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TROUBLESHOOTING & REPAIR | |||||
TROUBLESHOOTING GUIDE |
| Observe Safety Guidelines | |||
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| detailed in the beginning of this manual. | |||
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PROBLEMS |
| POSSIBLE AREAS OF |
| RECOMMENDED |
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(SYMPTOMS) |
| MISADJUSTMENT(S) |
| COURSE OF ACTION |
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| STICK WELDING PROBLEMS |
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Stick electrode "Blasts Off" when arc 1. Weld current may be set too high | 1. | Perform the SCR Bridge Test. | |||
is struck. |
| for electrode size. Reduce cur- |
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| rent control setting, or use a larg- | 2. | The control board may be faulty. | |
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| er diameter electrode. |
| Replace. |
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The stick electrode "sticks" in the | 1. The weld current may be set too |
puddle. | low. Increase the current control |
| setting or use a smaller diameter |
| electrode. |
Variable or sluggish welding arc | 1. | Check work and electrode cables 1. | Check the polarity switch for |
when welding in the Stick mode. |
| for loose or poor connections. | excessive wear or faulty connec- |
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| tions. |
| 2. The weld cables may be too small |
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| or too long to permit the desired 2. | Check interior connection of the |
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| current to flow. | heavy current carrying leads. |
| 3. | The weld current may be set too |
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| low. |
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CAUTION
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
