Lincoln Electric SVM172-A service manual Powerfeed 10M

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F-9	TROUBLESHOOTING & REPAIR			F-9
POWERFEED 10M
Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS		POSSIBLE AREAS OF	RECOMMENDED
(SYMPTOMS)		MISADJUSTMENT(S)	COURSE OF ACTION
	FUNCTION PROBLEMS (Continued)
When the gun trigger is activated,		1. Check plug J83 on the wire	1. Perform the Drive Motor Test.
the drive rolls do not turn. The arc		drive control board, and leads
voltage is present and the solenoid		#550 and #551 for loose or
is energized. The STATUS LEDs		faulty conections. See wiring	2. The feedhead control board may
are steady green.		diagram.	be faulty.
The wire is feeding rough or not		1. The drive roll pressure may be	1. Contact the Lincoln Electric
feeding, but the drive rolls are turn-		incorrect. Set drive roll pres-	Service Department at
ing.		sure. See Operation section of	1.888.935.3877
		this manual.
		2. Check for dirty or rusty electrode
		wire.
		3. Make sure the drive rolls and
		wire guides are positioned and
		installed correctly. See
		Operation section of this manu-
		al.
		4. Check for mechanical restric-
		tions in the wire feeding path.
When in CC modes with the		1. Rotate Volts/Trim encoder knob
optional “MX” or “MXP” panels, the		at least 45 degrees clockwise.	1. Check option panel installation
otput does not energize.		This is normal. See
			for loose of faulty connections.
		Accessories section for detailed
		operation.

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 at 1-888-935-3877 for electrical troubleshooting assistance before you proceed.

POWER FEED 10M SINGLE/DUAL