Toro 30645 - Servicing the Bushings in the Castor Arms; Servicing the Castor Wheels and Bearings

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Figure23
1.Liftarm
6.Pin
2.Castor-armbracket
7.Hairpincotter
3.Height-of-cutrod8.Height-of-cutcollar
4.Lift-armpads9.Clevispin
5.Thrustwashers10.Hairpincotter
6.Securetheliftarmtothecastorarmwith2thrust
washers,aclevispin,andahair-pincotter.
7.Positionthethrustwashersbetweentheliftarmand
thecastor-armbracket(Figure23).
8.Inserttheendofthehairpincotterintotheslotinthe
castor-armbrackettoretainthepin.
9.Repeattheprocedureontheotherliftarm.
10.Startthetractionunitandraisethecuttingunit.
11.Workingontherightside,pushdownontherear
ofthecuttingunitandinserttheheight-of-cutrods
throughthelift-armpads.
12.Repeatstep11ontheleftside,takingcarenottoallow
therightsideheight-of-cutrodtofallout.
13.Installtheheight-of-cutcollarsontotheheight-of-cut
rodsandsecurewiththeclevispinsandhair-pincotters
(Figure23).
Note:Theheadoftheclevispinmustbepositioned
towardthefrontofthedeck.
ServicingtheBushingsinthe
CastorArms
Thecastorarmshavebushingspressedintothetopand
bottomofthetubeandaftermanyhoursofoperation,the
bushingswillwear.Tocheckthebushings,movethecastor
forkbackandforthandfromsidetoside.Ifthecastor
spindleislooseinsidethebushings,thebushingsareworn;
replacethemasfollows:
1.Raisethecuttingunitsothatthewheelsareoffof
theoor.Latchthecuttingunitsothatitcannot
accidentallyfall.
2.Removethetensioningcap,spacer(s),andthrust
washerfromthetopofthecastorspindle.
3.Pullthecastorspindleoutofthemountingtube.
Allowthethrustwasherandspacer(s)toremainon
thebottomofthespindle.
4.Insertapinpunchintothetoporbottomofthe
mountingtubeanddrivethebushingoutofthetube
(Figure24).
5.Drivetheotherbushingoutofthetube.Cleanthe
insideofthetubestoremovedirt.
Figure24
1.Castor-armtube
2.Bushings
6.Applygreasetotheinsideandoutsideofthenew
bushings.Usingahammerandatplate,drivethe
bushingsintothemountingtube.
7.Inspectthecastorspindleforwearandreplaceitif
damaged.
8.Pushthecastorspindlethroughthebushingsand
mountingtube.Slidethethrustwasherandspacer(s)
ontothespindle.Installthetensioningcaponthe
castorspindletoretainallpartsinplace.
ServicingtheCastorWheels
andBearings
1.Removethelocknutfromtheboltholdingthecastor
wheelassemblybetweenthecastorfork(Figure25).
Graspthecastorwheelandslidetheboltoutofthe
forkorpivotarm.
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