Toro 31598N - Servicing the Castor-Arm Bushings

Figure94
1.Height-of-cutchain3.Nut(2)
2.U-bolt
6.Adjusttheothersetofnutstoraiseorlowertherear
ofthemowerdeckandattainthecorrectmower-deck
pitch.
7.Tightenthejamnuts.
AdjustingtheSide-Mower-DeckPitch
1.Removethetensioningcapfromthecaster-spindle
shaftandslidethespindleoutofthecasterarm(Figure
95).
Figure95
1.Tensioningcap4.Topaxle-mountinghole
2.Spacers5.Casterwheel
3.Shims
2.Positiontheshims,asrequired,toraiseorlowerthe
castorwheeluntilthemowerdeckhasthecorrectpitch.
3.Installthetensioningcap.
ServicingtheCastor-Arm
Bushings
Thecasterarmshavebushingspressedintothetopand
bottomofthetube,andaftermanyhoursofoperation,the
bushingswear.Tocheckthebushings,movethecasterfork
backandforthandfromsidetoside.Ifthecasterspindleis
looseinsidethebushings,thebushingsarewornandmustbe
replaced.
1.Raisethemowerdecksothatthewheelsareoff
theoor.Blockthemowerdecksothatitcannot
accidentallyfall.
2.Removethetensioningcap,spacer(s),andthrust
washerfromthetopofthecastorspindle.
Note:Recordthepositionofthewashersandspacers
beforeremovalsothedeckpitchdoesnothavetobe
adjusted.
3.Pullthecastorspindleoutofthemountingtube.
Allowthethrustwasherandspacer(s)toremainon
thebottomofthespindle.
4.Insertapinpunchintothetoporbottomofthe
mountingtubeanddrivethebushingoutofthetube
(Figure96).
Figure96
1.Castorarmtube
2.Bushings
5.Drivetheotherbushingoutofthetube.
6.Cleantheinsideofthetubestoremovedirt.
7.Applygreasetotheinsideandoutsideofthenew
bushings.
8.Usingahammerandatplate,drivethebushingsinto
themountingtube.
9.Inspectthecastorspindleforwearandreplaceitifit
isdamaged.
10.Pushthecastorspindlethroughthebushingsand
mountingtube.Slidethethrustwasherandspacer(s)
ontothespindle.
11.Installthetensioningcaponthecastorspindletoretain
allpartsinplace.
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