Lincoln Electric IM595-A manual Your local Lincoln Authorized, Field Service Facility

E-7	TROUBLESHOOTING	E-7
	Observe all Safety Guidelines detailed throughout this manual

PROBLEMS

(SYMPTOMS)

POSSIBLE AREAS OF MISADJUSTMENTS(S)

RECOMMENDED

COURSE OF ACTION

CONSUMABLE RELATED SAFETY LED

If the Safety LED is LIT AND STEADY, perform the following:

Press the reset button. If the torch	1.	If the reset button (when pressed)
and consumables are properly		does not turn the Safety LED off,
installed, the Safety LED should turn		the reset button or associated
off.		wiring may be faulty. See the
		wiring diagram.
Try to recount the number of times	1.	If this has occurred numerous
that the Safety LED has come on lit		times, clean consumables with a
and steady with this particular set of		piece of fine emery cloth to
consumables.		remove any oxide buildup on the	If all recommended possible areas of
		tip of the electrode, or try replac-	misadjustment have been checked
		ing the electrode and nozzle.	and the problem persists, Contact
If the Safety LED is FLASHING, perform the following:
			your local Lincoln Authorized
Check the condition of the electrode.	1.	Replace both electrode and noz-	Field Service Facility.
The maximum wear depth in the		zle if electrode is excessively
center of the electrode tip is approxi-		worn. Otherwise, use a piece of
mately .060" relative to the surround-		fine emery cloth to remove any
ing tip. A green and erratic arc will		oxide buildup on the tip of the
indicate definite electrode failure as		electrode. Even if consumables
explained in the "Consumable Life"		appear to be in good working
section of this manual.		order, it is possible that they are
		the cause of the problem. Try
		replacing.
Check the conditions of the inside of	1.	If debris has collected, rub the
the nozzle. Make sure that both the		electrode on the inside bottom of
electrode and nozzle are not dirty,		the nozzle to remove any oxide
oily, or corroded.		layer that may have built up. If
		problems persist, try replacing
		consumables.
			NOTE: Make sure that consumables
Remove consumables from torch	1.	If torch head is contaminated, take
			are Lincoln Electric brand consum-
and check inside of torch head for		a dry cotton swab and clean out	able parts. These parts are patented
contamination. Check incoming air-		the pollutants. If needed, replace	and using any other replacement
flow for contaminants.		air filter and check/change air sup-	consumables may cause damage to
		ply. For more information, refer to	the torch or reduce cut quality. Also
		the "Gas Input Connections" sec-	be sure to check that the nozzle is
		tion in the manual.	the correct part number (as identified
Make sure there is a Lincoln PCT 80	1. After verifying that the torch and		on the top and side of the nozzle) for
torch connected properly to the Pro-		consumables are properly set in	the Pro-Cut being used.
Cut 55 and that the consumables are		place, and the problem still per-
properly installed. Make sure the		sists, contact your local Lincoln
shield cup is hand tight. Do not use pli-		Authorized Field Service Facility.
ers or over-tighten.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

PRO-CUT 55