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TROUBLESHOOTING
Rough wire feeding or wire will not
feed but drive rolls are turning.
1. The gun cable may be kinked or twisted.
2. The wire may be jammed in the gun cable, or
gun cable may be dirty.
3. Check drive roll tension and position of
grooves.
4. Check for worn or loose drive rolls.
5. The electrode may be rusty or dirty.
6. Check for damaged or incorrect contact tip.
7. Check wire spindle for ease of rotation and
adjust break tension knob if necessary.
The wire feed stops while welding. When trigger
is released and pulled again the wire feed starts.
1. Check the wire feed drive rolls and motor for
smooth operation.
2. Check for restrictions in the wire feed path.
Check the gun and cable for restrictions.
3. Make sure gun liner and tip are correct for
wire size being used.
4. Make sure drive rolls and guide plates are
clean and are the correct size.
5. Make sure the spot timer knob is set to off.
6. Check spindle for ease of rotation.
Gas does not flow when gun trigger is pulled.
1.
Make sure gas supply is connected proper-
ly and turned "on".
2. If the gas solenoid does actuate (click) when
the gun trigger is pulled there may be a
restriction in the gas supply line.
3. The gun cable assembly may be faulty.
Check or replace.
4. If gas solenoid does not operate when gun
trigger is pulled the problem is within the
POWER MIG® 255XT.
5. Make sure the gun is pushed all the way into
gun mount and is properly seated.
CAUTION
If for any reason you do not understand the test pro-
cedures or are unable to perform the tests/repairs
safely, contact your LOCAL AUTHORIZED LIN-
COLN ELECTRIC FIELD SERVICE FACILITY for
assistance before you proceed.
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