TM10-3930-660-34 16-8.  FRAME TILT VALVE - REPAIR (Cont’d) c. Install disk assembly (12) on shaft (13).The side of disk assembly (12) with holes drilled through it must face away from cap (20).Ensure that one of two    holes    drilled    on    outer    surface    of    disk assembly (12) align with stop pin (19). d. Install shaft washer (11) on shaft (13). e. Install four seal springs (10), eight back-up rings (9),  four  new  O-rings  (8)  and  four  seals  (7)  in body (4). f. Install new O-ring (6) in groove on body (5). g. Install  body  (5)  to  cap  (20).    Install  four  socket head screws (4). 3. INSTALL FRAME TILT VALVE, TM10-3930-660-20. 16-36