OM-1581 Page 34
5-8. Removing Contact Tip Adapter In Water-Cooled Models
WATER IN GUN PARTS can cause ELECTRIC SHOCK and can lower weld quality.
• Turn Off welding power source and water supply before working on gun. Stop engine on welding generators.
• Always point gun downward when removing water-cooled barrel to keep water out of gun parts.
• Wipe gun dry before putting it back together.
WARNING
Turn Off weld control and welding
power source.
1 Nozzle
2 Nozzle Adapter
Remove as shown.
3 Contact Tip Adapter
Use supplied 3/32 in allen wrench
to remove adapter.
Coat new adapter with threadlock-
ing compound (such as Loctite No.
242), and install.
150 431
1
2
3
5-9. Replacing Hub Assembly
Turn Off wire feeder and welding
power source. Remove gun top
cover and open pressure roll
assembly as shown in Section 5-4.
Retract wire onto spool and remove
spool. Take hub apart as shown.
1 Metal Brake Washer
2 Flat Washer
3 Brake Washer
4 Hub
5 Keyed Washer
6 Spring
7 Cap Screw
8 Retaining Ring
Replace broken or worn parts and
slide parts onto shaft as shown.
Adjust hub tension (see Section
5-10). Thread welding wire (see
Section 3-15). Close and latch door.
Close gun pressure roll assembly
and reinstall gun cover.
151 778-B / Ref. 143 223-A
Tools Needed:
1
2
3
4
5
6
2
7
8
7/16 in