Toro 30722 Groundsmaster 300 User manual

FormNo.3377-424RevA
72inSideDischargeMower
Groundsmaster®300SeriesTractionUnit
ModelNo.30722—SerialNo.313000001andUp
Registeratwww.Toro.com.
OriginalInstructions(EN)*3377-424*A

ThisproductcomplieswithallrelevantEuropeandirectives,
fordetailspleaseseetheseparateproductspecicDeclaration
ofConformity(DOC)sheet.
Introduction
Thisrotary-bladelawncuttingdeckismountedtoaride-on
machineandisintendedtobeusedbyprofessional,hired
operatorsincommercialapplications.Itisprimarilydesigned
forcuttinggrassonwell-maintainedlawnsinparks,sports
elds,andoncommercialgrounds.Itisnotdesignedfor
cuttingbrush,mowinggrassandothergrowthalongside
highways,orforagriculturaluses.
Readthisinformationcarefullytolearnhowtooperateand
maintainyourproductproperlyandtoavoidinjuryand
productdamage.Youareresponsibleforoperatingthe
productproperlyandsafely.
YoumaycontactTorodirectlyatwww .Toro.comforproduct
andaccessoryinformation,helpndingadealer,ortoregister
yourproduct.
Wheneveryouneedservice,genuineToroparts,oradditional
information,contactanAuthorizedServiceDealerorToro
CustomerServiceandhavethemodelandserialnumbers
ofyourproductready.Themodelandserialnumbersare
stampedintoaplatethatismountedontherearofthemower
deck(justaheadoftheleftrearcastorwheel).Writethe
numbersinthespaceprovided.
ModelNo.
SerialNo.
Thismanualidentiespotentialhazardsandhassafety
messagesidentiedbythesafetyalertsymbol(Figure1),
whichsignalsahazardthatmaycauseseriousinjuryordeath
ifyoudonotfollowtherecommendedprecautions.
Figure1
1.Safetyalertsymbol
Thismanualuses2otherwordstohighlightinformation.
Importantcallsattentiontospecialmechanicalinformation
andNoteemphasizesgeneralinformationworthyofspecial
attention.
Contents
Introduction..................................................................2
Safety...........................................................................3
SafeOperatingPractices...........................................3
ToroMowerSafety..................................................4
SafetyandInstructionalDecals.................................5
Setup............................................................................7
1InstallingtheCastorWheelAssemblies....................8
2LoweringtheGrassDeector.................................8
3InstallingtheBallJointsandConnectingtheLift
Cylinder..............................................................8
4InstallingtheDriveShafttotheTraction
Unit...................................................................9
5ConnectingtheRight-HandPushArmtothe
CuttingUnit.......................................................10
6ConnectingtheLeft-HandPushArmtothe
CuttingUnit.......................................................10
7ConnectingtheDriveShafttotheCuttingUnit
GearBox...........................................................11
8InstallingtheLiftChains.......................................12
9GreasingtheMachine...........................................12
10InstallingRearWeight.........................................12
ProductOverview.........................................................13
Specications........................................................13
Attachments/Accessories........................................13
Operation....................................................................13
CheckingtheLubricantintheGearBox.....................13
AdjustingtheHeight-of-Cut....................................14
AdjustingtheRollers...............................................14
UsingtheGrassDeector.......................................15
OperatingTips......................................................15
Maintenance.................................................................16
RecommendedMaintenanceSchedule(s)......................16
Lubrication............................................................17
SeparatingtheCuttingUnitfromtheTraction
Unit..................................................................17
MountingtheCuttingUnittotheTraction
Unit..................................................................19
ReplacingtheBladeDriveBelts................................19
ServicingtheBushingsintheCastorArms.................19
ServicingtheCastorWheelsandBearings..................20
RemovingandInstallingtheBlade(s).........................20
InspectingandSharpeningtheBlade(s)......................21
CheckingandCorrectingMismatchof
Blades...............................................................22
Troubleshooting...........................................................23
©2013—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN554202
Contactusatwww.Toro.com.
PrintedintheUSA.
AllRightsReserved

Safety
ThismachinemeetsorexceedsCENstandardEN836:1997,
ISOstandard5395:1990,andANSIB71.4-1999specications
ineffectatthetimeofproduction.
Improperuseormaintenancebytheoperatororownercan
resultininjury.Toreducethepotentialforinjury,comply
withthesesafetyinstructionsandalwayspayattentiontothe
safetyalertsymbol(Figure1),whichmeansCaution,Warning,
orDanger—personalsafetyinstruction.Failuretocomply
withtheinstructionmayresultinpersonalinjuryordeath.
SafeOperatingPractices
ThefollowinginstructionsarefromtheCENstandardEN
836:1997,ISOstandard5395:1990,andANSIB71.4-1999.
Training
•ReadtheOperator'sManualandothertrainingmaterial
carefully.Iftheoperatorormechaniccannotreadthe
languageofthismanual,itistheowner'sresponsibilityto
explainthismaterialtothem.
•Becomefamiliarwiththesafeoperationoftheequipment,
operatorcontrols,andsafetysigns.
•Alloperatorsandmechanicsshouldbetrained.The
ownerisresponsiblefortrainingtheusers
•Neverletchildrenoruntrainedpeopleoperateorservice
theequipment.Localregulationsmayrestricttheageof
theoperator.
•Theowner/usercanpreventandisresponsiblefor
accidentsorinjuriesoccurringtohimselforherself,other
people,orproperty.
Preparation
•Evaluatetheterraintodeterminewhataccessoriesand
attachmentsareneededtoproperlyandsafelyperform
thejob.Onlyuseaccessoriesandattachmentsapproved
bythemanufacturer.
•Wearappropriateclothingincludinghardhat,safety
glassesandearprotection.Longhair,looseclothingor
jewelrymaygettangledinmovingparts.
•Inspecttheareawheretheequipmentistobeusedand
removeallobjectssuchasrocks,toysandwirewhichcan
bethrownbythemachine.
•Useextracarewhenhandlinggasolineandotherfuels.
Theyareammableandvaporsareexplosive.
–Useonlyanapprovedcontainer.
–Neverremovefuelcaporaddfuelwithengine
running.Allowenginetocoolbeforerefueling.Do
notsmoke.
–Neverrefuelordrainthemachineindoors.
•Checkthatoperator'spresencecontrols,safetyswitches,
andshieldsareattachedandfunctioningproperly.Donot
operateunlesstheyarefunctioningproperly.
Operation
•Neverrunanengineinanenclosedarea.
•Onlyoperateingoodlight,keepingawayfromholesand
hiddenhazards.
•Besurealldrivesareinneutralandparkingbrakeis
engagedbeforestartingtheengine.Onlystarttheengine
fromtheoperator'sposition.Useseatbeltsifprovided.
•Slowdownanduseextracareonhillsides.Besureto
travelintherecommendeddirectiononhillsides.Turf
conditionscanaffectthemachine'sstability.Usecaution
whileoperatingneardrop-offs.
•Slowdownandusecautionwhenmakingturnsandwhen
changingdirectionsonslopes.
•Neverraisethedeckwiththebladesrunning.
•Neveroperatewithguardsnotsecurelyinplace.Be
sureallinterlocksareattached,adjustedproperly,and
functioningproperly.
•Donotchangetheenginegovernorsettingoroverspeed
theengine.
•Stoponlevelground,lowerthecuttingunits,disengage
drives,engageparkingbrake(ifprovided),shutoffengine
beforeleavingtheoperator'spositionforanyreason.
•Stopequipmentandinspectthebladesafterstriking
objectsorifanabnormalvibrationoccurs.Make
necessaryrepairsbeforeresumingoperations.
•Keephandsandfeetawayfromthecuttingunits.
•Lookbehindanddownbeforebackinguptobesureof
aclearpath.
•Nevercarrypassengersandkeeppetsandbystanders
away.
•Slowdownandusecautionwhenmakingturnsand
crossingroadsandsidewalks.Stopbladesifnotmowing.
•Donotoperatethemowerundertheinuenceofalcohol
ordrugs.
•Lightningcancausesevereinjuryordeath.Iflightning
isseenorthunderisheardinthearea,donotoperate
themachine;seekshelter.
•Usecarewhenloadingorunloadingthemachineintoa
trailerortruck.
•Usecarewhenapproachingblindcorners,shrubs,trees,
orotherobjectsthatmayobscurevision.
•Theoperatorshallturnonashingwarninglights,if
provided,whenevertravelingonapublicroad,except
wheresuchuseisprohibitedbylaw .
MaintenanceandStorage
•Disengagedrives,lowerthecuttingunits,movetraction
pedaltoNeutral,setparkingbrake,stopengineand
removekey.Waitforallmovementtostopbefore
adjusting,cleaningorrepairing.
•Cleangrassanddebrisfromcuttingunits,drives,mufer.
Letenginecoolbeforestoringanddonotstorenear
3

ames,andenginetohelppreventres.Cleanupoilor
fuelspillage.
•Letenginecoolbeforestoringanddonotstorenear
ame.
•Shutofffuelwhilestoringortransporting.Donotstore
fuelnearamesordrainindoors.
•Parkmachineonlevelground.Neverallowuntrained
personneltoservicemachine.
•Usejackstandstosupportcomponentswhenrequired.
•Carefullyreleasepressurefromcomponentswithstored
energy.
•Disconnectbatterybeforemakinganyrepairs.Disconnect
thenegativeterminalrstandthepositivelast.Reconnect
positiverstandnegativelast.
•Usecarewhencheckingblades.Wrapthebladesor
weargloves,andusecautionwhenservicingthem.Only
replaceblades.Neverstraightenorweldthem.
•Keephandsandfeetawayfrommovingparts.Ifpossible,
donotmakeadjustmentswiththeenginerunning.
•Chargebatteriesinanopenwellventilatedarea,away
fromsparkandames.Unplugchargerbeforeconnecting
ordisconnectingfrombattery.Wearprotectiveclothing
anduseinsulatedtools.
•Keepallpartsingoodworkingconditionandallhardware
tightened.Replaceallwornordamageddecals.
ToroMowerSafety
ThefollowinglistcontainssafetyinformationspecictoToro
productsorothersafetyinformationthatyoumustknowthat
isnotincludedintheCEN,ISO,orANSIstandard.
Thisproductiscapableofamputatinghandsandfeetand
throwingobjects.Alwaysfollowallsafetyinstructionsto
avoidseriousinjuryordeath.
Useofthisproductforpurposesotherthanitsintendeduse
couldprovedangeroustouserandbystanders.
•Knowhowtostoptheenginequickly.
•Donotoperatethemachinewhilewearingtennisshoes
orsneakers.
•Wearingsafetyshoesandlongpantsisadvisableand
requiredbysomelocalordinancesandinsurance
regulations.
•Handlefuelcarefully.Wipeupanyspills.
•Checkthesafetyinterlockswitchesdailyforproper
operation.Ifaswitchshouldfail,replacetheswitch
beforeoperatingthemachine.
•Usingthemachinedemandsattention.Topreventloss
ofcontrol:
–Donotdriveclosetosandtraps,ditches,creeks,
embankments,orotherhazards.
–Avoidsuddenstopsandstarts.
–Whennearorcrossingroads,alwaysyieldthe
right-of-way.
–Lowerthecuttingunitwhengoingdownslopes.
•Thegrassdeectormustalwaysbeinstalledandinthe
lowestpositiononthesidedischargecuttingunit.Never
operatethemowerwithoutthedeectororentiregrass
collector.
•Ifthecuttingunitdischargeareaeverplugs,shutthe
engineoffbeforeremovingtheobstruction.
•Cutgrassslopescarefully.Donotstart,stop,orturn
suddenly.
•Donottouchtheengineormuferwhiletheengineis
runningorsoonafterithasstoppedbecausetheseareas
couldbehotenoughtocauseburns.
MaintenanceandStorage
•Checktheblademountingboltsfrequentlytobesurethat
theyaretightenedtospecication.
•Makesurethatallhydrauliclineconnectorsaretightand
allhydraulichosesandlinesareingoodconditionbefore
applyingpressuretothesystem.
•Keepyourbodyandhandsawayfrompinholeleaksor
nozzlesthatejecthydraulicuidunderhighpressure.
Usepaperorcardboard,notyourhands,tosearchfor
leaks.Hydraulicuidescapingunderpressurecanhave
sufcientforcetopenetratetheskinandcauseserious
injury.
•Beforedisconnectingorperforminganyworkonthe
hydraulicsystem,allpressureinthesystemmustbe
relievedbystoppingtheengineandloweringthecutting
unitstotheground.
•Iftheenginemustberunningtoperformamaintenance
adjustment,keephands,feet,clothing,andanypartsof
thebodyawayfromthecuttingunits,attachments,and
anymovingparts.Keepeveryoneaway.
•Donotoverspeedtheenginebychanginggovernor
settings.Toensuresafetyandaccuracy,havean
AuthorizedToroDistributorcheckthemaximumengine
speedwithatachometer.
•Theenginemustbeshutoffbeforecheckingtheoilor
addingoiltothecrankcase.
•Makesurethatthemowerfueltankisemptyifthe
machineistobestoredinexcessof30days.Donotstore
themowernearanyopenameorwheregasolinefumes
maybeignitedbyaspark.
•Performonlythosemaintenanceinstructionsdescribed
inthismanual.Ifmajorrepairsareeverneededor
ifassistanceisdesired,contactanAuthorizedToro
Distributor.
•Tomakesureofoptimumperformanceandcontinued
safetycerticationofthemachine,useonlygenuineToro
replacementpartsandaccessories.Replacementparts
andaccessoriesmadebyothermanufacturerscouldbe
dangerous,andsuchusecouldvoidtheproductwarranty.
4

SafetyandInstructionalDecals
Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyareaofpotential
danger.Replaceanydecalthatisdamagedorlost.
107-2915
1.Entanglementhazard,shaft-keepbystandersasafe
distancefromthemachine.
100-6578
1.Entanglementhazard,belt—donotoperatethemachine
withtheshieldsorguardsremoved;alwayskeeptheshields
andguardsinplace;stayawayfrommovingparts.
93-6697
1.ReadtheOperator's
Manual.
2.AddSAE80w-90(API
GL-5)oilevery50hours.
105-7844
1.Warning—readtheOperator'sManual.
2.Rearwheelweightisrequiredwhenoperatingatwo–wheel
driveGroundsmaster328-DorGoundsmaster345.
107-2908
1.Thrownobjecthazard—keepbystandersasafedistance
fromthemachine.
2.Thrownobjecthazard—donotoperatethemowerwiththe
deectoruporremoved,keepthedeectorinplace.
3.Cutting/dismembermenthazardofhandorfoot,mower
blade—stayawayfrommovingparts.
107-2916
1.Removetheignitionkeyandreadthe
Operator'sManualbeforeservicingor
performingmaintenance.
2.Thrownobjecthazard—donotoperate
themowerwiththedeectorupor
removed,keepthedeectorinplace;
keepbystandersasafedistancefrom
themachine.
3.Cutting/dismembermenthazardof
handorfoot,mowerblade—stayaway
frommovingparts.
5

120-6604
1.Thrownobjecthazard—keepbystandersawayfromthe
machine.
2.Cutting/dismembermenthazardofhand,mower
blade—stayawayfrommovingparts,keepallguardsand
shieldsinplace.
3.Cutting/dismembermenthazardoffoot,mowerblade—stay
awayfrommovingparts,keepallguardsandshieldsin
place.
6

Setup
LooseParts
Usethechartbelowtoverifythatallpartshavebeenshipped.
ProcedureDescriptionQty.Use
Largecastorwheelassembly2
1Smallcastorwheelassembly2Installthecastorwheelassemblies.
2Nopartsrequired–Lowerthegrassdeector
3Nopartsrequired–Installtheballjointsandconnectthelift
cylinder
4Driveshaft1Installthedriveshafttothetractionunit
5Nopartsrequired–Connecttheright-handpusharmtothe
cuttingunit
6Nopartsrequired–Connecttheleft-handpusharmtothe
cuttingunit
Bolt,5/16x1-3/4inches2
Locknut,5/16inches2
7Rollpin,3/16x1-1/2inches2
Connectthedriveshafttothecutting
unitgearbox
8Nopartsrequired–Installtheliftchains
9Nopartsrequired–Greasethemachine.
10Nopartsrequired–Installrearweight
MediaandAdditionalParts
DescriptionQty.Use
PartsCatalog1
Operator'sManual1Reviewthematerialandsaveinanappropriateplace:
DeclarationofConformity1
7

Note:Determinetheleftandrightsidesofthemachine
fromthenormaloperatingposition.
1
InstallingtheCastorWheel
Assemblies
Partsneededforthisprocedure:
2Largecastorwheelassembly
2Smallcastorwheelassembly
Procedure
Thethrustwashers,spacers,andtensioningcapshavebeen
installedonthecastorwheelspindlesforshipping.
1.Removethetensioningcapsfromthespindleshafts
andslideoffthespacersandthrustwashers(Figure2&
Figure3).
Figure2
1.Tensioningcap3.Spacers
2.Thrustwashers4.Large(front)castorspindle
2.Slidethespacersontothecastorspindletogetthe
desiredheight-of-cut;refertotheHeight-of-CutChart
intheAdjustingtheHeightofCutsectioninthis
manual.Slideathrustwasherontothespindle.Push
thelargecastorspindlethroughthefrontcastorarm
andthesmallcastorspindlethroughtherearcastor
arm.Installanotherthrustwasherandtheremaining
spacersontothespindleandinstallthetensioningcap
tosecuretheassembly(Figure2&Figure3).
Important:Thethrustwashers,notthespacers,
mustcontactthetopandbottomofthecastorarm.
5
g021334
Figure3
1.Tensioningcap3.Spacers
2.Thrustwashers4.Small(rear)castorspindle
3.Ensurethatallfourcastorwheelsaresetatthesame
height-of-cut;thenrollthecuttingunitoffofthe
woodenpallet.
2
LoweringtheGrassDeector
NoPartsRequired
Procedure
Removetheshippingbandsallowingthedeectortobe
lowered(Figure4).
1
G021324
Figure4
1.Grassdeector
8

3
InstallingtheBallJointsand
ConnectingtheLiftCylinder
NoPartsRequired
Procedure
Note:Theballjointsareshippedwiththetractionunit.
1.Threadthejamnutfullyontotheright-handballjoint
(Figure5).
2.Screwtheballjointintotheright-handpusharmuntil
thecenteroftheballjointis60mm(2-3/8inches)
awayfromthefrontofthepusharm(Fig.9).Donot
tightenthejamnut.
g021336
Figure5
1.Jamnut3.60mm(2–3/8inch)
2.Balljointmount4.Right-handpusharm
WARNING
Pusharmsarespringloaded.Suddenrelease
ofthepusharmscouldcauseinjury.
Anotherpersonisrequiredtopushthearms
downduringinstallationoftheballjointsor
otherimplements.
3.Haveanotherpersonpushdownontheleftpush
arm.Inserta51x102mm(2x4inch)blockof
woodbetweentheframeandthetopofthepusharm
(Figure6).Screwtheballjointintotheleft-handpush
armuntilthecenteroftheballjointis60mm(2-3/8
inches)awayfromthefrontofthepusharm(Figure6).
Donottightenthejamnut.
Figure6
1.Jamnut4.Balljointmount
2.51x102mm(2x4inch)
blockofwood
5.60mm(2-3/8inches)
3.Left-handpusharm
4.Carefullyremovethe51x102mm(2x4inch)blockof
woodfrombetweentheframeandpusharm.
5.Removethespringpinfromthecylinderpinandslide
thecylinderpinoutofthecylinder.
6.Raisethefrontoftheliftarmuntiltheholeinthe
movableendofthecylinderlinesupwiththeholes
intheliftarmbrackets.Usecautionastheliftarm
isspring-loaded.Holdthepartstogetherwiththe
cylinderpin,springpin,andcotterpin.Thecotterpin
mustbetotheoutside
4
InstallingtheDriveShafttothe
TractionUnit
Partsneededforthisprocedure:
1Driveshaft
Procedure
Slidethesmalleryokeendofthedriveshaftontothetraction
unitPTOshaftwhilealigningthemountingholes(Figure7).
Securethemwitharollpin.Donotinstallthefrontendof
thedriveshaftatthistime.
9

Figure7
1.Driveshaft
5
ConnectingtheRight-Hand
PushArmtotheCuttingUnit
NoPartsRequired
Procedure
WARNING
Theright-handpusharmisspringloadedtoabout
45kg(100lb.).Suddenreleaseofthepusharm
couldcauseinjury.
Anotherpersonisneededtopushthearmdown
duringthisprocedure.
1.RemovethebandssecuringthePTOshafttothe
undersideofthetractionunit.
2.Removethe2self-tappingscrewssecuringthePTO
shieldtothetopofthecuttingunitgearboxmounting
plateandremovetheshield(Figure8).
Figure8
1.PTOshield
3.Movethecuttingunitintopositioninfrontofthe
tractionunit.
4.Haveanotherpersoncarefullypushdownonthepush
armuntiltheholesintheballjointmountlineupwith
theholesinthecastorarm.Immediatelyslidea4x4
inchblockofwoodbetweenthetopofthepusharm
andtheundersideofthechassis.
5.Securetheballjointmounttothecastorarmwith(2)
capscrews(7/16x3inches),atwashers(7/16inches),
andangenuts(7/16inches).Positionthecapscrew
headandtheatwasherstotheoutsideofthecastor
arm.
Figure9
1.Right-handpusharm4.Capscrewsandwashers
2.Castorarm5.Balljoint
3.Balljointmount
6.Tightenthelargejamnutsecuringtheballjointtothe
pusharm(Figure9).Whentighteningthejamnut,hold
theballjointstraighttopermitproperoscillationduring
raisingandloweringofthecuttingunit.Carefully
removethewoodblockholdingthepusharmdown.
10

6
ConnectingtheLeft-Hand
PushArmtotheCuttingUnit
NoPartsRequired
Procedure
WARNING
Theleft-handpusharmisspringloadedtoabout68
kg(150lb.).Suddenreleaseofthepusharmcould
causeinjury.
Anotherpersonisneededtopushthearmdown
duringthisprocedure.
1.Removethe2capscrews,atwashers,andangenuts
securingtheleft-handballjointmounttotheleft-hand
castorarm(Figure10).Removetheballjointmount
andchainbracket.
13
24
5
6
7G021325
Figure10
1.Flangenuts5.Castorarm
2.Balljoint6.Balljointmount
3.Jamnut7.Capscrewsandwashers
4.Left-handpusharm
2.Haveanotherpersoncarefullypushdownonthepush
armuntiltheholesintheballjointmountlineupwith
theholesinthecastorarm.Immediatelyslidea102x
102mm(4x4inch)blockofwoodbetweenthetopof
thepusharmandtheundersideofthechassis.
WARNING
Suddenreleaseofthepusharmcouldcause
injury.
Makesurethatthewoodenblockdoesnot
slipout.
3.Securetheballjointmounttothecastorarmwiththe
capscrews,atwashers,andangenutspreviously
removed.Positionthecapscrewheadsandtheat
washerstotheoutsideofthecastorarm.
4.Tightenthelargejamnutsecuringtheballjointtothe
pusharm.Whentighteningthejamnut,holdtheball
jointstraighttopermitproperoscillationduringraising
andloweringofthecuttingunit.
5.Carefullyremovethewoodblockholdingthepush
armdown.
7
ConnectingtheDriveShaftto
theCuttingUnitGearBox
Partsneededforthisprocedure:
2Bolt,5/16x1-3/4inches
2Locknut,5/16inches
2Rollpin,3/16x1-1/2inches
Procedure
Important:Thedriveshaftyokesmustbeexactlyin
linewitheachotherwhentheouteryokeisinstalledon
thegearboxsplinedPTOshaft.Removethesleeveand
changetheyokepositionifthealignmentisnotcorrect.
Misalignmentofthetwoyokeswillshortenthelifeof
thedriveshaftandcauseunnecessaryvibrationwhen
thecuttingunitisoperated.
1.Lineuptheholesintheyokeandinputshaftofthe
gearbox.Slidetheyokeontotheshaftandsecurethem
togetherwitharollpinand2capscrews(5/16x1-3/4
inches)andlocknuts(5/16inch)(Figure11).
11

Figure11
1.Driveshaftyokes3.Rollpinandcapscrews
2.Yokesinphase
2.MountthePTOshieldtothetopofthecuttingunit
gearboxmountingplatewiththe2self-tappingscrews
previouslyremoved.
8
InstallingtheLiftChains
NoPartsRequired
Procedure
1.Connecttheliftchainstotheliftarmandcutting
unitchainbracketswith6shackles,shacklepins(3/8
x1-1/2inches),andcotterpins(1/8x3/4inch)
(Figure12).Adjustthechainlengthsothatboth
becometightatthesametimewhenliftingtheliftarm.
Figure12
1.Frontleftliftchain3.Rearliftchain
2.Frontrightliftchain
2.Connecttheendsofthetensionspringbetweenthe
fourthlinkoftherearchainandtheeyeofthecotter
pinthatholdsthecylinderpininplace(Figure12).
Adjustthelengthofthechainsothattherearcaster
wheelsareoffofthegroundinthetransportposition
9
GreasingtheMachine
NoPartsRequired
Procedure
Beforeoperatingthemachine,itmustbegreasedtoensure
properlubricatingcharacteristics;refertoGreasingthe
BearingsandBushings.Failuretoproperlygreasethemachine
willresultinprematurefailureofcriticalparts.
10
InstallingRearWeight
NoPartsRequired
Procedure
TwoWheelDriveGroundsmaster300SeriesTractionUnits
complywiththeANSIB71.4-1999andEN836Standards
whenequippedwithrearweight.RefertochartinTraction
UnitOperator'sManualtodeterminethecombinationsof
weightrequired.OrderpartsfromyourlocalAuthorized
ToroDistributor.
FourWheelDriveGroundsmaster300SeriesTractionUnits
donotneedadditionalrearweighttocomplywiththeANSI
B71.4-1999andEN836Standards.
12

ProductOverview
Specications
Note:Specicationsanddesignaresubjecttochange
withoutnotice.
Widthof
Cut
1.816m(71–1/2inches)
Height
ofCut
Adjustablefrom25to102mm(1to4inches)in13
mm(1/2inch)increments
Net
Weight
226kg.(499lb)
Attachments/Accessories
AselectionofToroapprovedattachmentsandaccessoriesis
availableforusewiththemachinetoenhanceandexpand
itscapabilities.ContactyourAuthorizedServiceDealeror
Distributororgotowww .Toro.comforalistofallapproved
attachmentsandaccessories.
Operation
Note:Determinetheleftandrightsidesofthemachine
fromthenormaloperatingposition.
CAUTION
Ifyouleavethekeyintheignitionswitch,someone
couldaccidentlystarttheengineandseriously
injureyouorotherbystanders.
Removethekeyfromtheignitionbeforeyoudoany
maintenance.
CheckingtheLubricantinthe
GearBox
ServiceInterval:Every50hours
ThegearboxindesignedtooperateonSAE80–90wt.gear
lube.Althoughthegearboxisshippedwithlubricantfrom
thefactory,checkthelevelbeforeoperatingthecuttingunit.
1.Positionthemachineandcuttingunitonalevelsurface.
2.Removethedipstick/llplugfromthetopofthegear
box(Figure13)andmakesurethatthelubricantis
betweenthemarksonthedipstick.Ifthelubricant
levelislow ,addenoughlubricantuntilthelevelis
betweenthemarks.
Figure13
1.Dipstick/llplug
13

AdjustingtheHeight-of-Cut
Theheightofcutisadjustablefrom25to102mm(1to
4inches)in13mm(1/2inch)increments,byaddingor
removinganequalnumberofspacersfromthefrontand
rearcastorforks.Theheight-of-cutchartbelowgivesthe
combinationsofspacerstouseforallheight-of-cutsettings.
SpacersBelowCastorArm Height-of-Cut
SettingFrontRear
25mm(1inch)00
38mm(1–1/2
inches)
11
51mm(2inches)22
64mm(2–1/2
inches)
33
76mm(3inches)44
89mm(3–1/2
inches)
55
102mm(4inches)66
Note:Amoreoptimumcuttingappearanceoftheturfcan
beachievedinthelowerheights-of-cutbyloweringtherearof
thecuttingunit.Accomplishthisbyrelocatingtherearcastor
wheelaxlesintheupperholeofthecasterforks(Figure14).
Placetheaxlesintothelowercastorforkholesforhigher
height-of-cutsettingswhereoptimumcuttingappearanceis
notrequired.
Important:Donotattempttocutoffmorethan
25mm(1inch)ofthegrassbladesinthe25mm(1
inch)height-of-cutsettingwiththerearofthecutting
unitlowered,asthismaycausetheenginetolabor
excessively.
1.Starttheengineandraisethecuttingunitsothatthe
frontcasterheight-of-cutcanbechanged.Stopthe
engineafterthecuttingunitisraised.Therearcastor
height-of-cutcanbechangedwiththecuttingunit
lowered.
2.Removethetensioningcapfromthespindleshaft.
Slidethespacersontothecastorspindletogetthe
desiredheight-of-cut(Fig.18and19).Thenslidethe
washer(Figure14)ontothespindle.
3.Pushthecastorspindlethroughthefrontcastorarm,
installtheotherthrustwasherandremainingspacers
ontothespindle,andinstallthetensioningcapto
securetheassembly(Figure14).
Figure14
1.Castorwheel4.Thrustwashers
2.Tensioningcap5.Upperhole
3.Spacers
AdjustingtheRollers
Note:Ifthecuttingunitistobeusedinthe25or38mm
(1or1-1/2inches)height-of-cutsetting,theinternalrollers
mustberepositionedinthetopbracketholes.
1.Removethecotterpinssecuringtherollershaftsto
theundersideofthedeck.
Figure15
1.Internalrollers
2.Slidetheshaftsoutofthelowerbracketholes,alignthe
rollerswiththetopholes,andinstalltheshafts.
3.Installthecotterpinstosecuretheassemblies.
14

UsingtheGrassDeector
DANGER
Withoutthegrassdeectormountedinplace,you
andothersareexposedtobladecontactandthrown
debris.Contactwiththerotatingmowerblade(s)
andthrowndebriswillcauseinjuryordeath.
•Neverremovethegrassdeectorfromthemower
becausethegrassdeectorroutesmaterialdown
towardtheturf.Ifthegrassdeectorisever
damaged,replaceitimmediately.
•Neverputyourhandsorfeetunderthemower.
•Neveroperatethemowerwiththedeector
removedfromthecuttingunitortied/blocked
inaraisedposition.
Note:Thedeectorisspringloadedintoitsdownward
normaloperatingposition,buttheoperatorcantemporarily
swingitoutofthewaytofacilitateloadinginatrailerorwhen
otherwisenecessary.
OperatingTips
Theuseofprotectiveequipment,suchasbutnotlimitedto,
foreyes,ears,feet,andheadisrecommended.
CAUTION
Thismachineproducessoundlevelsinexcessof
85dBAattheoperator'searandcancausehearing
lossthroughextendedperiodsofexposure.Wear
hearingprotectionwhenoperatingthismachine.
Wearhearingprotectionwhenoperatingthis
machine.
Figure16
1.Warning—wearhearingprotection.
MowWhenGrassisDry
Moweitherinthelatemorningtoavoidthedew,whichcauses
grassclumping,orinlateafternoontoavoidthedamage
thatcanbecausedbydirectsunlightonthesensitive,freshly
mowedgrass.
SelecttheProperHeight-of-CutSetting
toSuitConditions
Removeapproximately26mm(1inch)ornomorethan1/3
ofthegrassbladewhencutting.Inexceptionallylushand
densegrassyoumayhavetoraisetheheight-of-cutsetting
anothernotch.
MowinginExtremeConditions
Airisrequiredtocutandrecutgrassclippingsinthemower
housing,sodonotsettheheight-of-cuttoolowortotally
surroundthehousingbyuncutgrass.Alwaystrytohaveone
sideofthemowerhousingfreefromuncutgrass,allowingair
tobedrawnintothehousing.Whenmakinganinitialcut
throughthecenterofanuncutarea,operatethemachine
slowerandbackupifthemowerstartstoclog.
AlwaysMowwithSharpBlades
Asharpbladecutscleanlyandwithouttearingorshredding
thegrassbladeslikeadullblade.Tearingandshredding
causesthegrasstoturnbrownattheedgeswhichimpairs
growthandincreasessusceptibilitytodiseases.Makesurethat
thebladeisingoodconditionandafullsailispresent.
ChecktheConditionoftheDeck
Makesurethatthecuttingchambersareingoodcondition.
Straightenanybendsinthechambercomponentstoensure
correctbladetip/chamberclearance.
AfterOperating
Toensureoptimumperformance,cleantheundersideofthe
mowerhousingaftereachuse.Ifresidueisallowedtobuild
upinthemowerhousing,cuttingperformancewilldecrease.
15

Maintenance
RecommendedMaintenanceSchedule(s)
MaintenanceService
IntervalMaintenanceProcedure
Aftertherst2hours•Tightenthecastorwheelnuts
Aftertherst10hours•Tightenthecastorwheelnuts
•Torquethebladebolts
Beforeeachuseordaily•Lubricatethegreasettings
•Checktheblades
Every50hours
•Checkthegearboxlubricant
•Checkthebladedrivebeltadjustment
•Cleanunderthecuttingunitbeltcovers
•Tightenthecastorwheelnuts
•Torquethebladebolts
Every400hours•Changethegearboxlubricant
CAUTION
Ifyouleavethekeyintheignitionswitch,someonecouldaccidentallystarttheengineandseriously
injureyouorotherbystanders.
Removethekeyfromtheignitionswitchbeforeyoudoanymaintenance.
16

Lubrication
ServiceInterval:Beforeeachuseordaily
Themachinehasgreasettingsthatmustbelubricated
regularlywithNo.2GeneralPurposeLithiumBaseGrease.
Ifthemachineisoperatedundernormalconditions,lubricate
allbearingsandbushingsdailyorimmediatelyafterevery
washing.Thegearboxmustbelubricatedafterevery50
hoursofoperation.
Lubricatethefollowingareas:
•Castorspindlebushings-1each(Figure17)
•Castorwheelbearings-1each(Figure17)
•Bladespindlebearings-2(Figure18)
•Rightandleftpusharmballjoints-1each(Figure19)
Figure17
G021326
Figure18
g021335
Figure19
Positionthemachineandcuttingunitonalevelsurface
andlowerthecuttingunit.Removethedipstick/llplug
fromthetopofthegearbox(Figure20)andmakesure
thatthelubricantisbetweenthemarksonthedipstick.
Ifthelubricantlevelislow,addSAE80-90wt.gearlube
untilthelevelisbetweenthemarks
Figure20
1.Dipstick/llplug
SeparatingtheCuttingUnit
fromtheTractionUnit
1.Positionthemachineonlevelsurface,lowerthecutting
unittotheoor,shuttheengineoffandengagethe
parkingbrake.
2.Removetheself-tappingscrewssecuringtheshieldto
thetopofthecuttingunitandsettheshieldaside.
3.Driveouttherollpinsecuringthedriveshaftyoketo
theinputshaftofthegearbox(Figure21).Loosenthe
capscrewsandlocknutsandslidetheyokeoffofthe
inputshaft.Ifthetractionunitwillbeusedwithout
17

thecuttingunit,drivetherollpinoutoftheyokeat
tractionunitPTOshaftandremovetheentiredrive
shaftfromthetractionunit.
Figure21
1.Driveshaftyokes3.Rollpinandcapscrews
2.Yokesinphase
DANGER
IftheengineisstartedandthePTOshaftis
allowedtorotate,seriousinjurycouldresult.
DonotstarttheengineandengagethePTO
leverwhenthePTOshaftisnotconnectedto
thegearboxonthecuttingunit.
4.Disconnectthespringfromtheliftcylindercotterpin.
Removethecotterpinsandclevispinssecuringthe
liftchainstotheliftarm.
WARNING
Theright-handpusharmisspringloadedto
about45kg(100lb.)andtheleft-handpush
armisspringloadedtoabout150lb.(68kg).
Suddenreleaseofthepusharmcouldcause
injury.
Anotherpersonisneededtopushthearm
downduringthisprocedure.
5.Haveanotherpersonpushdownontherightpush
armwhileyouremovethecapscrews,atwashers,and
locknutssecuringtheballjointmounttothecastor
armonthecuttingunit(Figure22).Nowthehelper
cancarefullyallowthepusharmtomoveupward,
whichwillgraduallyreleasethe45kg(100pounds)of
springload.
Figure22
1.Right-handpusharm4.Capscrewsandwashers
2.Castorarm5.Balljoint
3.Balljointmount6.Jamnut
6.Haveanotherpersonpushdownontheleftpusharm
whileyouremovethecapscrews,atwashers,and
locknutssecuringtheballjointmounttothecastor
armonthecuttingunit(Figure23).Nowthehelper
cancarefullyallowthepusharmtomoveupward,
whichwillgraduallyreleasethe68kg(150pounds)of
springload
13
24
5
6
7G021325
Figure23
1.Flangenuts5.Balljointmount
2.Balljoint6.Capscrewsandwashers
3.Jamnut7.Castorarm
4.Left-handpusharm
7.Rollthecuttingunitawayfromthetractionunit.
18

MountingtheCuttingUnitto
theTractionUnit
1.Positionthemachineonalevelsurfaceandshutthe
engineoff.
2.Movethecuttingunitintopositioninfrontofthe
tractionunit.
WARNING
Theright-handpusharmisspringloadedto
about45kg(100lb.)andtheleft-handpush
armisspringloadedtoabout68kg(150lb.).
Suddenreleaseofthepusharmcouldcause
injury.
Anotherpersonisneededtopushthearm
downduringthisprocedure.
3.Haveanotherpersoncarefullypushdownontheright
pusharmuntiltheholesintheballjointmountlineup
withtheholesinthecastorarm(Figure22).
4.Securetheballjointmounttothecastorarmwiththe
capscrews,atwashers,andangenuts.Positionthe
atwasherstotheoutsideofthecastorarm.
5.Haveanotherpersoncarefullypushdownonthe
leftpusharmuntiltheholesintheballjointmount
lineupwiththeholesinthecastorarm(Figure23).
Immediatelyslidea4x4inchblockofwoodbetween
thetopofthepusharmandtheundersideofthe
chassis.
WARNING
Suddenreleaseofthepusharmcouldcause
injury.
Makesurethatthewoodenblockdoesnot
slipout.
6.Securetheballjointmountandchainbrackettothe
castorarmwiththecapscrews,atwashers,andange
nuts.Positiontheatwasherstotheoutsideofthe
castorarm.Mountthechainbracketintheforward
setofholes.
7.Carefullyremovethewoodblockholdingthepush
armdown.
8.Lineuptheholesintheyokeandinputshaftofthe
gearbox.Slidetheyokeontotheshaftandsecurethem
togetherwitharollpin,2capscrews(5/16x1-3/4
inches),and2locknuts(5/16inches).
ReplacingtheBladeDrive
Belts
1.Lowerthecuttingunittotheshopoor,shutoffthe
engineandengagetheparkingbrake.
2.Removethecoversfromthetopofthecuttingunit
andsetthecoversaside.
3.Loosenidlerpulleystothereleasetensionofthebelts
(Figure24).
4.Removethecarriagebolts,lockwashersandnuts
holdingthegearboxinplace.Liftthegearboxoffthe
mountingplateandlayitontopofthecuttingunit
(Figure24).
1
2
G021323
Figure24
1.Lowerbeltidler2.Flangenut
5.Removethebeltsfromthespindlepulleys.
6.Mountabeltonthelowerpulleygrooveoftheleft
spindle,slidethebeltunderthebeltidlermountplate,
andinstallitaroundthecenterspindlepulley.
7.Tensionthebeltbyleveringtheidlerpulleyagainstthe
beltandtightentheidlerpulleyangenut(Figure24).
8.Placetherightspindlebeltunderthegearboxmount
plateandtheoppositeendontopoftherightspindle
pulley.Placetheleftspindlebeltunderthegearbox
mountplateandtheoppositeendontopoftheleft
spindlepulley.Mountthegearboxandloopthebelts
aroundthegearboxpulley.
9.Feedtherightandleftspindlebeltsoverthepulleys
byrotatingthecutterblades.Tightenthegearbox
mountingfasteners.
10.Tensiontheidlerpulleysagainstbothbelts.
11.Installthecoverstothetopofthecuttingunit.
ServicingtheBushingsinthe
CastorArms
Thecastorarmshavebushingspressedintothetopand
bottomofthetubeandaftermanyhoursofoperation,the
bushingswillwear.Tocheckthebushings,movethecastor
forkbackandforthandfromsidetoside.Ifthecastor
spindleislooseinsidethebushings,thebushingsareworn
andmustbereplaced.
1.Raisethecuttingunitsothatthewheelsareoffof
theoor.Blockthecuttingunitsothatitcannot
accidentallyfall.
19

2.Removethetensioningcapandspacersfromthetop
ofthecastorspindle.
3.Pullthecastorspindleoutofthemountingtube.
Allowthethrustwasherandspacer(s)toremainon
thebottomofthespindle.
4.Insertapinpunchintothetoporbottomofthe
mountingtubeanddrivethebushingoutofthetube
(Figure25).Alsodrivetheotherbushingoutofthe
tube.Cleantheinsideofthetubestoremovedirt.
Figure25
1.Castorarmtube2.Bushings
5.Applygreasetotheinsideandoutsideofthenew
bushings.Usingahammerandatplate,drivethe
bushingsintothemountingtube.
6.Inspectthecastorspindleforwearandreplaceitif
damaged.
7.Pushthecastorspindlethroughthebushingsand
mountingtube.Slidethethrustwasherandspacer(s)
ontothespindle.Installthetensioningcaponthe
castorspindletoretainallpartsinplace.
ServicingtheCastorWheels
andBearings
Therearcastorwheelsrotateonhigh-qualityrollerbearings
whicharesupportedbyspannerbushings.Evenafter
manyhoursofuse,providedthatthebearingwaskept
well-lubricated,bearingwearwillbeminimal.However,
failuretokeepthebearingslubricatedwillcauserapidwear.A
wobblycastorwheelusuallyindicatesawornbearing.
1.Removethecapscrewandlocknutholdingthecastor
wheeland(2)washersbetweenthecastorfork
(Figure26).
2.Pullthespannerbushingoutofthewheelhub
(Figure26).
G021327
1 2 3
4
521
Figure26
1.Washer(2)4.Rollerbearing
2.Bushing(2)5.Spannerbushing
3.Capscrewandlocknut
3.Removethebushingfromthewheelhubandallowthe
bearingtofallout(Figure26).Removethebushing
fromtheoppositesideofthewheelhub.
4.Checkthebearing,spanner,andinsideofthewheel
hubforwear.Replacedamagedparts.
5.Toassemblethecastorwheel,pushthebushinginto
thewheelhub.Slidethebearingintothewheelhub.
Pushtheotherbushingintotheopenendofthewheel
hubtocaptivatethebearinginsidethewheelhub.
6.Carefullyslidethespannerthroughthebushingsand
wheelhub.
7.Installthecastorwheelassemblyand(2)washers
betweenthecastorfork,andsecureallpartsinplace
withthecapscrewandlocknut.
8.Lubricatethecastorwheelbearingthroughthegrease
tting,usingNo.2generalpurposelithiumgrease.
RemovingandInstallingthe
Blade(s)
Theblademustbereplacedifasolidobjectishit,the
bladeisout-of-balance,worn,orbent.Alwaysusegenuine
Tororeplacementbladestoensuresafetyandoptimum
performance.Neverusebladesmadebyothermanufacturers
becausetheycouldbedangerous.
1.Raisethecuttingunittothehighestposition,engage
theparkingbrake,stoptheengine,andremovethe
20