Operator's Manual

andthecastorarmbracket(Figure24).Insert
endofcotterpinintotheslotinthecastorarm
tabtoretaincotterpin.
6.Repeattheprocedureontheoppositeliftarm.
7.Startthetractionunitandraisethecuttingunit.
8.Pushdownontherearofthecuttingunitand
inserttheheightofcutrodsthroughtheliftarm
pads.
9.Installtheheight-of-cutcollarsontothe
height-of-cutrodsandsecurewiththeclevis
pinsandhairpincotters(Figure24).
Positiontheheadoftheclevispintowardthe
frontofthedeck.
10.Installabolt(1/2x3/4inch)andawashertothe
topofeachheight-of-cutrod(Figure24).
ServicingtheBushingsin
theCastorArms
Thecastorarmshavebushingspressedintothe
topandbottomofthetube,andaftermanyhours
ofoperation,thebushingswillwear.Tocheckthe
bushings,movethecastorforkbackandforthand
fromsidetoside.Ifthecastorspindleislooseinside
thebushings,thebushingsarewornandmustbe
replaced.
1.Raisethecuttingunitsothatthewheelsare
offoftheoor.Blockthecuttingunitsothatit
cannotaccidentallyfall.
2.Removethetensioningcap,spacer(s),and
thrustwasherfromthetopofthecastorspindle.
3.Pullthecastorspindleoutofthemountingtube.
Allowthethrustwasherandspacer(s)toremain
onthebottomofthespindle.
4.Insertapinpunchintothetoporbottomofthe
mountingtubeanddrivethebushingoutofthe
tube(Figure25).Also,drivetheotherbushing
outofthetube.Cleantheinsideofthetubes
toremovedirt.
g004737
Figure25
1.Castorarmtube
2.Bushings
5.Applygreasetotheinsideandoutsideofthe
newbushings.Usingahammerandatplate,
drivethebushingsintothemountingtube.
6.Inspectthecastorspindleforwearandreplace
itifdamaged.
7.Pushthecastorspindlethroughthebushings
andmountingtube,slidethethrustwasher
andspacer(s)ontothespindle,andinstallthe
tensioningcaponthecastorspindle.
ServicingtheCastor
WheelsandBearings
1.Removethelocknutfromtheboltholdingthe
castorwheelassemblybetweenthecastorfork
(Figure26).Graspthecastorwheelandslide
theboltoutoftheforkorpivotarm.
g004738
Figure26
1.Castorwheel3.Bearing(2)
2.Castorfork
4.Bearingspacer
2.Removethebearingfromthewheelhuband
allowthebearingspacertofallout(Figure26).
Removethebearingfromtheoppositesideof
thewheelhub.
3.Checkthebearings,spacer,andinsideofthe
wheelhubforwear.Replaceanydamaged
parts.
4.Toassemblethecastorwheel,pushthebearing
intothewheelhub.Wheninstallingthebearings,
pressontheouterraceofthebearing.
5.Slidethebearingspacerintothewheelhub.
Pushtheotherbearingintotheopenendofthe
wheelhubtocaptivatethebearingspacerinside
thewheelhub.
6.Installthecastorwheelassemblybetweenthe
castorforkandsecureitinplacewiththebolt
andlocknut.
19