Lincoln Electric PIPEFAB CE, Operator'S Manual, Page: 23 / 100

PIP E FAB™ WELDING SYSTEM INSTALLATION
A-8
WIRE DRIVE PRESSURE SETTING
Most wires operate well with a pressure se � ng of “2”. The best drive roll pressure varies with wire
type, wire surface, lubrica � on and hardness. Too much pressure may crush the wire or cause
"birdnes � ng", but too li � le pressure could cause slippage.
Se � ng the drive roll pressure
1. Press the end of the gun against a solid object that is electrically isolated from the welder output and
press the gun trigger for several seconds.
2. If the wire "birdnests" or jams, the drive roll pressure is too high. Reduce the pressure by one turn of
the knob, run new wire through the gun, and repeat step 1.
3. If the only result is slippage, disconnect the gun and pull the gun cable forward about 6" (150mm).
There should be a slight waviness in the exposed wire. If there is no waviness, increase the pressure
se
� ng one turn, reconnect the gun and repeat the above steps.
FIGURE A.8