Toro 31335 - Servicing the Bushings in the Castor Arms; Servicing the Castor Wheels and Bearings

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Figure26
1.Castorarmbracket4.Liftarm
2.Hairpincotter5.Thrustwasher
3.Clevispin
ServicingtheBushingsinthe
CastorArms
Thecastorarmshavebushingspressedintothetopand
bottomofthetubeandaftermanyhoursofoperation,the
bushingswillwear.Tocheckthebushings,movethecastor
forkbackandforthandfromsidetoside.Ifthecastor
spindleislooseinsidethebushings,thebushingsareworn
andmustbereplaced.
1.Raisethecuttingunitsothatthewheelsareoffof
theoor.Blockthecuttingunitsothatitcannot
accidentallyfall.
2.Removethetensioningcap,spacer(s),andthrust
washerfromthetopofthecastorspindle.
3.Pullthecastorspindleoutofthemountingtube.
Allowthethrustwasherandspacer(s)toremainon
thebottomofthespindle.
4.Insertapinpunchintothetoporbottomofthe
mountingtubeanddrivethebushingoutofthetube
(Figure27).Alsodrivetheotherbushingoutofthe
tube.Cleantheinsideofthetubestoremovedirt.
Figure27
1.Castorarmtube
2.Bushings
5.Applygreasetotheinsideandoutsideofthenew
bushings.Usingahammerandatplate,drivethe
bushingsintothemountingtube.
6.Inspectthecastorspindleforwearandreplaceitif
damaged.
7.Pushthecastorspindlethroughthebushingsand
mountingtube.Slidethethrustwasherandspacer(s)
ontothespindle.Installthetensioningcaponthe
castorspindletoretainallpartsinplace.
ServicingtheCastorWheels
andBearings
1.Removethelocknutfromtheboltholdingthecastor
wheelassemblybetweenthecastorfork(Figure28).
Graspthecastorwheelandslidetheboltoutofthe
forkorpivotarm.
Figure28
1.Castorwheel3.Bearing(2)
2.Castorfork
4.Bearingspacer
2.Removethebearingfromthewheelhubandallow
thebearingspacertofallout(Figure28).Removethe
bearingfromtheoppositesideofthewheelhub.
3.Checkthebearings,spacer,andinsideofthewheelhub
forwear.Replaceanydamagedparts.
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