SCMOutputs(continued)
ThePTOoutputLEDshouldbeilluminatedwhenthekeyswitchisintheON
positionandthePTOswitchisON(pulledout).
Note:IftheSCMhigh-temperaturewarninginputLEDisilluminated,thePTO
outputLEDdoesnotilluminate,andthePTOdisengagesregardlessofthe
PTOswitchposition.
StandardControlModuleLogicChart
Eachlineofthefollowingchart(Figure114)identiîš¿esthenecessarycomponent
position(inputs)inorderfortheSCMtoenergizetheappropriateoutputsfor
operatingthemachine.
Example:Tostarttheenginewithanoperatorintheseat,whenthekeyisinthe
STARTposition,thetractionpedalintheneutralposition,andtheparkingbrakeis
notset,theenginecomponentsandenginestarterisenergized.
IMPORTANT
Duringtheoperationofthemachine,ifthePTOshutsdownandthe
consoletemperaturewarninglightilluminates,avoidshuttingoffthe
engine.Underthiscondition,pushthePTOknobdown,slowlydrive
toasafeatarea,movethethrottlelevertotheSLOWposition,press
thetractionpedal,andsettheparkingbrake.Allowtheenginetobe
idleforseveralminuteswhileitcoolstoasafelevel,andcheckthe
coolingsystembeforereturningthemachinetoservice.
Groundsmaster
®
3280-D/3320
Page6–5
ElectricalSystem:GeneralInformation
05138SLRevB
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