RECONDITIONING PROCEDURE PISTON CROWN

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1. Cleaning / inspection including mpi/dye check

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2. Burned / damaged ring grooves

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3. Premachining piston crown and mpi/dye check

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4. Preheating / SAW welding of piston crown

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5. Piston crown after heat treatment

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6. Cnc machining of ring grooves

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7. Double chromium plating / grinding ring grooves

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8. Final inspection / pressure test (evt class approval)