Generator Maintenance; Precautions After Repairs - Elettro CF Plasma Series Instructions Manual

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Always use original spare parts to avoid damaging
the torch.
5. MAINTENANCE
Always cut off the power supply to the machine before any
operation, which must always be carried out by qualified
personnel.

5.1. GENERATOR MAINTENANCE

In the case of maintenance inside the machine, make sure
that the switch I (pict. 1) is in position "O" and that the
power cord is disconnected from the mains.
Also make sure that there is no voltage at the ends of the
IGBT group capacitors.
It is good practice to periodically make sure that there is no
condensation accumulated in the water trap M (pict.1).
It is also necessary to periodically clean the interior of the
machine from the accumulated
compressed air.
5.1.1 Troubleshooting
The LED B (pict. 1) lights when the following conditions
occur:
LED B CONDITION
Upon equipment start-
Steadily lit
up
Incorrect IGBT drive
Steadily lit
voltage
Reed contact closed
Steadily lit during equipment
start-up
5.2. TORCH MAINTENANCE (See pages 27)
Replacement of consumable parts
The parts subject to wear are electrode 23, diffuser 24 and
nozzle 25. All parts may be only replaced after loosening
nozzle holder 26. Electrode 23 should be replaced when a
1/16" (1,5 mm) deep crater is created in the middle. Nozzle
25 should be replaced when its central hole is damaged or
enlarged in comparison with the new part.
The use of a worn electrode quickly wears out the nozzle.
When the electrode is worn, the power cut of the machine
is reduced. A delayed replacement of electrode and nozzle
causes overheating of consumable parts and reduces the
life of diffuser 24. Make sure that after replacing it, nozzle
holder 26 is tight enough.
ATTENTION! Nozzle holder 26 should be screwed on
head only when electrode 23, diffuser 24 and nozzle 25
are assembled.

5.3. 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. 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 prevent 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.
metal dust, using
SOLUTION
Wait 5 sec
Contact technical
service
Contact technical
service
9