B-6
INSTALLATION
B-6
TIG WELDING (GTAW)
The
arcweld
®
machine has a built in Gas Solenoid
so a TIG Torch with gas hose inside is required. A
TIG Torch adapter is also required. Refer to the
accessories section for more informatin about TIG
Torches and required adapter. Most TIG welding is
done with DC(-) polarity shown here.(See Figure B.3
and B.4) If DC(+) polarity is necessary switch the
cable connections at the machine.
Connect the torch cable to the (-) terminal of the
machine and the work clamp to (+) terminal. Insert
the connector with key lining up with the keyway and
rotate approximately 1/4 turn clockwise. Do not over
tighten. Finally, connect the adapter of gas hose to
the gas outlet on the case front of machine to be
used. Also connect the trigger male connector to the
female connector on the case front.
Figure B.3
Figure B.4
STRIKING ARC OF TIG OPERATION
When the tungsten electrode touches the
workpiece, the short-circuit current is only 10A.
After generating arc, current can rise to the
preset welding current. If the tungsten electrode
touches the workpiece during welding, the
current will drop to 10A within 2s, which can
reduce tungsten damage and prolong the
tungsten electrode life.
PRECAUTION FOR HF ARC START
Welding cables should be as short as
possible.
Keep cables close to floor or earth and
place them straight as far as possible.
Place welding cable and work cable in
parallel as far as possible.
Don’t make the workpiece as a common
connection with other device’s grounding.
