Operator's Manual

DriveSystem
Maintenance
CheckingtheTirePressure
ServiceInterval:Every50hours/Monthly(whichever
comesrst)
Maintaintheairpressureinthefrontandreartires
(Figure76).Thecorrectairpressureis124kPa(15
psi)inthereartiresand103kPa(25psi)inthecaster
wheels.Uneventirepressurecancauseanuneven
cut.
Note:Checkthetireswhentheyarecoldtogetthe
mostaccuratepressurereading.
g001055
Figure76
ReplacingtheCaster
WheelsandBearings
1.Obtainanewcaster-wheelassembly,cone
bearings,andbearingsealsfromyour
AuthorizedT oroDistributor.
2.Removethelocknutfromthebolt(Figure77).
g004760
Figure77
1.Locknut
6.Spacer
2.Bearingspacer
7.Casterwheel
3.Outerbearingseal
8.Axlebolt
4.Conebearing9.Casterfork
5.Innerbearingseal
3.Graspthecasterwheelandslidetheboltout
oftheforkorpivotarm.
4.Discardtheoldcasterwheelandbearings.
5.Assemblethecasterwheelbypushingthecone
bearingsandseals,packedwithgrease,intothe
wheelhub,positionedasshowninFigure77.
6.Slidethespacerintothewheelhubthrough
thebearings,captivatingthespacerinsidethe
wheelhubwith2bearingspacers.
Important:Ensurethattheseallipsarenot
foldedinward.
7.Installthecaster-wheelassemblybetweenthe
castorforkandsecureitinplacewiththebolt
andlocknut.
8.Tightenthelocknutuntilthewheelnolonger
spinsfreely,thenbackitoffjustuntilthewheel
spinsfreely.
9.Attachagreaseguntothegreasettingonthe
casterwheelandllitwithNo.2lithiumgrease.
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