Fuses F1 And F2; Changing Drive Roll And Wire Inlet Guide; Replacing Gun Contact Tip - Miller Gold Seal GS-250 Owner's Manual

4-3. Fuses F1 And F2

4-4. Changing Drive Roll And Wire Inlet Guide

Tools Needed:
5/64 in
7/16 in

4-5. Replacing Gun Contact Tip

Tools Needed:
3
2
1
4
2
2
1
Tools Needed:
3/8 in
5
1
Y Turn Off unit, and disconnect
input power.
1 Fuse F1 (See Parts List For
Rating)
F1 protects the 115 volts ac winding
of transformer T1. If F1 opens, all
weld output stops and pilot light PL1
goes out.
2 Fuse F2 (See Parts List For
Rating)
F2 protects the 24 volts ac winding
of transformer T1. If F2 opens, all
weld output stops.
Ref. 800 928-B
1 Securing Screw
2 Inlet Wire Guide
Loosen screw. Slide tip as close to
drive rolls as possible without touch-
ing. Tighten screw.
3 Anti-Wear Guide
Install guide as shown.
4 Drive Roll
Install correct drive roll for wire size
and type.
5 Drive Roll Securing Nut
Turn nut one click to secure drive
roll.
150 227-D
Y Turn
Off unit before
replacing contact tip.
1 Nozzle
2 Contact Tip
Cut off welding wire at contact tip.
Remove nozzle.
Remove contact tip and install new
contact tip. Reinstall nozzle.
Ref. 800 797-C
OM-1311 Page 21