Installing And Threading Welding Wire - Miller Electric Swingarc Owner's Manual

3-12. Installing And Threading Welding Wire

Install drive rolls.
NONCONDUCTIVE
No Wire Slip
.
Be sure that outlet cable has proper size
liner for the welding wire size. When
installing gun, position liner extending
from outlet wire guide as close as pos-
sible to drive rolls without touching.
Install gun. Lay gun cable out straight. Cut off
end of wire. Push wire through guides up to
drive rolls; continue to hold wire. Press Jog
button to feed wire out gun.
Install wire spool. Ad-
just tension nut so
wire is taut when wire
feed stops.
Pressure
Indicator
Pressure
Adjust
NONCONDUCTIVE
SURFACE
SURFACE
Wire Slips
.
For soft wire or small diameter stainless
steel wire, use 2 drive rolls and set drive
roll pressure from 0 to a maximum of 4
on the pressure indicator scale (so that
only the inner spring is compressed).
This setting will generally give the best
performance for these types of wires.
To adjust drive roll pressure, hold nozzle
ST-152 648-A / Ref. ST-157 432 / Ref. ST-137 391-A / ST-142 597-A / Ref. S-0627-A / Ref. ST-150 922
3/16, 5/64 in
Scale
Tools Needed:
15/16, 3/8 in
Install wire guide.
about 2 in (51 mm) from nonconductive
surface and press gun trigger to feed wire
against surface. Tighten knob so wire does
not slip. Do not overtighten. If contact tip is
completely blocked, wire should slip at the
feeder (see pressure adjustment above).
Cut wire off. Close cover.
Repeat for other side.
OM-1583 Page 15