Toro 74955 - Using the Clutch Shim

4.Tightenthelocknutuntilthespringwashersareatand
thenbackoffa1/4turntoproperlysetthepre-loadon
thebearings(Figure62).
Important:Makesurethespringwashersare
installedcorrectlyasshowninFigure62.
5.Installthedustcap(Figure62).
Figure62
1.Springwashers
3.Dustcap
2.Locknut
UsingtheClutchShim
Somelatermodelyearunitshavebeenbuiltwithclutchesthat
containabrakeshim.Whentheclutchbrakehasworntothe
pointwheretheclutchnolongerengagesconsistently,the
shimcanberemovedtoextendtheclutchlife.
Figure63
1.Armature5.Brakespacer
2.Fieldshell6.Re-gapshim
3.Rotor7.Brakepole
4.Brakemountingbolt
RemovingtheClutchShim
1.Stoptheengine,waitforallmovingpartstostop,and
removethekey.
2.Engagetheparkingbrakeandallowthemachineto
coolcompletelybeforestartingtheseinstructions.
3.Usinganaircompressor,blowoutanydebrisfrom
underthebrakepoleandaroundthebrakespacers.
Figure64
4.Checktheconditionofthewireharnessleads,
connectors,andterminals.Cleanorrepairasnecessary.
5.Verifythat12Vispresentattheclutchconnectorwhen
thePTOswitchisengaged.
6.Measurethegapbetweentherotorandarmature.If
thegapisgreaterthan1mm(0.04inch),proceedwith
thefollowingsteps:
A.Loosenbothbrakemountingboltsone-halfto
onefullturnasshownbelow.
Note:Donotremovethebrakepolefromthe
eldshell/armature.Thebrakepolehasworn
tomatchthearmatureandneedstocontinueto
matchaftertheshimisremovedtoensureproper
braketorque.
Figure65
1.Brakemountingbolt
B.Usingneedlenosepliers,orbyhand,takehold
ofthetab,andremovetheshim(Donotdiscard
theshimuntilproperclutchfunctionhasbeen
conrmed).
45