Toro GrandStand 74589 - Lubricate Caster-Wheel Hubs

LubricateCaster-WheelHubs
ServiceInterval:Yearly
1.Stoptheengine,waitforallmovingpartstostop,
engagetheparkingbrake,andremovethekey.
Figure39
1.Sealguard2.Spacernutwithwrench
ats
2.Removethecasterwheelfromthecasterforks.
3.Removethesealguardsfromthewheelhub.
4.Removeoneofthespacernutsfromtheaxleassembly
inthecasterwheel.
Note:Thread-lockingadhesivehasbeenappliedto
lockthespacernutstotheaxle.Removetheaxle(with
theotherspacernutstillassembledtoit)fromthe
wheelassembly.
5.Pryoutthesealsandinspectbearingsforwearor
damage,andreplaceifnecessary.
6.Packthebearingswithageneral-purposegrease.
7.Insert1bearingand1sealintothewheel.
Note:Thesealsmustbereplaced.
8.Iftheaxleassemblyhashadbothspacernutsremoved
(orbrokenloose),applyathread-lockingadhesiveto
onespacernutandthreaditontotheaxlewiththe
wrenchatsfacingoutward.
Note:DoNotthreadspacernutallofthewayonto
theendoftheaxle.Leaveapproximately3mm(1/8
inch)fromtheoutersurfaceofthespacernuttothe
endoftheaxleinsidethenut.
9.Inserttheassemblednutandaxleintothewheelonthe
sideofthewheelwiththenewsealandbearing.
10.Withtheopenendofthewheelfacingup,llthearea
insidethewheelaroundtheaxlefullofgeneral-purpose
grease.
11.Insertthesecondbearingandthenewsealintothe
wheel.
12.Applyathread-lockingadhesivetothesecondspacer
nut,andthreaditontotheaxlewiththewrenchats
facingoutward.
13.Torquethenutto8to9N-m(71to80in-lb),loosen,
thentorqueitto2to3N-m(20to25in-lb).
Note:Makesureaxledoesnotextendbeyondeither
nut.
14.Installthesealguardsoverthewheelhubandinsert
wheelintocasterfork.
15.Installcasterboltandtightennutfully.
Important:Topreventsealandbearingdamage,check
thebearingadjustmentoftenbyspinningthecaster
tire.Thetireshouldnotspinfreely(morethan1or2
revolutions)orhaveanysideplay.Ifthewheelspins
freely,adjustthetorqueonthespacernutuntilthere
isaslightamountofdrag,andapplythread-locking
adhesive.
31