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• unnecessarily long pilot arc,
• low arc pressure.
5 HELPFUL HINTS
• If the system air contains considerable amounts of
moisture and oil, it is best to use a drying filter to avoid
excessive oxidation and wear on consumer parts, dam-
age to the torch and a reduction in the speed and quality
of the cutting.
• Make sure that the new electrode and nozzle to be
mounted are thoroughly clean and degreased.
• Always use original spare parts to avoid damaging
the torch.
6 MAINTENANCE
Any maintenance operation must be carried out by
qualified personnel in compliance with standard CEI
26-29 (IEC 60974-4).
6.1 GENERATOR MAINTENANCE
In the case of maintenance inside the machine, make
sure that the switch C is in position "O" and that the
power cord is disconnected from the mains.
Even though the machine is equipped with an automatic
condensation drainage device that is tripped each time
the air supply is closed, it is good practice to periodically
make sure that there is no condensation accumulated in
the water trap I (fig.1).
It is also necessary to periodically clean the interior of the
machine from the accumulated metal dust, using com-
pressed air.
6.2 PRECAUTIONS AFTER REPAIRS.
After making repairs, take care to organize the wiring so
that there is secure insulation between the primary and
secondary sides of the machine. In particular, make sure
that the casing 50 is mounted (see exploded drawing).
Do not allow the wires to come into contact with moving
parts or those that heat up during operation. Reassemble
all clamps as they were on the original machine, to pre-
vent a connection from occurring between the primary
and secondary circuits should a wire accidentally break
or be disconnected.
Also mount the screws with geared washers as on the
original machine.
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