Toro 74923 - Page 50

RemovingtheClutchShim
1.Shutofftheengine,waitforallmovingpartsto
stop,removethekey,engagetheparkingbrake,
andallowthemachinetocoolcompletelybefore
startingtheseinstructions.
2.Usinganaircompressor,blowoutanydebris
fromunderthebrakepoleandaroundthebrake
spacers(Figure68).
g010868
Figure68
3.Checktheconditionofthewire-harnessleads,
connectors,andterminals.
Note:Cleanorrepairasnecessary.
4.Verifythat12Vispresentattheclutchconnector
whentheblade-controlswitch(PTO)switchis
engaged.
5.Measurethegapbetweentherotorand
armature.Ifthegapisgreaterthan1mm(0.04
inch),proceedwiththefollowingsteps:
A.Loosenbothbrake-mountingbolts1/2to1
fullturnasshowninFigure69.
Note:Donotremovethebrakepolefrom
theeldshell/armature.Thebrakepolehas
worntomatchthearmatureandneedsto
continuetomatchaftertheshimisremoved
toensureproperbraketorque.
g010870
Figure69
1.Brake-mountingbolt
B.Usingneedle-nosepliers,orbyhand,hold
thetabandremovetheshim(Figure70).
Note:Donotdiscardtheshimuntilproper
clutchfunctionhasbeenconrmed.
g010871
Figure70
1.Shim
C.Usingapneumaticline,blowoutanydebris
fromunderthebrakepoleandaroundthe
brakespacers.
D.Torqueeachbolt(M6x1)to13N∙m(10
ft-lb)+/-0.7N∙m(0.5ft-lb).
E.Usinga0.25mm(0.01inch)thickfeeler
gauge,verifythatagapispresentbetween
therotorandthearmaturefaceonboth
sidesofthebrakepoleasshowninFigure
71andFigure72.
Note:Duetothewaytherotorandthe
armaturefaceswear(peaksandvalleys)it
issometimesdifculttomeasurethegap
accurately.
g010872
Figure71
1.Feelergauge
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