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TROUBLESHOOTING & REPAIR | ||||
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| ACTIVE SCR TEST |
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| WARNING |
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| Service and repair | should be performed by only Lincoln Electric factory | trained personnel. |
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| Unauthorized repairs performed on this equipment may result in danger to the technician |
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| or machine operator and will invalidate your factory warranty. For your safety and to avoid |
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| electrical shock, please observe all safety notes and precautions detailed throughout this |
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| 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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DESCRIPTION
The Active SCR test will determine if the device is able to be gated “ON” and conduct cur- rent from anode to cathode.
MATERIALS NEEDED
3/8” Nut Driver
TIG 275 Wiring Diagrams
An SCR Tester as Outlined in this Procedure
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