
OM-154 501 Page 16
5-3. Fuses F1 And F2
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.
2
1
Ref. ST-800 928-B
5-4. Changing Drive Rolls And Wire Inlet Guide
1 Securing Screw
2 Inlet Wire Guide
Loosen screw. Slide tip as close to
drive rolls as possible without
touching. 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.
1
3
2
4
5
5/64 in
7/16 in
Tools Needed:
ST-150 227-C
5-5. Aligning Drive Rolls And Wire Guide
View is from top of drive rolls look-
ing down with pressure assembly
open.
1 Drive Roll Securing Nut
2 Drive Roll
3 Wire Guide
4 Welding Wire
5 Drive Gear
Insert screwdriver, and turn screw
in or out until drive roll groove lines
up with wire guide.
Correct Incorrect
5
4
3
2
6
Tools Needed:
Ref. ST-801 412-A
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