Lincoln Electric POWER WAVE S500 Service Manual page 56

F-8
Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
The arc is excessively long and
erratic.
The welding starting is poor.
The end of the weld is not accept-
able.
The ArcLink wirefeeder will not
power up.
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)
WELDING PROBLEMS
1. In the wirefeeder make sure the
correct wire drive and gear ratio
have been selected for the weld-
ing process being used.
2. Make sure the shielding gas is
correct for the welding process
being used. Also make sure the
flow rate is correct.
1. Make sure the driver roll tension
on the wirefeeder is adjusted cor-
rectly. Also the welding wire
should travel freely through wire
feeding path. Check the welding
tip for blockage.
2. Make sure the shielding gas flow
is correct.
1. Make sure all of the settings for
Burnback and Crater states are
set correctly for the welding
process being used. Verify that
the Burnback has a value other
than 0.
2. Verify the burnback set points for
workpoint, trim and wave values.
3. Make sure the shielding gas flow
is adequate.
1. Check the ArcLink cable con-
necting the Power Wave
to the ArcLink wirefeeder.
CAUTION
POWER WAVE
RECOMMENDED
COURSE OF ACTION
1. Perform
Voltage Calibration Procedure.
N/A.
N/A.
1. Perform the 40 Volt DC Bus
S500 Board Test.
®
® S500
F-8
the Current and