Lincoln Electric IM725 Troubleshooting Guide, Problems Possible Areas Symptoms Misadjustments

E-2 TROUBLESHOOTING E-2

TROUBLESHOOTING GUIDE

Observe Safety Guidelines detailed in the beginning of this manual.

PROBLEMS	POSSIBLE AREAS OF
(SYMPTOMS)	MISADJUSTMENT(S)
	OUTPUT PROBLEMS
Major physical or electrical damage	Contact your LOCAL LINCOLN
is evident.	AUTHORIZED FIELD SERVICE
	FACILITY.
No wire feed, weld output or gas	1. Make sure correct voltage is
flow when gun trigger is pulled. Fan	applied to the machine (115
does NOT operate.	vac).
	2. Make certain that power switch
	is in the ON position.

No weld output or wire feed when	Contact your LOCAL LINCOLN
gun trigger is pulled. Fan runs and	AUTHORIZED FIELD SERVICE
gas flows normally.	FACILITY.
No weld output when gun trigger is	1.	Arc voltage may be set too low.
pulled. Fan runs, gas flows and
wire feeds normally.	2.	Gun tip may be worn – Replace.
	3.	Check for correct input voltage
		to machine.
	4.	Gun or work cable may be
		faulty.
No Wire feed, weld output or gas	1.	Check the circuit breaker locat-
flow when the gun trigger is pulled -		ed in the machine’s wire drive
Fan operates normally.		compartment. Reset if tripped.
	2.	The thermostat may be tripped
		due to overheating. Let machine
		cool. Weld within the duty cycle
		or remove any air obstruction to
		machine.
	3.	Wire feed motor may be over-
		loaded. Correct feeding prob-
		lem.

RECOMMENDED COURSE OF ACTION

Contact your local Lincoln Authorized Field Service Facility.

4. Gun trigger may be faulty.

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 LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed.

SP-135 PLUS