Miller Electric 3545 - Manual (Page 15)

OM-1216 Page 11
3-4. Installing Wire Spool And Threading Welding Wire
Ref. 801 891-B
Tools Needed:
1 Thumb Screw
2 Spool Cover
Remove thumb screw and spool
cover.
3
Hub Tension Nut
4 Wire Spool
Install spool so wire feeds from top.
Turn hub tension nut just so a slight
drag is felt on the wire spool.
5
Push Roll/Lower Drive Roll
6 Drive Roll Pressure
Adjustment Opening
7 Drive Roll Release Lever
(Red)
8 Wire Inlet Guide
9 Contact Tip
10 Nozzle
4
1
5
6 7 8
10
9
3
Remove nozzle and contact tip. Push
and hold red lever. Thread wire through
inlet guide, past push roll/drive roll, and
out end of gun 2 inches (50 mm).
Release red lever.
Turn On welding
power source power.
Install contact tip and nozzle. Reinstall
spool cover and thumb screw.
Wood
Cut off wire. Press gun trigger to feed wire to check drive roll
pressure. Turn screw enough to prevent slipping.
2
.
Screw rotation clockwise decreases
drive roll pressure and counterclockwise
rotation increases pressure.