Toro 30555 User manual

FormNo.3396-526RevA
52inSideDischargeMower
Groundsmaster®200,3320and3280-D
SeriesTractionUnit
ModelNo.30555—SerialNo.315000001andUp
Registeratwww.Toro.com.
OriginalInstructions(EN)*3396-526*A

WARNING
CALIFORNIA
Proposition65Warning
Thisproductcontainsachemicalorchemicals
knowntotheStateofCaliforniatocausecancer,
birthdefects,orreproductiveharm.
Introduction
Thisrotary-bladelawnmowerdeckismountedtoaride-on
machineandisintendedtobeusedbyprofessional,hired
operatorsincommercialapplications.Itisprimarilydesigned
formowinggrassonwell-maintainedlawnsinparks,sports
elds,andoncommercialgrounds.Itisnotdesignedfor
mowingbrush,grassandothergrowthalongsidehighways,
orforagriculturaluses.
Readthisinformationcarefullytolearnhowtooperateand
maintainyourproductproperlyandtoavoidinjuryand
productdamage.Youareresponsibleforoperatingthe
productproperlyandsafely.
YoumaycontactTorodirectlyatwww .Toro.comforproduct
andaccessoryinformation,helpndingadealer,ortoregister
yourproduct.
Wheneveryouneedservice,genuineToroparts,oradditional
information,contactyourTorodealerandhavethemodel
andserialnumbersofyourproductready.Themodeland
serialnumbersarestampedintoaplatelocatedonthecarrier
framebehindtherightfrontcastorwheel.Writethenumbers
inthespaceprovided.
Figure1
1.Modelandserialnumberlocation
ModelNo.
SerialNo.
Thismanualidentiespotentialhazardsandhassafety
messagesidentiedbythesafety-alertsymbol(Figure2),
whichsignalsahazardthatmaycauseseriousinjuryordeath
ifyoudonotfollowtherecommendedprecautions.
Figure2
1.Safety-alertsymbol
Thismanualuses2wordstohighlightinformation.
Importantcallsattentiontospecialmechanicalinformation
andNoteemphasizesgeneralinformationworthyofspecial
attention.
Contents
Safety...........................................................................3
SafeOperatingPractices...........................................3
ToroMowerSafety..................................................3
SafetyandInstructionalDecals.................................4
Setup............................................................................6
1PreparingtheMachine...........................................6
2InstallingtheCarrierFrame....................................7
3InstallingtheMowerDeck....................................10
4InstallingRearWeight...........................................13
ProductOverview.........................................................13
Specications........................................................13
Attachments/Accessories........................................13
Operation....................................................................14
AdjustingtheHeightofCut.....................................14
AdjustingtheRollers...............................................14
CheckingtheGearboxLubricant..............................15
AdjustingWeightTransfer.......................................15
UsingtheGrassDeector.......................................15
Maintenance.................................................................16
LubricatingtheCastors...........................................16
LubricatingtheMowerDeck....................................16
RemovingtheMowerDeck.....................................17
ServicingtheCasterArms.......................................18
ServicingtheCasterWheel......................................18
CheckingforaBentBlade........................................19
RemovingtheCuttingBlade.....................................19
InspectingandSharpeningtheBlade.........................20
CheckingandCorrectingMismatchof
Blades...............................................................20
ReplacingtheGrassDeector..................................21
AdjustingtheIdlerPulley........................................22
ReplacingtheDriveBelt..........................................23
Troubleshooting...........................................................24
©2015—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN554202
Contactusatwww.Toro.com.
PrintedintheUSA
AllRightsReserved

Safety
Improperuseormaintenancebytheoperatoror
ownercanresultininjury.Toreducethepotential
forinjury,complywiththesesafetyinstructionsand
alwayspayattentiontothesafety-alertsymbol,which
meansCaution,Warning,orDanger—personalsafety
instruction.Failuretocomplywiththeinstructionmay
resultinpersonalinjuryordeath.
SafeOperatingPractices
ThefollowinginstructionsareadaptedfromANSI
B71.4-2012.
Training
•ReadtheOperator'sManualandothertrainingmaterial.If
theoperator(s)ormechanic(s)cannotreadEnglishitis
theowner'sresponsibilitytoexplainthismaterialtothem.
•Becomefamiliarwiththesafeoperationoftheequipment,
operatorcontrols,andsafetysigns.
•Alloperatorsandmechanicsshouldbetrained.The
ownerisresponsiblefortrainingtheusers.
•Neverletchildrenoruntrainedpeopleoperateorservice
theequipment.Localregulationsmayrestricttheageof
theoperator.
•Theowner/usercanpreventandisresponsiblefor
accidentsorinjuriesoccurringtopeopleordamageto
property.
ToroMowerSafety
ThefollowinglistcontainssafetyinformationspecictoToro
productsorothersafetyinformationthatyoumustknowthat
isnotincludedintheCEN,ISO,orANSIstandard.
Thisproductiscapableofamputatinghandsandfeetand
throwingobjects.Alwaysfollowallsafetyinstructionsto
avoidseriousinjuryordeath.
Useofthisproductforpurposesotherthanitsintendeduse
couldprovedangeroustouserandbystanders.
•Knowhowtostoptheenginequickly.
•Wearingsafetyshoesandlongpantsisadvisableand
requiredbysomelocalordinancesandinsurance
regulations.
•Handlefuelcarefully.Wipeupanyspills.
•Checkthesafetyinterlockswitchesdailyforproper
operation.Ifaswitchshouldfail,replacetheswitch
beforeoperatingthemachine.
•Usingthemachinedemandsattention.Topreventloss
ofcontrol:
–Donotdriveclosetosandtraps,ditches,creeks,
embankments,orotherhazards.
–Avoidsuddenstartsandstops.
–Yieldtherightofwaywhennearorcrossingroads.
–Lowerthemowerdeckwhengoingdownslopes.
•Thegrassdeectormustalwaysbeinstalledandinthe
lowestpositiononthesidedischargemowerdeck.Never
operatethemowerwithoutthedeectororentiregrass
collector.
•Ifthemowerdeckdischargeareaeverplugs,shutthe
engineoffbeforeremovingtheobstruction.
•Cutgrassslopescarefully.Donotstart,stop,orturn
suddenly.
•Donottouchtheengineormuferwhiletheengineis
runningorsoonafterithasstoppedbecausetheseareas
couldbehotenoughtocauseburns.
MaintenanceandStorage
•Checktheblademountingboltsfrequentlytoensurethat
theyaretightenedtospecication.
•Performonlythosemaintenanceinstructionsdescribed
inthismanual.Ifmajorrepairsareeverneededorif
assistanceisdesired,contactyourToroDistributor.
3

SafetyandInstructionalDecals
Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyareaofpotential
danger.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.
99-5171
93-6697
1.ReadtheOperator's
Manual.
2.AddSAE80w-90(API
GL-5)oilevery50hours.
93-7818
1.Warning—readtheOperator'sManualforinstructionson
torquingthebladebolt/nutto115to149N∙m(85to110
ft-lb).
117–4979
1.Entanglementhazard,belt—stayawayfrommovingparts,
keepallguardsandshieldsinplace.
107-2908
1.Thrownobjecthazard—keepbystandersasafedistance
fromthemachine.
2.Thrownobjecthazard—donotoperatethemowerwiththe
deectoruporremoved,keepthedeectorinplace.
3.Cutting/dismembermenthazardofhandorfoot,mower
blade—stayawayfrommovingparts.
4

105-9551
2WD:GM 228D = 0
GM 225 = 25 kg(55 lbs)
4WD:0
105–9551
1.Warning—readthe
Operator'sManual.
2.Lowerthemowerdeck
whentravelingdown
slopes.GM225unites
require25kg(55lb)of
rearweight.GM228Dand
4wheeldriveunitsdonot
requirerearweight.
93–7819
1.Removetheignitionkeyandreadtheinstructionsbefore
servicingorperformingmaintenance.
2.Heightofcut
107-2915
1.Entanglementhazard,shaft—keepbystandersasafe
distancefromthemachine.
120-6604
1.Thrownobjecthazard—keepbystandersawayfromthe
machine.
2.Cutting/dismembermenthazardofhand,mower
blade—stayawayfrommovingparts,keepallguardsand
shieldsinplace.
3.Cutting/dismembermenthazardoffoot,mowerblade—stay
awayfrommovingparts,keepallguardsandshieldsin
place.
5

Setup
LooseParts
Usethechartbelowtoverifythatallpartshavebeenshipped.
ProcedureDescriptionQty.Use
1Nopartsrequired–Preparethemachinebeforeinstallation.
Carrierframe1
Rightliftarm1
Leftliftarm1
Bolt(1/2x1-1/2inches)2
Spacer4
Pivotpin2
Cotterpin(5/32x1-3/4inches)2
Casterfork2
Casterwheel2
Spanner2
Bolt(1/2x5inches)2
Flatwasher4
Locknut(1/2inch)2
Thrustwasher8
Lynchpin2
Rearcradle2
Cradlespacer2
Bolt(3/8x2inches)6
Flangenut(3/8inch)6
Cushion2
Cushionspacer2
Screw(#10x1inch)4
2
Locknut(#10)4
Installthecarrierframe.
Mowerdeck1
Clevispin4
3Hairpin4
Installthemowerdeck.
4Nopartsrequired–Installrearweight.
DANGER
IfyoustarttheengineandallowthePTOshaftto
rotate,seriousinjurycouldresult.
DonotstarttheengineandengagethePTOlever
whenthePTOshaftisnotconnectedtothegearbox
onthemowerdeck.
Note:Determinetheleftandrightsidesofthemachine
fromthenormaloperatingposition.
Important:Theweighttransferkitmustbeinstalledto
aGroundsmaster200Seriestractionunitwheninstalling
the52inchdeck.
1
PreparingtheMachine
NoPartsRequired
Procedure
1.Movethemachineontoalevelsurface,engagethe
parkingbrake,putthetractionpedalintotheNEUTRAL
position,thePTOleverintotheOFFposition,shutoff
theengine,andremovethekeyfromtheignition.
6

2.Chocktherearwheelstopreventthemachinefrom
movingduringtheinstallation.
3.Loosenthewheelnutsthatsecurethefrontwheelsto
themachine.
4.Usejackstoraisethefrontwheelsofftheoor.
5.Supportthemachinewithjackstandsorblocking.
6.Removethelugnutsandthefrontwheelsfromthe
machine.
2
InstallingtheCarrierFrame
Partsneededforthisprocedure:
1Carrierframe
1Rightliftarm
1Leftliftarm
2Bolt(1/2x1-1/2inches)
4Spacer
2Pivotpin
2Cotterpin(5/32x1-3/4inches)
2Casterfork
2Casterwheel
2Spanner
2Bolt(1/2x5inches)
4Flatwasher
2Locknut(1/2inch)
8Thrustwasher
2Lynchpin
2Rearcradle
2Cradlespacer
6Bolt(3/8x2inches)
6Flangenut(3/8inch)
2Cushion
2Cushionspacer
4Screw(#10x1inch)
4Locknut(#10)
InstallingtheSpacer
1.Installthespacersintothepivotbracket(Figure3).
Figure3
1.Spacer2.Pivotbracket
2.Verifythecutoutfortherollpinonthespaceris
alignedwiththeinsetfortherollpinonthepivot
bracket(Figure4).
Figure4
1.Pivot-arminset2.Spacer
3.Repeatthepreviousstepstotheothersideofthe
machine.
7

InstallingthePivotPin
1.Insertthepivotpinholeoftheliftarmbetweenthe
2spacers(Figure5).
Note:Mounttheliftarmwiththebendpositioned
outward.
Figure5
1.Pivotpin2.Liftarm
2.Insertthepivotpinthroughthespacersandliftarm
(Figure5).
Note:Ensurethattherollpinonthepivotpinis
insertedintotheinsetofthepivotarm.
3.Insertthecotterpinintotheholeinthepivotpin
(Figure6).
Figure6
1.Pivotpin2.Cotterpin
4.Spreadaparttheopenendofthecotterpintosecure
thepivotpin.
5.Repeatthepreviousstepstotheothersideofthe
machine.
ConnectingtheLiftCylinder
1.Removetheouter-cotterpinsecuringthecylinderpin
totheliftcylinder(Figure7).
Figure7
1.Cotterpin3.Liftcylinder
2.Cylinderpin4.Cottonpin
2.Insertthecylinderpinthroughtheliftarmandlift
cylinder(Figure7).
3.Insertthecotterpinintothecylinderpin(Figure7).
Note:Spreadaparttheopenendofbothcotterpins
tosecurethecylinderpin.
4.Repeatthepreviousstepstotheothersideofthe
machine.
ConguringtheBrakeSpring
1.Removethecotterpinfromtheclevispinholdingthe
brakestrutandyoketogether(Figure8).
G010542
1
2
Figure8
1.Brakereturnspring2.Slottedhole
2.Installtheshortendofthespringintotheholeinthe
clevispintoretainthepartstogether.
8

3.Connecttheotherendofthespringstotheslotted
holesintheliftarms.
4.Repeatthepreviousstepstotheothersideofthe
machine.
InstallingtheWheels
1.Installthewheelsyouremovedinanearliersteponto
themachine.
2.Hand-tightenthelugnutstosecurethewheelstothe
machine.
3.Useajacktolowerthefrontendofthemachineto
theground.
4.Torquethelugnutsto103to127N∙m(76to94ft-lb)
intheordershowninFigure9.
Figure9
InstallingtheCarrierFrame
1.Usethebolts(1/2x5inches),atwashers,spanners,
andlocknutstosecurethecasterwheelstothecaster
forks(Figure10).
Figure10
1.Bolt(1/2x5inches)5.Casterfork
2.Flatwasher6.Flatwasher
3.Spanner7.Locknut
4.Casterwheel
2.Usethe4thrustwashersandlynchpinstosecurethe
casterassembliestothecarrierframe(Figure11).
9

Figure11
1.Casterassembly5.Thrustwasher
2.Thrustwasher6.Thrustwasher
3.Thrustwasher7.Lynchpin
4.Carrierframe
Note:GreasethecastorwheelshaftswithNo.2
greaseafterinstallingandafterthersttimeyouuse
themachine.
3.Usethe2bolts(1/2x1-1/2inches)tosecurethe
carrierframetotheliftarms(Figure12).
Figure12
1.Bolt(1/2x1-1/2inches)3.Carrierframe
2.Liftarm
4.Torquetheboltandnutto103to127N∙m(76to94
ft-lb)
5.Usethe3bolts(3/8x2inches),cradlespacers,and
angenutstosecuretherearcradlestotheliftarms
(Figure13).
Figure13
1.Bolt(3/8x2inches)3.Rearcradle
2.Cradlespacer4.Flangenut
6.Torquetheboltandnutto37to45N∙m(27to33ft-lb).
7.Usethe2screws(#10x1inch)andlocknutstosecure
thecushionsandcushionspacerstothecarrierframe
(Figure14).
Figure14
1.Screw(#10x1inch)3.Locknut
2.Cushion
Note:Usethecushionspaceriftheclevispinonthe
mowerdeckdoesnotrestonthecushion.
10

3
InstallingtheMowerDeck
Partsneededforthisprocedure:
1Mowerdeck
4Clevispin
4Hairpin
InstallingtheMowerDeck
1.Raisethecarrierframe(Figure15).
Note:Youmustruntheenginetolowerthecarrier
frameontheGM3280-Dandthe3320models.
2.Movethemowerdeckunderthecarrierframe(Figure
15).
Figure15
1.Mowerdeck2.Carrierframe
3.Lowerthecarrierframeoverthemowerdeck.
Note:Youmustruntheenginetolowerthecarrier
frameontheGM3280-Dandthe3320models.
4.Usethe4clevispinsandhairpinstosecurethemower
decktothecarrierframeatthedesiredheight(Figure
16).
Figure16
1.Hairpin2.Clevispin
Note:Haveanassistantuseablockandlevertoraise
themowerdeckasyouinstalltheclevisandhairpins.
5.Usethefollowingguretoadjusttheheightofcutof
themowerdeck(Figure17).
Figure17
1.25mm(1inch)5.76mm(3inches)
2.38mm(1-1/2inches)6.89mm(3-1/2inches)
3.51mm(2inches)7.102mm(4inches)
4.64mm(2-1/2inches)
6.Usethecushionspaceriftheclevispindoesnotrest
onthecushion(Figure18).
11

Figure18
1.Screw(#10x1inch)3.Cushionspacer
2.Cushion4.Locknut
ConnectingthePowerTake-off
1.RemovethehardwarethatsecuresthePTOassembly
tothetractionunitandsetitasideforlateruse(Figure
19).
Figure19
1.Tractionunit4.Endyolk
2.Locknut5.Bolt(5/16x3inches)
3.Flatwasher
2.RemovethehardwareusedtosecurethePTOguard
tothegearbox(Figure20).
Figure20
1.Bolt(3/8x1/2inch)3.PTOguard
2.Lockwasher
3.Applyanti-seizegreasetotheinsideoftheendyolk
andtothegearbox-splineshaft.
Figure21
1.Splineshaft4.Bolt(5/16x1-3/4inches)
2.Locknut5.PTOguard
3.Rollpin
4.Usethe2bolts(5/16x1-3/4inches),atwashers,
locknuts,androllpintosecuretheendyolktothe
gearbox-splineshaft(Figure21).
Note:The2bolts(5/16x1-3/4inches),atwashers,
locknuts,androllpinarecontainedinthelooseparts
kitthatshippedwiththetractionunit.
5.SlidethePTOguardovertheendyolkandsecureit
withthe2bolt(3/8x1/2inch)andwasher(Figure22).
12

Figure22
1.Bolt(3/8x1/2inch)3.PTOguard
2.Lockwasher
6.Torquetheboltto37to45N∙m(27to33ft-lb).
4
InstallingRearWeight
NoPartsRequired
Procedure
The2wheeldriveGroundsmaster200Series,3280-D,and
3320tractionunitscomplywiththeANSIB71.4-2012
standardwhenequippedwithrearweight.Refertothe
chartinthetractionunitOperator'sManualtodeterminethe
combinationsofweightrequired.Orderthepartsfromyour
ToroDistributor.
The4wheeldriveGroundsmaster200Seriesand3280-D
tractionunitsdonotneedadditionalrearweighttocomply
withtheANSIB71.4-2012standard.
ProductOverview
Specications
Note:Specicationsanddesignaresubjecttochange
withoutnotice.
WidthofCut1314mm(51-3/4inches)
Heightof
Cut
Adjustablefrom25to102mm(1to4inches)in
13mm(1/2inch)increments
NetWeight153kg(338lb)
Attachments/Accessories
AselectionofToroapprovedattachmentsandaccessoriesis
availableforusewiththemachinetoenhanceandexpandits
capabilities.ContactyourToroDistributor.
Tobestprotectyourinvestmentandmaintainoptimal
performanceofyourToroequipment,countonTorogenuine
parts.Whenitcomestoreliability,Torodeliversreplacement
partsdesignedtotheexactengineeringspecicationofour
equipment.Forpeaceofmind,insistonTorogenuineparts.
13

Operation
Determinetheleftandrightsidesofthemachinefromthe
normaloperatingposition.
AdjustingtheHeightofCut
1.Usethefollowingguretodeterminetheholesto
beusedtosettheheightofcutforthemowerdeck
(Figure23).
Figure23
1.25mm(1inch)5.76mm(3inches)
2.38mm(1-1/2inches)6.89mm(3-1/2inches)
3.51mm(2inches)7.102mm(4inches)
4.64mm(2-1/2inches)
2.Useaclevisandhairpintosecureeachsectionofthe
mowerdecktothecarrierframe(Figure24).
Figure24
1.Hairpin2.Clevispin
Note:Haveanassistanttohelpyouraisethemower
deckwhenyouinstalltheclevisandhairpins.
3.Usethecushionspaceriftheclevispindoesnot
contactthecushionattheheightofcut(Figure25).
Figure25
1.Screw(#10x1inch)3.Cushionspacer
2.Cushion4.Locknut
AdjustingtheRollers
Adjusttherearrollersonthemowerdeckiftheheightofcut
issetto25mm(1inch)or38mm(1-1/2inches).
1.Movethemachineontoalevelsurface,engagethe
parkingbrake,shutofftheengine,andremovethekey
fromtheignition.
2.Raisethecutterdecktoaccesstherearrollers.
3.Supportthecarrierframetopreventitfromlowering
duringtheprocedure.
4.Removethecotterpinthatsecurestherollershaftto
thecenterbracket.
Figure26
1.Outerbracket4.Rollershaft
2.Roller5.Centerbracket
3.Cotterpin
5.Pulltheshaftoutofthecenterbracketandthenslideit
outoftheouterbracket.
6.Movetheassemblytotheappropriatelocation.
14

7.Installthecotterpinstosecuretheassembly.
Note:Repeatthepreviousstepstotheremaining
roller.
CheckingtheGearbox
Lubricant
ThegearboxisdesignedtooperateonSAE80-90weightgear
lube.Althoughthegearboxisshippedwithlubricantfromthe
factory,checktheuidlevelbeforeoperatingthemowerdeck.
1.Movethemachineontoalevelsurface,engagethe
parkingbrake,shutofftheengine,andremovethekey
fromtheignition.
2.Removethedipstick/llplugfromthetopofthe
gearbox(Figure27)andensurethatthelubricantis
betweenthemarksonthedipstick.Ifthelubricant
levelislow,addenoughlubricantuntilthelevelis
betweenthemarks.
Figure27
1.Dipstick/llplug
AdjustingWeightTransfer
OnGroundsmaster3280-Dand3320modelsonly,referto
thetractionunitOperator'sManualfortheproceduretoadjust
thecounterbalancepressureforbestperformance.
UsingtheGrassDeector
DANGER
Withoutthegrassdeectormountedinplace,you
andothersareexposedtobladecontactandthrown
debris.Contactwiththerotatingmowerblade(s)
andthrowndebriscancauseinjuryordeath
•Neverremovethegrassdeectorfromthemower
becausethegrassdeectorroutesmaterialdown
towardtheturf.Ifthegrassdeectorisever
damaged,replaceitimmediately.
•Neverputyourhandsorfeetunderthemower.
•Neveroperatethemowerwiththedeector
removedfromthemowerdeckortied/blocked
inaraisedposition.
Thegrassdeectorisspringloadedintoitsdownwardnormal
operatingposition.Itcanalsobemovedoutofthewayto
facilitateloadinginatrailer.
15

Maintenance
Important:Thefastenersonthecoversofthismachine
aredesignedtoremainonthecoverafterremoval.
Loosenallofthefastenersoneachcoverafewturnsso
thatthecoverisloosebutstillattached,thengoback
andloosenthemuntilthecovercomesfree.Thiscan
preventyoufromaccidentallystrippingtheboltsfree
oftheretainers.
LubricatingtheCastors
ServiceInterval:Beforeeachuseordaily
Lubricatethecastorbearingsandbushingswithlithium
greaseormolybdenumgreaseafterevery8hoursofoperation
ordaily,whichevercomesrst.Moreoftenundersevere
conditions.
•Castorspindle(Figure28)
•Castorwheel(Figure28)
Figure28
LubricatingtheMowerDeck
ServiceInterval:Every50hours
Themowerdeckmustbelubricatedregularly.Allother
bearings,bushings,andthegearboxmustbelubricatedafter
every50hoursofoperation.Mayneedmoreoftenunder
severeconditions.
1.Lubricatethefollowingareas:
•Rightandleftlift-armpivotpins(Figure29)
Figure29
•Blade-spindlebearings(Figure30)
Figure30
2.Movethemachineontoalevelsurface,engagethe
parkingbrake,shutofftheengine,andremovethekey
fromtheignition.
Figure31
1.Dipstick/llplug
3.Removethedipstick/llplugfromthetopofthe
gearbox(Figure31)andensurethatthelubricantis
betweenthemarksonthedipstick.Ifthelubricant
levelislow ,addSAE80-90weightgearlubeuntilthe
16

levelisbetweenthemarks.YoumayuseSAE80-90
weightsyntheticgearlubeasanalternative.
RemovingtheMowerDeck
1.Movethemachineontoalevelsurface,engagethe
parkingbrake,lowerthemowerdeck,shutoffthe
engine,andremovetheignitionkey.
2.RemoveandsetasidethehardwaresecuringthePTO
guardtothegearboxandslidetheguardoutoftheway
(Figure22).
3.Removeandsetasidethe2bolts,locknuts,androllpin
securingtheendyolktothegearboxshaft(Figure32).
Figure32
1.Gearboxshaft4.Rollpin
2.Bolt(5/16x1-3/4inch)5.Endyolk
3.Locknut6.PTOguard
4.Removeandsetasidetheclevisandhairpinsthatsecure
themowerdecktothecarrierframe(Figure33).
Note:Haveanassistantuseablockandlevertoraise
themowerdeckasyouremovetheclevisandhairpins.
Figure33
1.Hairpin2.Clevispin
5.Raisethecarrierframe.
Note:Youmustruntheenginetoraisethecarrier
frameontheGM3280-Dandthe3320models.
DANGER
IfyoustarttheengineandallowthePTO
shafttorotate,seriousinjurycouldresult.
DonotstarttheengineandengagethePTO
leverwhenthePTOshaftisnotconnectedto
thegearboxonthemowerdeck.
6.Slidethemowerdeckawayfromthetractionunit.
Note:Thecarrierframemustberemovedifthetractionunit
isusedwithanyotheraccessory.
17

ServicingtheCasterArms
Thecasterarmshavebushingspressedintothetopand
bottomportionofthetube.Wearcanoccurovertime.Check
thewearofthebushingsbymovingthecastorforksideto
side.Replacebothofthebushingsifthecastorforkhasside
tosidemovement.
1.Raisethemowerdecksothatthewheelsareoffthe
groundandblockitsothatitcannotaccidentallyfall.
2.Removethecasterassemblyfromthecarrierframe
(Figure11).
3.Useapinpunchorsimilartooltoremovethebushings
fromthetube(Figure34).
Figure34
1.Tube2.Bushing
4.Cleantheinsideofthetubethoroughly.
5.Lightlygreasetheinsideandoutsideofthereplacement
bushingsbeforeinstallingthemintothetube.
6.Inspectthecastorshaftandreplaceitifitiswornor
damaged.
7.Installthecastorassemblytothecarrierframe(Figure
11).
Important:Whenthebushingsareinstalled,the
insidediametermaycollapseslightly,andthis
maynotallowthecastorshafttobeinstalled.If
thecastorspindledoesnotslidethroughthenew
bushingsandmountingtube,reambothbushings
toaninsidediameterof1.126inches.
ServicingtheCasterWheel
Thecasterwheelrotatesonarollerbearingthatissupported
onaspannerbushing.Wearcanoccurovertime.Frequently
lubricatethecasterbearingandspannerbushingtominimize
theweartotheassembly.
1.Removeandsetasidethelynchpinthatsecuresthe
casterassemblytothecarrierframe(Figure11).
2.Removeandsetasidetheboltandlocknutthatsecure
thecasterwheeltothefork.
Figure35
1.Bolt(1/2x5inches)5.Rollerbearing
2.Flatwasher6.Casterfork
3.Bearingretainer7.Wheelassembly
4.Spannerbushing8.Locknut
3.Removeandsetasidetheatwashers,bearingretainers,
spannerbushings,androllerbearing.
4.Inspectthepartsforwearordamageandreplaceif
necessary.
Note:Youmayneedtowashorwipethepartsto
properlyinspectthemforwearordamage.
5.Assemblethecasterwheelbyinsertingtheroller
bearing,thebearingretainers,andthespannerbushing
(Figure35).
Note:Ensurethattheatfeatureofthebearing
retainerisalignedwiththegreasettinginthewheel
(Figure36).
Figure36
1.Bearingretainer2.Greasetting
6.Continueassemblingthecasterwheelbysecuringthe
atwashersbetweenthewheelassemblyandthefork
withtheboltandlocknut(Figure37).
18

Figure37
1.Bolt(1/2x5inches)4.Wheelassembly
2.Casterfork5.Locknut
3.Flatwasher
7.Applygreasetotherollerbearingthoughthegrease
ttingafterassembly(Figure26).
CheckingforaBentBlade
1.Movethemachineontoalevelsurface,raisethemower
deck,engagetheparkingbrake,putthetractionpedal
intotheNEUTRALposition,thePTOleverintothe
OFFposition,shutofftheengine,andremovethekey
fromtheignition.
2.Disconnectthespark-plugwiresfromthesparkplugs
3.Blockthemowerdecktopreventitfrommoving.
4.Rotatethebladeuntiltheendsfaceforwardand
backward.Measurefromtheinsideofthemowerdeck
tothecuttingedgeatthefrontoftheblade(Figure38).
G010549
Figure38
Note:Savethemeasuredvalueforuseinlatersteps.
5.Rotatetheoppositeendofthebladeforward.Measure
betweenthemowerdeckandcuttingedgeofthe
bladeatthesamepositionasinstep4Thedifference
betweenthedimensionsobtainedinsteps4and5must
notexceed3mm(1/8inch).Ifthedimensionexceeds
3mm(1/8inch),replacethebladebecauseitisbent;
refertoRemovingtheCuttingBlade(page19).
RemovingtheCuttingBlade
Theblademustbereplacedifithitasolidobject,ifit
isout-of-balance,worn,orbent.Alwaysusegenuine
Tororeplacementbladestoensuresafetyandoptimum
performance.Neverusebladesmadebyothermanufacturers
becausetheycouldbedangerous.
DANGER
Awornordamagedbladecanbreak,andapiece
ofthebladecouldbethrownatyouorbystanders,
resultinginseriouspersonalinjuryordeath.
•Inspectthebladeperiodicallyforwearor
damage.
•Donottrytostraightenabladethatisbent.
•Neverweldabrokenorcrackedblade.
•Replaceawornordamagedbladewitha
newTorobladetoensurecontinuedsafety
certicationoftheproduct.
1.Movethemachineontoalevelsurface,raisethemower
deck,engagetheparkingbrake,putthetractionpedal
intotheNEUTRALposition,thePTOleverintothe
OFFposition,shutofftheengine,andremovethekey
fromtheignition.
2.Disconnectthespark-plugwiresfromthesparkplugs
3.Blockthemowerdecktopreventitfrommoving.
4.Grasptheendofthebladeusingaragorthickly
paddedglove.Removethebladebolt,anti-scalpcup,
andbladefromthespindleshaft(Figure39).
G010555
1
2
Figure39
1.Bladebolt2.Anti-scalpcup
5.Installthebladesailfacingtowardthemowerdeckwith
theanti-scalpcupandbladebolt.Tightentheblade
boltto115to149N∙m(85to110ft-lb).
19

InspectingandSharpeningthe
Blade
Whenyoucheckandservicethecuttingblade,consider
especiallythesailandthecuttingedge.Bothcuttingedges
andthesail,whichistheturnedupportionoppositethe
cuttingedge,contributetoagoodqualityofcut.Thesailis
importantbecauseitpullsgrassupwardtoproduceaneven
cut.However,thesailgraduallyweardownduringoperation,
andthisconditionisnormal.Asthesailwearsdown,the
quality-of-cutdegradessomewhat,eventhoughthecutting
edgesaresharp.Thecuttingedgeoftheblademustbe
sharpsothatthegrassiscutratherthantorn.Adullcutting
edgeisevidentwhenthetipsofthegrassappearbrownand
shredded.Sharpenthecuttingedgestocorrectthiscondition.
1.Movethemachineontoalevelsurface,raisethemower
deck,engagetheparkingbrake,putthetractionpedal
intotheNEUTRALposition,thePTOleverintothe
OFFposition,shutofftheengine,andremovethekey
fromtheignition.
2.Disconnectthesparkplugwiresfromthesparkplugs
3.Blockthemowerdecktopreventitfrommoving.
4.Examinethecuttingendsofthebladecarefully,
especiallywheretheatandcurvedpartsoftheblade
meet(Figure40).Sincesandandabrasivematerialcan
wearawaythemetalthatconnectstheatandcurved
partsoftheblade,checkthebladebeforeusingthe
machine.Ifthebladeisworn(Figure40),replacethe
blade;refertoRemovingtheCuttingBlade(page19).
Figure40
1.Cuttingedge3.Wear/slotforming
2.Curvedarea/sail4.Crack
WARNING
Ifthebladeisallowedtowear,aslotcanform
betweenthesailandatpartoftheblade
(Figure40).Eventually,apieceoftheblade
maybreakoffandbethrownfromunderthe
housing,possiblyresultinginseriousinjury
toyouorbystanders.
•Inspectthebladeperiodicallyforwearor
damage.
•Replaceawornordamagedbladewitha
newTorobladetoensurecontinuedsafety
certicationoftheproduct.
5.Examinethecuttingedgesofallblades.Sharpenthe
cuttingedgesiftheyaredullornicked.Sharpenonly
thetopsideofthecuttingedgeandmaintainthe
originalcuttingangletoensuresharpness(Figure41).
Thebladeremainbalancedifthesameamountofmetal
isremovedfrombothcuttingedges.
Figure41
1.Sharpenatoriginalangle
Note:Removethebladesandsharpenthemona
grinder;refertoSafety(page3).Aftersharpeningthe
cuttingedges,installthebladewiththeanti-scalpcup
andbladebolt.Thebladesailsmustbeontopofthe
blade.Tightenthebladeboltto115to149N∙m(85
to110ft-lb).
CheckingandCorrecting
MismatchofBlades
Ifonecuttingbladecutslowerthantheothers,correctthem
asfollows:
1.Lowerthemowerdeckontoalevelsurface,engagethe
parkingbrake,putthetractionpedalintotheNEUTRAL
position,thePTOleverintotheOFFposition,shutoff
theengine,andremovethekeyfromtheignition.
2.Ensurethatthetirepressureinallofthetiresisequal.
3.Raisetheheightofcuttothe102mm(4inches)
position;refertoAdjustingtheHeightofCut(page14).
4.Rotatethebladessothatthetipslineupwith1another.
Thetipsoftheadjacentbladesmustbewithin3mm
(1/8inch)ofeachother.Ifthetipsarenotwithin3
mm(1/8inch)ofeachother,proceedtostep11and
20