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Faults
Slag formation on
interfaces?
Arc stops during
cutting?
Insufficient
penetration?
Consumables wear
quickly?
• Maintenance and care
• Maintaining the burner
„
The consumables displayed in Figure F
are the electrode
8c
sleeve
. They can be replaced once
Cause of fault
„
Tool/material creates heat.
„
Cutting speed too low or current
too high.
„
Plasma burner component parts
8b
8c
8d
,
,
are worn.
„
Cutting speed too low.
„
Plasma burner
high and too far away from the
material.
„
Plasma burner component parts
8b
8c
8d
,
,
are worn.
„
Workpiece no longer connected
to the earthing cable.
„
Cutting speed too fast.
„
Metal is too thick.
„
Plasma burner component parts
8b
,
8c
,
8d
are worn.
„
Performance was overstretched.
„
Arc control time exceeded.
„
Incorrect plasma burner
assembly.
„
Insufficient air supply, pressure
too low.
„
Faulty air compressor.
8d
and the burner
Troubleshooting
„
„
„
„
8
is held too
„
„
„
„
„
„
„
„
„
„
the nozzle clamping sleeve
unscrewed.
„
The electrode
there is a crater of approximately
1.5 mm depth in the centre.
Allow the material to cool
down and then continue
cutting.
Increase the speed and/or
reduce the current until the
slag has been reduced to
a minimum.
Check and replace worn
parts.
Increase the cutting speed
until the problem no longer
exists.
Lower the plasma burner
8
to the recommended
height.
Check and replace worn
parts.
Check the connections.
Reduce the working
speed.
Several cycles necessary.
Check and replace worn
parts.
Material too thick,
increase the angle to
avoid material from being
blown back into the tip.
Do not control the arc for
more than 5 seconds.
Check the air filter, in-
crease the air pressure.
Check the performance
of the air compressor
and make sure the inlet
pressure is at least 100 PSI
(6.8 bar).
8b
has been
8d
must be replaced if
GB/IE/NI/CY/MT
19
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