Toro 30344 - High Temperature Shutdown Switch

HighTemperatureShutdownSwitch
g226811
Figure154
1.Hightemperatureshutdownswitch(dieselengine)
g230992
Figure155
1.Hightemperatureshutdownswitch(gasolineengine)
Thehightemperatureshutdownswitch(Figure154orFigure155)isattached
tothewaterpumphousingontheengineandhasablue/whitewireattachedto
it.Thisswitchisnormallyopenandcloseswhenenginecoolanttemperature
reachesapproximately115°C(240°F).Theclosedswitchprovidesaninputto
theStandardControlModule(SCM).
ThisinputcausestheSCMhightemperatureshutdownLEDtoilluminateand
thecuttingdecktoshutdown.Thehightemperatureshutdownswitchand
circuitwiringshouldbetestedasaSCMinputbeforeperformingthefollowing
testingprocedure.
TestingtheHighTemperatureShutdownSwitch
1.Parkthemachineonalevelsurface,lowerthecuttingdeck,shutoffthe
engine,settheparkingbrake,andremovethekeyfromthekeyswitch.
2.Unlatchthehoodandraiseit.
Groundsmaster
®
3280-D/3320
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ElectricalSystem:TestingtheElectricalComponents
05138SLRevB