Toro 74950 - Checking the Wheel Lug Nuts; Checking the Wheel-Hub Slotted Nut; Adjusting the Caster-Pivot Bearing

CheckingtheWheelLugNuts
Checkandtorquethewheellugnutsto122to129N∙m(90
to95ft-lb).
CheckingtheWheel-Hub
SlottedNut
ServiceInterval:Aftertherst100hours
Every500hours
Checkandensurethatthetorqueoftheslottednutis286to
352N∙m(211to260ft-lb).
Note:Donotuseanti-seizecompoundonthewheelhub.
Figure63
1.Slottednut
AdjustingtheCaster-Pivot
Bearing
ServiceInterval:Every500hours/Yearly(whichevercomes
rst)
1.Disengagetheblade-controlswitch(PTO),movethe
motion-controlleverstotheNEUTRAL-LOCKposition,
andsettheparkingbrake.
2.Shutofftheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Removethedustcapfromthecasterandtightenthe
locknut(Figure64).
4.Tightenthelocknutuntilthespringwashersareatand
thenbackoffa1/4turntoproperlysetthepre-loadon
thebearings(Figure64).
Important:Makesurethatthespringwashersare
installedcorrectlyasshowninFigure64.
5.Installthedustcap(Figure64).
Figure64
1.Springwashers
3.Dustcap
2.Locknut
UsingtheClutchShim
Somelatermodelyearunitshavebeenbuiltwithclutchesthat
containabrakeshim.Whentheclutchbrakehasworntothe
pointwheretheclutchnolongerengagesconsistently,the
shimcanberemovedtoextendtheclutchlife.
Figure65
1.Armature5.Brakespacer
2.Fieldshell6.Re-gaptheshim.
3.Rotor7.Brakepole
4.Brake-mountingbolt
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