Lincoln Electric SVM151-A service manual Troubleshooting & Repair

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F-11					F-11
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
		WELDING PROBLEMS
When welding in the Stick Mode,	1.	Make sure the machine settings			1. Check the CC Slope Switch
the current changes with arc		are correct for the process			(S2) and the associated lead
length.		being used. When stick weld-			connections.
		ing, the CC Slope Switch (S2)			2. Check all the plug connections
		should be	in the Stick/Gouge
					to the Weld Control Board for
		position.
					loose or faulty connections.
	2. Check the welding cables for				See the Wiring Diagram
		loose or faulty connections.			3. The Weld Control Board may be
					faulty. Replace.
When using “fast freeze” type elec-	1.	Make sure the machine settings			1. Check the CC Slope Switch
trodes such as E6010 or E7010,		are correct for the process			(S2) and the associated lead
the welding performance is poor.		being used. When stick welding			connections.
		with “fast	freeze” type	elec-	2. Check all the plug connections
		trodes, the	CC Slope	Switch
					to the Weld Control Board for
		(S2) should be in the Pipe posi-
					loose or faulty connections.
		tion.
					See the Wiring Diagram.
	2.	Check the	welding cables for		3. The Weld Control Board may be
		loose or faulty connections.
					faulty. Replace.

CAUTION

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

MULTI-WELD 350