TM10-3930-660-34 10-4 BRAKE CONTROL VALVE - REPAIR (Cont’d) NOTE The maximum accumulator pressure is adjusted by turning plug (22).  The high pressure limit is increased by turning plug into valve.   The low pressure limit is decreased by turning plug (22) out from valve. n.  Install new O-ring (23) on plug (22) Install plug (22) and turn same number of times as recorded during disassembly. o.   Install new O-ring (21) on valve and ball assembly (20).  Insert valve and ball assembly (20) in valve. p.  Install new cup (18) and backup ring (19) in plug (13). q.   Install new O-ring (17) on plug (13) . r. Install guide (16), spring (15) and washer (14) in plug (13) s.    Install plug assembly (13) Torque between 40 and 50 lb ft t. Install new cup (12) and spring (11) on piston (8) Install u.   Install washer (10) v.    Install retaining ring (9) w.  Install new O-ring (7), springs (5 and 6), shim or shims (4) and piston (3) x.   Install new boot (2) and retaining ring (1) 3. INSTALL BRAKE CONTROL VALVE, TM10-3930-660-20 10-15/(10-16 Blank)