Kemppi FastMig M 320 - Manual (Page 11)

EN
4. MANUAL METAL ARC WELDING
The FastMig power source can be used in electrode welding by connecting a FastMig
MXF 63, MXF 65 or MXF 67 wire feeder to it. The power source can be made suitable for
electrode welding without a wire feeder by connecting an R10 or R20 remote control to the
X14 or X15 terminal at the back of the power source for welding current adjustment, and the
welding power cable connected to the power source’s (+) connector X11 or X12.
5. MAINTENANCE
When considering and planning routine maintenance, please consider the frequency of
machine use and the working environment.
Correct operation of the machine and regular maintenance will help you avoid unnecessary
downtime and equipment failure.
NOTE! Disconnect the machine from the mains before handling the electrical cables.
5.1 Daily maintenance
• Check the overall condition of the welding gun. Remove welding spatter from the
contact tip and clean the gas nozzle. Replace worn or damaged parts. Only use original
Kemppi spare parts.
• Check the condition and connection of the welding circuit components: welding gun,
earth return cable and clamp, sockets and connectors.
• Check the condition of the feed rolls, needle bearings and shafts. Clean and lubricate
bearings and shafts with a small quantity of light machine oil if necessary. Assemble,
adjust and test function.
• Check that the feed rolls are suitable for the filler wire you are using, and that their
pressure adjustment is correct.
5.2 Periodic maintenance
NOTE! Periodic maintenance should only be carried out by a suitably qualified person. Disconnect
the plug of the machine from the mains socket and wait about 2 minutes (capacitor charge) before
removing the cover plate.
Check at least every half year:
• Electric connectors of the machine – clean any oxidized parts and tighten loose
connections.
NOTE! You must know the correct tension torques values before starting the reparation of the loose
joints.
Clean the inner parts of the machine from dust and dirt e.g. with a soft brush and vacuum
cleaner. Also clean the ventilation net behind the front grill.
Do not use compressed air, there is a risk that the dirt will compact even more tightly into
gaps of cooling profiles.
Do not use pressure washing devices.
Only an authorized trained electrician should carry out repairs to Kemppi machines.
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© Kemppi Oy / 1515