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5.1 Troubleshooting
The problems and the possible causes listed are not definitive, but suggest some typical situations that may turn up dur-
ing normal use of the welding system. For further information and assistance, contact your nearest Kemppi service
workshop.
General:
The welding system does not power up
•
Check that the mains cable is plugged in properly.
•
Check that the mains switch of the power source is at the ON position.
•
Check that the mains power distribution is on.
•
Check the mains fuse and/or the circuit breaker.
•
Check that the earth return cable is connected.
The welding system stops working
•
The 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 prop-
erly 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.
Wire feeder:
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.
•
Blow compressed air through the wire liner to check that it is not blocked.
Welding gun:
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.
The gun overheats
•
Make sure the gun's neck is correctly connected to the handle.
>> Check that the rotating neck is not loose or over-tightened by turning the rotating neck.
•
Make sure that the contact tip adapter is properly tightened and the contact tip properly attached to it.
•
Make sure that the welding parameters are within the range of the welding gun and the neck.
The gun neck overheats
•
Make sure you are using original Kemppi consumable and spare parts. Incorrect spare part materials may cause
the overheating of the neck.
© Kemppi
18
Flexlite GC
Operating manual - EN
1921860 / 2109
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