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Turn on the machine using the switch U.
Use the button V to select the LED D (PROG). Turn the
knob I until the display M shows the abbreviation TIG.
Using the knob L, select the type of procedure TIG to
use, the display N displays 1T to use a torch without start
button Art.1275, 2T for using the torch Art.1277 in 2-
stage mode, and 4T to use the torch Art.1277 in 4-stage
mode.
Connect the gas hose to the outlet of the pressure regu-
lator of an ARGON cylinder.
Press the torch trigger and adjust the gas flow.
If using the torch Art. 1275 inside the torch is a valve that
blocks the gas flow when the trigger is released.
Use a 2% thorium-covered tungsten electrode (red strip),
diameter 1.6 ( 1/16" ).
Adjust the welding current using the knob I.
Strike the arc by contact using a firm, rapid stroke.
Remember to shut off the machine and close the gas
cylinder valve when you have finished welding.
8 MAINTENANCE
Periodically make sure that the welding machine and all
connections are in good condition to ensure operator
safety. After making a repair, be careful to arrange the
wiring in such a way that the parts connected to the
power supply are safely insulated from the parts con-
nected to the welding circuit. Do not allow wires to come
into contact with moving parts or those that heat up dur-
ing operation. Mount the clamps as on the original
machine to prevent, if a conductor accidentally breaks or
becomes disconnected, a connection from occurring
between power supply and the welding circuits.
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