PRO-POINT MIG-ARC-TIG 145A Manuel De L'utilisateur page 30

8619470
TROUBLESHOOTING
Visit a Princess Auto Ltd. location for a solution if the tool does not function properly or parts
are missing. If unable to do so, have a qualified technician service the tool.
ARC (STICK) WELDING
PROBLEM(S)
No arc.
Porosity − small cavities
or holes resulting from
gas pockets in weld
metal.
Excessive Spatter.
Weld sits on top, lack of
fusion.
Lack of penetration.
Excessive penetration -
burn through.
Uneven weld appearance. Unsteady hand, wavering
Electrode welds with
different or unusual arc
characteristic.
Distortion − movement of
base metal during welding.
30
145A MULTI-PROCESS MIG-ARC-TIG WELDER
POSSIBLE CAUSE(S)
1. Incomplete welding circuit
2. Wrong mode selected
3. No power supply
1. Arc length too long
2. Workpiece dirty,
contaminated or moisture
3. Damp electrodes
1. Amperage too high
2. Arc length too long
1. Insufficient heat input.
2. Workpiece dirty,
contaminated or moisture.
3. Poor welding technique.
1. Insufficient heat input.
2. Poor welding technique.
3. Poor joint preparation.
1. Excessive heat input.
2. Incorrect travel speed.
hand.
Incorrect polarity.
1. Excessive heat input.
2. Poor welding technique.
3. Poor joint preparation and
or joint design.
SUGGESTED SOLUTION(S)
1. Check earth lead is connected. Check all
cable connections.
2. Check that ARC is selected on the Welding
Mode knob (F).
3. Check that the machine is switched on and
has a power supply.
1. Shorten the arc length.
2. Remove moisture and materials like paint,
grease, oil and dirt, including mill scale
from base metal.
3. Use only dry electrodes.
1. Decrease the amperage or choose a larger
electrode.
2. Shorten the arc length.
1. Increase the amperage or choose a larger
electrode.
2. Remove moisture and materials like paint,
grease, oil and dirt, including mill scale
from base metal.
3. Use the correct welding technique or seek
assistance for the correct technique.
1. Increase the amperage or choose a larger
electrode.
2. Use the correct welding technique or seek
assistance for the correct technique.
3. Check the joint design and fit up, make sure
the material is not too thick. Seek
assistance for the correct joint design and
fit up.
1. Reduce the amperage or use a smaller
electrode.
2. Try increasing the weld travel speed.
Use two hands where possible to steady up,
practice your technique.
Change the polarity; check the electrode
manufacturer for correct polarity.
1. Reduce the amperage or use a smaller
electrode.
2. Use the correct welding technique or seek
assistance for the correct technique.
3. Check the joint design and fit up, make sure the
material is not too thick. Seek assistance for the
correct joint design and fit up.
For technical questions call 1-800-665-8685
V1.0