Lincoln Electric 125 Operator's Manual page 28

WIRE FEEDER WELDERS (125, 140)
PROBLEMS
(SYMPTOMS)
Major physical or electrical damage is evi-
dent.
No wire feed, weld output or gas flow
when gun trigger is pulled. Fan does NOT
operate.
No wire feed, weld output or gas flow
when gun trigger is pulled.
Fan operates normally.
PROBLEMS
(SYMPTOMS)
No wire feed when gun trigger is pulled.
Fan runs, gas flows and machine has cor-
rect open circuit voltage (33V) – weld out-
put.
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.
Observe all Safety Guidelines detailed throughout this manual
POSSIBLE
CAUSE
OUTPUT PROBLEMS
"Do not Plug in machine or turn it on".
Contact your local Authorized Field Service
Facility.
1. Make sure correct voltage is applied to
the machine.
2. Make certain that power switch is in
the ON position.
3. Make sure circuit breaker is reset.
1. The thermostat may be tripped due to
overheating. Let machine cool. Weld at
lower duty cycle.
2. Check for obstructions in air flow.
Check Gun Trigger connections. See
Installation section.
3. Gun trigger may be faulty.
POSSIBLE
CAUSE
FEEDING PROBLEMS
1. If the wire drive motor is running make
sure that the correct drive rolls are
installed in the machine.
2. Check for clogged cable liner or con-
tact tip.
3. Check for proper size cable liner and
contact tip.
4. For 140Amp machine only:
• Check Magnum 100SG/Magnum 100L
switch is properly switched to activate
proper gun.
RECOMMENDED
COURSE OF ACTION
If all recommended possible areas of
misadjustment have been checked and
the problem persists, Contact your local
Lincoln Authorized Field Service
Facility.
RECOMMENDED
COURSE OF ACTION
If all recommended possible areas of
misadjustment have been checked and
the problem persists, Contact your local
Lincoln Authorized Field Service
Facility.
CAUTION
E 2
TROUBLE SHOOTING