Changing Welding Polarity - Kemppi MasterMig 353 Operating Manual

3.6 Changing welding polarity

Welding polarity needs to changed for TIG welding. Also, some filler wires require changing the welding polarity. Check
the recommended welding polarity on the filler wire package.
Before handling electrical parts, ensure the welding device is disconnected from the mains.
Tools needed:
17 mm
Turn off the welding device and disconnect it from the mains.
1. Open the wire feed cabinet hatch.
2. Remove the protective rubber covers from the polarity terminals.
Use caution when handling electrical parts.
3. Remove the terminal tightening bolts and washers.
4. Connect the cables to the polarity terminals according to the polarity recommendation.
5. Replace the washers and bolts. Tighten to 17 Nm torque.
6. Replace the protective rubber covers.
© Kemppi
51
MasterMig 353, 355
Operating manual- EN
1921960 / 2217