Operator's Manual

ServicingtheBushingsin
theCastorArms
Thecastorarmshavebushingspressedintothetop
andbottomofthetube,andaftermanyhoursof
operation,thebushingswear.
Tocheckthebushings,movethecastorforkback
andforthandfromsidetoside.Ifthecastorspindle
islooseinsidethebushings,thebushingsareworn;
replacethem.
1.Parkthemachineonalevelsurface,lowerthe
cuttingunit,engagetheparkingbrake,shutoff
theengine,andremovethekey.
2.Removethetensioningcap,spacer(s),and
thrustwasherfromthetopofthecastorspindle.
3.Pullthecastorspindleoutofthemountingtube.
Allowthethrustwasherandspacer(s)toremain
onthebottomofthespindle.
4.Insertapinpunchintothetoporbottomofthe
mountingtubeanddrivethebushingoutofthe
tube(Figure22).Also,drivetheotherbushing
outofthetube.Cleantheinsideofthetubes
toremovedirt.
g004737
Figure22
1.Castorarmtube
2.Bushings
5.Applygreasetotheinsideandoutsideofthe
newbushings.Useahammerandatplateto
drivethebushingsintothemountingtube.
6.Inspectthecastorspindleforwearandreplace
itifdamaged.
7.Pushthecastorspindlethroughthebushings
andmountingtube,slidethethrustwasher
andspacer(s)ontothespindle,andinstallthe
tensioningcaponthecastorspindle.
ServicingtheCastor
WheelsandBearings
1.Parkthemachineonalevelsurface,lowerthe
cuttingunit,engagetheparkingbrake,shutoff
theengine,andremovethekey.
2.Removethelocknutfromtheboltholdingthe
castorwheelassemblybetweenthecastorfork
(Figure23).Graspthecastorwheelandslide
theboltoutoftheforkorpivotarm.
3.Removethebearingfromthewheelhuband
allowthebearingspacertofallout(Figure23).
Removethebearingfromtheoppositesideof
thewheelhub.
4.Checkthebearings,spacer,andinsideofthe
wheelhubforwear.Replaceanydamaged
parts.
5.T oassemblethecastorwheel,pushthebearing
intothewheelhub.Wheninstallingthebearings,
pressontheouterraceofthebearing.
g004738
Figure23
1.Castorwheel
3.Bearings
2.Castorfork
4.Bearingspacer
6.Slidethebearingspacerintothewheelhub.
Pushtheotherbearingintotheopenendofthe
wheelhubtocaptivatethebearingspacerinside
thewheelhub.
7.Installthecastorwheelassemblybetweenthe
castorforkandsecureitinplacewiththebolt
andlocknut.
ServicingtheCutting
Blades
BladeSafety
Awornordamagedbladecanbreak,andapieceof
thebladecouldbethrowntowardyouorbystanders,
resultinginseriouspersonalinjuryordeath.
•Inspectthebladeperiodicallyforwearordamage.
•Usecarewhencheckingtheblades.Wrapthe
bladesorweargloves,andusecautionwhen
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