g011561
Figure106
1.Castorarm3.Castorfork
2.Shims
ServicingtheCastorArm
Bushings
Thecastorarmshavebushingspressedintothe
topandbottomofthetubeandaftermanyhours
ofoperation,thebushingswillwear.T ocheckthe
bushings,movethecastorforkbackandforthand
fromsidetoside.Ifthecastorspindleislooseinside
thebushings,thebushingsarewornandmustbe
replaced.
1.Raisethecuttingunitsothatthewheelsare
offoftheoor.Blockthecuttingunitsothatit
cannotaccidentallyfall.
2.Removethetensioningcap,spacer(s),and
thrustwasherfromthetopofthecastorspindle.
3.Pullthecastorspindleoutofthemountingtube.
Allowthethrustwasherandspacer(s)toremain
onthebottomofthespindle.
4.Insertapinpunchintothetoporbottomofthe
mountingtubeanddrivethebushingoutofthe
tube(Figure107).Alsodrivetheotherbushing
outofthetube.Cleantheinsideofthetubes
toremovedirt.
g004737
Figure107
1.Castorarmtube
2.Bushings
5.Applygreasetotheinsideandoutsideofthe
newbushings.Usingahammerandatplate,
drivethebushingsintothemountingtube.
6.Inspectthecastorspindleforwearandreplace
itifitisdamaged.
7.Pushthecastorspindlethroughthebushings
andmountingtube.Slidethethrustwasherand
spacer(s)ontothespindle.Installthetensioning
caponthecastorspindletoretainallpartsin
place.
ServicingtheCastor
WheelsandBearings
ServiceInterval:Every800hours
1.Removethelocknutfromtheboltholdingthe
castorwheelassemblybetweenthecastorfork
(Figure108)orthecastorpivotarm(Figure
109).Graspthecastorwheelandslidethebolt
outoftheforkorpivotarm.
g004738
Figure108
1.Castorbolt
3.Bearing
2.Castorfork
4.Bearingspacer
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