OM-194 034 Page 14
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1 Nozzle
2 Contact Tip
Cut off welding wire at contact tip.
Remove nozzle.
Removecontact tip andinstall new
contact tip. Reinstall nozzle.
1
2
Tools Needed:
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No weld output; wire does not feed; fan
does not run
Secure power cord plug in receptacle.
does not run.
Replace building line fuse or reset circuit breaker if open.
Place Power switch in On position (see Section 4-1).
Check circuit breaker CB (CSA model), and reset if necessary).
No weld output; wire does not feed; fan
motor continues to run.
Thermostat S3open (overheating). Allow fan to run; thermostat closes when unit has cooled (see
Section 2-2).
Secure gun trigger leads (see Section 3-1).
No weld output; wire feeds.
Connect work clamp to get good metal to metal contact.
Replace contact tip (see Section 5-3).
Check for proper polarity connections (see Section 3-2).
Low weld output.
Connect unit to proper input voltage or check for low line voltage.
Place voltage switch in desired position (see Section 4-1).
Electrode wire feeding stops during
welding
Straighten gun cable and/or replace damaged parts.
welding.
Adjust drive roll pressure (see Section 3-8).
Change to proper drive roll groove (see Section 5-2).
Readjust hub tension (see Section 3-7).
Replace contact tip if blocked (see Section 5-3).
Clean or replace wire inlet guide or liner if dirty or plugged (see Section 5-2).
Replace drive roll or pressure bearing if worn or slipping (see Section 5-2).
Secure gun trigger leads or repair leads (see Section 3-1).
Check circuit breaker CB or CB2 (depending on Model), and reset if necessary.
Check and clear any restrictions at drive assembly and liner (see Section 3-8).
Have nearest Factory Authorized Service Agent check drive motor.
