Threading Welding Wire And Adjusting Pressure Roll Tension - Miller Electric MPi 220P Owner's Manual

4-12. Threading Welding Wire And Adjusting Pressure Roll Tension

1
Open pressure assembly.
Close and tighten pressure
assembly, and let go of wire.
Press gun trigger until wire
comes out of gun. Reinstall
contact tip and nozzle
3
2
5
6
.
Hold wire tightly to keep it
from unraveling.
150 mm
(6 in.)
Pull and hold wire; cut off end.
.
Use pressure indicator
Tighten
scale to set a desired
drive roll pressure.
Pressure
1
Indicator
2
3 Scale
4
Remove gun nozzle and contact tip.
WOOD
Feed wire to check drive roll pressure.
Tighten knob enough to prevent slipping.
4
7
Push wire thru guides into gun;
continue to hold wire.
Tighten
1
2
3
4
1 Wire Spool
2 Welding Wire
3 Inlet Wire Guide
4 Pressure Adjustment Knob
5 Drive Roll
6 Outlet Wire Guide
7 Gun Conduit Cable
Lay gun cable out straight.
Tools Needed:
Cut off wire. Close
and latch door.
Ref. 956142881_3-A
OM-253 918 Page 21