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Welding torch gets very hot
Cause:
Only in multi-lock welding torches: Union nut of the torch body loose
Remedy:
Tighten union nut
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 from the feed
rollers
Remedy:
Reduce contact pressure from 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 correct dimensions for the contact tip
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!
Risk when using CrNi wire electrodes
Greater contact tip wear may result.
► In CrNi applications, greater contact tip wear may occur due to the surface finish of the
CrNi wire electrode.
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