Installing And Threading Welding Wire - Miller SuitCase 12RC CE Owner's Manual

5-7. Installing And Threading Welding Wire

1
WOOD
2
6 in.
(150 mm)
Pull and hold wire; cut off end.
Tighten
Clockwise
Installing Wire And Adjusting Hub
Tension:
1 Retaining Nut
2 Hub Tension Adjustment Knob
.
Remove retaining nut, and install spool
Hold wire tightly
so hub pin fits spool hole. Reinstall re-
to keep it from
taining nut.
unraveling.
Adjust tension knob so only a slight
force is needed to turn spool.
.
Do not over tighten tension knob. It
is not necessary to use any tools to
tighten the knob.
Threading Welding Wire:
3 Pressure Adjustment Knob
Lay gun cable out straight.
Open pressure assembly. Hold wire
tightly and cut off end. Guide wire
through alignment pins, through drive
rolls, and into gun.
3
Close pressure assembly and tighten
pressure adjustment knob enough to
feed wire. Press jog switch until wire
comes out of gun.
To set proper drive roll pressure, re-
lease the pressure on the drive rolls by
loosening the pressure adjustment
knob. Position gun at about a 45 degree
angle, with nozzle about two inches
from a wooden surface. While feeding
the wire against the wooden surface,
increase the pressure to one half turn
past the point where the wire stops slip-
ping. If the wire slips at maximum
hand-tight pressure, there may be other
problems. Check the gun liner, spool
tension, contact tip and drive roll wear,
as all these can cause wire feeding
problems.
Cut off wire, and close door.
263 838-A
OM-263984 Page 17