Lincoln Electric IM845 POWER WAVE 355M - Manual (Page 33)

E-7 TROUBLESHOOTING E-7
POWER WAVE ® 355M
Observe all Safety Guidelines detailed throughout this manual
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.
CAUTION
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
General degradation of the weld per-
formance
Excessively long and erratic arc.
If Wire Feed Speed is in Question.
Inch Per Minute = (IPM)
1.Check for feeding problems, bad
connections, excessive loops in
cabling, etc.
2. Verify weld mode is correct for
processes.
3. The power source may require
calibration.
4. Check the actual current dis-
played on the Power Feed ® 10 vs.
actual current measured via exter-
nal meter.
5. Check the actual voltage dis-
played on the Power Feed ® 10 vs.
actual voltage measured via exter-
nal meter.
6. Check the actual WFS displayed
on the Power Feed ® 10 vs. actual
WFS measured via external
meter.
1. Check for proper configuration
and implementation of voltage
sensing circuits.
1. Check system with K283 speed
meter tester.
2. Manual Check by:
• Turning off all run in features of
the feeder. Cut wire flush to
weld gun electrode tip. Feed
wire for 6 seconds. Measure
feed wire length from the end of
the electrode tip to the end of
the feed wire. Multiple 10 to the
measured length.
Example: You mesured 24” , then
your results will be 240 IPM.
(10 x 24 = 240 IPM)