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The welding gun connector overheats
•
Make sure the connector is properly connected to the wire feeder.
•
Make sure the current transfer surface and the connector pins of the gun connector are clean and undamaged.
The gun vibrates too much during welding
•
Check the tightness of the contact tip adapter and contact tip.
•
Check the motor current.
•
Check the wire liner (e.g. for dirt and to ensure that the wire liner has been cut properly).
•
Check the filler wire. It must be straight and start coiling when it comes out from the contact tip. If not, check
the tightness of the feeding rolls.
•
Check the filler wire batch for any quality issues with the wire.
Weld quality:
Dirty and/or poor weld quality
•
Check that the shielding gas has not run out.
•
Check that the shielding gas flow is unobstructed.
•
Check that the gas type is correct for the application.
•
Check the polarity of the gun/electrode.
•
Check that the welding procedure is correct for the application.
Varying welding performance
•
Check that the wire feed mechanism is adjusted properly.
•
Blow compressed air through the wire liner to check that it is not blocked.
•
Check that the wire liner is correct for the selected wire size and type.
•
Check the welding gun contact tip's size, type and wear.
•
Check that the welding gun is not overheating.
•
Check that the earth return clamp is properly attached to a clean surface of the workpiece.
High spatter volume
•
Check the welding parameter values and welding procedure.
•
Check the gas type and flow.
•
Check the polarity of the gun/electrode.
•
Check that the filler wire is correct for the current application.
© Kemppi
19
Flexlite GC
Operating manual - EN
1921860 / 2109
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