Threading Welding Wire - Miller Millermatic 140 Auto-Set Owner's Manual

4-12. Threading Welding Wire

Tools Needed:
1
Open pressure assembly.
4
Be sure that wire is positioned in proper drive
roll groove and wire is laying in the groove.
Close and tighten pressure
assembly, and let go of wire.
7
Press gun trigger until wire comes
out of gun. (Keep gun cable as
straight as possible.)
OM-225 311 Page 20
.
A complete Parts List is available on-line at www.MillerWelds.com
1
2 3
5
2
Pull and hold wire; cut off end.
.
Use pressure indicator scale to set a desired
drive roll pressure. Begin with a setting of 3.
If necessary, make additional adjustments
Tighten after trying this initial setting.
1
2
3
4
8
Be sure that tip matches wire diameter.
Reinstall contact tip and nozzle.
4
.
Hold wire tightly to keep it
from unraveling.
6 in.
(150 mm)
5
Pressure
Indicator
Scale
Remove gun nozzle and contact tip.
Feed wire to check drive roll pressure.
Tighten knob enough to prevent slipping.
1 Wire Spool
2 Welding Wire
3 Inlet Wire Guide
4 Pressure Adjustment Knob
5 Drive Roll
6 Gun Conduit Cable
Lay gun cable out straight.
6
3
4 in.
(102 mm)
Push wire thru guides into gun;
continue to hold wire.
INPUT
POWER
Turn power on.
9
Tighten
1
2
3
4
WOOD
Cut off wire. Close door.
Ref. 802 982-A / Ref. 205 837 / Ref. 243 861-A
6