Parts - Lincoln Electric LN-15 WIRE FEEDER Operator's Manual

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PROBLEMS
(SYMPTOMS)
No output, no display.
The display lights, the wire drive
turns, but there is no welding output.
The actual wire feed speed does not
match the setting on the display.
The arc burns back to the tip.
Porosity in the weld.
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.
TROUBLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
POSSIBLE AREAS OF
MISADJUSTMENTS(S)
1. The power source is not turned
on.
2. The work clip lead is not making a
good connection.
3. Failed power supply board.
1. The contactor has failed.
1. The 83% wire feed speed dual
procedure is activated.
2. The LN-15 is in the CC mode
instead of the CV mode. Watch
the LN-15 display during power-up
to verify the selected mode.
WELDING I I SSUES
1. The spool of electrode is tangled.
2. The electrode and work leads are
reversed (welding with the wrong
polarity.)
3. The liner is clogged.
4. The contact tip is worn.
5. The wire drive tension is improp-
erly set.
1. The part being welded is wet, dirty
or rusty.
2. The electrode being used is wet,
dirty or rusty.
3. There is insufficient shielding gas
flow from possible cuts in the gas
hose
4. There is moisture or water in the
shielding gas line.
5. There is too much shielding gas
6. There is too much wind or drafts.
7. The arc voltage is set too high.
8. The wrong shielding gas is being
used.
LN-15 ACROSS THE ARC MODEL
If all recommended possible areas of
misadjustment have been checked
and the problem persists, Contact
your local Lincoln Authorized
Field Service Facility.
CAUTION
RECOMMENDED
COURSE OF ACTION
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