TN  10-3930-643-34 GENERAL  SUPPORT  TRANSMISSION  MAINTENANCE. 15-4. First Gear Assembly. (Sheet 5 of 7) CLEANING/INSPECTION 15. Inspect teeth on gear (2), housings (9 and 15) and plates (4 thru 6) for wear, chips, cracks or missing teeth. Replace, if necessary. 16. Inspect all other parts. Refer to paragraph 2-9. ASSEMBLY 17. Install  new  retaining  ring (8) in housing (15). Be sure that open space between retaining ring (8) ends does not aline with oil holes. 18. Install housing (9) in housing (15). 19. Install two races (11) and thrust bearing (10). 20. Install  new  preformed  packing (13) and new seal ring (14) on piston (12). 21. Install piston (12) in housing (15). 22. Place housing (15) in an arbor press. Go to sheet 6 15-53

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