Toro 74925 - Using the Clutch Shim

Figure64
1.SpringWashers3.DustCap
2.LockNut
UsingtheClutchShim
Somelatermodelyearunitshavebeenbuiltwithclutches
thatcontainabrakeshim.Whentheclutchbrakehas
worntothepointwheretheclutchnolongerengages
consistently,theshimcanberemovedtoextendthe
clutchlife.
Figure65
1.Armature5.Brakespacer
2.Fieldshell6.Re-gapshim
3.Rotor7.Brakepole
4.Brakemountingbolt
RemovingtheClutchShim
1.Stoptheengine,waitforallmovingpartstostop,
andremovethekey.Engagetheparkingbrake.
Allowthemachinetocoolcompletelybeforestarting
theseinstructions.
2.Usinganaircompressor,blowoutanydebrisfrom
underthebrakepoleandaroundthebrakespacers.
Figure66
3.Checktheconditionofthewireharnessleads,
connectors,andterminals.Cleanorrepairas
necessary.
4.Verifythat12Vispresentattheclutchconnector
whenthePTOswitchisengaged.
5.Measurethegapbetweentherotorandarmature.
Ifthegapisgreaterthan.04inch(1mm),proceed
withthefollowingsteps:
A.Loosenbothbrakemountingboltsone-halfto
onefullturnasshownbelow.
Note:DoNotremovethebrakepolefromthe
eldshell/armature.Thebrakepolehasworn
tomatchthearmatureandneedstocontinueto
matchaftertheshimisremovedtoensureproper
braketorque.
Figure67
1.Brakemountingbolt
B.Usingneedlenosepliers,orbyhand,takehold
ofthetabandremovetheshim(DoNotdiscard
theshimuntilproperclutchfunctionhasbeen
conrmed).
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