10
Connection of the plasma torch and adjustment of power supply is done as described under
paragraph A. Only the plasma torch has to be modified as follows:
Redrill the aperture of the torch tip to a diameter of 5,5 - 6,0 mm and slide out the electrode until it
protrudes about 1,5 mm beyond the tip face. Potentiometer
c
must be turned to 0 during this welding
procedure.
D. Switching off Plasma- and TIG-Pilot-Welding
To switch off the pilot arc, set switch
f
to mid position.
Wait about 15 sec. until the post flow time for the pilot gas has passed, before switching off the
machine with the main switch. During this time the electrode can cool down protected against
oxidation by the pilot gas.
Even in case of an emergency stop command by a automatic control the post flow process will be
initiated.
E. Manual Metal Arc Welding
1.
Remove TIG- or plasma-torch control cable plug (Water pump is now out of
operation).
2.
Connect electrode holder
3.
Set switch
k
to symbol
4.
Set switch
f
to mid position
5.
Keep button
E
depressed and adjust welding current. Amperage is preset at potentiometer
a
and can be read from ammeter
D
.
