TM 10-3930-664-24 7. Remove  eight  bolts  (13)  from  steering  case  (17). Remove  assembled  ring  gear  (15)  from  wheel  hub (16). 8. Using  puller,  remove  wheel  hub  (16)  from  steering case (17). 9. Remove   seal   (18)   and   roller   bearing   (19)   from steering case (17). 10. Using  pliers,  remove  snap  ring  (21)  from  ring  gear (15).  Remove ring gear support (22). 11. Remove  roller  bearing  (20)  and  O-ring  (23)  from wheel hub (16).  Discard O-ring. 12. Remove eight wheel studs (23) from wheel hub (16) only if replacement is required. B.  CLEANING Clean  planetary  drive  gear  components  in  accordance with paragraph 1-24. C.  INSPECTION Inspect  planetary  drive  gear  components  in  accordance with paragraph 1-24. D.  INSTALLATION 1. Install eight wheel studs (23) onto wheel hub (16). 2. Press   roller   bearing   (20)   onto   wheel   hub   (16). Install new O-ring (23). 3. Install  seal  (18)  and  roller  bearing  (19)  into  wheel hub (16). 4. Install wheel hub (16) onto steering case (17).  Tap into place using a soft head hammer. 5. Install  ring  gear  support  (22)  into  ring  gear   (15). Secure using snap ring (21). 6. Install assembled ring gear (15) onto steering case (17),  ensuring  proper  bolt  hole alignment.  Apply loctite   to   threads   of   eight   bolts   (13)   and   install. Torque bolts to 5 to 15 ft-lbs.  (7 to 20 N•m). 4-94