Toro 30551 User manual

FormNo.3363-213Rev B
62inSideDischargeMower
Groundsmaster®200,3320&3280DSeries
TractionUnit
ModelNo.30551—SerialNo.310000001andUp
ToregisteryourproductordownloadanOperator'sManualorPartsCatalogatnocharge,gotowww.Toro.com.OriginalInstructions(EN)

Introduction
ThisproductcomplieswithallrelevantEuropean
directives,fordetailspleaseseetheseparateproduct
specicDeclarationofConformity(DOC)sheet.
Thisrotary-bladelawncuttingdeckismounted
toaride-onmachineandisintendedtobeused
byprofessional,hiredoperatorsincommercial
applications.Itisprimarilydesignedforcuttinggrass
onwell-maintainedlawnsinparks,sportselds,and
oncommercialgrounds.Itisnotdesignedforcutting
brush,mowinggrassandothergrowthalongside
highways,orforagriculturaluses.
Readthisinformationcarefullytolearnhowtooperate
andmaintainyourproductproperlyandtoavoidinjury
andproductdamage.Youareresponsibleforoperating
theproductproperlyandsafely.
YoumaycontactTorodirectlyatwww .Toro.comfor
productandaccessoryinformation,helpndinga
dealer,ortoregisteryourproduct.
Wheneveryouneedservice,genuineToroparts,or
additionalinformation,contactanAuthorizedService
DealerorToroCustomerServiceandhavethemodel
andserialnumbersofyourproductready.Themodel
andserialnumbersarestampedintoaplatelocatedon
thecarrierframebehindtherightfrontcastorwheel.
Writethenumbersinthespaceprovided.
ModelNo.
SerialNo.
Thismanualidentiespotentialhazardsandhas
safetymessagesidentiedbythesafetyalertsymbol
(Figure1),whichsignalsahazardthatmaycauseserious
injuryordeathifyoudonotfollowtherecommended
precautions.
Figure1
1.Safetyalertsymbol
Thismanualuses2otherwordstohighlightinformation.
Importantcallsattentiontospecialmechanical
informationandNoteemphasizesgeneralinformation
worthyofspecialattention.
Contents
Introduction.................................................................2
Safety...........................................................................3
SafeOperatingPractices.......................................3
ToroMowerSafety...............................................4
SafetyandInstructionalDecals.............................6
Setup............................................................................8
1InstallingtheCastorWheelAssemblies...............8
2InstallingtheLiftArms......................................9
3ConnectingtheLiftArmstotheCutting
Unit................................................................10
4MountingthePTOShaftGuardand
ConnectingthePTOShafttotheCutting
UnitGearBox................................................10
5InstallingtheRearWeight.................................11
ProductOverview......................................................12
Specications.....................................................12
Attachments/Accessories...................................12
Operation...................................................................12
AdjustingtheHeight-of-Cut...............................12
AdjustingtheRollersandGageWheel.................13
..........................................................................14
CheckingtheGearBoxLubricant.......................14
GreasingtheCuttingUnit...................................14
AdjustingtheWeightTransfer.............................14
UsingtheGrassDeector...................................14
Maintenance...............................................................16
Lubrication.........................................................16
SeparatingtheCuttingUnitfromtheTraction
Unit................................................................16
MountingtheCuttingUnittotheTraction
Unit................................................................17
ServicingtheBushingsintheCastor
Arms..............................................................17
ServicingtheCastorWheelsandBearings............18
CheckingforaBentBlade...................................18
RemovingtheCuttingBlade...............................18
InspectingandSharpeningtheBlade...................19
CheckingandCorrectingMismatchof
Blades............................................................20
ReplacingtheGrassDeector.............................21
AdjustingtheIdlerPulley....................................21
ReplacingtheDriveBelt.....................................22
Troubleshooting.........................................................23
©2009—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420
2
Contactusatwww.Toro.com.
PrintedintheUSA
AllRightsReserved

Safety
ThismachinemeetsorexceedsCENstandard
EN836:1997,ISOstandard5395:1990,andANSI
B71.4-2004specicationsineffectatthetimeof
production.
Improperuseormaintenancebytheoperatoror
ownercanresultininjury.Toreducethepotential
forinjury,complywiththesesafetyinstructions
andalwayspayattentiontothesafetyalertsymbol,
whichmeansCAUTION,WARNING,orDANGER-
"personalsafetyinstruction."Failuretocomplywiththe
instructionmayresultinpersonalinjuryordeath.
SafeOperatingPractices
ThefollowinginstructionsarefromtheCENstandard
EN836:1997,ISOstandard5395:1990,andANSI
B71.4-2004.
Training
•Readtheoperator’smanualandothertraining
materialcarefully.Befamiliarwiththecontrols,
safetysigns,andtheproperuseoftheequipment.If
theoperatorormechaniccannotreadthelanguage
ofthismanual,itistheowner’sresponsibilityto
explainthismaterialtothem.
•Becomefamiliarwiththesafeoperationofthe
equipment,operatorcontrols,andsafetysigns.
•Alloperatorsandmechanicsshouldbetrained.The
ownerisresponsiblefortrainingtheusers.
•Neverletchildrenoruntrainedpeopleoperateor
servicetheequipment.Localregulationsmayrestrict
theageoftheoperator.
•Theowner/usercanpreventandisresponsiblefor
accidentsorinjuriesoccurringtohimselforherself,
otherpeople,orproperty.
Preparation
•Evaluatetheterraintodeterminewhataccessories
andattachmentsareneededtoproperlyand
safelyperformthejob.Onlyuseaccessoriesand
attachmentsapprovedbythemanufacturer.
•Wearappropriateclothingincludinghardhat,safety
glassesandearprotection.Longhair,looseclothing
orjewelrymaygettangledinmovingparts.
•Inspecttheareawheretheequipmentistobeused
andremoveallobjectssuchasrocks,toysandwire
whichcanbethrownbythemachine.
•Useextracarewhenhandlinggasolineandother
fuels.Theyareammableandvaporsareexplosive.
–Useonlyanapprovedcontainer.
–Neverremovefuelcaporaddfuelwithengine
running.Allowenginetocoolbeforerefueling.
Donotsmoke.
–Neverrefuelordrainthemachineindoors.
•Checkthatoperator’spresencecontrols,safety
switchesandshieldsareattachedandfunctioning
properly.Donotoperateunlesstheyarefunctioning
properly.
Operation
•Neverrunanengineinanenclosedarea.
•Onlyoperateingoodlight,keepingawayfromholes
andhiddenhazards.
•Besurealldrivesareinneutralandparkingbrakeis
engagedbeforestartingengine.Onlystartengine
fromtheoperator’sposition.Useseatbeltsif
provided.
•Slowdownanduseextracareonhillsides.Besure
totravelintherecommendeddirectiononhillsides.
Turfconditionscanaffectthemachine’sstability.
Usecautionwhileoperatingneardrop-offs.
•Slowdownandusecautionwhenmakingturnsand
whenchangingdirectionsonslopes.
•Neverraisedeckwiththebladesrunning.
•Neveroperatewithguardsnotsecurelyinplace.Be
sureallinterlocksareattached,adjustedproperly,
andfunctioningproperty.
•Donotchangetheenginegovernorsettingor
overspeedtheengine.
•Stoponlevelground,lowerthecuttingunits,
disengagedrives,engageparkingbrake(ifprovided),
shutoffenginebeforeleavingtheoperator’sposition
foranyreason.
•Stopequipmentandinspectthebladesafterstriking
objectsorifanabnormalvibrationoccurs.Make
necessaryrepairsbeforeresumingoperations.
•Keephandsandfeetawayfromthecuttingunits.
•Lookbehindanddownbeforebackinguptobesure
ofaclearpath.
•Nevercarrypassengersandkeeppetsandbystanders
away.
•Slowdownandusecautionwhenmakingturnsand
crossingroadsandsidewalks.Stopbladesifnot
mowing.
•Donotoperatethemowerundertheinuenceof
alcoholordrugs.
3

•Lightningcancausesevereinjuryordeath.If
lightningisseenorthunderisheardinthearea,do
notoperatethemachine;seekshelter.
•Usecarewhenloadingorunloadingthemachine
intoatrailerortruck.
•Usecarewhenapproachingblindcorners,shrubs,
trees,orotherobjectsthatmayobscurevision.
•Theoperatorshallturnonashingwarninglights,
ifprovided,whenevertravelingonapublicroad,
exceptwheresuchuseisprohibitedbylaw .
MaintenanceandStorage
•Disengagedrives,lowerthecuttingunits,move
tractionpedaltoNeutral,setparkingbrake,stop
engineandremovekey.Waitforallmovementto
stopbeforeadjusting,cleaningorrepairing.
•Cleangrassanddebrisfromcuttingunits,drives,
mufers,andenginetohelppreventres.Letengine
coolbeforestoringanddonotstorenearame.
Cleanupoilorfuelspillage.
•Letenginecoolbeforestoringanddonotstorenear
ame.
•Shutofffuelwhilestoringortransporting.Donot
storefuelnearamesordrainindoors.
•Parkmachineonlevelground.Neverallowuntrained
personneltoservicemachine.
•Usejackstandstosupportcomponentswhen
required.
•Carefullyreleasepressurefromcomponentswith
storedenergy.
•Disconnectbatterybeforemakinganyrepairs.
Disconnectthenegativeterminalrstandthe
positivelast.Reconnectpositiverstandnegative
last.
•Usecarewhencheckingblades.Wrapthebladesor
weargloves,andusecautionwhenservicingthem.
Onlyreplaceblades.Neverstraightenorweldthem.
•Keephandsandfeetawayfrommovingparts.If
possible,donotmakeadjustmentswiththeengine
running.
•Chargebatteriesinanopenwellventilatedarea,
awayfromsparkandames.Unplugchargerbefore
connectingordisconnectingfrombattery.Wear
protectiveclothinganduseinsulatedtools.
•Keepallpartsingoodworkingconditionandall
hardwaretightened.Replaceallwornordamaged
decals.
ToroMowerSafety
Thefollowinglistcontainssafetyinformationspecic
toToroproductsorothersafetyinformationthatyou
mustknowthatisnotincludedintheCEN,ISO,or
ANSIstandard.
Thisproductiscapableofamputatinghandsand
feetandthrowingobjects.Alwaysfollowallsafety
instructionstoavoidseriousinjuryordeath.
Useofthisproductforpurposesotherthanitsintended
usecouldprovedangeroustouserandbystanders.
•Knowhowtostoptheenginequickly.
•Donotoperatethemachinewhilewearingtennis
shoesorsneakers.
•Wearingsafetyshoesandlongpantsisadvisableand
requiredbysomelocalordinancesandinsurance
regulations.
•Handlefuelcarefully.Wipeupanyspills.
•Checkthesafetyinterlockswitchesdailyforproper
operation.Ifaswitchshouldfail,replacetheswitch
beforeoperatingthemachine.
•Usingthemachinedemandsattention.Toprevent
lossofcontrol:
–Donotdriveclosetosandtraps,ditches,creeks,
embankments,orotherhazards.
–Avoidsuddenstopsandstarts.
–Whennearorcrossingroads,alwaysyieldthe
right-of-way.
–Lowerthecuttingunitwhengoingdownslopes.
•Thegrassdeectormustalwaysbeinstalledandin
thelowestpositiononthesidedischargecutting
unit.Neveroperatethemowerwithoutthedeector
orentiregrasscollector.
•Ifthecuttingunitdischargeareaeverplugs,shutthe
engineoffbeforeremovingtheobstruction.
•Cutgrassslopescarefully.Donotstart,stop,orturn
suddenly.
•Donottouchtheengineormuferwhiletheengine
isrunningorsoonafterithasstoppedbecausethese
areascouldbehotenoughtocauseburns.
MaintenanceandStorage
•Checktheblademountingboltsfrequentlytobe
surethattheyaretightenedtospecication.
•Makesurethatallhydrauliclineconnectorsare
tightandallhydraulichosesandlinesareingood
conditionbeforeapplyingpressuretothesystem.
•Keepyourbodyandhandsawayfrompinhole
leaksornozzlesthatejecthydraulicuidunderhigh
4

pressure.Usepaperorcardboard,notyourhands,
tosearchforleaks.Hydraulicuidescapingunder
pressurecanhavesufcientforcetopenetratethe
skinandcauseseriousinjury.
•Beforedisconnectingorperforminganyworkon
thehydraulicsystem,allpressureinthesystemmust
berelievedbystoppingtheengineandloweringthe
cuttingunitstotheground.
•Iftheenginemustberunningtoperforma
maintenanceadjustment,keephands,feet,clothing,
andanypartsofthebodyawayfromthecutting
units,attachments,andanymovingparts.Keep
everyoneaway.
•Donotoverspeedtheenginebychanginggovernor
settings.Toensuresafetyandaccuracy,havean
AuthorizedToroDistributorcheckthemaximum
enginespeedwithatachometer.
•Theenginemustbeshutoffbeforecheckingtheoil
oraddingoiltothecrankcase.
•Makesurethatthemowerfueltankisemptyifthe
machineistobestoredinexcessof30days.Do
notstorethemowernearanyopenameorwhere
gasolinefumesmaybeignitedbyaspark.
•Performonlythosemaintenanceinstructions
describedinthismanual.Ifmajorrepairsare
everneededorifassistanceisdesired,contactan
AuthorizedToroDistributor.
•Tomakesureofoptimumperformanceand
continuedsafetycerticationofthemachine,use
onlygenuineTororeplacementpartsandaccessories.
Replacementpartsandaccessoriesmadebyother
manufacturerscouldbedangerous,andsuchuse
couldvoidtheproductwarranty.
5

SafetyandInstructionalDecals
Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyareaof
potentialdanger.Replaceanydecalthatisdamagedorlost.
107-2916
1.Removetheignitionkeyandreadthe
Operator’sManualbeforeservicingor
performingmaintenance.
2.Thrownobjecthazard—donotoperate
themowerwiththedeectorupor
removed,keepthedeectorinplace;
keepbystandersasafedistancefrom
themachine.
3.Cutting/dismembermenthazardof
handorfoot,mowerblade—stayaway
frommovingparts.
43-8480
106-6753
Applyover43–8480forCECompliance
1.Thrownobjecthazard—keepbystandersasafedistance
fromthemachine.
2.Cutting/dismembermenthazardofhandorfoot,mower
blade—stayawayfrommovingparts.
93–6696
1.Storedenergyhazard—readtheOperator’sManual.
93-6697
1.ReadtheOperator’s
Manual.
2.AddSAE80w-90(API
GL-5)oilevery50hours.
93-7818
1.Warning—readtheOperator’sManualforinstructionson
torquingthebladebolt/nutto115-149N•m(85-110ft-lb).
92–3035
1.Height-of-cut
6

99–5172
100-6578
1.Entanglementhazard,belt—donotoperatethemachine
withtheshieldsorguardsremoved;alwayskeepthe
shieldsandguardsinplace;stayawayfrommovingparts.
105–9553
1.Warning—readtheOperator’sManual.
2.Tippinghazard—lowerthecuttingunitwhendrivingdown
slopes.For2wheeldriveunits,adda25kg(55lb.)rear
weighttoGM228Dunitsanda48kg(105lb.)rearweight
toGM225units.For4wheeldriveunits,donotaddweight.
107-2908
1.Thrownobjecthazard—keepbystandersasafedistance
fromthemachine.
2.Thrownobjecthazard—donotoperatethemowerwiththe
deectoruporremoved,keepthedeectorinplace.
3.Cutting/dismembermenthazardofhandorfoot,mower
blade—stayawayfrommovingparts.
107-2915
1.Entanglementhazard,shaft—tykeepbystandersasafe
distancefromthemachine.
107-2926
1.Cutting/dismembermenthazard,impeller—stayawayfrom
movingparts.
2.Thrownobjecthazard—keepbystandersasafedistance
fromthemachine.
93–7301
1.Warning-readtheOperator’sManual.
2.Thrownobjecthazard-stayawayfrommovingparts;keep
allguardsandshieldsinplace.
7

Setup
LooseParts
Usethechartbelowtoverifythatallpartshavebeenshipped.
ProcedureDescriptionQty.Use
Frontcastorwheelassembly2
1Rearcastorwheelassembly2Installthecastorwheelassemblies.
Right-handliftarm1
Left-handliftarm1
Pivotpin2
2Cotterpin(5/32x1-3/4inches)2
Installtheliftarms.
3Nopartsrequired–Connecttheliftarmstothecuttingunit.
4Nopartsrequired–
MountthePTOshaftguardandconnect
thePTOshafttothecuttingunitgear
box.
5Nopartsrequired–Installtherearweight.
MediaandAdditionalParts
DescriptionQty.Use
PartsCatalog1
Operator’sManual1Reviewthematerialandsaveinanappropriateplace:
Certicateofconformance1
IftheengineisstartedandthePTOshaftis
allowedtorotate,seriousinjurycouldresult.
DonotstarttheengineandengagethePTO
leverwhenthePTOshaftisnotconnectedto
thegearboxonthecuttingunit.
Note:Determinetheleftandrightsidesofthemachine
fromthenormaloperatingposition.
Note:Wheninstallingthe62inchdeckontoa
Groundsmaster200Seriestractionunit,theWeight
TransferKit,ToroPartNumber70-8100mustbe
installed.
1
InstallingtheCastorWheel
Assemblies
Partsneededforthisprocedure:
2Frontcastorwheelassembly
2Rearcastorwheelassembly
Procedure
Thethrustwashers,spacers,andtensioningcapshave
beeninstalledonthecastorwheelspindlesforshipping.
1.Removethetensioningcapsfromthespindleshafts
andslideoffthespacersandthrustwashers(Figure2
andFigure3).
8

Figure2
FrontCastorWheelAssembly
1.Tensioningcap3.Spacers
2.Thrustwashers4.Frontcastorspindle
Figure3
RearCastorWheelAssembly
1.Tensioningcap3.Spacers
2.Thrustwashers4.Rearcastorspindle
2.Slidethespacersontothecastorspindletogetthe
desiredheight-of-cut;refertothechartinAdjusting
theHeight-of-CutintheOperationsection.
3.Slideathrustwasherontothespindle,pushthe
roundcastorspindlethroughthefrontcastorarm,
andthehexcastorspindlethroughtherearcastor
arm.
4.Installanotherthrustwasherandtheremaining
spacersontothespindleandinstallthetensioning
captosecuretheassembly.
Important:Thethrustwashers,notthespacers,
mustcontactthetopandbottomofthecastor
arm.
5.Ensurethatallfourcastorwheelsaresetatthesame
height-of-cutandrollthecuttingunitoffofthe
pallet.
2
InstallingtheLiftArms
Partsneededforthisprocedure:
1Right-handliftarm
1Left-handliftarm
2Pivotpin
2Cotterpin(5/32x1-3/4inches)
Procedure
1.Ononesideofthetractionunit,loosen(donot
remove)thewheelnutsthatsecurethewheeland
tireassemblytothefrontwheelstuds.
2.Jackupthemachineuntilthefrontwheelisoffthe
oor.
Note:Usejackstandsorblockthemachineto
preventitfromaccidentallyfalling.
3.Removethewheelnutsandslidethewheelandtire
assemblyoffthestuds.
4.Mountaliftarm(withtheballjointendpositioned
outward)tothepivotbracketwithapivotpinanda
cotterpin(5/32x1-3/4inches)(Figure4).
9

Figure4
1.Pivotpin3.Liftarmpivotbracket
2.Liftarm4.Brakereturnspring
5.Mounttherearoftheliftarmtotheliftcylinder
withapivotpinand2cotterpins(suppliedwiththe
tractionunit).
6.Hookthebrakereturnspringtotheholeinthelift
arm(Figure4).
7.Repeattheprocedureontheoppositesideofthe
machine.
3
ConnectingtheLiftArmsto
theCuttingUnit
NoPartsRequired
Procedure
1.Movethecuttingunitintopositioninfrontofthe
tractionunit.
2.Measurethedistancefromtheendofeachliftarm
tothecenteroftheballjoint(greasetting).The
distanceshouldbe2-1/4inches(57mm)(Figure5).
Note:Ifthedistanceisnot2-1/4inches(57mm),
loosenthejamnutthatsecurestheballjointtothe
liftarmandrotatetheballjointinoroutuntilthe
distanceisattained.Donottightenthejamnutsat
thistime.
Figure5
1.Liftarm3.Jamnut
2.Balljoint4.2–1/4inch(57mm)
3.MovetheliftlevertotheFloatposition.Pushthelift
armsdownuntiltheholesintheballjointmounts
lineupwiththeholesinthecastorarms.
Note:OntheGroundsmaster3280–Dand3320
theenginemustberunningtolowertheliftarms.
4.Securetheballjointmountstoeachcastorarmwith
2capscrews(7/16x3inches)andangenuts(7/16
inches)(Figure6).
Figure6
1.Castorarm4.Capscrew
2.Balljointmount5.Flangenut
3.Balljoint
Note:Theballjointmountshouldbeabovethe
castorarmwhenitisassembled.
5.Tightenthelargejamnutthatsecurestheballjoint
totheliftarm(Figure6).
Note:Whentighteningthejamnut,holdtheball
jointstraighttopermitproperoscillationduring
raisingandloweringofthecuttingunit.
10

4
MountingthePTOShaftGuard
andConnectingthePTOShaft
totheCuttingUnitGearBox
NoPartsRequired
Procedure
1.Removethe2capscrewsandlockwashersthat
securethePTOguardmountingbracketstothegear
box(Figure7).
Figure7
1.PTOguard2.Gearbox
Note:Retainthefastenersforfutureinstallation.
2.SlidethePTOshaftguardontothePTOshaft,
positioningtheguardasshowninFigure7.
3.SlidethemalePTOshaftintothefemalePTOshaft.
Note:Alignthemountingholesinthegearcase
inputshaftwiththeholesinthePTOshaftandslide
themtogether.
4.Securethemwitharollpin.
5.Tightenthecapscrewsandnuts.
6.AttachthePTOshaftguardtothegearboxwiththe
2capscrewsandlockwasherspreviouslyremoved.
5
InstallingtheRearWeight
NoPartsRequired
Procedure
TwoWheelDriveGroundsmaster1000and200Series
tractionunitscomplywithCENstandardEN836:1997,
ISOstandard5395:1990andtheANSIB71.4-2004
Standardwhenequippedwithrearweight.Refertothe
chartinthetractionunitOperator’sManualtodetermine
thecombinationsofweightrequired.Ordertheparts
fromyourlocalAuthorizedToroDistributor.
FourWheelDriveGroundsmaster200Seriestraction
unitsdonotneedadditionalrearweighttocomplywith
CENstandardEN836:1997,ISOstandard5395:1990
andtheANSIB71.4-2004Standard.
TwoWheelDriveGroundsmaster3280-Dand
Groundsmaster3320tractionunitswithserialnumbers
250000101through259999999complywithCEN
standardEN836:1997,ISOstandard5395:1990andthe
ANSIB71.4-2004Standardwhenequippedwiththerear
weightkit,partnumber24-5780.
TwoWheelDriveGroundsmaster3280-Dand
Groundsmaster3320tractionunitswithserialnumbers
260000101andupdonotneedadditionalrearweightto
complywithCENstandardEN836:1997,ISOstandard
5395:1990andtheANSIB71.4-2004Standard.
FourWheelDriveGroundsmaster3280-Dtractionunits
donotneedadditionalrearweighttocomplywithCEN
standardEN836:1997,ISOstandard5395:1990andthe
ANSIB71.4-2004Standard.
11

ProductOverview
Specications
Note:Specicationsanddesignaresubjecttochange
withoutnotice.
Widthof
Cut
61-5/8inches(1.56m)
Height
ofCut
Adjustablefrom1to4inches(25to102mm)in1/2
inch(13mm)increments
Blade
Tip
Speed
15,480ft/minute@3250engineRPM
Cutting
Blades
3heat-treatedsteelblades,each3/16inch(4.8mm)
thickand24-3/4inches(55cm)long
Castor
Wheels
8inch(203mm)diametergreaseablerollerbearings
(inatedto35-50psi[241-345kPa])
Drive
System
PTOdrivengearboxtransmitspowerthrougha"AA"
sectionbelttoallbladespindles.
Net
Weight
539lb(244kg)
Attachments/Accessories
AselectionofToroapprovedattachmentsand
accessoriesareavailableforusewiththemachineto
enhanceandexpanditscapabilities.Contactyour
AuthorizedServiceDealerorDistributororgoto
www.Toro.comforalistofallapprovedattachments
andaccessories.
Operation
Note:Determinetheleftandrightsidesofthe
machinefromthenormaloperatingposition.
AdjustingtheHeight-of-Cut
Theheight-of-cutisadjustablefrom1to4inches(25to
102mm)in1/2inch(13mm)increments,byaddingor
removinganequalnumberofspacersonthefrontand
rearcastorforks.Theheight-of-cutchartbelowgives
thecombinationsofspacerstouseforallheight-of-cut
settings.
SpacersBelowCastorArm Height-of-Cut
Setting(inches)FrontRear
1(25mm)00
1-1/2(38mm)11
2(51mm)22
2-1/2(64mm)33
3(76mm)44
3-1/2(89mm)55
4(102mm)66
1.Starttheengineandraisethecuttingunitsothat
theheight-of-cutcanbechanged.
2.Stoptheengineafterthecuttingunitisraised.
AdjustingtheFrontCastorWheels
1.Removethetensioningcapfromthespindleshaft
andslidethespindleoutofthefrontcastorarm
(Figure8).
Figure8
1.Frontcastorwheel3.Spacers
2.Tensioningcap4.Thrustwashers
12

2.Removethewasherfromthespindleshaft.
3.Slidethespacersontothespindleshafttogetthe
desiredheight-of-cut,thenslidethewasheronto
theshaft.
4.Pushthecastorspindlethroughthefrontcastor
arm.
5.Installtheotherthrustwasherandremaining
spacersontothespindle.
6.Installthetensioningcaptosecuretheassembly.
AdjustingtheRearCastorWheels
1.Removethetensioningcapsecuringthegagewheel
tothecuttingunitbrackets(Figure9).
Figure9
1.Rearcastorwheel3.Spacers
2.Tensioningcap4.Thrustwashers
2.Removeoradd”C”shapedspacersatthenarrow
portionofthespindleshaft,belowthecastorarm,
togetthedesiredheight-of-cut.
Note:Ensurethatthethrustwashers,notthe
spacers,contactthetopandbottomofthecastor
arm.
3.Installthetensioningcaptosecuretheassembly.
Note:Ensurethatallfourcastorwheelsaresetat
thesameheight-of-cut.
AdjustingtheRollersand
GageWheel
Note:Ifthecuttingunitistobeusedinthe1inch(25
mm)or1-1/2inches(38mm)height-of-cutsetting,
thecuttingunitrollersmustberepositionedinthetop
bracketholes.
AdjustingtheFrontRoller
1.Removethecapscrewandnutsecuringtheroller
shafttothecuttingunitbracket(Figure10).
Figure10
1.Externalroller2.Rollershaft
2.Slidetheshaftoutofthelowerbracketholes,align
therollerwiththetopholes,andinstalltheshaft.
3.Securetherollershafttothecuttingunitbracket
withthecapscrewandnut.
AdjustingtheFrontGageWheel
1.Removethecapscrewandnutsecuringthegage
wheeltothecuttingunitbrackets(Figure11).
Figure11
1.Gagewheel
2.Aligntherollerandspacerwiththetopholesinthe
bracketsandsecurethemwiththecapscrewandnut.
13

AdjustingtheRear(Internal)Rollers
1.Removethecotterpinssecuringtherollershafts
tothebracketsontheundersideofthedeck
(Figure12).
Figure12
1.Internalrollers
2.Slidetheshaftsoutofthelowerbracketholes,align
therollerswiththetopholes,andinstalltheshafts.
3.Installthecotterpinstosecuretheassemblies.
CheckingtheGearBox
Lubricant
ThegearboxisdesignedtooperateonSAE80-90
wt.gearlube.Althoughthegearboxisshippedwith
lubricantfromthefactory,checkthelevelbefore
operatingthecuttingunit.
1.Positionthemachineandcuttingunitonalevel
surface.
2.Removethedipstick/llplugfromthetopofthe
gearbox(Figure13)andensurethatthelubricantis
betweenthemarksonthedipstick.Ifthelubricant
levelislow,addenoughlubricantuntilthelevelis
betweenthemarks.
Figure13
1.Dipstick/llplug
GreasingtheCuttingUnit
Beforethecuttingunitisoperated,itmustbegreased
toensureproperlubricatingcharacteristics;referto
LubricationSectionofManual.Failuretoproperly
greasethecuttingunitwillresultinprematurefailure
ofcriticalparts.
AdjustingtheWeightTransfer
OnGroundsmaster3280-Dand3320modelsonly,
refertothetractionunitOperator’sManualforthe
proceduretoadjustthecounterbalancepressurefor
bestperformance.
UsingtheGrassDeector
Withoutthegrassdeectormountedinplace,
youandothersareexposedtobladecontact
andthrowndebris.Contactwiththerotating
mowerblade(s)andthrowndebriswillcause
injuryordeath.
•Neverremovethegrassdeectorfrom
themowerbecausethegrassdeector
routesmaterialdowntowardtheturf.Ifthe
grassdeectoriseverdamaged,replaceit
immediately.
•Neverputyourhandsorfeetunderthe
mower.
•Neveroperatethemowerwiththe
deectorremovedfromthecuttingunitor
tied/blockedinaraisedposition.
14

Note:Thedeectorisspringloadedintoitsdownward
normaloperatingposition(Figure14),buttheoperator
cantemporarilyswingitoutofthewaytofacilitate
loadinginatrailerorwhenotherwisenecessary.
Figure14
1.Grassdeector2.Springhinges
15

Maintenance
Lubrication
Thecuttingunitmustbelubricatedregularly.Ifthe
machineisoperatedundernormalconditions,lubricate
thecastorbearingsandbushingswithNo.2general
purposelithiumbasegreaseormolybdenumbasegrease
afterevery8hoursofoperationordaily,whichever
comesrst.Allotherbearings,bushings,andthegear
boxmustbelubricatedafterevery50hoursofoperation.
1.Lubricatethefollowingareas:
•frontcastorspindlebushings(Figure15)
•frontandrearcastorwheelbearings(Figure15)
Figure15
•rightandleftliftarmpivotpins(Figure16)
Figure16
•bladespindlebearings(Figure17)
Figure17
•rightandleftpusharmballjoints(Figure17)
2.Positionthemachineandcuttingunitonalevel
surfaceandlowerthecuttingunit.
3.Removethedipstick/llplugfromthetopofthe
gearbox(Figure18)andensurethatthelubricantis
betweenthemarksonthedipstick.
Note:Ifthelubricantlevelislow,addSAE80-90
wt.gearlubeuntilthelevelisbetweenthemarks.
Figure18
1.Fill/checkplug
SeparatingtheCuttingUnit
fromtheTractionUnit
1.Positionthemachineonalevelsurface.
2.Raisethecuttingunit,engagetheparkingbrake,put
thetractionpedalinneutral,setthePTOleverin
theOffposition,shuttheengineoff,andremove
theignitionkey.
3.Positionthemachineonalevelsurface,lowerthe
cuttingunittotheoor,movetheliftlevertothe
oatposition,shuttheengineoff,andengagethe
parkingbrake.
16

4.Removethecapscrewsandlocknutssecuringtheball
jointmountstothecastorarmsonthecuttingunit
(Figure19).
Figure19
1.Castorarm2.Balljointmount
5.Rollthecuttingunitawayfromthetractionunit,
separatingthemaleandfemalesectionsofthePTO
shaft(Figure20).
IftheengineisstartedandthePTOshaftis
allowedtorotate,seriousinjurycouldresult.
DonotstarttheengineandengagethePTO
leverwhenthePTOshaftisnotconnectedto
thegearboxonthecuttingunit.
Figure20
1.PTOshaft
MountingtheCuttingUnitto
theTractionUnit
1.Positionthemachineonalevelsurfaceandshutthe
engineoff.
2.Movethecuttingunitintopositioninfrontofthe
tractionunit.
3.SlidethemalePTOshaftintothefemalePTOshaft
(Figure20).
4.MovetheliftlevertotheFloatposition.Pushthelift
armsdownuntiltheholesintheballjointmounts
lineupwiththeholesinthecastorarms(Figure19).
5.Securetheballjointmountstothecastorarmswith
thecapscrewsandangenuts.
ServicingtheBushingsinthe
CastorArms
Thecastorarmshavebushingspressedintothetopand
bottomportionofthetubewhich,aftermanyhoursof
operation,willwear.Tocheckthebushings,movethe
castorforkbackandforthandfromsidetoside.Ifthe
castorshaftislooseinsidethebushings,thebushingsare
wornandmustbereplaced.
1.Raisethecuttingunitsothatthewheelsareoffthe
oorandblockitsothatitcannotaccidentallyfall.
2.Removethetensioningcap,spacer(s),andthrust
washerfromthetopofthecastorspindle.
3.Pullthecastorspindleoutofthemountingtube.
Allowthethrustwasherandspacer(s)toremainon
thebottomofthespindle.
4.Insertapinpunchintothetoporbottomofthe
mountingtube,anddrivethebushingoutofthe
tube(Figure21).Also,drivetheotherbushingout
ofthetube.
Figure21
1.Frontcastorarmtube2.Bushings
5.Cleantheinsideofthemountingtubestoremove
anydirt.
6.Applygreasetotheinsideandoutsideofthenew
bushings.
7.Useahammerandatplatetodrivethebushings
intothemountingtube.
8.Inspectthecastorspindleforwear,andreplaceitif
itisdamaged.
17

9.Pushthecastorshaftthroughthebushingsand
mountingtube.
10.Slidethethrustwasherandspacer(s)ontothe
spindle.
11.Installthetensioningcaponthecastorspindleto
retainallofthepartsinplace.
ServicingtheCastorWheels
andBearings
Thecastorwheelrotatesonahigh-qualityrollerbearing
andissupportedbyaspannerbushing.Evenafter
manyhoursofuse,providedthatthebearingwaskept
welllubricated,bearingwearwillbeminimal.However,
failingtokeepthebearinglubricatedwillcauserapid
wear.Awobblycastorwheelusuallyindicatesaworn
bearing.
1.Removethelocknutfromthecapscrewholding
thecastorwheelassemblybetweenthecastorfork
(Figure22).
Figure22
1.Castorwheel4.Spannerbushing
2.Capscrewandlocknut5.Rollerbearing
3.Bushing(2)6.Washer(2)
2.Graspthecastorwheelandslidethecapscrewout
ofthefork.
3.Pullthespannerbushingoutofthewheelhub
(Figure22).
4.Removethebushingfromthewheelhubandallow
thebearingtofallout.
5.Removethebushingfromtheoppositesideofthe
wheelhub.
6.Checkthebearing,spanner,andinsideofthewheel
hubforwear,andreplaceanydamagedparts.
7.Toassemblethecastorwheel,pushthebushinginto
thewheelhub.
8.Slidethebearingintothewheelhub.
9.Pushtheotherbushingintotheopenendofthe
wheelhubtocaptivatethebearinginsidethewheel
hub(Figure22).
10.Carefullyslidethespannerthroughthebushingsand
thewheelhub.
11.Installthecastorwheelassemblybetweenthe
castorforkandsecureitinplacewiththecapscrew,
washers,andlocknut.
12.Lubricatethecastorwheelbearingthroughthe
greasetting,usingNo.2generalpurposelithium
basegrease.
CheckingforaBentBlade
1.Positionthemachineonalevelsurface.
2.Raisethecuttingunit,engagetheparkingbrake,put
thetractionpedalinneutral,thePTOleverinthe
Offposition,shuttheengineoff,andremovethe
ignitionkey.
3.Blockthecuttingunittopreventitfromaccidentally
falling.
4.Rotatethebladeuntiltheendsfaceforwardand
backward.Measurefromtheinsideofthecutting
unittothecuttingedgeatthefrontoftheblade
(Figure23),andrememberthisdimension.
G010549
Figure23
5.Rotatetheoppositeendofthebladeforward.
6.Measurebetweenthecuttingunitandcuttingedge
ofthebladeatthesamepositionasinstep4
Note:Thedifferencebetweenthedimensions
obtainedinsteps4and5mustnotexceed1/8
inch(3mm).Ifthedimensionexceeds1/8inch(3
mm),replacethebladebecauseitisbent;referto
RemovingtheCuttingBlade.
RemovingtheCuttingBlade
Theblademustbereplacedifasolidobjectishit,the
bladeisout-of-balance,worn,orbent.Alwaysuse
18

genuineTororeplacementbladestoensuresafetyand
optimumperformance.Neverusebladesmadebyother
manufacturersbecausetheycouldbedangerous.
Awornordamagedbladecanbreak,anda
pieceofthebladecouldbethrownintothe
operator’sorbystander’sarea,resultingin
seriouspersonalinjuryordeath.
•Inspectthebladeperiodicallyforwearor
damage.
•Donottrytostraightenabladethatisbent.
•Neverweldabrokenorcrackedblade.
•Replaceawornordamagedbladewitha
newTorobladetoensurecontinuedsafety
certicationoftheproduct.
1.Positionthemachineonalevelsurface.
2.Raisethecuttingunit,engagetheparkingbrake,put
thetractionpedalinneutralandthePTOleverin
theOffposition,shuttheengineoff,andremove
theignitionkey.
3.Blockthecuttingunittopreventitfromaccidentally
falling.
4.Grasptheendofthebladeusingaragorthickly
paddedglove.Removethebladebolt,anti-scalpcup,
andbladefromthespindleshaft(Figure24).
G010555
1
2
Figure24
1.Bladebolt2.Anti-scalpcup
5.Installtheblade(withthesailfacingtowardthe
cuttingunit),theanti-scalpcup,andthebladebolt.
Note:Tightenthebladeboltto85-110ft-lb
(115-149N-m).
InspectingandSharpeningthe
Blade
Twoareasmustbeconsideredwhencheckingand
servicingthecuttingblade:thesailandthecuttingedge.
Bothcuttingedgesandthesail,whichistheturnedup
portionoppositethecuttingedge,contributetoagood
quality-of-cut.Thesailisimportantbecauseitpullsgrass
upstraight,therebyproducinganevencut.However,
thesailwillgraduallyweardownduringoperation,and
thisconditionisnormal.Asthesailwearsdown,the
quality-of-cutwilldegradesomewhat,althoughthe
cuttingedgesaresharp.Thecuttingedgeoftheblade
mustbesharpsothatthegrassiscutratherthantorn.
Adullcuttingedgeisevidentwhenthetipsofthegrass
appearbrownandshredded.Sharpenthecuttingedges
tocorrectthiscondition.
1.Positionthemachineonalevelsurface.
2.Raisethecuttingunit,engagetheparkingbrake,put
thetractionpedalinneutralandthePTOleverin
theOffposition,shuttheengineoff,andremove
theignitionkey.
3.Blockthecuttingunittopreventitfromaccidentally
falling.
4.Examinethecuttingendsofthebladecarefully,
especiallywheretheatandcurvedpartsofthe
blademeet(Figure25).
Note:Sincesandandabrasivematerialcanwear
awaythemetalthatconnectstheatandcurved
partsoftheblade,checkthebladebeforeusingthe
machine.Ifyounoticewear(Figure25),replacethe
blade;refertoRemovingtheCuttingBlade.
Figure25
1.Cuttingedge3.Wear/slotforming
2.Curvedarea/sail4.Crack
19

Ifthebladeisallowedtowear,aslotwillform
betweenthesailandatpartoftheblade
(Figure25).Eventually,apieceoftheblade
maybreakoffandbethrownfromunderthe
housing,possiblyresultinginseriousinjuryto
yourselforbystanders.
•Inspectthebladeperiodicallyforwearor
damage.
•Replaceawornordamagedbladewitha
newTorobladetoensurecontinuedsafety
certicationoftheproduct.
5.Examinethecuttingedgesofallblades,andsharpen
thecuttingedgesiftheyaredullornicked.
Note:Sharpenonlythetopsideofthecutting
edgeandmaintaintheoriginalcuttingangleto
ensuresharpness(Figure26).Thebladewillremain
balancedifthesameamountofmetalisremoved
frombothcuttingedges.
Figure26
1.Sharpenatoriginalangle
Note:Removethebladesandsharpenthemona
grinder;refertoRemovingtheCuttingBlades.
6.Installtheblade,theanti-scalpcup,andtheblade
bolt.
Note:Thebladesailsmustbeontopoftheblade.
Note:Tightenthebladeboltto85-110ft-lb
(115-149N-m).
CheckingandCorrecting
MismatchofBlades
Ifonecuttingbladecutslowerthantheothers,correct
themasfollows:
1.Lowerthecuttingunitontoalevelsurface,engage
theparkingbrake,putthetractionpedalinneutral
andthePTOleverintheOffposition,shutthe
engineoff,andremovetheignitionkey.
2.Ensurethatthetirepressureisequalonalltires.
3.Raisetheheight-of-cuttothe4inches(102mm)
position;refertoAdjustingtheHeight-of-Cut.
4.Rotatethebladessothatthetipslineupwithone
another.
Note:Thetipsoftheadjacentbladesmustbe
within1/8inch(3mm)ofeachother.Ifthetipsare
notwithin1/8inch(3mm)ofeachother,proceedto
step10andaddshimsbetweenthespindlehousing
andbottomofthecuttingunit.
5.Ensurethatthefrontheight-of-cutpinsareresting
properlyontheframecushions.Ifthepinsarenot
restingproperly,placeashimorshimsunderthe
cushiontoraiseitforproperalignment.
6.Positionall3bladesintheAposition(Figure27),
andmeasurefromthelevelsurfacetothebottomof
thetipendofeachblade(Figure28),andnotethe
measurement.
G010556
A
B
C
A
B
CA
B
C
Figure27
G010557
1
Figure28
1.Measurefromthebladetiptoalevelsurface.
7.RotatethebladestotheBposition(Figure27),
measurethedistanceofallofthebladestothelevel
surface,andnotethedimensions(Figure28).
8.RotatethebladestotheCposition,measure,
andnotethedistancemeasured(Figure27and
Figure28).
9.Comparethemeasurementsatthevariouspositions.
Note:Alldimensionsmustbeequalwithin1/4inch
(6mm)fromany2adjacentblades.Thedifference
betweenthedimensionsofall3bladesmustnot
exceed3/8inch(10mm).Ifthedifferenceexceeds
specications,proceedtostep10.
10.Removethecapscrews,atwashers,andlocknuts
fromtheouterspindleintheareawheretheshims
mustbeadded.
20