Toro 74991 Z Master Professional 5000 Series - Page 50

5.Verifythat12Vispresentattheclutchconnector
whentheyouengagetheblade-controlswitch(PTO).
6.Measurethegapbetweentherotorandarmature.If
thegapisgreaterthan1mm(0.04inch),proceedwith
thefollowingsteps:
A.Loosenbothbrakemountingbolts1/2to1full
turnasshowninFigure73.
Note:Donotremovethebrakepolefromthe
eldshell/armature.Thebrakepolehasworn
tomatchthearmatureandneedstocontinueto
matchafteryouremovetheshimtoensurethe
properbraketorque.
Figure73
1.Brake-mountingbolt
B.Usingneedle-nosepliers,orbyhand,removethe
shim.
Note:Donotdiscardtheshimuntilyouconrm
thattheclutchfunctionsproperly.
Figure74
1.Shim
C.Usingapneumaticline,blowoutanydebrisunder
thebrakepoleandaroundthebrakespacers.
D.Torqueeachbolt(M6x1)to12.3to13.7N∙m
(9.5to10.5ft-lb).
E.Usinga0.010inchthick-feelergauge,verifythat
agapispresentbetweentherotorandarmature
faceonbothsidesofthebrakepoleasshownin
Figure75andFigure76.
Note:Duetothewaytherotorandarmature
faceswear(peaksandvalleys),itissometimes
difculttomeasurethetruegap.
Figure75
1.Feelergauge
Figure76
1.Feelergauge
•Ifthegapislessthan0.010inch,theninstall
theshimandrefertoTroubleshooting(page
69).
•Ifthegapissufcient,proceedtothesafety
checkinstepF.
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