Lincoln Electric IM612 manual Engine will not go to high idle Poor work lead connection to

E-3	TROUBLESHOOTING	E-3
	Observe all Safety Guidelines detailed throughout this manual

PROBLEMS

(SYMPTOMS)

POSSIBLE AREAS OF MISADJUSTMENTS(S)

RECOMMENDED

COURSE OF ACTION

C. Engine will not go to high idle	1.	Poor work lead connection to	1.	Make certain work clamp is tightly
when attempting to weld.		work.		connected to clean base metal.
	2.	No voltage signal from the	2.	Check for disconnected or broken
		current sensor.		leads in idler sensing circuit.
	3.	No open circuit voltage on	3.	Check generator output.
		output studs.
	4.	Faulty P.C. Board.	4.	Replace P.C. Board with
				known good one.
	5.	Insufficient voltage present between 5.		Check for proper connection of
		terminals #253 and #5G (Volatge		leads.
		should be 12 V DC)
	6.	Faulty wiring in solenoid circuit.	6.	Check for broken or loose leads
				#5G and #253.
D. Engine will not go to high idle	1.	No voltage signal from the	1.	Check for disconnected or broken
when using auxiliary power.		current sensor.		leads in idler sensing circuit.
	2.	Auxiliary power load less than	2.	Idler may not function with less
		100 to 150 watts.		than 100 to 150 watt load. Set
				idler switch to high idle.
	3.	Faulty P.C. Board	3.	Replace P.C. Board with known
				good one.
	4.	Insufficient voltage present between 4.		Check for proper connection of
		terminals #253 and #5G (Volatge		leads.
		should be 12 V DC)
	5.	Faulty wiring in solenoid circuit.	5.	Check for broken or loose leads
				#5G and #253.
E. Engine will not crank or is	1.	Battery will not hold a charge.	1.	Replace with known good one.
hard to crank.		Faulty Battery.
	2.	No or insufficient charging	2.	Check the connection of the
		current.		lead from the voltage regulator
				on the engine to the charging
				ammeter and the battery.
	3.	Loose battery cable	3.	Check and tighten connection
		connection(s).		at battery, at starter, at engine
				foot, or at frame.

F.Engine shuts down.

1.Out of fuel.

1.Add fuel.

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.

RANGER 8+ DIESEL