Figure17
1.Bushings
2.Castorarmtube
5.Applygreasetotheinsideandoutsideofthenew
bushings.Usingahammerandatplate,drivethe
bushingsintothemountingtube.
6.Inspectthecastorspindleforwearandreplaceitifit
isdamaged
7.Pushthecastorspindlethroughthebushingsand
mountingtube.Slidethethrustwasherandspaceronto
thespindle.Installthetensioningcaponthecastor
spindletoretainallpartsinplace.
ServicingtheCastorWheels
andBearings
1.Removethelocknutfromtheboltholdingthecastor
wheelassemblyandwashersbetweenthecastorfork
(Figure18).Graspthecastorwheelandslidethebolt
outofthefork.Removethetirespannerfrominside
thewheelassembly.
Figure18
1.Locknut
4.Castorfork
2.Washer
5.Castorwheel
3.Tirespanner6.Bolt
2.Removeoneoftheouterbearingsfromthewheelhub
andallowtheinnerbearingtofallout(Figure19).
Removethebearingfromtheoppositesideofthe
wheelhub.
Figure19
1.Bearing(outer)3.Bearing(inner)
2.Wheelassembly
3.Checkthebearings(innerandouter),tirespanner,and
insideofthewheelhubforwear.Replaceanydamaged
parts.
4.Toassemblethecastorwheel,pushaouterbearinginto
thewheelhub.Wheninstallingthebearings,presson
theouterraceofthebearing.
5.Slidetheinnerbearingintothewheelhub.Pushthe
otherbearingintotheopenendofthewheelhubto
captivatethebearingspacerinsidethewheelhub.
6.Insertthetirespannerintothewheelassembly.
7.Installthecastorwheelassemblyandwashersbetween
thecastorforkandsecureitinplacewiththeboltand
locknut.
15