Operation Manual

X8 MIG WELDER 2.5 Troubleshooting
Problem Recommended actions
The welding system stops working
• Gas-cooled gun may have overheated. Wait for it to cool
down.
• Check that none of the cables is loose.
• The wire feeder may have overheated. Wait for it to cool
down and see that the welding current cable is properly
attached.
• The power source may have overheated. Wait for it to cool
down and see that the cooling fans work properly and the air
flow is unobstructed.
Table 7: Wire feeder
Problem Recommended actions
The filler wire on the spool unravels
• Check that the spool locking cover is closed.
The wire feeder does not feed the filler
wire
• Check that the filler wire has not run out.
• Check that the filler wire is properly routed through the feed
rolls to the wire liner.
• Check that the pressure handle is properly closed.
• Check that the feed roll pressure is adjusted correctly for the
filler wire.
• Check that the Kemppi Gun Adapter is properly connected to
the wire feeder.
• Blow compressed air through the wire liner to check that it is
not blocked.
Table 8: Gas-cooled welding guns
Problem Recommended actions
The wire burns into the contact tip
• Make sure the size and type of the current tip and liner are
suitable for the filler wire.
• Make sure the wire liner is clean.
• Make sure the wire liner does not make any steep loops.
• Check the motor current level. If the current is too high, there
may be problems in the wire liner.
• Check the tightness of the feeding rolls. Too tight feeding
rolls may affect soft filler wires, such as aluminium and flux-
cored wires.
OPERATING MANUAL | EN 167
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KEMPPI | 2018-09-28