Toro Greensmaster TriFlex 3400 - Page 131

Step4:CheckthebatteryvoltagewiththeengineOFFatthe48V
logicpowerrelay.
1.Disconnectthe48Vlogicpowerrelay.
2.TurnthekeytotheONposition(donotstarttheengine).
3.Usingamultimeter,checkfor48voltsatthelogicpowerrelay.
Pass
Thetestshowed48Vatthelogicpowerrelay.GotoStep5.
Fail
Thetestshowedlessthan36voltsatthelogicpowerrelay.Replacefaultybatteriesinthe48
Vsystem.
Step5:TesttheS/Gforpropergeneratorfunction.
1.Startthemachine.
2.Functionthereelmotors.
3.Whilethereelmotorsarespinning,monitorthe48VsystemgeneratoroutputvoltageusingtheInfoCenter.
Pass
Thesystemmaintainedmorethan36voltsthroughouttesting.GotoStep6.
Fail
Thefaultrepeated.ReplacetheStarter/Generator.RefertotheGeneratorAssemblyreplacement
sectionofChapter6intheGreensmasterTriFlex3320/3420ServiceManual.
Step6:SwaptheprimaryTECwithaknowngoodunit.
Note:TECcontrollersareprogrammedtospecicmachinemodelandserialnumbers.TECcontrollersdonot
functionuntilprogrammedbyT oroDIAG.
TherearethreeproceduresthatyouneedtoaccomplishaspartofreplacingaTEC.RefertoReplacingaToro
ElectronicController(TEC)(page23).
1.UseT oroDIAGtosavethemachinetimersandcountersleoutoftheoriginalTEC.(page23)
2.ReplacetheTEC.(page24)
3.UseToroDIAGtoprogramtheTEC,andthenrestoretheTD2le.(page25)
4.DuplicatetheoperationofthemachinewhenthefaultoccurredwiththeoriginalprimaryTEC.
Thefaultnolonger
repeats.
GotoReturningtheMachinetoService(page21)andfollowthestepslisted.
Thefaultstillrepeats.ReinstalltheoriginalprimaryTECcontroller.Repeatthediagnosticprocessfor
thisfault.
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