Owner`s manual

OM-1036 Page 4
Table 5-1. Troubleshooting
Trouble Remedy Section
Wire does not feed. Check contact tip. Check for kinks in gun cable. 5-2
Check gun trigger plug connection at welding power source/wire
feeder.
3-1
Check, and if necessary, replace gun trigger switch. 5-3
Wire is not energized. Check contact tip. 5-2
Check gun trigger plug connection at welding power source/wire
feeder.
3-1
Check, and if necessary, replace gun trigger switch. 5-3
Wire feeds unevenly. Check contact tip. Check for kinks in gun cable. Blow out liner
and gun casing.
5-2
Weld porosity. Remove weld spatter buildup in nozzle. – –
Make sure inner support tube is tight in cable connector. – –
5-2. Changing Contact Tip, Liner, And Head Tube
A. Changing Contact Tip
Ref. ST-800 749-A
Turn off welding power source/wire
feeder. Cut off wire at nozzle.
1 Nozzle
2 Contact Tip
3 Contact Tip Adapter
1
Tools Needed:
7/16 in
7/16 in
2 3
Figure 5-2. Changing Contact Tip