Ejection seat systems—Continued ESCAPAC lE-1 ejection seat—Con- tinued maintenance requirements—Contin- ued seat removal and installation, 6-17 to 6-18 secondary ejection control, 6-20 to 6-21 system description, 6-1 to 6-3 Martin-Baker SJU-5/A ejection seat, 6-25 to 6-44 component operation, 6-36 to 6-37 catapult, 6-36 main beam assembly, 6-36 to 6-37 manifold check valve, 6-36 component test and test equipment, 6-36 to 6-44 barostat check-out, 6-42 drogue gun check-out, 6-39 to 6-40 other tests, 6-43 to 6-44 time delay check-out, 6-41 to 6-42 time-release mechanism check- out, 6-40 to 6-41 seat bucket supported components, 6-37 to 6-38 automatic harness release system, 6-38 ejection seat initiator, 6-38 leg restraint system, 6-38 manual override initiator, 6-38 manual override system, 6-38 pin puller, 6-38 seat survival kit, 6-38 system components, 6-28 to 6-36 catapult, 6-28 main beam assembly, 6-30 to 6 - 3 2 manifold check valve, 6-30 seat bucket, 6-33 to 6-36 system operation, 6-26 to 6-28 aircraft and seat separation, 6-26 to 6-28 catapult firing and initial seat movement, 6-26 firing sequence, 6-26 Ejection seat systems—Continued safety precautions, 6-73 Stencel SJU-8/A ejection seat, 6-44 to 6-71 component maintenance, 6-62 to 6-71 airspeed/altitude sensor check- out , 6-69 to 6-71 ejection control assembly check- out, 6-66 emergency release handle assembly check-out, 6-63 to 6-65 inertia reel assembly check-out, 6-66 to 6-67 safe/arm control assembly check- out, 6-62 to 6-63 seat height adjustment actuator check-out, 6-67 to 6-69 subsystems, 6-55 to 6-62 catapult subsystem, 6-56 to 6-58 DART stabilization subsystem, 6-58 ejection initiation subsystem, 6-55 to 6-56 personnel parachute subsystem, 6-58 to 6-60 post-ejection sequencing sub- system, 6-58 safe/arm control assembly and link subsystem, 6-55 seat/man and survival kit release sequencing subsystem, 6-60 survival kit, 6-60 to 6-62 sustainer thrust subsystem, 6-58 system operation, 6-47 to 6-55 ejection mode sequences, 6-48 to 6-54 emergency parachute operation and seat separation, 6-54 to 6-55 Emergency survival equipment, 6-22 to 6-23 Environmental control systems, 3-2 to 3-4 bleed-air leak detection, 3-4 bleed-air system, 3-3 to 3-4 Equipment cooling systems, 3-15 to 3-28 air-to-air system, 3-15 to 3-16 vapor cycle air-conditioning system, 3-16 INDEX-3 to 3-28 ESCAPAC IE-1 ejection seat, 6-1 to 6-25 External canopy and hatch jettison initiator 2-16 to 2-19