Plasma PTW 1500, Manual

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12
Troubleshooting
WARNING! An electric shock can be fatal. Before carrying out any work on the
plasma torch:
-
switch the power source and plasma device mains switch to the „O“ positi-
on
- disconnect the power source and plasma device from the mains
- put up an easy-to-understand warning sign to stop anybody inadvertently
switching it back on again
Safety
Troubleshooting
Pilot arc not igniting
Cause: Tungsten electrode missing
Remedy: Insert tungsten electrode
Cause: Plasma nozzle and tungsten electrode too far apart
Remedy: Position tungsten electrode correctly
Cause: Plasma nozzle and tungsten electrode touching or too close (short circuit
between plasma nozzle and tungsten electrode)
Remedy: Position tungsten electrode correctly
Copper droplets on the plasma nozzle after a short welding time
Droplet formation on the plasma nozzle is a sign that it is badly damaged: the copper in
the plasma nozzle has melted as a result of excess temperatures and is escaping.
Cause: Loading values too high
Remedy: Replace plasma nozzle, reduce load