Toro 74960 - Using the Clutch Shim

g001297
Figure67
1.Springwashers
3.Dustcap
2.Locknut
UsingtheClutchShim
Somelatermodelyearunitshavebeenbuiltwith
clutchesthatcontainabrakeshim.Whentheclutch
brakehasworntothepointwheretheclutchnolonger
engagesconsistently,youcanremovetheshimcan
beremovedtoextendtheclutchlife.
g010869
Figure68
1.Armature5.Brakespacer
2.Fieldshell6.Re-gapshim
3.Rotor7.Brakepole
4.Brake-mountingbolt
RemovingtheClutchShim
1.Shutofftheengine,waitforallmovingpartsto
stop,removethekey,engagetheparkingbrake,
andallowthemachinetocoolcompletely.
2.Usinganaircompressor,blowoutanydebris
fromunderthebrakepoleandaroundthebrake
spacers(Figure69).
g010868
Figure69
3.Checktheconditionofthewire-harnessleads,
connectors,andterminals.
Note:Cleanorrepairasnecessary.
4.Verifythat12Vispresentattheclutchconnector
whenyouengagetheblade-controlswitch
(PTO).
5.Measurethegapbetweentherotorand
armature.Ifthegapisgreaterthan1mm(0.04
inch),dothefollowingsteps:
A.Loosenbothbrake-mountingbolts1/2to1
fullturnasshowninFigure70.
Note:Donotremovethebrakepolefrom
theeldshell/armature.Thebrakepole
hasworntomatchthearmatureandmust
continuetomatchafteryouremovethe
shimtoensureproperbraketorque.
g010870
Figure70
1.Brake-mountingbolt
52