Maintenance; Possible Problems And Remedies; Procedure For Welder Assembly And Disassembly - CEA PROJECT 2100 Manuel D'instructions

7) The "Lift" function strikes the arc when the TIG torch electrode
comes into contact with the workpiece and is then removed
(see Fig. D).
8) Carry out TIG welding.
PART TO BE WELDED
The part to be welded must always be connected to earth in order
to reduce electromagnetic emission. Much attention must be af-
forded so that the earth connection of the part to be welded does
not increase the risk of accident to the user or the risk of damage
to other electric equipment.
When it is necessary to connect the part to be welded to earth, you
should make a direct connection between the part and the earth
shaft. In those countries in which such a connection is not allowed,
connect the part to be welded to earth using sui table capacitors,
in compliance with the national regulations.

Maintenance

ATTENTION: before carrying out any inspection of the inside of
the generator, disconnect the system from the supply.
SPARE PARTS
Original spare parts have been specially designed for our equi-
pment. The use of non-original spare parts may cause varia tions
in performance or reduce the foreseen level of safety.
We decline all responsibility for the use of non-original spare parts.
GENERATOR
As these systems are completely static, proceed as follow:
• Periodic removal of accumulated dirt and dust from the inside
of the generator, using compressed air. Do not aim the air jet
directly onto the electrical components, in order to avoid dam-
aging them.
• Make periodical inspections in order to individuate worn cables
or loose connections that are the cause of overhea ting.

Possible problems and remedies

The supply line is attributed with the cause of the most common
difficulties. In the case of breakdown, proceed as follows:
1) Check the value of the supply voltage.
2) Check that the power cable is perfectly connected to the plug
and the supply switch.
3) Check that the power fuses are not burned out or loose.
4) Check whether the following are defective:
• The switch that supplies the machine.
• The plug socket in the wall.
• The generator switch.
NOTE: given the required technical skills necessary for the repair
of the generator, in case of breakdown we advise you to contact
skilled personnel or our technical service department.
Procedure for welder assembly
and disassembly
Proceed as follows:
• Undo the screws securing the cover to the front and rear panel.
• Remove the cover from its seat.
Proceed the other way round to re-assemble the welder.
FIG. D
10
2000HA39