Toro 31970 User manual

CV
FormNo.3440-524RevA
60inor72inSideDischarge
RotaryMower
Groundsmaster®3200or3300Series
TractionUnit
ModelNo.31970—SerialNo.400000000andUp
ModelNo.31972—SerialNo.400000000andUp
Registeratwww.Toro.com.
OriginalInstructions(EN)*3440-524*A

ThisproductcomplieswithallrelevantEuropean
directives,fordetailspleaseseetheseparateproduct
specicDeclarationofConformity(DOC)sheet.
WARNING
CALIFORNIA
Proposition65Warning
Useofthisproductmaycauseexposure
tochemicalsknowntotheStateof
Californiatocausecancer,birthdefects,
orotherreproductiveharm.
Introduction
Thisrotary-bladelawncuttingdeckismounted
toaride-onmachineandisintendedtobeused
byprofessional,hiredoperatorsincommercial
applications.Itisprimarilydesignedforcuttinggrass
onwell-maintainedlawnsinparks,sportselds,
andoncommercialgrounds.Usingthisproductfor
purposesotherthanitsintendedusecouldprove
dangeroustoyouandbystanders.
Readthisinformationcarefullytolearnhowtooperate
andmaintainyourproductproperlyandtoavoid
injuryandproductdamage.Youareresponsiblefor
operatingtheproductproperlyandsafely.
Visitwww.T oro.comforproductsafetyandoperation
trainingmaterials,accessoryinformation,helpnding
adealer,ortoregisteryourproduct.
Wheneveryouneedservice,genuineToroparts,or
additionalinformation,contactanAuthorizedService
DealerorToroCustomerServiceandhavethemodel
andserialnumbersofyourproductready.Figure1
identiesthelocationofthemodelandserialnumbers
ontheproduct.Writethenumbersinthespace
provided.
Important:Withyourmobiledevice,youcan
scantheQRcodeontheserialnumberdecal(if
equipped)toaccesswarranty,parts,andother
productinformation.
g294594
Figure1
1.Modelandserialnumberlocation
ModelNo.
SerialNo.
Thismanualidentiespotentialhazardsandhas
safetymessagesidentiedbythesafety-alertsymbol
(Figure2),whichsignalsahazardthatmaycause
seriousinjuryordeathifyoudonotfollowthe
recommendedprecautions.
g000502
Figure2
1.Safety-alertsymbol
Thismanualuses2wordstohighlightinformation.
Importantcallsattentiontospecialmechanical
informationandNoteemphasizesgeneralinformation
worthyofspecialattention.
©2020—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN554202
Contactusatwww.Toro.com.
PrintedintheUSA.
AllRightsReserved

Contents
Safety.......................................................................3
GeneralSafety...................................................3
CuttingUnitSafety..............................................3
SafetyandInstructionalDecals..........................4
Setup........................................................................8
1PreparingtheMachine.....................................9
2InstallingtheCEKit..........................................9
3InstallingtheCuttingUnittotheTraction
Unit.................................................................9
4InstallingthePTOCover................................10
5LevelingtheCuttingUnit................................10
6GreasingtheMachine.....................................11
ProductOverview....................................................11
Specications...................................................11
Attachments/Accessories..................................11
Operation................................................................12
AdjustingtheHeightofCut...............................12
AdjustingtheCutting-UnitPitch........................13
AdjustingtheAnti-ScalpRollers........................14
AdjustingtheSkid.............................................14
AdjustingtheFlowBafe..................................15
PositioningtheFlowBafe................................15
CorrectingaCuttingUnitMismatch...................15
UsingtheSideDischarge.................................16
OperatingTips.................................................16
Maintenance...........................................................17
RecommendedMaintenanceSchedule(s)...........17
DailyMaintenanceChecklist.............................17
GreasingtheBearingsandBushings................18
CheckingtheLubricantintheGearbox..............19
CheckingtheTorqueofthePTO
Driveshaft-to-GearboxFasteners..................19
RemovingtheCuttingUnitfromtheTraction
Unit...............................................................19
ServicingtheBushingsintheCastor
Arms.............................................................20
ServicingtheCastorWheelsand
Bearings........................................................20
ServicingtheCuttingBlades.............................21
CheckingandCorrectingMismatchof
Blades...........................................................23
ReplacingtheDriveBelt...................................23
ReplacingtheGrassDeector..........................24
CleaningUndertheCuttingUnit........................24
Storage...................................................................25
Safety
Thismachinehasbeendesignedinaccordancewith
ANSIB71.4-2017andwithENISO5395whenyou
completethesetupproceduresandinstalltheCEkit,
pertheDeclarationofConformity.
GeneralSafety
Thisproductiscapableofamputatinghandsand
feetandofthrowingobjects.Alwaysfollowallsafety
instructionstoavoidseriouspersonalinjury
•Readandunderstandthecontentsofthis
Operator’sManualbeforestartingthemachine.
•Useyourfullattentionwhileoperatingthe
machine.Donotengageinanyactivitythat
causesdistractions;otherwise,injuryorproperty
damagemayoccur.
•Donotputyourhandsorfeetnearmoving
componentsofthemachine.
•Donotoperatethemachinewithoutallguards
andothersafetyprotectivedevicesinplaceand
functioningproperlyonthemachine.
•Keepclearofanydischargeopening.
•Keepbystandersandchildrenoutoftheoperating
area.Neverallowchildrentooperatethemachine.
•Beforeyouleavetheoperator’sposition,dothe
following:
–Parkthemachineonalevelsurface.
–Lowerthecuttingunit(s).
–Disengagethedrives.
–Engagetheparkingbrake(ifequipped).
–Shutofftheengineandremovethekey.
–Waitforallmovementtostop.
Improperlyusingormaintainingthismachinecan
resultininjury.Toreducethepotentialforinjury,
complywiththesesafetyinstructionsandalways
payattentiontothesafety-alertsymbol,which
meansCaution,Warning,orDanger—personalsafety
instruction.Failuretocomplywiththeseinstructions
mayresultinpersonalinjuryordeath.
CuttingUnitSafety
•Thecuttingunitisonlyacompletemachinewhen
installedonatractionunit.Readthetraction
unitOperator’sManualcarefullyforcomplete
instructionsonthesafeuseofthemachine.
•Stopthemachine,removethekey,andwaitfor
allmovingpartstostopbeforeinspectingthe
attachmentafterstrikinganobjectorifthereis
anabnormalvibrationinthemachine.Makeall
necessaryrepairsbeforeresumingoperation.
3

•Keepallpartsingoodworkingconditionandall
hardwaretightened.Replaceallwornordamaged
decals.
•Useonlyaccessories,attachments,and
replacementpartsapprovedbyToro.
SafetyandInstructionalDecals
Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyarea
ofpotentialdanger.Replaceanydecalthatisdamagedormissing.
decal93-6697
93-6697
1.ReadtheOperator's
Manual.
2.AddSAE80w-90(API
GL-5)oilevery50hours.
decal93-7818
93-7818
1.Warning—readtheOperator'sManualforinstructionson
torquingthebladebolt/nutto115to149N∙m(85to110
ft-lb).
decal117-4979
117–4979
1.Entanglementhazard,belt—stayawayfrommovingparts,
keepallguardsandshieldsinplace.
decal120-6604
120-6604
1.Thrownobjecthazard—keepbystandersawayfromthe
machine.
2.Cutting/dismembermenthazardofhand,mower
blade—stayawayfrommovingparts,keepallguardsand
shieldsinplace.
3.Cutting/dismembermenthazardoffoot,mowerblade—stay
awayfrommovingparts,keepallguardsandshieldsin
place.
4

decal127-0326
127-0326
1.ReadtheOperator's
Manual.
3.Removethekeyand
readtheOperator's
Manualbeforeperforming
maintenance.
2.Heightofcut
decal131-1180
131-1180
1.ReadtheOperator's
Manual.
3.Baggingsetting
2.Short,lightgrass;dry
conditions
4.Tall,densegrass;wet
conditions
decal133-8061
133-8061
decal137-5945
137-5945
1.Heightofcut(inches/millimeters)
decal137-5946
137-5946
1.Heightofcut(inches/millimeters)
decal137-5947
137-5947
1.Heightofcut(inches/millimeters)
5

decal137-5948
137-5948
1.Heightofcut(inches/millimeters)
decal138-7359
138-7359
1.Greaseevery50hours.2.Beltrouting
decal139-6303
139-6303
1.Entanglementhazard—readtheOperator’sManual;stay
awayfrommovingparts;keepallguardsandshieldsin
place.
decal140-3073
140-3073
1.Thrownobject
hazard—keepbystanders
away.
3.Cutting/dismemberment
hazardofhandorfoot,
mowerblade—stayaway
frommovingparts.
2.Thrownobject
hazard—keepthe
deectorinplace;do
notoperatethemachine
withoutthedeector.
4.Entanglementhazardof
hand,belt—stayaway
frommovingparts;keep
allguardsandshieldsin
place.
6

decal137-5949
137-5949
1.Heightofcut2.Mountingholes
7

Setup
LooseParts
Usethechartbelowtoverifythatallpartshavebeenshipped.
ProcedureDescriptionQty.Use
1Nopartsrequired–Preparethemachine.
2Nopartsrequired–InstalltheCEkit(ifrequired).
Hex-headbolt2
Washer2
3Height-of-cutpin2
Installthecuttingunittothetractionunit.
Shoulderbolt2
4Spacer2InstallthePTOcover.
5Nopartsrequired–Levelthecuttingunit.
6Nopartsrequired–Greasethemachine.
WARNING
Ifyouleavethekeyintheswitch,someonecouldaccidentallystarttheengineandseriously
injureyouorotherbystanders.
Removethekeyfromtheswitchbeforeyouinstallthecuttingunit
DANGER
IftheengineisstartedandthePTOshaftisallowedtorotate,seriousinjurycouldresult.
DonotstarttheengineandengagethePTOswitchwhenthePTOshaftisnotconnected
tothegearboxonthecuttingunit.
Note:Determinetheleftandrightsidesofthemachinefromthenormaloperatingposition.
8

1
PreparingtheMachine
NoPartsRequired
Procedure
1.Parkthemachineonalevelsurface.
2.Engagetheparkingbrake.
3.Shutofftheengineandremovethekey.
2
InstallingtheCEKit
IfRequired(CE-Compliant
CountriesOnly)
NoPartsRequired
Procedure
Ifyouusethismachineinacountrythatcomplies
toCEstandards,installtheCEKit;refertothekit
InstallationInstructions.
3
InstallingtheCuttingUnit
totheTractionUnit
Partsneededforthisprocedure:
2Hex-headbolt
2Washer
2Height-of-cutpin
Procedure
1.Parkthemachineonalevelsurface,move
theliftarmstothelowestposition,engagethe
parkingbrake,shutofftheengine,andremove
thekey.
2.Positionthecuttingunitinfrontofthetraction
unit.
3.SlidethePTO-shaftyokeontothegearboxshaft
andsecuretheshaftstogetherwith2boltsand
nutsinoppositedirections(Figure3).
g299646
Figure3
1.Gearbox3.Boltsandnuts
2.PTOshaft
4.Tightentheboltsandnuts(Figure3).
5.Pushaliftarmdownuntiltheholesintheliftarm
lineupwiththeholesinthecastorarms,then
insertawasherandboltthroughbotharms.
6.Alignthelift-armholeswiththecastor-armholes.
7.Use2hex-headboltsand2washerstosecure
thecastorarmstotheliftarms(Figure4).
9

Ifyouhavepreviouslyusedtheboltsto
installthecuttingunit:Applythread-locking
compoundtothethreadsofthebolts.
g296376
Figure4
1.Liftarm3.Washer
2.Castorarm4.Bolt
8.Torquetheboltstotheappropriatespecication:
•Ifyouareusingtheboltstoinstallthecutting
unitforthersttime:
Torquetheboltsto256to313N∙m(189to
231ft-lb).
•Ifyouhavepreviouslyusedtheboltsto
installthecuttingunit:
Torquetheboltsto195to239N∙m(144to
176ft-lb).
9.Settheheightofcut;refertoAdjustingthe
HeightofCut(page12).
4
InstallingthePTOCover
Partsneededforthisprocedure:
2Shoulderbolt
2Spacer
Procedure
Use2shoulderboltsand2spacerstosecurethePTO
covertothegearbox(Figure5).
g296657
Figure5
1.Shoulderbolt3.PTOcover
2.Spacer
5
LevelingtheCuttingUnit
NoPartsRequired
Procedure
Note:Performthisprocedureonaat,levelsurface.
1.Rotatethebladeoneachouterspindleuntilthe
endsfaceforwardandbackward.
2.Measurefromtheoortothefronttipofthe
blade.
3.RaisethecuttingunittotheTRANSPORTposition.
4.Adjusttheshimsonthefrontcasterforksto
matchthedesiredheightofcut.
5.Rotatetheblades180°andmeasurefromthe
oortotherear-facingtipoftheblade.
6.Loosenthelowerjamnutsontheheight-of-cut
chainU-bolt(Figure6).
10