Toro Groundsmaster 4300-D - Cutting Unit Assembly; Mounting Cutting Units to Traction Unit; Servicing Front Roller

MountingtheCuttingUnits
totheTractionUnit
1.Positionthemachineonalevelsurfaceandturn
thekeyintheswitchtotheOFFposition.
2.Movethecuttingunitintopositioninfrontofthe
tractionunit.
3.Slidethedeck-carrierframeontothelift-arm
pivotpinandsecureitwiththelynchpin(Figure
98).
4.Installthehydraulicmotortothedeck(Figure
97).MakesurethattheO-ringisinpositionand
notdamaged.
5.Greasethespindle.
ServicingtheFrontRoller
Inspectthefrontrollerforwear,excesswobble,or
binding.Serviceorreplacetherollerorcomponentsif
anyoftheseconditionsexist.
DisassemblingtheFrontRoller
1.Removetheroller-mountingbolt(Figure99).
2.Insertapunchthroughtheendoftheroller
housinganddrivetheoppositebearingoutby
alternatingtapstotheoppositesideofinner
bearingrace.Thereshouldbea1.5mm(0.060
inch)lipofinnerraceexposed.
g011356
Figure99
1.Frontroller3.Bearing
2.Mountingbolt4.Bearingspacer
3.Pushthesecondbearingoutinpress.
4.Inspecttherollerhousing,bearings,andbearing
spacerfordamage(Figure99).Replaceany
damagedcomponentsandassemblethem.
AssemblingtheFrontRoller
1.Presstherstbearingintotherollerhousing
(Figure99).Pressontheouterraceonlyor
equallyontheinnerandouterrace.
2.Insertthespacer(Figure99).
3.Pressthesecondbearingintotherollerhousing
(Figure99).Pressingequallyontheinnerand
outerraceuntiltheinnerracecontactsthe
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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