Toro 74906 - 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.
Figure68
1.Slottednut
AdjustingtheCasterPivot
Bearing
ServiceInterval:Every500hours/Yearly(whichevercomes
rst)
1.Disengagethebladecontrolswitch(PTO),movethe
motioncontrolleverstotheneutrallockedposition
andsettheparkingbrake.
2.Stoptheengine,removethekey,andwaitforallmoving
partstostopbeforeleavingtheoperatingposition.
3.Removethedustcapfromthecasterandtightenthe
locknut(
Figure69).
4.Tightenthelocknutuntilthespringwashersareatand
thenbackoffa1/4turntoproperlysetthepre-loadon
thebearings(Figure69).
Important:Makesurethatthespringwashersare
installedcorrectlyasshowninFigure69.
5.Installthedustcap(Figure69).
Figure69
1.Springwashers
3.Dustcap
2.Locknut
UsingtheClutchShim
Somelatermodelyearunitshavebeenbuiltwithclutchesthat
containabrakeshim.Whentheclutchbrakehasworntothe
pointwheretheclutchnolongerengagesconsistently,the
shimcanberemovedtoextendtheclutchlife.
Figure70
1.Armature5.Brakespacer
2.Fieldshell6.Re-gapshim
3.Rotor7.Brakepole
4.Brakemountingbolt
45