Irregular wire feed speed
Hole in the contact tip is too narrow
Use a suitable contact tip
Faulty inner liner in welding torch
Check the inner liner for kinks, dirt, etc.
The feed rollers are not suitable for the wire electrode being used
Use suitable feed rollers
Feed rollers have the wrong contact pressure
Optimise the contact pressure
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Wirefeed problems
when using long hosepacks
Incorrect arrangement of hosepack
Arrange the hosepack in as straight a line as possible, avoid tight bends
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Welding torch becomes very hot
The specification of the welding torch is inadequate
Observe the duty cycle and loading limits
Only on water-cooled systems: Inadequate coolant flow
Check coolant level, coolant flow, for coolant contamination, etc. For further
information refer to the cooling unit operating instructions.
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Poor weld properties
Incorrect welding parameters
Check the settings
Poor ground earth connection
Ensure good contact to workpiece
Inadequate or no protective gas shield
Check the pressure regulator, gas hose, gas solenoid valve, torch gas con-
nection, etc.
Welding torch is leaking
Change the welding torch
Wrong contact tip, or contact tip is worn out
Replace the contact tip
Wrong wire alloy or wrong wire diameter
Check the wire electrode that has been inserted
Wrong wire alloy or wrong wire diameter
Check weldability of the base material
The shielding gas is not suitable for this wire alloy
Use the correct shielding gas
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