Operator's Manual

Figure19
1.Input5.Inseat
9.Output13.Start
2.Backlap
6.PTOswitch10.PTO
14.Power
3.Hightempshutdown
7.Parkbrakeoff11.Start
4.Hightempwarning(Not
used)
8.Neutral12.ETR
HerearethelogicaltroubleshootingstepsfortheSCM
device.
1.Determinetheoutputfaultyouaretryingtoresolve
(PTO,START,orETR).
2.Movekeyswitchto"ON"andensurethered
"power"LEDisilluminated.
3.MoveallinputswitchestoensureallLED’schange
state.
4.Positioninputdevicesatappropriatepositionto
achievetheappropriateoutput.Usethefollowing
logiccharttodeterminetheappropriateinput
condition.
5.IfspecicoutputLEDisilluminatedwithout
appropriateoutputfunction,checkoutputharness,
connections,andcomponent.Repairasrequired.
6.IfspecicoutputLEDisnotilluminated,check
bothfuses.
7.IfspecicoutputLEDisnotilluminatedandinputs
areinappropriatecondition,installnewSCMand
determineiffaultdisappears.
Eachrow(across)inthelogicchartbelowidenties
inputandoutputrequirementsforeachspecic
productfunction.Productfunctionsarelistedin
theleftcolumn.Symbolsidentifyspeciccircuit
conditionincluding:energizedtovoltage,closedto
ground,andopentoground.
Note:-Indicatesacircuitclosedtoground.-LEDON
OIndicatesacircuitopentogroundorde-energized-LEDOFF
+Indicatesanenergizedcircuit(clutchcoil,solenoid,orstartinput)LEDON.
""ABlankindicatesacircuitthatisnotinvolvedwiththelogic.
Totroubleshoot,turnonthekeywithoutstarting
theengine.Identifythespecicfunctionthatdoes
notworkandworkacrossthelogicchart.Inspect
theconditionofeachinputLED’stoensureit
matchesthelogicchart.
IftheinputLED’sarecorrect,checktheoutput
LED.IftheoutputLEDisilluminatedbutthe
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