Figure 8A. Small Spool Installation
Figure 8B. Large Spool Installation
8. Once the drive brake hardware is installed,
set the spool tension.
a) With one hand, turn the wire spool and
continue turning it while adjusting the
tension on the spool.
b) With your free hand, tighten (turn clock-
wise) the drive tension adjustment knob.
c) Stop tightening when drag is felt on the
wire spool that you are turning, then stop
hand-turning the wire spool.
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.
9. 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.
10. Using a wire cutter, cut the bent end off
the leading end of the wire so that only a
straight leading end remains.
11. Loosen the tension adjustment screw
holding the drive tension arm in place
and lift the tension arm up off the drive
roller.
12. 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
going into the gun liner. Be very sure it has
not somehow been accidentally 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.
13. Line the wire up in the inside groove of
the drive roller, then swing the drive ten-
sion arm onto the drive roller.
14. Flip the quick release drive tensioner
back up into position on the drive ten-
sioner arm.
15. 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. Let go of the wire.
17. Connect the welder power cord to the ac
power source.
18. Set the POWER switch on the front of
the welder to the ON position.
19. Set the WIRE SPEED control to the
middle of the wire speed range.
20. Straighten the gun cable and pull the
trigger on the welding gun to feed the
wire through the gun assembly.
21. When at least an inch of wire sticks out
past the end of the gun, release the
trigger.
22. Select a contact tip stamped with the
same diameter as the wire being used.
Note: Due to inherent variances in flux-cored
welding wire, it may be necessary to use a
contact tip one size larger than your flux core
wire if wire jams occur.
23. Slide the contact tip over the wire
(protruding from the end of the gun).
Thread the contact tip into the end of the
gun and hand-tighten securely.
24. Install the nozzle on the gun assembly.
For best results, coat the inside of the
nozzle with anti-stick spray or gel.
25. Cut off the excess wire that extends past
the end of the nozzle.
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