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

4-11. Threading Welding Wire

Tools Needed:
Open pressure assembly.
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.
Press gun trigger until wire comes
out of gun.
OM-225 311 Page 18
.
A complete Parts List is available on-line at www.MillerWelds.com
1
2 3
5
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
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)
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
4 in
(102 mm)
Push wire thru guides into gun;
continue to hold wire.
INPUT
POWER
Turn power on.
Tighten
1
2
3
4
WOOD
Cut off wire. Close door.
Ref. 802 982-A / Ref. 205 837