32-53-04
ALL ú ú 01 Page 404 ú Oct 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
~.......................................................................... | BIT TABLE | ............................................................................ | | Bit Condition | ............................................................................ | Switch | Port/Label | Bit | 0 | 1 | ............................................................................ | R BODY GR | E/070/271/00 | 26 | UNLOCKED | LOCKED | | STRNG LEFT PRI | | | | | ............................................................................ | R BODY GR | E/070/271/00 | 27 | UNLOCKED | LOCKED | | STRNG RIGHT PRI| | | | | ............................................................................ | L BODY GR | E/070/271/00 | 28 | UNLOCKED | LOCKED | | STRNG RIGHT PRI| | | | | ............................................................................ | L BODY GR | E/070/271/00 | 29 | UNLOCKED | LOCKED | | STRNG LEFT PRI | | | | | ............................................................................ | R BODY GR | E/070/273/00 | 26 | UNLOCKED | LOCKED | | STRNG LEFT ALT | | | | | ............................................................................ | R BODY GR | E/070/273/00 | 27 | UNLOCKED | LOCKED | | STRNG RIGHT ALT| | | | | ............................................................................ | L BODY GR | E/070/273/00 | 28 | UNLOCKED | LOCKED | | STRNG RIGHT ALT| | | | | ............................................................................ | L BODY GR | E/070/273/00 | 29 | UNLOCKED | LOCKED | | STRNG LEFT ALT | | | | | ............................................................................ | BODY GEAR | C/026/003/10 | 16 | OPEN | CLOSED | | STRNG ARM | | | | | ............................................................................ | L BODY GEAR | C/026/005/10 | 15 | NO PRESSURE| PRESSURE | | PRESS | | | | | ............................................................................ | R BODY GEAR | C/026/004/01 | 15 | NO PRESSURE| PRESSURE | | PRESS | | | | | 2................…...................…..........…............….............1
B. Consumable Materials
(1)
D00153 Hydraulic Fluid, BMS 3-11
C.
References
(1)
AMM 09-21-00/201, Taxiing
(2)
AMM 20-11-14/701, Metal Surface Cleaning
(3)
AMM 24-22-00/201, Manual Control
(4)
AMM 29-11-00/201, Main Hydraulic Supply System
(5)
AMM 32-00-30/201, Landing Gear Door Locks
(6)
AMM 32-21-03/201, Nose Gear Torsion Links
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
32-53-04
ALL ú ú 01 Page 405 ú Oct 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
(7)
AMM 32-53-11/201, Body Gear Steering Actuators and Yoke Assembly
(8)
IPC 32-53-51 Fig. 1
(9)
SSM 32-53-01, 32-53-02
(10)
WDM 32-53-11, 32-53-12, 32-53-13
D.
Access
(1)
Location Zones
755 Body Landing Gear, LH
765 Body Landing Gear, RH
E.
Install the Control Module (Fig. 401)
S 864-012
WARNING: USE THE PROCEDURE IN AMM 32-00-30/201 TO INSTALL THE DOOR
_______ LOCKS. THE DOORS MOVE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT IF THE LOCKS ARE NOT CORRECTLY INSTALLED.
(1)
Make sure the door locks are installed in the wing and body gear doors (AMM 32-00-30/201).
S 434-013
(2)
Make sure the check valve is installed in the return port of the module assembly.
S 214-047
(3)
Make sure the arrow on the check valve points away from the body of the module.
S 434-014
(4)
Install new O-rings in the hydraulic fittings and the check valve for the return port, if it is necessary.
(a)
Lubricate the O-rings, backup rings and fittings with hydraulic fluid.
(b)
Install the hydraulic fittings and the check valve with new O-rings and backup rings in the port of the module assembly.
S 124-015
(5)
Clean the faying surfaces between the module and the structure (AMM 20-11-14/701).
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