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4.9 Reversing polarity
Some ller wires are recommended to be welded with the gun in the minus pole (–), so the
polarity should be reversed. Check the recommended polarity from the ller wire package.
1. Disconnect the machine from the mains.
2. Expose the terminal connections by bending the protective rubber covers away from the
terminal.
3. Remove the terminal tightening nuts and washers. Note the correct order of the
washers!
4. Interchange the cables.
5. Install the washers in place and re-tightening the securing nuts.
6. Replace the rubber terminal covers. The rubber covers must always protect the terminals
during use.
4.9.1 Dusty work environments
If the working environment frequently carries airborne metallic dust particles due to
fabrication practices, it is recommended that you install a lter casette to the machine.
Particle lter cassette's ordering code: W005852.
Fitting the particle lter cassette provides additional protection to your welding machine and
lengthens its service intervals.
Filter maintenance
Once tted, the lter should be removed, checked and cleaned with dry compressed air
weekly. Every six months, wash the lter in a solution of warm soapy water. Allow to dry
thoroughly before replacing.
17
© Kemppi Oy / 1135
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