TM10-3930-660-34 10-4 BRAKE CONTROL VALVE - REPAIR (Cont’d) j. Remove and discard O-ring (17), up (18) and backup ring (19). k.   Remove valve and ball assembly (20). l. Remove and discard O-ring (21) from valve and ball assembly (20). m. Count and record number of turns required to remove plug and locking pin assembly (22) Remove and discard O-ring (23) from plug (22). n.   Remove spring (24), seat (25) and ball (26) o.    Remove plug (27) Remove and discard O-ring (28) from plug (27) p.   Remove spring (29), stop (30), ball (31), spool (32) and insert (33). q.   Remove and discard O-rings (34 and 35) from insert (33). r. Loosen nut (36) and remove adjusting screw (37). s.   Remove and discard O-ring (38) from adjusting screw (37). t. Remove spring (39), poppet (40), seat (41), O-ring (42), washer (43) and filter (44) Discard poppet (40), O-ring (42) and filter (44). WARNING Plug (45) is under tension of spring (47) Use care when removing retaining ring to prevent personal injury u    Depress plug (45) and remove retaining ring (46) 10-10