Contact tip has a short service life
Cause:
Incorrect wirefeeder rollers
Remedy:
Use correct wirefeeder rollers
Cause:
Wire electrode worn due to excessive contact pressure on the wirefeeder roll-
ers
Remedy:
Reduce contact pressure on the wirefeeder rollers
Cause:
Wire electrode contains impurities/is corroded
Remedy:
Use high-quality wire electrode with no impurities
Cause:
Uncoated wire electrode
Remedy:
Use wire electrode with suitable coating
Cause:
Wrong dimension of contact tip
Remedy:
Use a contact tip of the correct dimension
Cause:
Duty cycle of welding torch has been exceeded
Remedy:
Shorten the duty cycle or use a more powerful welding torch
Cause:
Contact tip has overheated. No thermal dissipation as the contact tip is too
loose
Remedy:
Tighten the contact tip
NOTE!
When using CrNi, the contact tip may be subject to a higher degree of wear due to
the nature of the surface of the CrNi wire electrode.
Torch trigger malfunction
Cause:
Defective plug connection between welding torch and power source
Remedy:
Establish proper plug connections / have power source or welding torch ser-
viced
Cause:
Build up of dirt between torch trigger and torch trigger housing
Remedy:
Clean away the dirt
Cause:
Control line is faulty
Remedy:
Contact After-Sales Service
19