TM 10-3930-669-34 15-3. STACK VALVE REPLACEMENT/REPAIR (CONT). (3) Remove  elbow  (7)  and  preformed  packing  (39) from    stack    valve    (27).        Discard    preformed packing. (4) Remove  elbow  (5)  and  preformed  packing  (40). Discard preformed packing. (5) Remove   fitting   (17),   preformed   packing   (41), poppet  body  (42),  poppet  (43),  and  preformed packing (44).  Discard preformed packings. (6) Remove fitting (19)  and  preformed  packing  (45) from    stack    valve    (27).        Discard    preformed packing. (7) Remove fitting (23) and preformed packing (46). Discard preformed packing. (8) Remove fitting (22) and preformed packing (47). Discard preformed packing. (9) Remove elbow (24) and preformed packing (48). Discard preformed packing. 15-16

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