Figure46
6.Removethedustcapandadjustthecasterpivots.
Keepthedustcapoffuntilgreasingisdone;referto
AdjustingtheCasterPivotBearing(page45).
7.Removethehexplug.Threadagreasettingintothe
hole.
8.Pumpgreaseintothettinguntilitoozesoutaround
thetopbearing.
9.Removethegreasettinginthehole.Installthehex
pluganddustcap(
Figure47).
Figure47
LubricatingtheCasterWheel
Hubs
ServiceInterval:Yearly
PreparingtoLubricatetheCaster
Wheels
1.Stoptheengine,waitforallmovingpartstostop,
removethekey,andengagetheparkingbrake.
2.Elevatethefrontofthemachineusingoneofthe
followingmethods:
•Jackandjackstands
A.Chockthereartires.
B.Raisefrontofthemachineusingajack.
C.Supportthemachinewithjackstands.
•ZStand
A.RaiseandsupportthemachineusingtheZ
Stand;referto
UsingtheZStand®(page29).
B.Chockthereartires.
LubricatingtheCasterWheelBearings
Important:Topreventsealandbearingdamage,check
thebearingadjustmentoftenbyspinningthecaster
tire.Thetireshouldnotspinfreely(morethan1or2
revolutions)orhaveanysideplay.Ifthewheelspins
freely,adjusttorqueonspacernutuntilthereisaslight
amountofdrag.Aftercheckingthebearing,applya
thread-lockingadhesive.
1.Removethecasterwheelfromthecasterforks.
Figure48
1.Sealguard2.Spacernutwithwrench
ats
2.Removethesealguardsfromthewheelhub.
3.Removeoneofthespacernutsfromtheaxleassembly
inthecasterwheel.
Note:Athread-lockingadhesivehasbeenappliedto
lockthespacernutstotheaxle.
4.Removetheaxle(withtheotherspacernutstill
assembledtoit)fromthewheelassembly.
5.Pryoutseals,andinspectbearingsforwearordamage.
Note:Replacethebearingsifnecessary.
6.Packthebearingswithageneral-purposegrease.
7.Insertonebearing,onenewsealintothewheel.
Note:Thesealsmustbereplaced.
8.Iftheaxleassemblyhashadbothspacernutsremoved
(orbrokenloose),applyathread-lockingadhesive
toonespacernutandthreadontotheaxlewiththe
wrenchatsfacingoutward.
34