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Welding torch gets very hot
Cause:
Welding torch has been operated above the maximum welding current
Remedy:
Reduce welding power or use more powerful welding torch
Cause:
Welding torch is inadequately sized
Remedy:
Observe duty cycle and load limits
Cause:
For water-cooled systems only: Coolant flow too low
Remedy:
Check coolant level, coolant flow, coolant contamination, displacement of
the hosepack, etc.
Cause:
Tip of the welding torch too close to the arc
Remedy:
Increase stick out
Short service life of the contact tip
Cause:
Incorrect feed rollers
Remedy:
Use correct feed rollers
Cause:
Wear of the wire electrode due to excessive contact pressure at the feed
rollers
Remedy:
Reduce contact pressure at the feed rollers
Cause:
Wire electrode soiled/rusted
Remedy:
Use high-quality wire electrode without soiling
Cause:
Uncoated wire electrode
Remedy:
Use wire electrode with suitable coating
Cause:
Incorrect dimensions of the contact tip
Remedy:
Use contact tip of the correct size
Cause:
Duty cycle of the welding torch too long
Remedy:
Reduce duty cycle or use more powerful welding torch
Cause:
Contact tip overheats. No heat dissipation due to contact tip being fitted too
loosely
Remedy:
Tighten contact tip
NOTE!
In CrNi applications, greater contact tip wear may occur due to the surface finish
of the CrNi wire electrode.
Malfunction of the torch trigger
Cause:
Faulty plug connections between the welding torch and the power source
Remedy:
Establish correct plug connections/send power source or welding torch to
service team
Cause:
Soiling between torch trigger and torch trigger housing
Remedy:
Remove soiling
Cause:
Faulty control line
Remedy:
Notify service provider
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