5-9. Welding Troubleshooting Table
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| Welding Trouble |
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No weld output; wire does not feed. | Secure power cord plug in receptacle (see Section | |||
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| Place Power switch in the ON position. | ||
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| Place MIG/Spool Gun switch in the proper position. | ||
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| Check and replace Power switch if necessary. | ||
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| Check supplementary protectors CB1 and/or CB2, and reset if necessary (see Section | ||
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| Replace building line fuse or reset circuit breaker if open (see Section | ||
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| Secure gun trigger plug in receptacle or repair leads, or replace trigger switch (see Sections | ||
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| Thermostat open (overheating). Allow fan to run; the thermostat will close when the unit has cooled (see | ||
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No weld output; wire feeds. | Connect work clamp to get good metal to metal contact. | |||
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| Replace contact tip (see Section | ||
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Low weld output. | Connect unit to proper input voltage or check for low line voltage (see Section | |||
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Low, high, or erratic wire speed. | Readjust front panel settings (see Section | |||
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| Change to correct size drive roll (see Section | ||
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| Readjust drive roll pressure (see Section | ||
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| Replace inlet guide, contact tip, and/or liner if necessary (see Sections | ||
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5-10. Wire Drive/Gun Troubleshooting Table
Wire Drive/Gun Trouble | Remedy |
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Electrode wire feeding stops during | Straighten gun cable and/or replace damaged parts (see Section |
welding or wire feeding intermittently. |
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| Adjust drive roll pressure (see Section |
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| Readjust hub tension (see Section |
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| Check supplementary protectors CB1 and/or CB2, and reset if necessary (see Section |
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| Replace contact tip if blocked (see Section |
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| Clean or replace wire inlet guide or liner if dirty or plugged (see Sections |
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| Replace drive roll if worn or slipping (see Section |
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| Secure gun trigger plug in receptacle or repair leads, or replace trigger switch (see Section |
| see Parts List). |
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| Check and clear any restrictions at drive assembly and liner (see Section |
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| Have nearest Factory Authorized Service Agent check drive motor. |
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