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OM-1215 Page 14
4-3. Changing Liner
Ref. 802 576
Tools Needed:
Y Turn Off power at welding
power source first.
1 Nozzle
2 Contact Tip
3 Liner
Remove and replace liner.
Reinstall parts as shown.
1
2
3
4-4. Troubleshooting
Trouble Remedy
Gun tube assembly loose. Tighten nut at base of gun tube assembly.
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.
Pressing gun/feeder trigger does not en-
ergize welding power source; welding
wire is not energized; shielding gas does
not flow.
Secure plug from gun/feeder trigger cord into 4-socket receptacle on welding power source (see Sections
2-3).
Wire feeds, shielding gas flows, but Secure control cable leads in welding power source (see Section 2-3).
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 2-4).
Clean or replace drive roll; clean or replace liner (see Sections 4-2 and 4-3).