Lincoln Electric POWER WAVE C300 Service Manual page 28

F-9
Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
When the gun trigger is
activated the wire will not feed.
The welding open circuit voltage
is present.
The wire drive speed is high and
uncontrollable.
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely,
contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed.
Call 1-888-935-3877.
TROUBLESHOOTING AND REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
WIRE FEEDING PROBLEMS
Check for obstructions in the
wire feeding path.
The gun tip may be faulty.
The wire feed will not function
if the machine is in the FCAW
(stick) or TIG mode.
Make sure the wire feed setting
is correct for the process being
used.
CAUTION
POWER WAVE® C300
RECOMMENDED
COURSE OF ACTION
Perform the FeedHead Board
Test.
Perform the Wire Drive
Motor Test.
Perform the FeedHead Board
and Tachometer Feedback
Test.
F-9