4. Locate the side of the drive roller that is
stamped with the same wire diameter as
that of the wire being installed (see
Figure 6). Push the drive roller onto the
motor shaft. Make sure the side stamped
with the desired wire diameter is facing
the Drive Assembly.
Figure 6. Drive Roller
5. Slide the roller onto the shaft so that the
groove in the roller lines up with the inlet
tube and the welding gun liner.
6. Replace the drive roller retaining knob
and hand tighten.
INSTALL THE WELDING WIRE
WARNING
ELECTRIC SHOCK CAN KILL!
Always turn the power switch to the OFF
position and unplug the welder's power cord
from the ac power source before installing
welding wire.
Be very careful when removing the welding
nozzle. The contact tip on this welder is
electrically hot as long as POWER is turned
ON. Make certain POWER is turned OFF.
INSTALLATION FOR ALL WIRE TYPES
EXCEPT ALUMINUM
1. Remove the nozzle and contact tip from
the end of the gun assembly.
2. Remove the plastic cover from the drive
assembly by pulling it straight out.
3. Flip down the quick release drive tension-
er and swing the drive tensioner arm out
away from the drive roller.
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4. Make sure the proper groove on the drive
roller is in place for the wire being installed.
If the proper groove is not in place, change
the drive roller as described above.
5. Inspect the spool of wire and find the
leading end of the wire (it goes through a
hole in the outer edge of the spool and is
bent over the spool edge to prevent the
wire from unspooling), BUT DO NOT
UNHOOK IT YET.
6. Place the spool on the spindle in such a
manner that when the wire comes off the
spool, it will look like the top illustration in
Figure 7. The welding wire should always
come off the top of the spool into the
drive mechanism.
Figure 7. Wire Spool Installation
7. 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 8A. If you are installing an eight-
inch spool (or larger), install the spindle
adapter and drive brake hardware as
shown in Figure 8B. 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.