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7-8. Troubleshooting Table
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No weld output; wire does not feed; fan | Secure power cord plug in receptacle (see Section | ||||
does not run. |
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Replace building line fuse or reset circuit breaker if open. | |||||
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| Place Power switch in On position (see Section | |||
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| Reset welding power source supplementary protector (see Section | |||
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No weld output; wire does not feed; fan | Thermostat TP1 open (overheating). Allow fan to run with gun trigger switch off; thermostat closes when | ||||
motor continues to run. | unit has cooled (see Section | ||||
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| Check Voltage range switch position. Rotate knob until it “clicks” into detent at desired range setting. | |||
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| Secure gun trigger leads (see Section | |||
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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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| Check for proper polarity connections (see Section | |||
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| Check thumbscrew securing gun end to feed head adapter and tighten if necessary. | |||
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Low weld output. | Connect unit to proper input voltage or check for low line voltage. | ||||
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| Place voltage switch in desired position (see Section | |||
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Electrode wire feeding stops during | Straighten gun cable and/or replace damaged parts. | ||||
welding. |
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Adjust drive roll pressure (see Section | |||||
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| Change to proper drive roll groove (see Section | |||
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| Readjust hub tension (see Section | |||
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| Be sure that wire is positioned in proper drive roll groove and wire is laying in the groove. | |||
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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 Section | |||
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| Replace drive roll or pressure bearing if worn or slipping (see Section | |||
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| Secure gun trigger leads or repair leads (see Section | |||
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| Check and clear any restrictions at drive assembly and liner (see Section | |||
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| Release gun trigger and allow gun and motor protection circuitry to reset (see Section | |||
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| Gun is not secured to feed head. Check thumbscrew securing gun end to feed head adapter and tighten | |||
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| Have nearest Factory Authorized Service Agent check drive motor. | |||
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