Toro 74549 - Caster Maintenance; Caster Pivot Bearing Adjustment; Caster Wheel and Bearing Service

Figure59
AdjustingtheCasterPivot
Bearing
ServiceInterval:Every500hours/Yearly(whichevercomes
rst)
1.Disengagethebladecontrolswitch(PTO),movethe
motioncontrolleverstotheneutrallockedposition
andsettheparkingbrake.
2.Stoptheengine,removethekey,andwaitforallmoving
partstostopbeforeleavingtheoperatingposition.
3.Removethedustcapfromcasterandtightenlocknut
(Figure60).
4.Tightenthelocknutuntilthespringwashersareatand
thenbackoffa1/4turntoproperlysetthepre-loadon
thebearings(Figure60).
Important:Makesurespringwashersare
installedcorrectlyasshowninFigure60.
5.Installthedustcap(
Figure60).
Figure60
1.SpringWashers3.DustCap
2.LockNut
ServicingtheCasterWheel
andBearings
Thecasterwheelsrotateonarollerbearingsupportedbya
spannerbushing.Ifthebearingiskeptwelllubricated,wear
willbeminimal.Failuretokeepthebearingwelllubricated
willcauserapidwear.Awobblycasterwheelusuallyindicates
awornbearing.
1.Removethelocknutandwheelboltholdingthecaster
wheeltothecasterfork(
Figure61).
Figure61
1.Locknut
4.SpannerBushing
2.WheelBolt5.RollerBearing
3.Bushing
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