Set The Wire Drive Tension; Installing Aluminum Wire - Craftsman 196.205040 Manual Del Usuario

power source. Turn the welder ON. Set
the VOLTAGE switch and dial to the volt-
age (heat) settings 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
job. The VOLTAGE selectors control the
weld heat. There are six voltage (heat)
selections available on this welder.
Placing the voltage switch in MIN posi-
tion, and the voltage dial in position A
provides the lowest voltage (heat).
Placing the voltage switch in MAX posi-
tion, and the voltage dial in position C
provides the highest voltage (heat).
16. Set the WIRE SPEED control to the
middle of the wire speed range.
17. Straighten the gun cable and pull the
trigger on the welding gun to feed the
wire through the gun assembly.
18. When at least an inch of wire sticks out
past the end of the gun, release the
trigger.
19. 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.
20. 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.
21. Install the nozzle on the gun assembly.
For best results, coat the inside of the
nozzle with anti-stick spray or gel.
22. Cut off the excess wire that extends past
the end of the nozzle.

SET THE WIRE DRIVE TENSION

WARNING
Arc flash can injure eyes! To reduce the
risk of arc flash, make certain that the wire
coming out of the end of the gun does not
come in contact with work piece, ground
clamp or any grounded material during the
drive tension setting process or arcing will
occur.
1. Pull the trigger on the gun.
2. Turn the drive tension adjustment knob
clockwise, increasing the drive tension
until the wire seems to feed smoothly
without slipping.
When set correctly, there should be no slip-
page between the wire and the drive roller
under normal conditions. If an obstruction
occurs along the wire feed path, the wire
should then slip on the drive roller.
After the tension is properly adjusted, the
quick release drive tensioner may unlocked
and relocked and no readjustment of the
drive tension adjustment knob will be neces-
sary (unless the diameter or type of wire is
changed).

INSTALLING ALUMINUM WIRE

Install aluminum wire the same as steel wire,
but with the following exceptions:
1. Install a teflon liner in the welding gun.
2. Adjust the drive tension VERY carefully.
Aluminum wire is very sensitive to slight
changes in drive tension.
Note: For welding aluminum with this unit,
5356 alloy wire is recommended because of
its superior feedability. A teflon liner is needed.
When welding with softer aluminum alloys,
you may experience feed problems. For best
results with aluminum it may be necessary to
use a spool gun.
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