TM10-3930-660-34 10-4 BRAKE CONTROL VALVE - REPAIR This task covers: a Disassembly b Cleaning c Inspection d Assembly Initial Setup Tools Tool Kit, Automotive Machanics Shop Equipment, Automotive Maintenance, Common #2 Less Power Equipment Condition Brake control valve removed, TM10-3930-660-20 Materials/Parts Backup Ring (19) Boot (2) Cup (12, 18) Filter (44) Grease (App B, Item 11) Hydraulic Oil (App B, Item 35) Lint-Free Rags (App B, Item 38) Lockwasher (56, 58) O-ring (7, 17, 21, 23, 28, 34, 35, 38 42, 49, 52, 54, 61, 62) Poppet (40) Wooden Dowel DISASSEMBLY 1 REMOVE  INTERNAL  PARTS (1-54) OF BRAKE     CONTROL VALVE a Remove ring (1) and boot (2) Discard boot (2) b Remove piston (3), shim or shims (4) and springs (5 and 6) c Remove and discard O-ring (7) d Depress piston (8) and remove retaining ring (9) e Remove washer (10) and piston (8) f Remove spring (11) from piston (8) g Remove and discard cup (12) from piston (8) h Remove plug (13) i Remove washer (14), spring (15) and guide (16) 10-9