OM-243 762 Page 22
5-6. Replacing Diffuser
Ref. 244 693-B
Turn Off welding power source.
1 Nozzle
2 Contact Tip
To remove, see Section 5-2.
3 Phillips Head Screw
4 Liner Housing
5 Liner
Loosen screw and remove liner
housing and liner.
6 Diffuser
Remove diffuser and replace.
Tools Needed:
1
2
6
4
3
5
5-7. Troubleshooting
Trouble Remedy
No weld output; gun/feeder does not
work.
Place Power switch on welding power source in the On position (see welding power source Owner’s
Manual).
Erratic weld output. Tighten and clean all connections.
Wire feeds, shielding gas flows, but
welding wire is not energized.
See Troubleshooting section in welding power source Owner’s Manual.
Wire feeds erratically. Check and correct drive roll pressure (see Section 3-6).
Clean drive roll or replace drive roll (see Section 5-4).
Decrease spool brake pressure (see Section 3-6).