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TROUBLESHOOTING AND REPAIR | ||
| POTENTIOMETER TEST |
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| WARNING |
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| Service and repair should be performed by only Lincoln Electric factory trained person- |
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| nel. Unauthorized repairs performed on this equipment may result in danger to the tech- |
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| nician or machine operator and will invalidate your factory warranty. For your safety and |
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| to avoid electrical shock, please observe all safety notes and precautions detailed |
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| throughout this manual. |
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| If for any reason you do not understand the test procedures or are unable to perform the |
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| test / repairs safely, contact the Lincoln Electric Service Department for electrical trou- |
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| bleshooting assistance before you proceed. Call |
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| NOTE: The procedures and tests described in this manual are written with the under- |
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| standing that the repair technician fully understands the process of locating |
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| and accessing (within the welding machine) the specific board or device |
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| involved in each procedure or test. |
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| TEST DESCRIPTION |
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| This test will determine if the Speed and Voltage Controls are functioning correctly. |
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| MATERIALS NEEDED |
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| Volt/Ohmmeter (Anolog meter preferred} |
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| Misc. Hand Tools |
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