Toro 74922 - Checking the Wheel Lug Nuts; Checking the Wheel Hub Slotted Nut; Adjusting the Caster-Pivot Bearing; Using the Clutch Shim

CheckingtheWheelLugNuts
Checkandtorquethewheellugnutsto122to129N-m(90
to95ft-lb).
CheckingtheWheelHub
SlottedNut
ServiceInterval:Aftertherst100hours
Every500hours
Checkandensurethatthetorqueoftheslottednutis286to
352N-m(211to260ft-lb).
Note:Donotuseanti-seizeonwheelhub.
g027341
Figure64
1.Slottednut
AdjustingtheCaster-Pivot
Bearing
ServiceInterval:Every500hours/Yearly(whichevercomes
rst)
1.Disengagetheblade-controlswitch(PTO),movethe
motion-controlleverstotheneutral-lockedposition,
andsettheparkingbrake.
2.Stoptheengine,removethekey,andwaitforallmoving
partstostopbeforeleavingtheoperatingposition.
3.Removethedustcapfromcasterandtightenthelock
nut(Figure65).
4.Tightenthelocknutuntilthespringwashersareat,
andthenbackoffa1/4turntoproperlysetthepreload
onthebearings(Figure65).
Important:Makesurethatthespringwashersare
installedcorrectlyasshowninFigure65.
5.Installthedustcap(Figure65).
Figure65
1.Springwashers
3.Dustcap
2.Locknut
UsingtheClutchShim
Somelatermodelyearunitshavebeenbuiltwithclutchesthat
containabrakeshim.Whentheclutchbrakehasworntothe
pointwheretheclutchnolongerengagesconsistently,the
shimcanberemovedtoextendtheclutchlife.
Figure66
1.Armature5.Brakespacer
2.Fieldshell6.Re-gapshim
3.Rotor7.Brakepole
4.Brake-mountingbolt
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