Toro 30881 - Installing the Cutting Units; Servicing the Front Roller

InstallingtheCuttingUnits
1.Movethecuttingunitintopositioninfrontofthe
machine.
2.Slidethecuttingunit-carrierframeontothe
lift-arm-pivotpin(Figure120).Securethe
cuttingunittothepinwiththelynchpin(for
Groundsmaster4500machines)orretainingnut
(forGroundsmaster4700machines).
3.Installthehydraulicmotortothecuttingunit
(Figure119).MakesurethattheO-ringisin
positionandnotdamaged.
4.Greasethespindle.
ServicingtheFrontRoller
Inspectthefrontrollerforwear,excesswobble,or
binding.Serviceorreplacetherollerorcomponentsif
anyoftheseconditionsexist.
DisassemblingtheFrontRoller
1.Removetheroller-mountingbolt(Figure121).
2.Insertapunchthroughtheendoftheroller
housinganddrivetheoppositebearingoutby
alternatingtapstotheoppositesideofinner
bearingrace.Thereshouldbea1.5mm(0.060
inch)lipofinnerraceexposed.
g011356
Figure121
1.Frontroller3.Bearing
2.Mountingbolt4.Bearingspacer
3.Pushthesecondbearingoutinpress.
4.Inspecttherollerhousing,bearings,andbearing
spacerfordamage(Figure121).Replaceany
damagedcomponentsandassemblethem.
AssemblingtheFrontRoller
1.Presstherstbearingintotherollerhousing
(Figure121).Pressontheouterraceonlyor
equallyontheinnerandouterrace.
2.Insertthespacer(Figure121).
3.Pressthesecondbearingintotherollerhousing
(Figure121).Pressingequallyontheinner
andouterraceuntiltheinnerracecontactsthe
spacer.
4.Installtherollerassemblyintothecutting-unit
frame.
5.Verifythatthereisnomorethana1.5mm(0.060
inch)gapbetweenrollerassemblyandtheroller
mountbracketsofthecutting-unitframe.Ifthere
isagapover1.5mm(0.060inch),installenough
5/8-inchdiameterwasherstotakeuptheslop.
Important:Securingtherollerassembly
withagaplargerthan1.5mm(0.060inch)
createsasideloadonthebearingandcan
leadtoprematurebearingfailure
6.Torquethemountingboltto108N∙m(80ft-lb).
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