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 for electrical troubleshooting assistance before you proceed. Call 216-
383-2531 or 1-800-833-9353.

PROBLEMS
(SYMPTOMS)

POSSIBLE AREAS OF
MISADJUSTMENT(S)

RECOMMENDED
COURSE OF ACTION

FUNCTION PROBLEMS

No wire feed when gun trigger is
activated. The drive rolls do not
turn. The digital meter does light
but reads only SET voltage and
wire speed values.

1. The Ground Lead Protector

may have tripped. Reset and
clear possible fault between
electrode circuit and feeder
frame.

2. The gun trigger may be faulty.

1. The 1CR relay on the power PC

board may be faulty. Check or
replace.

2. Check resistor R1. Normal

resistance is 2 ohms.

3. Perform the

Trigger

Transformer T2 Test.

4. Perform the

Wire Drive Motor