Lincoln Electric SVM185-A service manual Output Problems

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F-6	TROUBLESHOOTING AND REPAIR					F-6
Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS		POSSIBLE AREAS OF	RECOMMENDED
(SYMPTOMS)		MISADJUSTMENT(S)	COURSE OF ACTION
		OUTPUT PROBLEMS
The feeder does power up - no dis-		1. The POWER FEED® 25M power	1. Turn the POWER FEED® 25M
play, no cold feed.		switch is OFF.	power switch ON.
		2. The Power Wave power source is	2. Turn ON the Power Wave power
		OFF.	source.
		3. The circuit breaker for the wire	3. Reset the circuit breakers.
		feeder on power source have	4. Tighten,	repair or	replace	the
		tripped.	control cable.
		4. The control cable may be loose or	5. Replace the power switch.
		damaged.
		5. The power switch is damaged.
No shielding gas.		1. The gas supply is OFF or empty.	1. Verify the gas supply is ON and
		2. The gas hose is cut or crushed.	flowing.
		3. Dirt or debris is in the solenoid.	2. Route the gas hose so it avoids
		4. There is a loose solenoid connec-	sharp corners and make sure
		tion or the solenoid has failed.	nothing is on top of it. Repair or
			replace damaged hoses.
			3. Apply filtered shop at 80psi to the
			solenoid to remove dirt.
			4. Remove the cover and check
			that all connections are in good
			condition.
Inconsistent wire feeding or wire		1. The gun cable is kinked and/or	1. Keep the gun cable as straight as
not feeding but drive rolls turning.		twisted	possible. Avoid sharp corners or
		2. The wire is jammed in the gun and	bends in the cable.
		cable.	2. Remove the gun from the wire
		3. The gun liner is dirty or worn.	feeder and pull the jammed wire
		4. The electrode is rusty or dirty.	out of the gun and cable.
		5. The contact tip is partially melted	3. Blow dirt out of the liner with low
		or has spatter.	pressure (40psi or less). Replace
		6. Improper gun liner, tip, drive rolls	the liner if worn.
		and/or inner wire guide.	4. Use only clean electrode. Use
		7. Incorrect tension arm pressure on	quality electrode, like L-50 or L-56
		the drive rolls.	from Lincoln Electric.
		8. Worn drive roll.	5. Replace the contact tip.
			6. Verify	the proper	parts	are
			installed.
			7. Adjust the tension arm per the
			Instruction Manual. Most elec-
			trodes feed well at a tension arm
			setting of "3".
			8. Replace the drive rolls if worn or
			filled with dirt.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call 1-888-935-3877.

POWER FEED® 25M