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8611295
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.
MMA (STICK) WELDING
POSSIBLE CAUSE(S)
No arc
1. Incomplete welding
circuit
2. Wrong mode
selected
3. No power supply
Porosity − small cavities or holes resulting from gas pockets in
weld metal.
1. Arc length too long
2. Workpiece dirty,
contaminated or
moisture
3. Damp electrodes
Excessive Spatter.
1. Amperage too high
2. Arc length too long
Weld sits on top, lack of fusion.
1. Insufficient heat
input.
2. Workpiece dirty,
contaminated or
moisture.
3. Poor welding
technique.
40
ARC 170 DUAL VOLTAGE ARC/TIG WELDER
SUGGESTED SOLUTION(S)
1. Check earth lead is connected. Check all
cable connections.
2. Check the MMA selector switch is selected
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.
For technical questions call 1-800-665-8685
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