Hobart Welding Products OM-227 978B manual Threading Welding Wire

5-11. Threading Welding Wire

4

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

Tools Needed:

1 2 3 5

.Hold wire tightly to keep it from unraveling.

4 in

(120 mm)

6 in (150 mm)

Open pressure assembly. Make sure feed roll is set to correct groove to match wire size (see Section 7-4).

Tighten

1

2

3

4

Be sure that wire is positioned

in proper feed roll groove. Close and tighten pressure assembly, and let go of wire.

Pull and hold wire; cut off end.	Push wire thru guides into gun;
	continue to hold wire.

.Use pressure indicator scale to set a desired drive roll pressure.

Pressure

Indicator

Scale

Remove gun nozzle	Turn power on. Be sure that Voltage range
and contact tip.	switch is set to range 1, 2, 3, 4, 5, 6, or 7 to
	feed wire. Rotate knob until it “clicks” into
	detent. Wire will not feed if range switch is
	set between ranges.

Tighten

Press gun trigger until wire comes out of gun.

Be sure that tip matches wire diameter. Reinstall contact tip and nozzle.

	1
	2
	3
WOOD	4

Feed wire to check drive roll pressure. Tighten knob enough to prevent slipping.

Cut off wire. Close door.

Ref. 804 688-A

OM-227 978 Page 18