefueltankaftereachuse.This 
willminimizepossiblebuildupofcondensationinside 
thefueltank.
•Donotllfuelcontainersinsideavehicleoron 
atruckortrailerbedbecauseinteriorcarpets 
orplastictruckbedlinersmayinsulatethe 
containerandslowthelossofanystaticcharge.
•Whenpractical,removeequipmentfromthe 
truckortrailerandrefueltheequipmentwithits 
wheelsontheground.
•Ifthisisnotpossible,thenrefuelsuch 
equipmentonatruckortrailerfromaportable 
container,ratherthanfromafueldispenser 
nozzle.
•Ifafueldispensernozzlemustbeused,keepthe 
nozzleincontactwiththerimofthefueltank 
orcontaineropeningatalltimesuntilfuelingis 
complete.
1.Parkthemachineonalevelsurface.
2.Usingacleanrag,cleanareaaroundfueltankcap.
3.Removecapfromthefueltank(
Figure16).
CheckingtheHydraulicFluid
Themachinesreservoirislledatthefactorywith 
approximately37.8liters(10U .S.gallons)ofhighquality 
hydraulicuid.Checkthelevelofthehydraulicuid 
beforetheengineisrststartedanddailythereafter.The 
recommendedreplacementuidisasfollows:
ToroPremiumAllSeasonHydraulicFluid(Availablein5 
gallonpailsor55gallondrums.SeepartscatalogorT oro 
distributorforpartnumbers.)
Alternateuids:IftheTorouidisnotavailable,other 
uidsmaybeusedprovidedtheymeetallthefollowing 
materialpropertiesandindustryspecications.W edonot 
recommendtheuseofsyntheticuid.Consultwithyour 
lubricantdistributortoidentifyasatisfactoryproductNote: 
Torowillnotassumeresponsibilityfordamagecausedby 
impropersubstitutions,souseonlyproductsfromreputable 
manufacturerswhowillstandbehindtheirrecommendation.
HighViscosityIndex/LowPourPointAnti-wearHydraulic 
Fluid,ISOVG46
MaterialProperties:
Viscosity,ASTMD445cSt@40°C44to48
ViscosityIndexASTM 
D2270 
PourPoint,ASTMD97-34°Fto-49°F
cSt@100°C7.9to8.5 
140to160
20
Page 21

IndustrySpecications:
VickersI-286-S(QualityLevel),VickersM-2950-S 
(QualityLevel),DenisonHF-0
ChecktheTorqueoftheWheel 
Nuts
Important:TheISOVG46Multigradeuidhasbeen
foundtoofferoptimalperformanceinawiderangeof 
temperatureconditions.Foroperationinconsistently 
highambienttemperatures,65°F(18°C)to120°F 
(49°C),ISOVG68hydraulicuidmayofferimproved 
performance.
PremiumBiodegradableHydraulicFluid-MobilEAL 
EnviroSyn46H
Important:MobilEALEnviroSyn46Histheonly 
syntheticbiodegradableuidapprovedbyT oro.This 
uidiscompatiblewiththeelastomersusedinToro 
hydraulicsystemsandissuitableforawide-range 
oftemperatureconditions.Thisuidiscompatible 
withconventionalmineraloils,butformaximum 
biodegradabilityandperformancethehydraulicsystem 
shouldbethoroughlyushedofconventionaluid.The 
oilisavailablein19liters(5gallon)containersor55 
gallondrumsfromyourMobilDistributor.
Important:Manyhydraulicuidsarealmostcolorless, 
makingitdifculttospotleaks.Areddyeadditive 
forthehydraulicsystemoilisavailablein20ml(2/3 
oz.)bottles.Onebottleissufcientfor15-22liters(4-6 
gallons)ofhydraulicoil.Orderpartno.44-2500from 
yourauthorizedT orodistributor.
1.Positionmachineonalevelsurface,lowerthecutting 
decksandstoptheengine.
2.Cleanareaaroundllerneckandcapofhydraulictank 
(
Figure17).
TorquethewheelnutstoTorquethewheellugnutsto94to 
122N-m(70to90ft-lb)after1-4hoursofoperationand 
againafter10hoursofoperation.T orqueevery250hours 
thereafter.
WARNING
Failuretomaintainpropertorqueofthewheelnuts 
couldresultinpersonalinjury.
BleedingtheFuelSystem
Youmustbleedthefuelsystembeforestartingtheengineif 
anyofthefollowingsituationshaveoccurred:
•Initialstartupofanewmachine.
•Enginehasceasedrunningduetolackoffuel.
•Maintenancehasbeenperformeduponfuelsystem
components;i.e.,lterreplaced,separatorserviced,etc.
DANGER
Undercertainconditions,dieselfuelandfuel 
vaporsarehighlyammableandexplosive.Are 
orexplosionfromfuelcanburnyouandothersand 
cancausepropertydamage.
•Useafunnelandllthefueltankoutdoors,in 
anopenarea,whentheengineisoffandiscold. 
Wipeupanyfuelthatspills.
Figure17
1.Hydraulictankcap
3.Removecap/dipstickfromllerneckandwipeitwith 
acleanrag.Insertdipstickintollerneck;thenremove 
itandchecklevelofuid.Fluidlevelshouldbewithin 
operatingrangeondipstick.Donotoverll.
4.Iflevelislow,addappropriateuidtoraiselevelto 
fullmark.
5.Installcap/dipstickontollerneck.
•Donotllthefueltankcompletelyfull.Add 
fueltothefueltankuntilthelevelis6to13mm 
(1/4to1/2inch)belowthebottomoftheller 
neck.Thisemptyspaceinthetankallowsthe 
fueltoexpand.
•Neversmokewhenhandlingfuel,andstayaway 
fromanopenameorwherefuelfumesmaybe 
ignitedbyaspark.
•Storefuelinaclean,safety-approvedcontainer 
andkeepthecapinplace.
1.Parkthemachineonalevelsurfaceandensurethatthe 
fueltankisatleasthalffull.
2.Openthehood.
3.Opentheairbleedscrewonthefuelinjectionpump 
(
Figure18)witha12mmwrench.
21
Page 22

Figure18
1.Bleedscrew
4.TurnthekeyintheignitionswitchtotheOnposition. 
Theelectricfuelpumpwillbeginoperation,thereby 
forcingairoutaroundtheairbleedscrew .Leavethe 
keyintheOnpositionuntilasolidstreamoffuelows 
outaroundthescrew .
5.TightenthescrewandturnthekeytotheOffposition.
Note:Normally,theengineshouldstartaftertheabove 
bleedingproceduresarefollowed.However,ifenginedoes 
notstart,airmaybetrappedbetweeninjectionpumpand 
injectors;refertoBleedingAirfromtheInjectors.
StartingandStoppingthe
preheatingisrequired,turnkeytotheOffpositionand 
thentotheOn/Preheatposition.Repeatthisprocess 
asrequired.
4.Runtheengineatlowidlespeeduntilitwarmsup.
StoppingtheEngine
1.MoveallcontrolstoNeutral,settheparkingbrake, 
movethethrottletothelowidlepositionandallowthe 
enginetoreachlowidlespeed.
Important:Allowtheenginetoidlefor5 
minutesbeforeshuttingitoffafterafullload 
operation.Failuretodosomayleadtotroubleon 
aturbo-chargedengine.
2.TurnthekeytotheOffpositionandremoveitfrom 
theswitch.
PushingorTowingthe 
Machine
Inanemergency,themachinecanbemovedbyactuatingthe 
bypassvalveinthevariabledisplacementhydraulicpumpand 
pushingortowingthemachine.
Important:Donotpushortowthemachinefasterthan 
3-4.8km/h(2-3mph)becauseinternaltransmission 
damagemayoccur.Thebypassvalvemustbeopen 
wheneverthemachineispushedortowed.
1.Thebypassvalveislocatedontheleftsideofthe 
hydrostat(Figure19).Rotatethebolt1–1/2turnsto 
openandallowoiltobypassinternally.Becauseuid 
isbypassed,themachinecanbemovedslowlywithout 
damagingthetransmission.
Engine
Important:Y oumustbleedthefuelsystembefore
startingtheengineifyouarestartingtheengineforthe 
rsttime,theenginehasstoppedduetolackoffuel,or 
youhaveperformedmaintenanceonthefuelsystem; 
refertoBleedingtheFuelSystem.
StartingtheEngine
1.Sitontheseat,keepyourfootoffofthetractionpedal 
sothatitisinNeutral,engagetheparkingbrake,set 
thethrottletotheFastposition,andensurethatthe 
Enable/DisableswitchisintheDisableposition.
2.TurntheignitionswitchtotheOn/Preheatposition.
Anautomatictimerwillcontroltheglowplugpreheat 
for6seconds.
3.Afterpreheatingtheglowplugs,turnkeytotheStart 
position.
Cranktheenginefornolongerthan15seconds. 
Releasethekeywhentheenginestarts.Ifadditional
Figure19
1.Bypassvalve
2.Closethebypassvalvebeforestartingtheengine. 
However,donotexceed7-11N-m(5-8ft.-lb)torque 
toclosethevalve.
22
Page 23

Important:Runningtheenginewiththebypass 
valveopenwillcausethetransmissiontooverheat.
JackingPoints
Note:Usejackstandstosupportthemachinewhenrequired.
•Front—rectangularpad,undertheaxletube,insideeach
fronttire(
Figure20).
Figure21
1.Fronttiedown
•Rear—eachsideofthemachineontherearframe(Figure
22).
Figure20
1.Frontjackingpoint
•Rear—rectangularaxletubeontherearaxle.
TieDowns
•Front—theholeintherectangularpad,undertheaxle
tube,insideeachfronttire(Figure21).
Figure22
1.Reartiedown
23
Page 24

UnderstandingtheDiagnostic
DiagnosticAceDisplay
Light
Themachineisequippedwithadiagnosticlightwhich 
indicatesiftheelectroniccontrollersensesanelectronic 
malfunction.Thediagnosticlightislocatedonthecontrol 
arm(Figure23).Whentheelectroniccontrollerisfunctioning 
correctlyandthekeyswitchismovedtotheOnposition, 
thecontrollerdiagnosticlightwillturnONfor3seconds 
andturnOFFtoindicatethelightisworkingproperly.If 
themachinekillsthelightwillturnonsteadyuntilthekey 
positionischanged.Thelightwillblinkifthecontroller 
detectsamalfunctionintheelectricalsystem.Thelightwill 
stopblinkingandautomaticallyresetwhenthekeyswitchis 
turnedtotheOffpositiononcethefaulthasbeenresolved.
Themachineisequippedwithanelectroniccontrollerwhich 
controlsmostmachinefunctions.Thecontrollerdetermines 
whatfunctionisrequiredforvariousinputswitches(i.e.seat 
switch,keyswitch,etc.)andturnsontheoutputstoactuate 
solenoidsorrelaysfortherequestedmachinefunction.
Fortheelectroniccontrollertocontrolthemachineas 
desired,eachoftheinputswitches,outputsolenoids,and 
relaysmustbeconnectedandfunctioningproperly.
UsetheDiagnosticACEdisplaytohelpverifyandcorrect 
electricalfunctionsofthemachine.
CheckingtheInterlock 
Switches
Thepurposeoftheinterlockswitchesistopreventthe 
enginefromcrankingorstartingunlessthetractionpedalis 
intheNeutralposition,theEnable/Disableswitchisinthe 
Disableposition,andtheLowerMow/Raisecontrolisinthe 
Neutralposition.Inaddition,theengineshouldstopwhen 
thetractionpedalispressedwithoperatoroffoftheseatorif 
theparkingbrakeisleftengaged.
Figure23
1.Diagnosticlight
Whenthecontrollerdiagnosticlightblinks,oneofthe 
followingproblemshasbeendetectedbythecontroller:
•Oneoftheoutputshasbeenshorted.
•Oneoftheoutputsisopencircuited.
Usingthediagnosticdisplay,determinewhichoutputis 
malfunctioning;refertoCheckingtheInterlockSwitches.
Ifthediagnosticlightisnotilluminatedwhenthekeyswitchis 
intheOnposition,thisindicatesthattheelectroniccontroller 
isnotoperating.Possiblecausesareasfollows:
•Loop-backisnotconnected.
•Thelightisburnedout.
•Fusesareblown.
•Itisnotfunctioningcorrectly.
CAUTION
Ifsafetyinterlockswitchesaredisconnectedor 
damagedthemachinecouldoperateunexpectedly 
causingpersonalinjury.
•Donottamperwiththeinterlockswitches.
•Checktheoperationoftheinterlockswitches 
dailyandreplaceanydamagedswitchesbefore 
operatingthemachine.
VerifyingtheInterlockSwitchFunction
1.Parkthemachineonalevelsurface,lowerthecutting 
decks,stoptheengine,andengagetheparkingbrake.
2.Removetheaccesspanelfromthesideofthecontrol 
arm.
3.Locatethewireharnessandconnectorsnearthe 
controller(Figure24).
Checktheelectricalconnections,inputfuses,anddiagnostic 
lightbulbtodeterminethemalfunction.Ensurethatthe 
loop-backconnectorissecuredtothewireharnessconnector.
24
Page 25

willblinkonandoffwhencorrespondingswitchis 
closed.Repeatthisforallswitchesthatyoucanchange 
byhand.
9.IfaswitchisclosedandtheappropriateLEDdoesnot 
turnon,checkallwiringandconnectionstotheswitch 
and/orchecktheswitcheswithanohmmeter.Replace 
anydefectiveswitchesandrepairanydefectivewiring.
Note:TheDiagnosticACEalsohastheabilitytodetect 
whichoutputsolenoidsorrelaysareturnedon.Thisisa 
quickwaytodetermineifamachinemalfunctioniselectrical 
orhydraulic.
Figure24
1.Wireharnessandconnectors
4.Carefullyunplugloopbackconnectorfromharness 
connector.
5.ConnecttheDiagnosticACEdisplayconnectortothe 
harnessconnector(
Figure25).
Note:Makesurecorrectoverlaydecalispositioned 
onDiagnosticACEdisplay.
VerifyingOutputFunction
1.Parkthemachineonalevelsurface,lowerthecutting 
decks,stoptheengine,andengagetheparkingbrake.
2.Removetheaccesspanelfromthesideofthecontrol 
arm.
3.Locatewireharnessandconnectorsnearcontroller.
4.Carefullyunplugloopbackconnectorfromharness 
connector.
5.ConnecttheDiagnosticACEconnectortotheharness 
connector.
Note:Makesurecorrectoverlaydecalispositioned 
onDiagnosticACE.
6.TurnthekeyswitchtotheONposition,butdonot 
startmachine.
Note:Theredtextontheoverlaydecalreferstoinput 
switchesandthegreentextreferstooutputs.
7.The“outputsdisplayed”LED,onlowerrightcolumn 
ofDiagnosticACE,shouldbeilluminated.Ifthe 
“inputsdisplayed”LEDisilluminated,pressthetoggle 
button,ontheDiagnosticACE,tochangetheLEDto 
“outputsdisplayed”.
Figure25
1.DiagnosticACE
6.TurnthekeyswitchtotheOnposition,butdonot 
startthemachine.
Note:Theredtextontheoverlaydecalreferstoinput 
switchesandthegreentextreferstooutputs.
7.The“inputsdisplayed”LED,onthelowerright 
columnoftheDiagnosticACE,shouldbeilluminated. 
Ifthe“outputsdisplayed”LEDisilluminated,press 
thetogglebutton,onDiagnosticACE,tochangeLED 
to“inputsdisplayed”.
TheDiagnosticACEwillilluminatetheLEDassociated 
witheachoftheinputswhenthatinputswitchisclosed.
8.Individually,changeeachoftheswitchesfromopen 
toclosed(i.e.,sitonseat,engagetractionpedal,etc.), 
andnotethattheappropriateLEDonDiagnosticACE
Note:Itmaybenecessarytotogglebetween“inputs 
displayed”and“outputsdisplayed”severaltimestodo 
thefollowingstep.Totogglebackandforth,press 
thetogglebuttononce.Thismaybedoneasoftenas 
required.Donotholdthebutton.
8.Sitontheseatandattempttooperatethedesired 
functionofthemachine.Theappropriateoutput 
LEDsshouldilluminatetoindicatethattheECMis 
turningonthatfunction.
Note:IfthecorrectoutputLEDsdonotilluminate,verify 
thattherequiredinputswitchesareinthenecessarypositions 
toallowthatfunctiontooccur.V erifycorrectswitchfunction.
IftheoutputLEDsareonasspecied,butthemachinedoes 
notfunctionproperly,thisindicatesanon-electricalproblem. 
Repairasnecessary.
Note:Ifeachoutputswitchisinthecorrectpositionand 
functioningcorrectly,buttheoutputLEDsarenotcorrectly 
illuminated,thisindicatesanECMproblem.Ifthisoccurs, 
contactyourToroDistributorforassistance.
25
Page 26

Important:TheDiagnosticACEdisplaymustnotbe 
leftconnectedtothemachine.Itisnotdesignedto 
withstandtheenvironmentofthemachine'severyday 
use.WhendoneusingtheDiagnosticACE,disconnect 
itfromthemachineandconnectloop-backconnector 
toharnessconnector.Themachinewillnotoperate 
withoutloopbackconnectorinstalledontheharness. 
StoretheDiagnosticACEindry,securelocationinthe 
shop,notonthemachine.
MowwhentheGrassisDry
Moweitherinthelatemorningtoavoidthedew ,whichcauses 
grassclumping,orinlateafternoontoavoidthedamage 
thatcanbecausedbydirectsunlightonthesensitive,freshly 
mowedgrass.
SelecttheProperHeight-of-CutSetting 
toSuitConditions
HydraulicValveSolenoid 
Functions
Usethelistbelowtoidentifyanddescribethedifferent 
functionsofthesolenoidsinthehydraulicmanifold.Each 
solenoidmustbeenergizedtoallowfunctiontooccur.
Solenoid
PRV2Frontmowercircuit
PRV1Rearmowercircuit
PRV
S1
S2
Lift/lowercuttingdecks
Lowercuttingdecks
Lowercuttingdecks
Function
OperatingTips
Familiarization
Beforemowinggrass,practiceoperatingthemachineinan 
openarea.Startandstoptheengine.Operateinforward 
andreverse.Lowerandraisethecuttingdecksandengage 
anddisengagethemowers.Whenyoufeelfamiliarwiththe 
machine,practiceoperatingupanddownslopesatdifferent 
speeds.
WarningSystem
Ifawarninglightcomesonduringoperation,stopthe 
machineimmediatelyandcorrecttheproblembefore 
continuingoperation.Seriousdamagecouldoccurifyou 
operatethemachinewithamalfunction.
Removeapproximatelyoneinchornomorethan1/3ofthe 
grassbladewhencutting.Inexceptionallylushanddense 
grassyoumayhavetoraisetheheight–of–cutsetting.
AlwaysStartMowingwithSharpBlades
Asharpbladecutscleanlyandwithouttearingorshredding 
thegrassbladeslikeadullblade.Tearingandshredding 
causesthegrasstoturnbrownattheedgeswhichimpairs 
growthandincreasessusceptibilitytodiseases.Makesure 
bladeisingoodconditionandafullsailispresent.
CheckConditionofDeck
Makesurethatthecuttingchambersareingoodcondition. 
Straightenanybendsinthechambercomponentstoensure 
thecorrectbladetip/chamberclearance.
AfterOperating
Toensureoptimumperformance,cleantheundersideof 
mowerhousing.Ifyouallowresiduetobuildupinmower 
housing,cuttingperformancewilldecrease.
Transport
MovetheEnable/DisableswitchtotheDisablepositionand 
raisethecuttingdeckstothetransportposition.Movethe 
Mow/Transportlevertothetransportposition.Becareful 
whendrivingbetweenobjectssoyoudonotaccidentally 
damagethemachineorcuttingdecks.Useextracarewhen 
operatingthemachineonslopes.Driveslowlyandavoid 
sharpturnsonslopestopreventrollovers.Lowerthecutting 
deckswhengoingdownhillforsteeringcontrol.
Mowing
StarttheengineandmovethethrottletotheFastposition. 
MovetheEnable/DisableswitchtotheEnablepositionand 
usetheLowerMow/Raiselevertocontrolthecuttingdecks. 
Tomoveforwardandcutgrass,pressthetractionpedal 
forward.
Note:Allowtheenginetoidlefor5minutesbeforeshutting 
itoffafterafullloadoperation.Failuretodosomayleadto 
turbo-chargertrouble.
26
Page 27

Maintenance
Note:Determinetheleftandrightsidesofthemachinefromthenormaloperatingposition.
RecommendedMaintenanceSchedule(s)
MaintenanceService
Interval
Afterthersthour
Aftertherst8hours
Aftertherst10hours
Aftertherst50hours
Beforeeachuseordaily
Every50hours
Every100hours
Every150hours
MaintenanceProcedure
•T orquethewheellugnutsto94to122N-m(70to90ft-lb).
•Checktheconditionandtensionofthealternatorbelt.
•T orquethewheellugnutsto94to122N-m(70to90ft-lb).
•Changetheengineoilandlter.
•ChecktheengineRPM(idleandfullthrottle).
•Checktheengineoillevel.
•Checkthecoolingsystem.
•Checkthehydraulicuidlevel.
•Checktheoperationoftheinterlockswitches.
•Removedebrisfromthescreen,oilcoolers,andradiator(morefrequentlyindirty 
operatingconditions).
•Checkthehydrauliclinesandhosesforleaks,kinkedlines,loosemountingsupports, 
wear,loosettings,weatherdeterioration,andchemicaldeterioration.
•Greasethebearingsandbushings.(Greasethemimmediatelyaftereverywashing 
regardlessoftheintervallisted.)
•Checktheconditionofandcleanthebattery.
•Checkthebatterycableconnections.
•Inspectthecoolingsystemhoses.
•Checktheconditionandtensionofthealternatorbelt.
•Changetheengineoilandlter.
Every200hours
Every250hours
Every400hours
Every800hours
Beforestorage
Every2years
•Drainmoisturefromthefuelandhydraulicuidtanks.
•T orquethewheellugnutsto94to122N-m(70to90ft-lb).
•Servicetheaircleaner.(Servicetheaircleanerearlieriftheaircleanerindicator 
showsred.Serviceitmorefrequentlyinextremelydirtyordustyconditions.)
•Checkthefuellinesandconnectionsfordeterioration,damage,orlooseconnections.
•Replacethefuelltercanister .
•ChecktheengineRPM(idleandfullthrottle).
•Drainandcleanthefueltank
•Checktherearwheeltoe-in.
•Changethehydraulicuid.
•Changethehydrauliclters(sooneriftheserviceintervalindicatorisintheRed 
zone).
•Packtherearwheelbearings
•Adjusttheenginevalves(refertotheengineOperator'sManual)
•Drainandcleanthefueltank
•Flushandreplacethecoolingsystemuid.
•Drainandushthehydraulictank.
•Replaceallmovinghoses.
27
Page 28

DailyMaintenanceChecklist
Duplicatethispageforroutineuse.
Fortheweekof: MaintenanceCheckItem
Mon.Tues.Wed.Thurs.Fri.
Checkthesafetyinterlockoperation.
Checkthebrakeoperation.
Checktheengineoilandfuellevel.
Drainthewater/fuelseparator.
Checktheairlterrestrictionindicator.
Checktheradiatorandscreenfordebris.
Checkunusualenginenoises.
Checkunusualoperatingnoises.
Checkthehydraulicsystemoillevel.
Checkthehydrauliclterindicator.
Checkhydraulichosesfordamage.
Checkforuidleaks.
Checkthetirepressure.
Checktheinstrumentoperation.
ChecktheHeightofCutadjustment
CheckConditionofBlades
Checkallgreasettingsforlubrication.
Touch-updamagedpaint.
1.Checktheglowplugandinjectornozzlesifhardstarting,excesssmoke,orroughrunningisnoted.
1
2
3
Sat.Sun.
2.Checkwiththeenginerunningandtheoilatoperatingtemperature
3.Immediatelyaftereverywashing,regardlessoftheintervallisted
NotationforAreasofConcern
Inspectionperformedby:
ItemDate
1
2
3
4
5
6
7
8
Important:Refertoyour
Note:LookingforanElectricalSchematicorHydraulicSchematicforyourmachine?Downloadafreecopyoftheschematicby
visitingwww .T oro.comandsearchingforyourmachinefromtheManualslinkonthehomepage.
Information
Engine Operator's Man ual
foradditionalmaintenanceprocedures.
28
Page 29

ServiceIntervalChart
Figure26
CAUTION
Ifyouleavethekeyintheignitionswitch,someonecouldaccidentlystarttheengineandseriouslyinjure 
youorotherbystanders.
Removethekeyfromtheignitionbeforeyoudoanymaintenance.
Lubrication
GreasingtheBearingsand 
Bushings
Ifyouoperatethemachineundernormalconditions,lubricate 
allgreasettingsforthebearingsandbushingsafterevery 
50hoursofoperationwithNo.2GeneralPurposeLithium 
BaseGrease.Lubricatebearingsandbushingsimmediately 
aftereverywashing,regardlessoftheintervallisted.
Thegreasettinglocationsandquantitiesareasfollows:
•PumpdriveshaftU-joint(3)(
Figure27)
Figure28
Figure27
•Cuttingunitliftarmcylinders(2each)(Figure28)
29
Page 30

•Liftarmpivots(1each)(Figure28)
•Cuttingunitcarrierframepivot(1each)(Figure29)
Figure29
•Liftarmpivotshaft(1each)(Figure30)
•Axlesteeringpivot(1)(Figure32)
Figure32
•Steeringcylinderballjoints(2)andrearaxle(1)(Figure33)
Figure30
•Rearaxletierod(2)(Figure31)
Figure31
Figure33
•Brakepedal(1)(Figure34)
Figure34
30
Page 31

EngineMaintenance
ServicingtheAirCleaner
Checktheaircleanerbodyfordamagewhichcouldcausean 
airleak.Replaceifdamaged.Checkthewholeintakesystem 
forleaks,damageorloosehoseclamps.
Servicetheaircleanerlteronlywhentheserviceindicator
Figure35)requiresit.Changingtheairlterbeforeitis
( 
necessaryonlyincreasesthechanceofdirtenteringtheengine 
whenthelterisremoved.
Important:Besurethecoverisseatedcorrectlyand 
sealswiththeaircleanerbody .
1.Releasethelatchessecuringtheaircleanercovertothe 
aircleanerbody(Figure35).
5.Installthecoverorientingtherubberoutletvalveina 
downwardposition—betweenapproximately5:00to 
7:00whenviewedfromtheend.
6.Securethelatches.
ServicingtheEngineOiland 
Filter
Changetheengineoilandlterinitiallyaftertherst50hours 
ofoperationandevery150hoursthereafter.
1.Removethedrainplug(Figure36)andlettheoilow 
intoadrainpan.
Figure35
1.Aircleanercover3.Aircleanerservice 
indicator
2.Aircleanercoverlatch
2.Removethecoverfromtheaircleanerbody.Before 
removingthelter,uselowpressureair(40psi,clean 
anddry)tohelpremovelargeaccumulationsofdebris 
packedbetweenoutsideofthelterandthecanister.
Avoidusinghighpressureairwhichcouldforce 
dirtthroughthelterintotheintaketract.
Thiscleaningprocesspreventsdebrisfrommigrating 
intotheintakewhenthelterisremoved.
3.Removeandreplacethelter.
Cleaningoftheusedelementisnotrecommendeddue 
tothepossibilityofdamagetotheltermedia.Inspect 
thenewlterforshippingdamage,checkingthesealing 
endofthelterandthebody .Donotuseadamaged 
element.Insertthenewlterbyapplyingpressureto 
theouterrimoftheelementtoseatitinthecanister.
Donotapplypressuretotheexiblecenterofthe 
lter.
4.Cleanthedirtejectionportlocatedintheremovable 
cover.Removetherubberoutletvalvefromthecover, 
cleanthecavityandreplacetheoutletvalve.
Figure36
1.Oildrainplug
2.Whentheoilstops,installthedrainplug.
3.Removetheoillter(Figure37).
Figure37
1.Oillter
4.Applyalightcoatofcleanoiltothenewlterseal.
31
Page 32

5.Installthereplacementoilltertothelteradapter. 
Turntheoillterclockwiseuntiltherubbergasket 
contactsthelteradapter,thentightenthelteran 
additional1/2turn.
FuelSystem 
Maintenance
Important:Donotover-tightenthelter.
6.Addoiltothecrankcase;refertoCheckingtheEngine 
Oil.
AdjustingtheThrottle
1.Positionthethrottleleverforwardsoitisapproximately 
3mm(1/8inch)fromthefrontofthecontrolarmslot.
2.Loosenthethrottlecableconnector,onthethrottle 
cable,nexttotheinjectionpumplever(Figure38).
Figure38
1.Throttlecablepivot3.Highidlestop
2.Injectionpumpleverarm4.Throttlecableconnector
DANGER
Undercertainconditions,dieselfuelandfuel 
vaporsarehighlyammableandexplosive.Are 
orexplosionfromfuelcanburnyouandothersand 
cancausepropertydamage.
•Useafunnelandllthefueltankoutdoors,in 
anopenarea,whentheengineisoffandiscold. 
Wipeupanyfuelthatspills.
•Donotllthefueltankcompletelyfull.Add 
fueltothefueltankuntilthelevelis6to13mm 
(1/4to1/2inch)belowthebottomoftheller 
neck.Thisemptyspaceinthetankallowsthe 
fueltoexpand.
•Neversmokewhenhandlingfuel,andstayaway 
fromanopenameorwherefuelfumesmaybe 
ignitedbyaspark.
•Storefuelinaclean,safety-approvedcontainer 
andkeepthecapinplace.
DrainingtheFuelTank
ServiceInterval:Every800hours
Beforestorage
3.Holdtheinjectionpumpleverarmagainstthehigh 
idlestop(Figure38).
4.Whilepullingthethrottlecable,toremoveanyslack, 
tightenthethrottlecableconnector.
Note:Whentightened,thecablepivotmustbefreeto 
swivelontheinjectionpumpleverarm.
5.Ifthethrottledoesnotstayinpositionduring 
operation,increasethetorqueonthelocknut,usedto 
setthefrictiondeviceonthethrottlelever.
Drainandcleanthefueltankifthefuelsystembecomes 
contaminatedorifthemachineistobestoredforanextended 
period.Usecleanfueltoushoutthetank.
CheckingtheFuelLinesand 
Connections
Checkthefuellinesandconnectionsevery400hoursor 
yearly,whichevercomesrst.Inspectthemfordeterioration, 
damage,orlooseconnections.
ServicingtheWaterSeparator
ServiceInterval:Every400hours
Drainwaterorothercontaminantsfromwaterseparator 
(Figure39)daily.Replaceltercanisterafterevery400hours 
ofoperation.
1.Placeacleancontainerunderthefuellter.
2.Loosenthedrainplugonthebottomofthelter 
canister.
32
Page 33

Figure39
1.Waterseparatorltercanister
3.Cleantheareawheretheltercanistermounts.
4.Removetheltercanisterandcleanthemounting 
surface.
5.Lubricatethegasketontheltercanisterwithcleanoil.
6.Installtheltercanisterbyhanduntilthegasket 
contactsmountingsurface,thenrotateitanadditional 
1/2turn.
7.Tightenthedrainplugonthebottomofthelter 
canister.
FuelPick-upTubeScreen
Thefuelpick-uptube,locatedinsidethefueltank,isequipped 
withascreentohelppreventdebrisfromenteringthefuel 
system.Removethefuelpick-uptubeandcleanscreenas 
required.
BleedingAirfromtheFuel
Figure40
1.Fuelinjectors
2.TurnthekeyinthekeyswitchtotheOnpositionand 
watchthefuelowaroundtheconnector.Whenyou 
observeasolidowoffuel,turnthekeytotheOff 
position.
3.Tightenthepipeconnectorsecurely.
4.Repeattheprocedureontheremainingnozzles.
Injectors
Note:Thisprocedureshouldbeusedonlyifthefuelsystem
hasbeenpurgedofairthroughnormalprimingprocedures 
andtheenginewillnotstart;refertoBleedingtheFuel 
System.
1.LoosenthepipeconnectiontotheNo.1nozzleand 
holderassembly(Figure40).
33
Page 34

ElectricalSystem 
Maintenance
Important:Beforeweldingonthemachine,disconnect 
bothcablesfromthebattery,bothwireharnessplugs 
fromtheelectroniccontrolmodule,andtheterminal 
connectorfromthealternatortopreventdamagetothe 
electricalsystem.
ServicingtheBattery
WARNING
CALIFORNIA
Proposition65Warning
Batteryposts,terminals,andrelated
accessoriescontainleadandleadcompounds,
chemicalsknowntotheStateofCalifornia
tocausecancerandreproductiveharm.
Washhandsafterhandling.
DANGER
Batteryelectrolytecontainssulfuricacidwhichisa 
deadlypoisonandcausessevereburns.
•Donotdrinkelectrolyteandavoidcontactwith 
skin,eyes,orclothing.Wearsafetyglassesto 
shieldyoureyesandrubberglovestoprotect 
yourhands.
•Fillthebatterywherecleanwaterisalways 
availableforushingtheskin.
Figure41
1.Fuseblock
Figure42
WARNING
Chargingthebatteryproducesgassesthatcan 
explode.
Neversmokenearthebatteryandkeepsparksand 
amesawayfromit.
Checkthebatteryconditionweeklyorafterevery50hours 
ofoperation.Keeptheterminalsandtheentirebatterycase 
cleanbecauseadirtybatterywilldischargeslowly .Toclean 
thebattery,washtheentirecasewithasolutionofbaking 
sodaandwater.Rinseitwithclearwater.
Fuses
Thereare8fusesintheelectricalsystem.Thefuseblock 
(Figure41)islocatedbehindthecontrolarmaccesspanel.
34
Page 35

DriveSystem
7.Testdrivethemachinetomakesureitdoesnotcreep.
Maintenance
AdjustingtheTractionDrive 
forNeutral
Themachinemustnotcreepwhenthetractionpedalis 
released.Ifitdoescreep,adjustasfollows:
1.Parkthemachineonalevelsurface,stoptheengine, 
andlowerthecuttingdeckstotheoor.
2.Jackupthemachineuntilallthetiresareofftheshop 
oor.Supportthemachinewithjackstandstoprevent 
itfromfallingaccidentally.
3.Ontherightsideofthehydrostat,loosenthelocknut 
onthetractionadjustmentcam(
Figure43).
AdjustingtheRearWheel 
Toe-in
1.Rotatethesteeringwheelsothattherearwheelsare 
straightahead.
2.Loosenthejamnutoneachendofthetierod(
44).
Note:Theendofthetierodwiththeexternalgroove 
isalefthandthread.
Figure
Figure43
1.Locknut2.Tractionadjustmentcam
WARNING
Theenginemustberunningsothenal 
adjustmentofthetractionadjustmentcam 
canbeperformed.Thiscouldcausepersonal 
injury.
Keephands,feet,face,andotherbodyparts 
awayfromthemufer,otherhotpartsofthe 
engine,andanyrotatingparts.
Figure44
1.Jamnut3.Wrenchslot
2.Tierod
3.Usingthewrenchslot,rotatethetierod
4.Measurethedistanceatthefrontandrearoftherear 
wheelsataxleheight.Thedistanceatthefrontofthe 
rearwheelsshouldbelessthan6mm(1/4inch)ofthe 
distancemeasuredattherearofthewheels.
5.Repeatprocedureasrequired.
4.Starttheengineandrotatethecamhexineither 
directionuntilthewheelsceaserotation.
5.Tightenthelocknuttosecuretheadjustment.
6.Stoptheengine.Removethejackstandsandlowerthe 
machinetotheshopoor.
35
Page 36

CoolingSystem 
Maintenance
RemovingDebrisfromthe 
CoolingSystem
Removedebrisfromthescreen,oilcoolers,andradiatordaily 
(cleanmorefrequentlyindirtyconditions).
1.Turntheengineoffandremovethekeyfromthe 
ignitionswitch.
2.Thoroughlycleanalldebrisoutoftheenginearea.
3.Unlatchtheclampandpivotopentherearscreen 
(Figure45).
Figure46
1.Oilcooler2.Oilcoolerlatches
6.Thoroughlycleanbothsidesoftheoilcoolerandthe 
radiator(Figure47)withcompressedair.
Figure45
1.Rearscreenlatch2.Rearscreen
4.Cleanthescreenthoroughlywithcompressedair.
5.Pivotthelatchesinwardtoreleasetheoilcooler(Figure
46).
Figure47
1.Radiator
7.Pivottheoilcoolerbackintopositionandsecurethe 
latches.
8.Closethescreenandsecurethelatch.
36
Page 37

BrakeMaintenance
AdjustingtheServiceBrakes
Adjusttheservicebrakeswhenthereismorethan2.5cm(1 
inch)offreetravelofthebrakepedal,orwhenthebrakes 
donotworkeffectively.Freetravelisthedistancethebrake 
pedalmovesbeforeyoufeelbrakingresistance.
Note:Usethewheelmotorbacklashtorockthedrums 
backandforthtoensurethatthedrumsarefreepriortoand 
afteradjustment.
1.Toreducefreetravelofthebrakepedals,tightenthe 
brakesbylooseningthefrontnutonthethreadedend 
ofthebrakecable(Figure48).
AdjustingtheParkingBrake
Iftheparkingbrakefailstoengage,anadjustmenttothe 
brakepawlisrequired.
1.Loosenthe2screwssecuringtheparkingbrakepawl 
totheframe(Figure49).
Figure49
1.Brakecables3.Parkingbrakepawl
2.Screws(2)
4.Brakedetent
Figure48
1.Brakecables2.Frontnuts
2.Tightentherearnuttomovethecablebackwarduntil 
brakepedalshave1.27to1.9cm(1/2to3/4inch)of 
freetravel,beforewheellockupisachieved.
3.Tightenthefrontnuts,ensuringthatbothcables 
actuatethebrakessimultaneously.
2.Presstheparkingbrakepedalforwarduntilthebrake 
detentcompletelyengagesonthebrakepawl(Figure
49).
3.Tightenthe2screwslockingtheadjustment.
4.Pressthebrakepedaltoreleasetheparkingbrake.
5.Checktheadjustmentandreadjustasrequired.
37
Page 38

BeltMaintenance
HydraulicSystem
Checktheconditionandtensionofthealternatorbeltafter 
therstdayofoperationandevery100operatinghours 
thereafter.
TensioningtheAlternatorBelt
1.Openthehood.
2.Checkthetensionofthealternatorbeltbydepressing 
it(Figure50)midwaybetweenthealternatorandthe 
crankshaftpulleyswith10kg(22lb)offorce.
Maintenance
ChangingtheHydraulicFluid
Changehydraulicuidafterevery800operatinghours,in 
normalconditions.Ifuidbecomescontaminated,contact 
yourlocalT orodistributorbecausethesystemmustbe 
ushed.Contaminateduidlooksmilkyorblackwhen 
comparedtocleanoil.
1.Stoptheengineandraisethehood.
2.Placealargedrainpanunderthettingsecuredtothe 
bottomofthehydraulicuidreservoir(Figure51).
Figure50
1.Brace3.Pivotbolt
2.Alternatorbelt
Thebeltshoulddeect11mm(7/16inch).Ifthe 
deectionisincorrect,proceedtothenextstep.If 
correct,continueoperation.
3.Loosentheboltsecuringthebracetotheengine 
(Figure50),theboltsecuringthealternatortothebrace 
andthepivotbolt.
4.Insertaprybarbetweenthealternatorandtheengine 
andpryoutonthealternator.
5.Whenyouachievethepropertension,tighten 
thealternator,braceandpivotboltstosecurethe 
adjustment.
Figure51
1.Hose
3.Disconnectthehosefromthebottomofthettingand 
letthehydraulicuidowintothedrainpan.
4.Installthehosewhenhydraulicuidstopsdraining.
5.Fillthereservoirwithapproximately45liters(12 
U.S.gallons)ofhydraulicuid;refertoCheckingthe 
HydraulicFluid..
Important:Useonlyhydraulicuidsspecied. 
Otheruidscouldcausesystemdamage.
6.Installthereservoircap.
7.Starttheengineanduseallofthehydrauliccontrolsto 
distributehydraulicuidthroughoutthesystem.Also 
checkforleaks.
8.Stoptheengine.
9.Checkthelevelofthehydraulicuidandaddenough 
toraiseleveltotheFullmarkonthedipstick.
Important:Donotover-ll.
38
Page 39

ReplacingtheHydraulicFilters
Thehydraulicsystemisequippedwithaserviceinterval 
indicator(Figure52).Withtheenginerunning,viewthe 
indicator,itshouldbeintheGreenzone.Whentheindicator 
isintheRedzone,changethehydrauliclters.
Figure52
Figure54
1.Hydrauliclter
1.Hydrauliclterrestrictionindicator
Important:Useofanyotherltersmayvoidthe 
warrantyonsomecomponents.
1.Positionthemachineonalevelsurface,lowerthe 
cuttingdecks,stoptheengine,engagetheparking 
brake,andremovethekeyfromtheignitionswitch.
2.Cleantheareaaroundtheltermountingareaandplace 
adrainpanunderlter(Figure53)and(Figure54).
3.Removethelter.
4.Lubricatethegasketonthenewlterwithhydraulicoil.
5.Ensurethattheltermountingareaisclean.
6.Installthelterbyhanduntilthegasketcontactsthe 
mountingsurface,thenrotateitanadditional1/2turn.
7.Repeattheprocedureontheotherlter.
8.Starttheengineandletitrunforabouttwominutesto 
purgeairfromthesystem.
9.Stoptheengineandcheckforleaks.
CheckingtheHydraulicLines 
andHoses
Daily,checkhydrauliclinesandhosesforleaks,kinked 
lines,loosemountingsupports,wear,loosettings,weather 
deterioration,andchemicaldeterioration.Makeallnecessary 
repairsbeforeoperating.
1.Hydrauliclter
Figure53
39
Page 40

WARNING
Hydraulicuidescapingunderpressurecan 
penetrateskinandcauseinjury.
•Makesureallhydraulicuidhosesandlinesare 
ingoodconditionandallhydraulicconnections 
andttingsaretightbeforeapplyingpressureto 
thehydraulicsystem.
•Keepyourbodyandhandsawayfrompin 
holeleaksornozzlesthatejecthighpressure 
hydraulicuid.
•Usecardboardorpapertondhydraulicleaks.
•Safelyrelieveallpressureinthehydraulicsystem 
beforeperforminganyworkonthehydraulic 
system.
•Getimmediatemedicalhelpifuidisinjected 
intoskin.
ChangingtheCounterbalance 
Settings
Duringdifferenttimesofthemowingseasonorwhenturf 
conditionsvary,theamountofcounterbalance(upwardlift) 
requiredonthecuttingdeckscanbechangedtomeetthe 
conditions.
1.Positionthemachineonalevelsurface,lowerthe 
cuttingdecks,stoptheengine,engagetheparking 
brake,andremovethekeyfromtheignitionswitch.
2.Unlatchandremovetheaccesspanelfromthesideof 
thecontrolarm.
3.Locatethetwocappedcounterbalancejumperwires 
insidethecompartment(
Figure55).
Figure56
5.TurnthekeytotheRUNpositionbutDONOTstart 
themachine.
6.Thecurrentcounterbalancesettingwillashonthe 
diagnosticlight.Thesystemallowsfor3settings.The 
machineissetatthefactoryinposition2.
7.Thecounterbalancesettingischangedbyusingthe 
Raise-LowerJoystick.Tochangethecounterbalance 
settingproceedasfollows:
•Movingthejoystickforwardtothelowerposition
andreleasingitwilllowerthecounterbalance 
setting,thusincreasingtheeffectiveweightofeach 
cuttingdeckintheturf
•Movingthejoystickrearwardtotheraiseposition
andreleasingitwillincreasethecounterbalance 
setting,thusdecreasingtheeffectiveweightofeach 
cuttingdeckintheturf
•Afterthejoystickisreleased,thediagnosticlight
willashthenewcounterbalancesetting(1,2,or3).
8.Whenthedesiredsettingisattained,rotatethekeyto 
theOffposition.
9.Unplugthejumperwires,installthecaponthewires 
andputthewiresbackintothecompartment.
10.Replaceandlatchtheaccesscover.
Figure55
1.Counterbalancejumper 
wires
4.WiththekeyintheOFFposition,removethecapfrom 
jumperwiresandplugthewirestogether(Figure56).
2.Wirecap
Note:Themachinecannotbeoperatedwhileinthe 
counterbalanceadjustmentmode.Oncetheadjustment 
hasbeencompleted,movethemachinetoatestarea 
andoperatethemachinewiththenewsetting.The 
newcounterbalancedsettingmaychangetheeffective 
heightofcut.
HydraulicSystemTestPorts
Usethehydraulicsystemtestportstotestthepressurein 
thehydrauliccircuits.ContactyourlocalTorodistributorfor 
assistance.
40
Page 41

Storage
PreparingtheTractionUnit
1.Thoroughlycleanthetractionunit,cuttingdecks,and 
engine.
2.Checkthetirepressure.Inatealltractionunittiresto 
83to103kPa(12to15psi).
3.Checkallfastenersforloosenessandtightenthemas 
necessary.
4.Greaseallgreasettingsandpivotpoints.Wipeup 
anyexcesslubricant.
5.Lightlysandandusetouch-uppaintonpaintedareas 
thatarescratched,chipped,orrusted.Repairanydents 
inthemetalbody.
6.Servicethebatteryandcablesasfollows:
A.Removethebatteryterminalsfromthebattery
posts.
B.Cleanthebattery,terminals,andpostswithawire
brushandbakingsodasolution.
C.Coatthecableterminalsandbatterypostswith
Grafo112Xskin-overgrease(T oroPartNo. 
505-47)orpetroleumjellytopreventcorrosion.
D.Slowlyrechargethebatteryevery60daysfor24
hourstopreventleadsulfationofthebattery.
PreparingtheEngine
1.Draintheengineoilfromtheoilpanandreplacethe 
drainplug.
2.Removeanddiscardtheoillter.Installanewoillter.
3.Relltheoilpanwithdesignatedquantityofmotoroil.
4.Starttheengineandrunitatidlespeedfor 
approximatelytwominutes.
5.Stoptheengine.
6.Thoroughlydrainallfuelfromthefueltank,lines,and 
thefuellter/waterseparatorassembly.
7.Flushthefueltankwithfresh,cleandieselfuel.
8.Secureallfuelsystemttings.
9.Thoroughlycleanandservicetheaircleanerassembly.
10.Sealtheaircleanerinletandtheexhaustoutletwith 
weatherprooftape.
11.Checktheantifreezeprotectionandaddasneededfor 
expectedminimumtemperatureinyourarea.
41
Page 42

Notes:
42
Page 43

Notes:
43
Page 44

TheToroTotalCoverageGuarantee
ALimitedWarranty
ConditionsandProductsCovered
TheToroCompanyanditsafliate,ToroWarrantyCompany ,pursuant 
toanagreementbetweenthem,jointlywarrantyourToroCommercial 
product(“Product”)tobefreefromdefectsinmaterialsorworkmanship 
fortwoyearsor1500operationalhours*,whicheveroccursrst.This 
warrantyisapplicabletoallproductswiththeexceptionofAerators 
(refertoseparatewarrantystatementsfortheseproducts).Wherea 
warrantableconditionexists,wewillrepairtheProductatnocosttoyou 
includingdiagnostics,labor,parts,andtransportation.Thiswarranty 
beginsonthedatetheProductisdeliveredtotheoriginalretailpurchaser. 
*Productequippedwithanhourmeter.
InstructionsforObtainingWarrantyService
YouareresponsiblefornotifyingtheCommercialProductsDistributoror 
AuthorizedCommercialProductsDealerfromwhomyoupurchasedthe 
Productassoonasyoubelieveawarrantableconditionexists.Ifyouneed 
helplocatingaCommercialProductsDistributororAuthorizedDealer,or 
ifyouhavequestionsregardingyourwarrantyrightsorresponsibilities, 
youmaycontactusat:
ToroCommercialProductsServiceDepartment 
ToroWarrantyCompany
811 1LyndaleAvenueSouth 
Bloomington,MN55420-1 196
952–888–8801or800–952–2740 
E-mail:commercial.warranty@toro.com
OwnerResponsibilities
AstheProductowner,youareresponsibleforrequiredmaintenance 
andadjustmentsstatedinyourOperator'sManual.Failuretoperform 
requiredmaintenanceandadjustmentscanbegroundsfordisallowinga 
warrantyclaim.
ItemsandConditionsNotCovered
Notallproductfailuresormalfunctionsthatoccurduringthewarranty 
periodaredefectsinmaterialsorworkmanship.Thiswarrantydoesnot 
coverthefollowing:
•Productfailureswhichresultfromtheuseofnon-Tororeplacement
parts,orfrominstallationanduseofadd-on,ormodiednon-T oro 
brandedaccessoriesandproducts.Aseparatewarrantymaybe 
providedbythemanufactureroftheseitems.
•Productfailureswhichresultfromfailuretoperformrecommended
maintenanceand/oradjustments.Failuretoproperlymaintainyour 
ToroproductpertheRecommendedMaintenancelistedinthe 
Operator’sManualcanresultinclaimsforwarrantybeingdenied.
•ProductfailureswhichresultfromoperatingtheProductinan
abusive,negligent,orrecklessmanner.
•Partssubjecttoconsumptionthroughuseunlessfoundtobe
defective.Examplesofpartswhichareconsumed,orusedup, 
duringnormalProductoperationinclude,butarenotlimitedto,brake 
padsandlinings,clutchlinings,blades,reels,rollersandbearings 
(sealedorgreasable),bedknives,sparkplugs,castorwheelsand 
bearings,tires,lters,belts,andcertainsprayercomponentssuchas 
diaphragms,nozzles,andcheckvalves,etc.
•Failurescausedbyoutsideinuence.Conditionsconsideredtobe
outsideinuenceinclude,butarenotlimitedto,weather,storage 
practices,contamination,useofunapprovedfuels,coolants, 
lubricants,additives,fertilizers,water,orchemicals,etc.
•Failureorperformanceissuesduetotheuseoffuels(e.g.gasoline,
diesel,orbiodiesel)thatdonotconformtotheirrespectiveindustry 
standards.
•Normalnoise,vibration,wearandtear,anddeterioration.
•Normal“wearandtear”includes,butisnotlimitedto,damageto
seatsduetowearorabrasion,wornpaintedsurfaces,scratched 
decalsorwindows,etc.
Parts
Partsscheduledforreplacementasrequiredmaintenancearewarranted 
fortheperiodoftimeuptothescheduledreplacementtimeforthatpart. 
Partsreplacedunderthiswarrantyarecoveredforthedurationofthe 
originalproductwarrantyandbecomethepropertyofT oro.T orowill 
makethenaldecisionwhethertorepairanyexistingpartorassemblyor 
replaceit.T oromayuseremanufacturedpartsforwarrantyrepairs.
DeepCycleandLithium-IonBatteryWarranty:
DeepcycleandLithium-Ionbatterieshaveaspeciedtotalnumberof 
kilowatt-hourstheycandeliverduringtheirlifetime.Operating,recharging, 
andmaintenancetechniquescanextendorreducetotalbatterylife.Asthe 
batteriesinthisproductareconsumed,theamountofusefulworkbetween 
chargingintervalswillslowlydecreaseuntilthebatteryiscompletelyworn 
out.Replacementofwornoutbatteries,duetonormalconsumption, 
istheresponsibilityoftheproductowner.Batteryreplacementmaybe 
requiredduringthenormalproductwarrantyperiodatowner’sexpense. 
Note:(Lithium-Ionbatteryonly):ALithium-Ionbatteryhasapartonly 
proratedwarrantybeginningyear3throughyear5basedonthetime 
inserviceandkilowatthoursused.RefertotheOperator'sManualfor 
additionalinformation.
MaintenanceisatOwner’sExpense
Enginetune-up,lubrication,cleaningandpolishing,replacementoflters, 
coolant,andcompletingrecommendedmaintenancearesomeofthe 
normalservicesT oroproductsrequirethatareattheowner’sexpense.
GeneralConditions
RepairbyanAuthorizedT oroDistributororDealerisyoursoleremedy 
underthiswarranty.
NeitherTheToroCompanynorToroWarrantyCompanyisliablefor 
indirect,incidentalorconsequentialdamagesinconnectionwiththe 
useoftheToroProductscoveredbythiswarranty ,includingany 
costorexpenseofprovidingsubstituteequipmentorserviceduring 
reasonableperiodsofmalfunctionornon-usependingcompletion 
ofrepairsunderthiswarranty.ExceptfortheEmissionswarranty 
referencedbelow,ifapplicable,thereisnootherexpresswarranty . 
Allimpliedwarrantiesofmerchantabilityandtnessforuseare 
limitedtothedurationofthisexpresswarranty .
Somestatesdonotallowexclusionsofincidentalorconsequential 
damages,orlimitationsonhowlonganimpliedwarrantylasts,sothe 
aboveexclusionsandlimitationsmaynotapplytoyou.Thiswarranty 
givesyouspeciclegalrights,andyoumayalsohaveotherrightswhich 
varyfromstatetostate.
Noteregardingenginewarranty:
TheEmissionsControlSystemonyourProductmaybecoveredby 
aseparatewarrantymeetingrequirementsestablishedbytheU.S. 
EnvironmentalProtectionAgency(EPA)and/ortheCaliforniaAir 
ResourcesBoard(CARB).Thehourlimitationssetforthabovedonot 
applytotheEmissionsControlSystemWarranty.RefertotheEngine 
EmissionControlWarrantyStatementsuppliedwithyourproductor 
containedintheenginemanufacturer’sdocumentationfordetails
CountriesOtherthantheUnitedStatesorCanada
CustomerswhohavepurchasedT oroproductsexportedfromtheUnitedStatesorCanadashouldcontacttheirT oroDistributor(Dealer)toobtain 
guaranteepoliciesforyourcountry ,province,orstate.IfforanyreasonyouaredissatisedwithyourDistributor'sserviceorhavedifcultyobtaining 
guaranteeinformation,contacttheT oroimporter.
374-0253RevB