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Irregular wire speed
Cause: Braking force has been set too high
Remedy: Loosen the brake
Cause: Hole in the contact tip is too narrow
Remedy: Use a suitable contact tip
Cause: Faulty inner liner in welding torch
Remedy: Check the inner liner for kinks, dirt, etc. and replace if necessary
Cause: The wirefeeder rollers are not suitable for the wire electrode being used
Remedy: Use suitable feed rollers
Cause: Feed rollers have the wrong contact pressure
Remedy: Optimise the contact pressure
Wirefeed problems
Cause: Incorrect arrangement of welding torch hosepack
Remedy: Arrange the welding torch hosepack in as straight a line as possible, avoiding
bends
Welding torch becomes very hot
Cause: The design dimensions of the welding torch are not sufficient for this task
Remedy: Observe the duty cycle and loading limits
Poor weld properties
Cause: Incorrect welding parameters
Remedy: Check the settings
Cause: Poor ground earth connection
Remedy: Ensure good contact to workpiece
Cause: Inadequate or no protective gas shield
Remedy: Check the pressure regulator, gas hose, gas solenoid valve, torch gas con-
nection, etc.
Cause: Welding torch is leaking
Remedy: Change the welding torch
Cause: Wrong contact tip, or contact tip is worn out
Remedy: Replace the contact tip
Cause: Wrong wire alloy or wrong wire diameter
Remedy: Check the wire electrode that has been inserted
Cause: Wrong wire alloy or wrong wire diameter
Remedy: Check weldability of the base material
Cause: The shielding gas is not suitable for this wire alloy
Remedy: Use the correct shielding gas
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