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NPK GH1 - Repairing Deep Bore Scratches - Welding and Polishing

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MAIN BODY BORE REPAIR
REPAIR OF BODY BORE BY GRINDING AND POLISHING
After polishing, remove all o-rings from the “B” sleeve (longest sleeve). Apply a light
coat of NPK Assembly Lubricant, part no. H010-5010.
Pass the sleeve in and out through the bore to check for any high spots, which
require additional polishing.
9. REPAIRED O-RING – CONTACT SURFACE
12. GROUND AREA – NO O-RINGS HERE

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