Toro 74906 - Page 46

RemovingtheClutchShim
1.Stoptheengine,waitforallmovingpartstostop,and
removethekey.
2.Engagetheparkingbrakeandallowthemachineto
cool.
3.Usinganaircompressor,blowoutanydebrisfrom
underthebrakepoleandaroundthebrakespacers.
Figure71
4.Checktheconditionofthewireharnessleads,
connectors,andterminals.Cleanorrepairasnecessary.
5.Verifythat12Vispresentattheclutchconnectorwhen
thePTOswitchisengaged.
6.Measurethegapbetweentherotorandthearmature.
Ifthegapisgreaterthan1mm(0.04inch),proceed
withthefollowingsteps:
A.Loosenbothbrakemountingboltsone-halfto
onefullturnasshownbelow.
Note:Donotremovethebrakepolefromthe
eldshell/armature.Thebrakepolehasworn
tomatchthearmatureandneedstocontinueto
matchaftertheshimisremovedtoensureproper
braketorque.
Figure72
1.Brakemountingbolt
B.Usingneedle-nosepliers,orbyhand,takeholdof
thetabandremovetheshim.
Note:Donotdiscardtheshimuntilproper
clutchfunctionhasbeenconrmed.
Figure73
1.Shim
C.Usingapneumaticline,blowoutanydebris
fromunderthebrakepoleandaroundthebrake
spacers.
D.Re-torqueeachbolt(M6x1)to13N-m(10ft-lb)
+/-0.7N-m(0.5ft-lb).
E.Usinga0.010inchthickfeelergauge,verifythat
agapispresentbetweentherotorandarmature
faceonbothsidesofthebrakepoleasshown.
Note:Duetothewaytherotorandarmature
faceswear(peaksandvalleys)itissometimes
difculttomeasurethetruegap.
Figure74
1.Feelergauge
Figure75
1.Feelergauge
•Ifthegapislessthan0.010inch,thenreinstall
theshimandreferencetheTroubleshooting
section.
•Ifthegapissufcient,proceedtothesafety
checkinstep
F.
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