32-44-10
 ALL  ú ú 02 Page 404 ú Oct 10/97 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
A 
747-400 MAINTENANCE MANUAL
 S 094-025
 WARNING:_______ YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO REMOVE THE 
 DOOR LOCKS FROM THE LANDING GEAR DOORS.  THE DOORS CAN CLOSE 
 QUICKLY IF YOU DO NOT REMOVE THE DOOR LOCKS CORRECTLY.  THIS
 CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (8)  
Do this task: "Removal of the Door Locks from the Wing Landing Gear" (AMM 32-00-30/201).
S 094-024
 (9)  
Do this task: "Removal of the Door Locks from the Body Landing Gear" (AMM 32-00-30/201).
S 864-018
 (10)
 Remove hydraulic power if it is not necessary (AMM 29-11-00/201).
S 864-019
 (11)
 Remove electrical power if it is not necessary (AMM 24-22-00/201).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 32-44-10
 ALL  ú ú 02 Page 405 ú Oct 10/97 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
A 
747-400 MAINTENANCE MANUAL
 PARKING BRAKE SWITCH - REMOVAL/INSTALLATION
___________________________________________
 1.  General_______
 A.  This procedure contains two tasks:
 (1)  
The removal of the parking brake switch (referred to as the switch)
 (2)  
The installation of the parking brake switch.
 B.  
The switch, S313, is installed under the upper deck floor in the forward passenger cabin forward of door No. 1.
 TASK 32-44-11-004-065
 2.  Remove the Parking Brake Switch (Fig. 401)_______________________________
 A.  References
 (1)  
AMM 25-22-01/401, Main Passenger Cabin Ceiling Panels
 B.  
Access
 (1)  
Location Zones 211 Passenger Cabin - Nose to First Door, L.H. 221 Control Cabin - L.H.
 C.  
Prepare to Remove the Switch
 S 494-055
 (1)  
Make sure the chocks are installed at all wheels.
S 864-056
 (2)  
Release the parking brake.
S 864-032
 (3)  
Open this circuit breaker and attach a DO-NOT-CLOSE tag:
 (a)  
P6 Main Power Distribution Panel
 1) 6L18 PARK BRAKE
 S 014-057
 (4)  
Remove the fourth middle and left ceiling panels in the passenger compartment forward of door No. 1 (AMM 25-22-01/401).
 D.  
Remove the Switch
 (1)  
Disconnect the electrical wires from the switch.
S 034-058
 (2)  
Remove the screws, washers and nuts that hold the switch and spacer to the structure.
 (3)  
Remove the switch and spacer.
 S 034-000
 S 024-059
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 32-44-11
 ALL  ú ú 01 Page 401 ú Oct 10/97 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
A 
747-400 MAINTENANCE MANUAL 
BRAKE PEDALS 
SEE A 
UPPER DECK FLOOR 
NO. 1 ENTRY DOOR 
CAPTAIN'S BRAKE PEDALS 
BRAKE PEDALS 
PARKING BRAKE PAWL 
A 
STRUCTURE (REF) 
SWITCH ACTUATOR SCREW
A 
(2 LOCATIONS) 
SWITCH 
FWD 
A PARKING BRAKE SWITCH, S313 
SPACER 
B 
A-A 
Installation of the Switch for the Parking Brake Figure 401 
PARKING BRAKE SWITCH, S313 
SEE B 
PARKING BRAKE PAWL 
SWITCH ACTUATOR 
NUT WASHER 
(2 LOCATIONS) 
SWITCH 
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 32-44-11
 ALL  ú ú 01 Page 402 ú Jun 10/91 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
 
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址:747-400 AMM 飞机维护手册 起落架 LANDING GEAR 7(132)