Toro Greensmaster TriFlex 3400 - Troubleshooting Intermittent Electrical Faults; Attempt to Duplicate the Fault

TroubleshootingIntermittentElectricalFaults
AttempttoDuplicatetheFault
1.Operatethemachinebasedontheinformationprovidedbytheoperator.
2.Observethemachineduringnormaloperation.Payattentiontohowthemachineisbeingoperated.
3.Worktowardbeingabletoduplicatethefaultpredictably.
4.Makenotesasyouproceedthroughyourdiagnosis.Documentyourstepsandanytestresultsforfuture
reference.
CompletetheBasicMaintenanceChecks
ChecktheConditionofthe12VBattery
1.Inspectforanycorroded,loose,ordamagedwiresandconnections,includingallchassisgroundpoints.
•Loosen,clean,andtightenthebatteryconnections(cables,posts,etc.).
•Loosen,clean,andtightenthechassisgroundpoints.
2.Loadtestthebatterytoensureitmeetstheoutputspecication.
TesttheChargingSystem
Testthechargingsystemtoensureitmeetstheoutputspecication.
InspectFusesandFusibleLinks
1.Verifyallfusesareofthecorrectratingandthatthecontactsarecleanandsecurelyseated.
2.Verifyallfusiblelinksareofthecorrectratingandthattheconnectorsarecleanandsecurelyseated.
Note:Openfusesarenotnecessarilythecauseofafailure.
CircuitWiringandConnectors
Commonissuestolookforare:
•Damagedwiringinsulation
•Corrosion
•Brokenwirestrands
•Incorrectwiringcircuitorharnessrouting
•Looseconnectionsbetweenconnectors
•Loose,bent,orbackedoutconnectorterminals
•Connectorhousinglocksthatarebrokenornotengagingfully
•Improperorweakcrimps,splices,andsolderedjoints
•Discoloredorburnedconnectors
CANCircuitsandCommunicationCapture
Iftheintermittentissueremainsafterthebasicdiagnosticprocessesarecomplete,usethecontroller-specic
diagnostictoolsandfunctionsavailabletomonitororcapturedataasthemalfunctionoccurs.Theseinclude:
•ToroDIAGSavefunction(seetheToroDIAGSoftwareGuide)
•ToroCANCapture(seetheToroDIAGSoftwareGuide)
•ToroScopeRecordfunction(seetheToroDIAGSoftwareGuide)
16