Lincoln 500 manual Problems Possible Areas

E-4	TROUBLESHOOTING	E-4
PROBLEMS	POSSIBLE AREAS OF	RECOMMENDED
(SYMPTOMS)	MISADJUSTMENT(S)	COURSE OF ACTION

FUNCTION PROBLEMS

Engine goes to low idle but does not stay at	1.	Faulty Peripheral PCB, Pull Coil/Battery
low idle.		PCB or Weld Control PCB.
No welding output or auxiliary output.	1.	Broken lead in rotor circuit.
	2.	Faulty field diode module.
	3.	Faulty Weld Control P.C. Board.
	4.	Faulty rotor.
Welder has some/ no output and no control.	1. Faulty remote kit.
Auxiliary output OK	2.	Faulty output control potentiometer.
	3.	Faulty output control wiring.
	4.	Faulty Weld Control PCB, Pull
		Coil/Battery PCB or Chopper PCB.
No welding output. Auxiliary output OK.	1.	WELDING TERMINALS switch in wrong
		position, be sure switch is in WELDING
		TERMINALS ALWAYS ON position.
	2.	Faulty Weld Control PCB, Pull
		Coil/Battery PCB or Chopper PCB.
No auxiliary power.	1.	Open breakers may need to be reset.
	2.	Faulty receptacle.
	3.	Faulty auxiliary circuit wiring.
	4.	GFCI tripped.

If all recommended possible areas of misadjustment have been checked and the problem persists, Contact your local Lincoln Authorized Field Service Facility.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

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Vantage 500 CUMMINS