Kemppi Pulse 2800 MVU - Manual (Page 8)

8 – Kempact™ pulse 800 mVu automotiVe / 0709 © Kemppi oy
3. OPERATION
3.1. MAIN SwITCH AND SIGNAL LIGHTS
With the switch in the ’I’ position, the primary and control circuits of the machine become live
and the ’ON’ signal light on the panel lights up. The welding circuit receives voltage when the gun
switch is operated or when the wire feed test switch is pressed. Always use the main switch to turn
the machine on and off with the main switch; do not use the power plug for this purpose.
3.2. TO SELECT POLARITY FOR wELDING
Solid wire is usually welded in the +pole and gasfree filler wires in the - pole gun. When welding
with other filler wires, check for the recommended polarity on the package or consult the supplier
of the product. The welding of very thin steelplates (0.5 to 0.7 mm) a - polarity might also work
best for solid wire.
3.2.1. Changing the polarity
Only a service shop authorised by Kemppi may change the polarity.
3.3. PANEL
+ pole
- pole