(2)
AMM 25-50-03/401, Bulkhead Lining
(3)
AMM 24-22-00/201, Electrical Power Control
B.
Access
(1)
Location Zones 165 Area aft of bulk cargo compartment (Left)
C.
Prepare for the Removal
S 014-009
(1)
If you will remove the motor from the bulk cargo compartment, do the steps that follow:
(a)
Open the aft cargo door, 822 (AMM 06-46-00/201)
(b)
Remove the aft endliner from the bulk cargo compartment (AMM 25-50-03/401).
S 864-008
(2)
If you will remove the motor from the out side of the airplane and the outflow valve is not open, do the steps that follow:
(a)
Turn the MODE SELECT selector, on the pilots overhead control panel P5, to MAN.
(b)
Turn and hold the MANUAL selector, on the P5 panel, to CLIMB until the valve is fully open.
S 864-007
(3) Put a DO-NOT-OPERATE tag on the MODE SELECT selector, on the P5 panel.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
21-31-05
ALL ú ú 01 Page 401 ú Jan 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
DC MOTOR
ELECTRICAL
AUTO 2 AC MOTOR CONNECTOR
SEE B
ACTUATOR
AUTO 1 AC MOTOR
SEE B POTENTIOMETER
ELECTRICAL
AC MOTORS CONNECTOR
ELECTRICAL
CONNECTORS
SEE A DC MOTOR AND
POTENTIOMETER
ACTUATOR
SUPPORT
FRAME
INBD FWD
A
ACTUATOR
AC MOTOR
SCREWS (3 PLACES)
B
Cabin Pressure Outflow Valve Actuator AC Motor Installation Figure 401
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
21-31-05
ALL ú ú 01 Page 402 ú Dec 20/88
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
S 864-018
WARNING: IF YOU USE THE ACCESS THROUGH THE CABIN PRESSURE OUTFLOW VALVE,
_______ MAKE SURE THE ELECTRICAL POWER IS OFF, THE CIRCUIT BREAKERS ARE OPEN, AND THE DO-NOT-CLOSE TAGS ARE ATTACHED. IF ELECTRICAL POWER IS SUPPLIED TO THE VALVE WHEN IT IS IN THE FULLY OPEN POSITION, THE VALVE WILL MOVE TO THE NOT FULLY OPEN POSITION. THE MOVEMENT OF THE VALVE CAN CAUSE INJURY TO PERSONS.
(4)
Remove the electrical power (AMM 24-22-00/201).
S 864-006
(5)
Open these circuit breakers, on the overhead circuit breaker panel P11, and attach the DO-NOT-CLOSE tags:
(a)
11B14, CABIN ALTITUDE CONTROL MANUAL
(b)
11B15, CABIN ALTITUDE CONTROL SELECT
(c)
11N15, CABIN ALTITUDE CONTROL AUTO 1
(d)
11N24, CABIN ALTITUDE CONTROL AUTO 2
S 034-005
(6)
Disconnect the electrical connector from the applicable (No. 1 or No. 2) AC motor.
(a)
If you will remove both AC motors, put an identification tag on the electrical connectors.
S 034-004
(7)
Loosen the screws on the AC motor.
S 024-003
(8)
Remove the AC motor.
TASK 21-31-05-404-002
3. Install the Outflow Valve Actuator AC Motor (Fig. 401)___________________________________________
A. References
(1)
AMM 06-46-00/201 Entry, Service, and Cargo Doors Access Doors and Panels
(2)
AMM 25-50-03/401, Bulkhead Lining
(3)
AMM 24-22-00/201, Electrical Power Control
B.
Access
(1)
Location Zones 165 Area aft of bulk cargo compartment (Left)
C. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：757 AMM 飞机维护手册 空调 AIR CONDITIONING 1(109)
