TM 10-3930-659-34 5-9.  TRANSMISSION CONTROL VALVE MAINTENANCE (Con’t). NOTE Apply lubricating oil to all parts that are Installed In valve block. 24. Install washer (50) on piston (43). 25. Seat two springs (44 and 51) in piston (43) and slide piston in valve block (31). 26. Apply petrolatum to needle roller (54). 27. Install piston (55), needle roller (54), bushing (53), spring (52), and bushing (42) in cover (40). 28. Install piston (46) and spring (45) in valve block (31). 29. Install piston (49), washer (48), and spring (47) in valve block (31). 30. Install new gasket (41) and cover (40) on valve block (31) with four long screws (57) and short screws (56). 5-74