TM 10-3930-659-34 5-9.  TRANSMISSION CONTROL VALVE MAINTENANCE (Con’t). e.  INSTALLATION 1. If removed, install threaded stud (21) in transmission assembly (8). 2. Install two springs (9), detent pin (10), and detent ball (11) in transmission assembly (8). CAUTION Ensure  that  detent  pin,  detent  ball,  and  springs  remain  in  place  while  performing  steps  3  and  4. Parts may be damaged if they fall out of transmission assembly. 3. Install detent ball (19), spring (20), spring (17), check valve ball (16), and ring (15) on transmission control valve (3). 4. Install gasket (12), plate (13), gasket (14), and transmission control valve (3) on transmission assembly (8) with nut (18). 5. Remove screw (1) from transmission assembly (8). 5-76