Lincoln Electric CV-250 manual Options Troubleshooting Guide

E-6		TROUBLESHOOTING			E-6
	Observe all Safety Guidelines detailed throughout this manual
OPTIONS TROUBLESHOOTING GUIDE
K857 (or other) Remote Output Control
	PROBLEMS		POSSIBLE AREAS OF		RECOMMENDED
	(SYMPTOMS)		MISADJUSTMENTS(S)		COURSE OF ACTION
			PROBLEMS
Voltage control not functioning on		1.	Local/Remote switch in wrong	1.	Place switch in "Remote".
Remote Control.			position.
		2.	Faulty Local/Remote switch.	2.	Check and replace if found faulty.
		3.	Faulty Remote Control poten-	3.	Check and replace if found faulty.
			tiometer.
		4.	Leads or connections open in	4.	Check all leads and connections,
			control circuit.		internal or remote, for continuity;
					repair if necessary.
		5.	Faulty Control PC board.	5.	See PC Board Troubleshooting
					Procedure.
Voltage Adjust not functioning on the		1.	Local/Remote switch in the	1.	Place switch in "Local" position.
machine.			wrong position.
		2.	Faulty Local/Remote switch.	2.	Check and replace if found faulty.
		3.	Faulty Voltage Adjust	3.	Check and replace if found faulty.
			potentiometer.
		4.	Leads or connections open in	4.	Check all leads and connections,
			control circuit.		internal or remote, for continuity;
					repair if necessary.
		5.	Faulty Control PC board.	5.	See PC Board Troubleshooting
					Procedure.

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.

CV-250