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5.
The purpose of the drive brake is to halt the
spool of wire at nearly the same moment
that wire feeding stops.
a.
Four Inch Wire Spool - Install the drive
brake hardware on the top of the spool
of wire, as shown in Fig. 5-A.
b.
Eight Inch Wire Spool - Install the
spindle adapter and drive brake
hardware, as shown in Fig. 5-B.
6.
Set the spool tension. Too much tension and
the wire will slide on the drive roller or the wire
won't feed into the mechanism. Tool little tension and the wire may unspool
itself. Readjust the drive brake tension to correct for either problem.
a.
Turn the wire spool with one hand and while adjusting the tension
with the other hand.
b.
Tighten (turn clockwise) the drive tension adjustment knob with your
free hand.
c.
Stop tightening when drag is felt on the wire spool that you are turning.
d.
The wire spool is ready for use.
7.
Free the leading end of the wire from the spool and use wire cutters to
remove the bent portion, leaving a straight 90° cut. Do not let go of the
welding wire while doing this, as the wire may unspool itself.
8.
Loosen the tension adjusting knob holding the drive tension arm in place
and lift the tension arm away from the driver roller.
9.
Insert the leading end of the wire into the inlet guide tube. Then push the
wire across the drive roller and insert six inches into the torch assembly.
a.
Make certain that the welding wire is actually going into the torch
liner and not alongside it. A misaligned wire may be deflected in
another direction and could damage the internal mechanisms.
10. Line the wire in the drive roller groove, then place the drive tension arm
on the drive roller.
11.
Flip the quick release drive tensioner back up into position on the drive
tensioner arm.
12. Tighten (turn clockwise) the drive tension adjusting knob until the tension
roller is applying enough force on the wire to prevent it from slipping out
of the drive assembly.
16
90A Flux Core Welder
For technical questions call 1-800-665-8685
V1.1
B
A
Fig. 5
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