Lincoln Electric PM 255 specifications Output Problems

E-3		TROUBLESHOOTING						E-3
	Observe all Safety Guidelines detailed throughout this manual
PROBLEMS			POSSIBLE AREAS OF			RECOMMENDED
(SYMPTOMS)			MISADJUSTMENT(S)			COURSE OF ACTION
					OUTPUT PROBLEMS
Poor arc striking with electrode			1. Make sure settings for wire feed
sticking or blasting off.					speed and voltage are correct
					for process being used.	If all recommended possible areas
			2. The Run-In (Fast or Slow) speed
						of misadjustment have been
					may be wrong for process and	checked and the problem persists,
					technique being used. See	Contact your local Authorized
					Operation Section.	Field Service Facility.
			3. The gas shielding may be
					improper for process being used.
PROBLEMS				POSSIBLE AREAS OF			RECOMMENDED
(SYMPTOMS)				MISADJUSTMENT(S)			COURSE OF ACTION
					FEEDING PROBLEMS
Rough wire feeding or wire will not				1.	The gun cable may be kinked or twisted.
feed but drive rolls are turning.				2.	The wire may be jammed in the gun
					cable, or gun cable may be dirty.
				3.	Check drive roll tension and
					position of grooves.
				4.	Check for worn or loose drive rolls.
				5.	The electrode may be rusty or dirty.
				6.	Check for damaged or incorrect
					contact tip.
				7.	Check wire spindle for ease of
					rotation and adjust break ten-		If all recommended possible areas
					sion knob if necessary.
							of misadjustment have been
The wire feed stops while welding.				1.	Check the wire feed drive rolls		checked and the problem persists,
When trigger is released and pulled					and motor for smooth operation.		Contact your local Authorized
again the wire feed starts.				2.	Check for restrictions in the wire		Field Service Facility.
					feed path. Check the gun and
					cable for restrictions.
				3.	Make sure gun liner and tip are
				4.	correct for wire size being used.
					Make sure drive rolls and guide plates
					are clean and are the correct size.
				5. If K1701-1 Timer Option Kit is
					installed, make sure the spot timer
					knob is set to off.
				6. Check spindle for ease of rotation.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your

LOCAL AUTHORIZED FIELD SERVICE FACILITY for assistance before you proceed.

PM 255