TM 10-3930-664-24 A. DISASSEMBLY 1. Tape   end   of   shaft   to   prevent   damage   to   oil   seal during shaft removal. 2. Remove  four  bolts  (1)  and  remove  end  cover  (2) from gear housing (3).  Set end cover aside. 3. Match    mark    inlet    side    of    gear    housing    (3)    to mounting flange (4) to aid in installation. 4. Separate gear housing (3) from mounting flange (4), making sure that bearing block remain with shafts. 5. Remove  rear  bearing  block  (5)  from  drive  and  idler gear shafts. 6. Remove    idler    shaft    (6)    from    gear    housing    (3). Carefully  remove  drive  shaft  (7)  from  gear  housing, making sure not to damage components. 7. Remove  front  bearing  block  (8)  from  gear  housing (3). 8. Place bearing blocks (5, 8) on a clean work surface, E-seals (9) facing up.  Remove E-seals and backup rings (10) from bearing blocks and discard. 9. Remove   O-rings   (11)   from   gear   housing   (3)   and discard.  Remove dowel pins (12) only if replacement is required. CAUTION Use care when removing oil seal (14) to prevent damage to mounting flange (4). Scratches in seal bore will cause leakage and require replacement of mounting flange. 10.  Place  mounting  flange  (4)  on  a  clean  work  surface, seal retaining  ring  (13)  facing  up.    Carefully  remove retaining ring and oil seal (14) from mounting flange. Discard oil seal. 3-202