Lincoln Electric SVM120-A service manual Troubleshooting & Repair

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

F-17		F-17
	TROUBLESHOOTING & REPAIR
	TROUBLESHOOTING GUIDE	Observe Safety Guidelines
		detailed in the beginning of this manual.

PROBLEMS	POSSIBLE AREAS OF	RECOMMENDED
(SYMPTOMS)	MISADJUSTMENT(S)	COURSE OF ACTION
	FUNCTION PROBLEMS
The CV output contactor does not	1. Make sure the Wire Feeder	1. With the jumper installed in pins
pull in when using a wire feeder	switch (S8) is in the “WITH	“D” and “C” in the 14 pin
with a control cable connected to	CONTROL CABLE” position.	amphenol, check for 12VDC
the RANGER 10-LX amphenol.	2. Install a jumper wire from pins	from leads #224F(+) to #2C(-) at
		the CV output contactor. If
	“D” to “C” on the 14 pin amphe-
		12VDC is present and the con-
	nol. If the output contactor acti-
		tactor does NOT activate, then
	vates, the problem is external to
		the contactor may be defective.
	the RANGER 10-LX. The wire
	feeder or control cable may be	2. If the correct voltage is NOT
	faulty.	present in Step #1, check from
		lead #224F to ground (lead #5)
		for the presence of 12VDC. If
		12VDC is present, then check
		the continuity of lead 2C
		through the RF bypass board to
		the 14 pin amphenol. See
		Wiring Diagram.
		3. If 12VDC is NOT present from
		lead #224F to ground (lead #5),
		then check the #224F lead for
		an open circuit. See Wiring
		Diagram.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 216-383-2531 or 1-800-833-9353.

RANGER 10-LX