Metal Finishing Guide Book

2011-2012 Surface Finishing Guidebook

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4. Check panel gaskets and repair or replace as necessary. 5. Check components such as pilot lights, switches, push buttons, etc., for proper operation and replace as required. EVERY 6 MONTHS 1. Check writing and bus connections for tightness and cleanliness. Repair as required. 2. Clean semiconductors and heat sinks. Dirty and corroded heat sinks can significantly increase the operating temperatures of the semiconductors and reduce the life of the rectifier. 649

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