Miller Electric OM-1589 Removing Top Cover of Gun, Adjusting Contact Tip Position, Torque Switch

3-9. Removing Top Cover of Gun

1

1 Top Cover

Push back and lift off as shown.

To reinstall cover, set rear of cover in gun, and push cover back, down, and forward until it clicks into posi- tion.

800 942

3-10. Adjusting Contact Tip Position

3	3
4
2	2
1
	1
	4
Water-Cooled Model	Air-Cooled Model

1Contact Tip

2Nozzle

Adjusting barrel changes contact tip location from 1/16 in (1.6 mm) out beyond end of nozzle to 1/4 in (6.3 mm) inside nozzle.

3Jam Nut

4Barrel

To change contact tip location, loos- en jam nut, and turn barrel. Tighten jam nut.

Ref. 150 434 / Ref. 150 431

3-11. Setting Torque Switch

1 Torque Switch

Use switch to select the force used to push wire. The up position is for high force, or torque. The down po- sition is for low force, or torque.

Use low position for .030 in (0.8 mm) Aluminum wire. Use high posi- tion for all other wire.

If welding wire appears to be kinked, nicked, or damaged, place switch in low torque position.

1

Ref. 800 690-A

OM-1589 Page 16