Operator's Manual

CheckingtheWheelLugNuts

Checkandtorquethewheellugnutsto122to129N-m(90

to95ft-lb).

CheckingtheWheelHub

SlottedNut

ServiceInterval:Aftertherst100hours

Every500hours

Checkandensurethatthetorqueoftheslottednutis286to

352N-m(211to260ft-lb).

Note:Donotuseanti-seizeonwheelhub.

Figure63

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(

Figure64).

4.Tightenthelocknutuntilthespringwashersareat,

andthenbackoffa1/4turntoproperlysetthepreload

onthebearings(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-gapshim

3.Rotor7.Brakepole

4.Brake-mountingbolt