Toro GrandStand 74505 - Adjusting the Caster-Pivot Bearing; Servicing the Caster Wheels and Bearings

AdjustingtheCaster-Pivot
Bearing
ServiceInterval:Every500hours/Yearly(whichevercomes
rst)
1.Disengagetheblade-controlswitch(PTO),movethe
motion-controlleverstotheNEUTRAL-LOCKposition,
andsettheparkingbrake.
2.Shutofftheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Removethedustcapfromthecasterandtightenthe
locknut(Figure53).
4.Tightenthelocknutuntilthespringwashersareat,
andthenbackoffa1/4turntoproperlysetthepreload
onthebearings(Figure53).
Important:Makesurethatthespringwashersare
installedcorrectlyasshowninFigure53.
5.Installthedustcap(Figure53).
Figure53
1.Springwashers
3.Dustcap
2.Locknut
ServicingtheCasterWheels
andBearings
Thecasterwheelsrotateonarollerbearingsupportedbya
spannerbushing.Ifthebearingiskeptwelllubricated,wear
willbeminimal.Failuretokeepthebearingwelllubricated
causesrapidwear.Awobblycasterwheelusuallyindicatesa
wornbearing.
1.Removethelocknutandwheelboltholdingthecaster
wheeltothecasterfork(Figure54).
Figure54
1.Locknut
4.Spannerbushing
2.Wheelbolt5.Rollerbearing
3.Bushing
2.Remove1bushing,thenpullthespannerbushingand
rollerbearingoutofthewheelhub(Figure54).
3.Removetheotherbushingfromthewheelhuband
cleananygreaseanddirtfromthewheelhub(Figure
54).
4.Inspecttherollerbearing,bushings,spannerbushing
andtheinsideofthewheelhubforwear.
Note:Replaceanydamagedorwornparts(Figure54).
5.Place1bushingintothewheelhub(Figure54).
6.Greasetherollerbearingandspannerbushing,and
slidethemintothewheelhub(Figure54).
7.Placethesecondbushingintothewheelhub(Figure
54).
8.Installthecasterwheelintothecasterforkandsecure
itwiththewheelboltandlocknut(Figure54).
9.Tightenthelocknutuntilthespannerbushingbottoms
againsttheinsideofthecasterforks(Figure54).
10.Greasethettingonthecasterwheel.
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