4-11. Installing And Threading Welding Wire
Pressure
Adjust
Install drive rolls.
NONCONDUCTIVE
.
Be sure that outlet cable has proper size
liner for the welding wire size. When
installing
gun,
position
extending from outlet wire guide as
close as possible 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.
OM-252045 Page 16
Install wire spool. Ad-
just tension nut so
wire is taut when wire
feed stops.
Drive Rolls
Gun Cable
End Of Liner
NONCONDUCTIVE
SURFACE
SURFACE
No Wire Slip
Wire Slips
.
For soft wire or small diameter stainless
steel wire, reduce drive roll pressure on
liner
the rear roll to half that of the front rolls.
3/16, 5/64 in.
Pressure
Indicator
Scale
Pressure
Adjust
152648-C / 802966 / Ref. 137391-A / 802954 / Ref. S-0627-A / 805416-B
Tools Needed:
15/16, 3/8 in.
Install wire guide.
.
To adjust drive roll pressure, hold nozzle
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 con-
tact tip is completely blocked, wire should
slip at the feeder (see pressure adjust-
ment above).Cut wire off. Close cover.