Toro Groundsmaster 7210 Series - Replacing the Caster Wheels and Bearings; Cooling System Maintenance; Cooling System Safety; Checking the Cooling System

ReplacingtheCaster
WheelsandBearings
1.Obtainanewcaster-wheelassembly,cone
bearings,andbearingsealsfromyour
AuthorizedT oroDistributor.
2.Removethelocknutfromthebolt(Figure77).
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Figure77
1.Locknut
6.Spacer
2.Bearingspacer
7.Casterwheel
3.Outerbearingseal
8.Axlebolt
4.Conebearing
9.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.
CoolingSystem
Maintenance
CoolingSystemSafety
•Swallowingenginecoolantcancausepoisoning;
keepoutofreachfromchildrenandpets.
•Dischargeofhot,pressurizedcoolantortouching
ahotradiatorandsurroundingpartscancause
severeburns.
–Alwaysallowtheenginetocoolatleast15
minutesbeforeremovingtheradiatorcap.
–Usearagwhenopeningtheradiatorcap,and
openthecapslowlytoallowsteamtoescape.
•Donotoperatethemachinewithoutthecovers
inplace.
•Keepyourngers,handsandclothingclearof
rotatingfananddrivebelt.
•Shutofftheengineandremovethekeybefore
performingmaintenance.
CheckingtheCooling
System
ServiceInterval:Beforeeachuseordaily
Thecoolingsystemislledwitha50/50solutionof
waterandpermanentethyleneglycolantifreeze.The
capacityofthecoolingsystemis7.5L(6USqt).
1.Checkthelevelofthecoolantintheexpansion
tank(Figure78).
Note:Thecoolantlevelshouldbebetweenthe
marksonthesideofthetank.
g022120
Figure78
1.Expansiontank
2.Ifcoolantlevelislow,removetheexpansion-tank
capandreplenishthesystem.
Important:Donotoverll.
3.Installtheexpansion-tankcap.
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