Sears Craftsman 934.20105 Owner's Manual page 16

ASSEMBLY AND INSTALLATION Page 14
d. Remove the drive roller by pulling it straight
out and off the drive motor shaft.
e.
Find the side of the drive roller that is
stamped with the same wire diameter as
that of the wire being installed. Push the
drive roller onto the drive motor shaft. Make
sure the side stamped with the desired wire
diameter is facing out. IMPORTANT! Make
sure the key remains properly installed in its
slot in the drive motor shaft.
f. Replace the drive roller retaining screw and
washer, then tighten securely.
4. Remove the wire spool holder from the deck of
the welder by pulling up lightly on the spindle
while pulling firmly outward on the tab of the wire
spool holder until it clears the hold-down tabs on
the deck of the welder.
8. Place the spool on the spindle in such a manner
that when the wire comes off the spool it will look
like this:
not like this:
o
5. Turn wire spool holder over and insert the 1/4-21
x 2 3/4" hex head bolt through the hole that goes
up through the spindle. Make sure that you
push the hex head of the bolt all the way into the
hex hole in the bottom of the wire spool holder.
6. Reinstall the wire spool holder onto the welder
making sure to push it all the way into the hold-
down tabs.
7. Unwrap the spool of wire then 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!
9. If you are installing a 4-inch spool of wire, install
the drive brake hardware on top of the spool of
wire according to the following illustration. How-
ever, if you are installing an 8-inch spool, install
the spindle adaptor INSTEAD of the drive brake
hardware and move on to step #11.
10. Adjust the drive brake tension. 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.