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| TROUBLESHOOTING & REPAIR | ||||||
| Observe Safety Guidelines detailed in the beginning of this manual. |
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| PROBLEMS |
| POSSIBLE AREAS OF |
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| (SYMPTOMS) |
| MISADJUSTMENT(S) |
| COURSE OF ACTION |
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| The engine “cranks” AND starts, | WELDING PROBLEMS | 1. The oil pressure switch may |
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| 1. Make sure the correct grade |
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| but runs only about |
| and amount of oil is in the | be faulty. Perform the | Oil |
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| seconds and shuts down. |
| engine crankcase. See the | Pressure Switch Test. |
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| Maintenance Section of this | 2. The Temperature Switch may |
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| manual. | be fault. Perform the |
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| 2. Make sure the engine is not | Temperature Switch Test. |
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| overheating. | 3. The alternator may be faulty. |
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| 3. Make sure the engine | Perform the Alternator Test. |
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| alternator is operating properly. | 4. The Idler/Engine Protection |
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| Board may be faulty |
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| (PERKINS) The ECU |
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| (KUBO11:29 AMA) or Throttle |
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| Body Controller (GM 3.0 Liter) |
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| may be faulty. Contact the |
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| Lincoln Electric Service Dept. |
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| The welding arc is loud and | 1. The current setting may be too | 1. Check the engine speed. |
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| spatters excessively. |
| high for the electrode and | High idle speed should be |
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| process. | 1800 RPM. If Necessary, |
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| 2. The polarity may be wrong for | perform the Engine Throttle |
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| Adjustment Test. (PERKINS |
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| the electrode and process. | ONLY 10929) |
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| 2. Check the main DC generator |
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| brushes for good commutation |
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| and alignment. Contact the |
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| The welding arc frequently | 1. The fine current control field | 1. Check the engine speed. High |
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| “pops out”. |
| rheostat may be set too low for | idle speed should be 1800 |
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| the process and electrode. | RPM. If Necessary, perform the |
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| 2. Check the welding cables for | Engine Throttle Adjustment |
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| Test. (PERKINS ONLY 10929) |
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| loose or faulty connections. | 2. The Current Range Selector |
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| Switch may be faulty. Check |
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| for proper operation and |
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| contact. |
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| 3. Check the DC generator |
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| brushes for good commutation |
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| and alignment. Contact the |
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| Lincoln Electric Service Dept. |
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| CAUTION |
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| If for any reason you do not understand the test procedures or are unable to | perform the tests/repairs safely, | |||||
| contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. | ||||||
| Call |
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