(6)
Manual Seat Back Lumbar Support In/Out Adjustment
(a) Operation of the manual seat back lumbar support in/out adjustment control handwheel, located on outboard side of first observer seat and on inboard side of second observer seat, allows the seat back lumbar support pad to be manually adjusted fore and aft incrementally.
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ALL ú ú 07 Page 6 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
(7) Manual Armrest Adjustment
(a) Operation of the manual armrest adjustment control knob, located at forward end of armrest, allows the armrest to be manually raised or lowered incrementally. The armrest can be folded to a stowed position behind the seat back to reduce overall width of seat for pilot ingress and egress.
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25-11-00
ALL ú ú 07 Page 7 ú Feb 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 FAULT ISOLATION/MAINT MANUAL
FLIGHT COMPARTMENT SEATS
COMPONENT SHT 102 FIG. QTY ACCESS/AREA REFERENCE
CIRCUIT BREAKER 1 117AL, E/E MAIN EQUIP CTR, P414
CAPT PWR SEAT, C878 1 414D08 *
CIRCUIT BREAKER 1 117AL, E/E MAIN EQUIP CTR, P415
HANDWHEEL - MANUAL ADJUSTMENT, SEAT BACK F/O PWR SEAT, C877 1 415H32 *
LUMBAR, IN/OUT 1&2 1 FLT COMPT SEATS 25-11-00
LUMBAR, UP/DOWN 1&2 1 FLT COMPT SEATS 25-11-00
HANDWHEEL - MANUAL ADJUSTMENT, THIGH PAD 1 1 CAPT & F/O SEATS 25-11-00
KNOB - MANUAL ADJUSTMENT, ARMREST 1&2 2 FLT COMPT SEATS 25-11-00
LEVER - INERTIA REEL LOCK LEVER - MANUAL ADJUSTMENT, SEAT 1&2 1 FLT COMPT SEATS 25-11-00
HORIZONTAL CONTROL 1&2 1 CAPT, F/O & F/OBS SEATS 25-11-00
LATERAL CONTROL 2 1 F/OBS SEAT 25-11-00
RECLINE CONTROL 1&2 1 FLT COMPT SEATS 25-11-00
VERTICAL CONTROL MOTOR - HORIZONTAL ACTUATOR 1&2 1 CAPT, F/O & F/OBS SEATS 25-11-00
CAPTAIN SEAT, YM3M01 1 1 CAPT & F/O SEATS *
FIRST OFFICER SEAT, YM4M01 MOTOR - VERTICAL ACTUATOR 1 1 CAPT & F/O SEATS *
CAPTAIN SEAT, YM3M02 1 1 CAPT & F/O SEATS *
FIRST OFFICER SEAT, YM4M02 RELAYS - CAPTAIN SEAT 1 1 CAPT & F/O SEATS *
AFT POSITION, YM3R02 1 CAPT SEAT *
DOWN POSITION, YM3R05 1 CAPT SEAT *
FWD POSITION, YM3R01 1 CAPT SEAT *
POWER, YM3RO3 1 CAPT SEAT *
UP POSITION, YM3R04 RELAYS - FIRST OFFICER SEAT 1 CAPT SEAT *
AFT POSITION, YM4R02 1 F/O SEAT *
DOWN POSITION, YM4R05 1 F/O SEAT *
FWD POSITION, YM4R01 1 F/O SEAT *
POWER, YM4RO3 1 F/O SEAT *
UP POSITION, YM4R04 1 F/O SEAT *
SEAT - CAPTAIN, M536 (YM3) 1 1 FLT COMPT 25-11-01
SEAT - FIRST OBSERVER 2 1 FLT COMPT 25-11-03
SEAT - FIRST OFFICER, M537 (YM4) 1 1 FLT COMPT 25-11-01
SWITCHES - CAPTAIN SEAT SEAT - SECOND OBSERVER 2 1 FLT COMPT 25-11-03
AFT POSITION LIMIT, YM3S03 1 CAPT SEAT *
DOWN POSITION LIMIT, YM3S06 1 CAPT SEAT *
FWD POSITION LIMIT, YM3S01 1 CAPT SEAT *
HORIZONTAL CONTROL - FWD/AFT, YM3S02 1 1 CAPT SEAT *
UP POSITION LIMIT, YM3S04 1 CAPT SEAT *
SWITCHES - FIRST OFFICER SEAT VERTICAL CONTROL - UP/DN, YM3S05 1 1 CAPT SEAT *
AFT POSITION LIMIT, YM4S03 1 F/O SEAT *
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