Toro Z Master Professional 3000 Series - Wheel and Bearing Maintenance; Wheel Lug Nut and Hub Nut Checks; Caster-Pivot Bearing Adjustment

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Figure64
CheckingtheWheelLug
Nuts
Checkandtorquethewheellugnutsto122to129
N∙m(90to95ft-lb).
CheckingtheWheel-Hub
SlottedNut
ServiceInterval:Aftertherst100hours
Every500hours
Checkandensurethatthetorqueoftheslottednutis
286to352N∙m(211to260ft-lb).
Note:Donotuseanti-seizecompoundonthewheel
hub.
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Figure65
1.Slottednut
AdjustingtheCaster-Pivot
Bearing
ServiceInterval:Every500hours/Yearly(whichever
comesrst)
1.Disengagetheblade-controlswitch(PTO),move
themotion-controlleverstotheNEUTRAL-LOCK
position,andengagetheparkingbrake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Removethedustcapfromcasterandtighten
thelocknut(Figure66).
4.Tightenthelocknutuntilthespringwashersare
at,andthenbackoffa1/4turntoproperlyset
thepreloadonthebearings(Figure66).
Important:Makesurethatthespring
washersareinstalledcorrectlyasshownin
Figure66.
5.Installthedustcap(Figure66).
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