Toro groundmaster 7210 - Drive System Maintenance

DriveSystem
Maintenance
CheckingtheTirePressure
ServiceInterval:Every50hours
Maintaintheairpressureinthefrontandreartires.
Thecorrectairpressureis124kPa(18psi)inthe
reartiresand172kPa(25psi)inthecasterwheels.
Uneventirepressurecancauseanunevencut.
Checkthetireswhentheyarecoldtogetthemost
accuratepressurereading.
g001055
Figure73
ReplacingtheCaster
WheelsandBearings
1.Obtainanewcasterwheelassembly,cone
bearings,andbearingsealsfromyour
AuthorizedT oroDistributor.
2.Removethelocknutfromtheboltholdingthe
caster-wheelassemblybetweenthecasterfork
(Figure74).
g004760
Figure74
1.Nut
6.Spacer
2.Bearingspacer
7.Casterwheel
3.Outerbearingseal
8.Axlebolt
4.Conebearing9.Casterfork
5.Innerbearingseal
3.Graspthecasterwheel,andslidetheboltout
oftheforkorpivotarm.
4.Discardtheoldcasterwheelandbearings.
5.Assemblethecasterwheelbypushingthecone
bearingsandseals,packedwithgrease,intothe
wheelhub,positionedasshowninFigure74.
6.Slidethespacerintothewheelhubthrough
thebearings,captivatingthespacerinsidethe
wheelhubwith2bearingspacers.
Important:Ensurethattheseallipsarenot
foldedinward.
7.Installthecaster-wheelassemblybetweenthe
castorforkandsecureitinplacewiththebolt
andlocknut.
8.Tightenthenutuntilthewheelnolongerspins
freely,thenbackitoffjustuntilthewheelspins
freely.
9.Attachagreaseguntothegreasetting
onthecasterwheelandllitwithNo.2
general-purpose,lithiumgrease.
58