Toro Z Master 6000 Professional Series - Lubricating the Caster-Wheel Hubs

Lubricatingthe
Caster-WheelHubs
ServiceInterval:Yearly
1.Shutofftheengine,waitforallmovingpartsto
stop,removethekey,andengagetheparking
brake.
g006115
Figure51
1.Sealguard2.Spacernutwithwrench
ats
2.Raisethemowerforaccess.
3.Removethecasterwheelfromthecasterforks.
4.Removethesealguardsfromthewheelhub.
5.Removeaspacernutfromtheaxleassemblyin
thecasterwheel.
Note:Thread-lockingadhesivehasbeen
appliedtolockthespacernutstotheaxle.
6.Removetheaxle(withtheotherspacernutstill
assembledtoit)fromthewheelassembly.
7.Pryoutsealsandinspectbearingsforwearor
damageandreplaceifnecessary.
8.Packthebearingswithageneral-purpose
grease.
9.Insert1bearingand1newsealintothewheel.
Note:Replacetheseals.
10.Iftheaxleassemblyismissingbothspacernuts,
applyathread-lockingadhesiveto1spacernut
andthreaditontotheaxlewiththewrenchats
facingoutward.
Note:Donotthreadthespacernutallof
thewayontotheendoftheaxle.Leave
approximately3mm(1/8inch)fromtheouter
surfaceofthespacernuttotheendoftheaxle
insidethenut.
11.Inserttheassemblednutandaxleintothewheel
onthesideofthewheelwiththenewsealand
bearing.
12.Withtheopenendofthewheelfacingup,ll
theareainsidethewheelaroundtheaxlefullof
general-purposegrease.
13.Insertthesecondbearingandnewsealintothe
wheel.
14.Applyathread-lockingadhesivetothesecond
spacernut,andthreaditontotheaxlewiththe
wrenchatsfacingoutward.
15.Torquethenutto8to9N∙m(75to80in-lb),
loosen,thentorqueto2to3N∙m(20to25in-lb).
Note:Makesurethattheaxledoesnotextend
beyondeithernut.
16.Installthesealguardsoverthewheelhub,and
insertthewheelintothecasterfork.
17.Installthecasterboltandtightenthenutfully.
Important:Topreventsealandbearingdamage,
checkthebearingadjustmentoften.Spinthe
castertire.Thetireshouldnotspinfreely(more
than1or2revolutions)orhaveanysideplay.If
thewheelspinsfreely,adjustthetorqueonthe
spacernutuntilthereisaslightamountofdrag.
Applyanotherlayerofthread-lockingadhesive.
41