Toro 30412 Groundsmaster 4000-D - Servicing the Castor Wheels and Bearings

4.Insertapinpunchintothetoporbottomofthe
mountingtubeanddrivethebushingoutofthetube
(Figure80).Alsodrivetheotherbushingoutofthe
tube.Cleantheinsideofthetubestoremovedirt.
Figure80
1.Castorarmtube
2.Bushings
5.Applygreasetotheinsideandoutsideofthenew
bushings.Usingahammerandatplate,drivethe
bushingsintothemountingtube.
6.Inspectthecastorspindleforwearandreplaceitif
itisdamaged.
7.Pushthecastorspindlethroughthebushingsand
mountingtube.Slidethethrustwasherandspacer(s)
ontothespindle.Installthetensioningcaponthe
castorspindletoretainallpartsinplace.
ServicingtheCastorWheels
andBearings
ServiceInterval:Every800hours
1.Removethelocknutfromtheboltholdingthecastor
wheelassemblybetweenthecastorfork(Figure81)
orthecastorpivotarm(Figure82).Graspthecastor
wheelandslidetheboltoutoftheforkorpivotarm.
Figure81
1.Castorwheel
3.Bearing
2.Castorfork
4.Bearingspacer
Figure82
1.Castorwheel
3.Bearing
2.Castorpivotarm
4.Bearingspacer
2.Removethebearingfromthewheelhuband
allowthebearingspacertofallout(Figure81and
Figure82).Removethebearingfromtheopposite
sideofthewheelhub.
3.Checkthebearings,spacer,andinsideofthewheel
hubforwear.Replaceanydamagedparts.
4.Toassemblethecastorwheel,pushthebearinginto
thewheelhub.Wheninstallingthebearings,press
ontheouterraceofthebearing.
5.Slidethebearingspacerintothewheelhub.Pushthe
otherbearingintotheopenendofthewheelhubto
captivatethebearingspacerinsidethewheelhub.
6.Installthecastorwheelassemblybetweenthecastor
forkandsecureitinplacewiththeboltandlocknut.
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