TM 10-3930-664-24 D.  INSTALLATION 1. Install  shuttle  spool  (24)  and  shuttle  sleeve  (25) into transmission bore. 2. Lubricate new O-ring (22) with clean transmission   oil   and   install   onto   spool   sleeve (19).    Install  ball  (21)   and   pin   (20)   into   spool sleeve. 3. Insert spool sleeve (19) into regulator spool (15) with pin (20) facing up.  Secure using snap  ring (18). 4. Install   regulator   spool   (15),   spring   (16),   and spool    stop    (17)    into    modulator    sleeve    (11). Secure using snap ring (14). 5. Lubricate  new  O-ring  (23)  with  clean  lubricating oil and install onto modulator sleeve (21). 6. Install stop pin (6), springs (7, 8, 9), accumulator spool    (10),    and    modulator    sleeve    (11)    into transmission (13). 7. Lubricate new O-ring (5) with clean lubricating oil and install onto modulator housing (4). 8. Install        modulator            housing            (4)        into transmission (13). 9. Install        transmission    filler    hose        (26)    onto transmission fitting.  Secure by tightening clamp (27). 10. Apply loctite to threads of nine screws (2).  Install top   transmission   cover   (1)   using   screws   and washers (3). FOLLOW-ON MAINTENANCE: Service transmission (para.  2-93) END OF TASK 3-116