Climax AUTOBOREWELDER BW3000, Operating Manual

Page: 59 / 150

P/N 52815, Rev. 7 Page 45
3. Attach one end of the gas hose to a regulated source of shielding gas, and
the other end to the quick connect at the wirefeeder.
4. On the control box, press the
PURGE
button to check the gas flow rate and
clear the system of unwanted gases. A flow of 35 cfh (l m
3
/hour) is good.
CAUTION
Always use #2 weld cable. Do not use a larger size to get a higher
current capacity. Higher currents will damage the BoreWelder. Check
that you have a good ground. Poor ground leads to poor arc quality,
poor arc stability, and increased risk of electrical shock.
3.3.12 Setting the axial and rotational start positions
To set the axial start position, jog the torch along its long axis until the nozzle is
positioned properly to start welding at the end of the hole farthest from the Bore-
Welder. Typically, the wire is 1/16–1/8" (1.6–3.2 mm) from the end. Welding
always progresses toward the BoreWelder.
To set the rotation start position, push and hold the
ROTATION INITIALIZE
button on
the control box until the torch stops rotating. This will be the rotation starting posi-
tion for the weld. Starting here ensures a complete revolution of the torch before
the step occurs, thereby providing complete buildup at the very end of the hole.
To change the rotation initialize point, reach into the square hole on the side of the
red shroud and turn the knurled adjustable step collar to the desired location.
T
IP
:
If you are welding horizontally, be sure to retract the starting point to
remove backlash from the gear train.
After the step point is reached, feed a foot or so of wire out of the torch,
removing twisted wire from inside the BoreWelder.
Do not adjust the step collar while the machine is welding.