E-3
TROUBLESHOOTING
E-3
V155-S
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.
Observe all Safety Guidelines detailed throughout this manual
PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
Oxidation
Tungsten inclusions
Porosity
Hot cracking
1. lnsufficient gas.
2. No protection on the back side.
1. lncorrect electrode sharpening.
2. Electrode too small.
3. Operating failure (contact of the
tip with the workpiece).
1. Dirt on the edges.
2. Dirt on the filler material.
3. Excessive travel speed.
4. Current intensity too low.
1 Unsuitable filler material.
2. High heat supply.
3. Dirty materials.
If all recommended possible areas of
misadjustment have been checked
and the problem persists,
Contact
your local Lincoln Authorized
Field Service Facility.
PROBLEMS IN TIG WELDING
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
Summary of Contents for INVERTEC V155-S 11326
Page 6: ...v SAFETY v EN 60974 10...
Page 7: ...vi SAFETY vi EN 60974 10...
