Toro 74953 - 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
Figure61
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.Removethedustcapfromcasterandtightenlocknut
(Figure62).
4.Tightenthelocknutuntilthespringwashersareatand
thenbackoffa1/4turntoproperlysetthepre-loadon
thebearings(Figure62).
Important:Makesurethespringwashersare
installedcorrectlyasshowninFigure62.
5.Installthedustcap(Figure62).
Figure62
1.SpringWashers3.DustCap
2.LockNut
UsingtheClutchShim
Somelatermodelyearunitshavebeenbuiltwithclutchesthat
containabrakeshim.Whentheclutchbrakehasworntothe
pointwheretheclutchnolongerengagesconsistently,the
shimcanberemovedtoextendtheclutchlife.
Figure63
1.Armature5.Brakespacer
2.Fieldshell6.Re-gapshim
3.Rotor7.Brakepole
4.Brakemountingbolt
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