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Figure 6. Wire Installation
.
If you are installing a four-inch spool of
wire, install the drive brake hardware on
the top of the spool of wire according to
figure 7A. If you are installing an eight-
inch spool, install the spindle adapter and
drive brake hardware as shown in Figure
7B. The purpose of the drive brake is to
cause the spool of wire to stop turning at
nearly the same moment that wire
feeding stops.
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Figure 7A. Drive
Brake Hardware
Installation
Figure 7B. Spindle
Adapter and Drive
Brake Installation
6. Once the drive brake hardware is installed,
set the spool tension. With one hand, turn
the wire spool and continue turning it while
adjusting the tension on the spool. With
your free hand, tighten (tum clockwise) the
knob that holds the spool in place. Stop
tightening when drag is felt on the wire
spool that you are turning, then stop hand-
turning the wire spool.
14
Note: If TOO MUCH tension is applied to the
wire spool, the wire will slip on the drive
roller or will not be able to feed at all. If TOO
LITTLE tension is applied, the spool of wire
will want to unspool itself. Readjust the drive
brake tension as necessary to correct for
either problem.
7. After checking to make sure that your
welder is disconnected from the ac power
source, free the leading end of the wire
from the spool, but do not let go of it until
told to do so, or the wire will unspool
itself.
8. Use a wire cutter, cut the bent end off the
leading end of the wire so that only a
straight leading end remains.
9. Loosen the tension adjusting screw
holding the drive tension arm in place
and lift the tension arm up off the drive
roller.
10. Insert the leading end of the wire into the
inlet guide tube. Then push it across the
drive roller and into the gun assembly
about six inches.
CAUTION
Make certain that the welding wire is actually
is going into the gun liner. Be very sure it has
not somehow been accidentally been routed
alongside the liner or even in some other
direction. If this should happen, the wire
could feed inside the cable casing or take a
right angle and follow the wires and gas
hose inside the welder. It could also feed
back on itself jamming up the mechanism.
11. Line the wire up in the inside groove of
the drive roller, then allow the drive ten-
sion arm to drop onto the drive roller.
12. Tighten (turn clockwise) the drive tension
adjusting screw until the tension roller is
applying enough force on the wire to
prevent it from slipping out of the drive
assembly.
13. Let go of the wire.
14. Connect the welder power cord to the ac
power source. Turn the welder ON by
setting the VOLTAGE switch to the volt-
age (heat) setting recommended for the
gauge metal that is to be welded. Refer
to the label mounted on the cover, inside
the drive compartment, for recommended
voltage (heat) settings for your welding