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B-7
OPERATION
B-7
CV/CC SWITCH
(See Figure B.2)
The CV/CC switch sets the wire
feed speed control method for the
wire feeder.
In the CV position, the wire feed
speed remains constant during
welding. A steady arc voltage is
regulated by the power source by
adjusting the arc current.
In the CC position, the wire feed
speed varies during welding. The
arc length is maintained by chang-
ing the wire feed speed.
COLD FEED PUSHBUTTON
(See Figure B.2)
When cold feeding, the wire
drive will feed electrode but nei-
ther the power source nor the
gas solenoid will be energized.
Adjust the speed of cold feed-
ing by rotating the WFS knob.
Cold feeding, or "cold inching"
the electrode is useful for
threading the electrode through
the gun.
CV
CC
LN-25 PRO EXTREME