TM  10-3930-643-34 GENERAL  SUPPORT  TRANSMISSION  MAINTENANCE. 15-8. Transmission  Scheduling  Valve.  (Sheet  3  of  7) DISASSEMBLY 5. 6. 7. 8. 9. 10. Using a 1"-  socket  and  socket  wrench handle, remove check valve (22), preformed  packing  (23),  retainer  (24) and  preformed  packing  (25). Discard preformed packings (23 and 25). Remove check valve (26), retainer (27), preformed packing (28) and ring (29). Discard  preformed  packing (28). Remove check valve (30), retainer (31), preformed (33). Discard (32). Using a 1-1/2” remove  retainer piston (36) and (37) . Discard (37). packing (32) and ring preformed packing open end wrench, (34), spring (35), preformed packing preformed packing NOTE Sleeve should not be removed unless it is known to be damaged or not operating properly. Using a wire hook, remove sleeve (38). Wire must be bent into U shape and ends bent outward to form hooks. Hooks can be engaged in cross drilled oil holes in sleeve (38). Remove spring (39), spool (40) and preformed packings (41 thru 43). Discard preformed packings (41 thru 43). Go to sheet 4 15-97