Toro 74933 - Using the Clutch Shim

UsingtheClutchShim
Somelatermodelyearunitshavebeenbuiltwith
clutchesthatcontainabrakeshim.Whentheclutch
brakehasworntothepointwheretheclutchnolonger
engagesconsistently,theshimcanberemovedto
extendtheclutchlife.
g010869
Figure66
1.Armature5.Brakespacer
2.Fieldshell6.Re-gapshim
3.Rotor7.Brakepole
4.Brake-mountingbolt
RemovingtheClutchShim
1.Shutofftheengine,waitforallmovingpartsto
stop,removethekey,engagetheparkingbrake,
andallowthemachinetocoolcompletelybefore
startingtheseinstructions.
2.Usinganaircompressor,blowoutanydebris
fromunderthebrakepoleandaroundthebrake
spacers(Figure67).
g010868
Figure67
3.Checktheconditionofthewire-harnessleads,
connectors,andterminals.
Note:Cleanorrepairasnecessary.
4.Verifythat12Vispresentattheclutchconnector
whenyouengagetheblade-controlswitch
(PTO).
5.Measurethegapbetweentherotorand
armature.Ifthegapisgreaterthan1mm(0.04
inch),proceedwiththefollowingsteps:
A.Loosenbothbrake-mountingbolts1/2to1
fullturnasshowninFigure68.
Note:Donotremovethebrakepolefrom
theeldshell/armature.Thebrakepolehas
worntomatchthearmatureandneedsto
continuetomatchaftertheshimisremoved
toensureproperbraketorque.
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