Troubleshooting; Troubleshooting Guide - ESAB PT-24 Instruction Manual

SECTION 6
6.0

Troubleshooting Guide

A. Reduced Consumable Life
Cutting Up Skeletons
Cutting skeletons (discarded material left after all pieces have been removed from a plate) to facilitate their re-
moval from the table can adversely affect electrode life by:
Causing the torch to run off the work.
•
Continuous Pilot Arc edge starts
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Greatly increasing the frequency of starts. This is mainly a problem for O2 cutting and can be alleviated
•
by choosing a path with a minimum number of starts.
Increase likelihood that the plate will spring up against the nozzle causing a double arc. This can be miti-
•
gated by careful operator attention and by increasing standoff and reducing cutting speeds. If possible,
use a gas torch for skeleton cutting.
Height Control Problems
Torch diving is usually caused by a change in arc voltage when an automatic height control is in use. Usu-
•
ally the voltage change is the result of plate falling away from the arc. These problems can effectively be
eliminated by disabling the height control and extinguishing the arc earlier when finishing the cut on a
falling plate.
Diving can also be caused by a faulty height control.
•
Piercing Standoff Too Low
Starting on edges with
continuous pilot arc
Work Flipping
Catching on Pierce Spatter
Pierce not complete
before starting
Increase pierce standoff.
Position torch more carefully or start on adjacent scrap material.
The nozzle may be damaged if the torch hits a flipped up part.
Increase standoff or start with longer lead-in.
Increase initial delay time.
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TROUBLESHOOTING