Miller Electric OM-1589 - Manual (Page 22)

OM-1589 Page 16
3-9. Removing Top Cover of Gun
800 942
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.
1
3-10. Adjusting Contact Tip Position
Ref. 150 434 / Ref. 150 431
1 Contact Tip
2 Nozzle
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.
3 Jam Nut
4 Barrel
To change contact tip location, loos-
en jam nut, and turn barrel. Tighten
jam nut.
1
3
2
1
2
4
3
4
Air-Cooled Model Water-Cooled Model
3-11. Setting Torque Switch
Ref. 800 690-A
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