32-53-16
ALL ú ú 01 Page 403 ú Oct 10/88
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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 | | | | | 2................…...................…..........…............….............1
B. Consumable Materials
(1)
D00046 Silicone - DC4
(2)
D00153 Hydraulic Fluid - Fire-Resistant, BMS 3-11
(3)
B00083 Cleaner - Aliphatic Naptha, TT-N-95
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32-53-16
ALL ú ú 01 Page 404 ú Oct 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
(4)
A00084 Sealant - DC-3145
C.
References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 29-11-00/201, Main Hydraulic Supply System
(3)
AMM 32-00-30/201, Landing Gear Door Locks
(4)
AMM 32-21-03/201, Nose Gear Torsion Links
(5)
AMM 32-53-11/201, Body Gear Steering Actuators and Yoke Assembly
(6)
IPC 32-53-11 Fig. 5
D.
Access
(1)
Location Zone
755 Body Landing Gear, LH
765 Body Landing Gear, RH
E.
Lock Switch Installation (Fig. 401)
S 494-009
(1) Make sure that you install the ground locks of the landing gear (AMM 09-11-00/201).
S 494-010
WARNING:_______REFER TO AMM 32-00-30/201 FOR LOCK INSTALLATION PROCEDURE. THE DOORS CAN CLOSE QUICKLY IF YOU DO NOT INSTALL THE DOOR LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(2)
Make sure that you install the door locks of the wing and the body landing gear (AMM 32-00-30/201).
S 424-011
(3)
Install the lock switch.
(a)
Lubricate the new O-ring with hydraulic fluid.
(b)
Install the new O-ring on the connector.
(c)
Install the switch with the washer and the nut.
(d)
With the actuator fully retracted and locked, do a check on the continuity of the switch connector pins as follows: 1) Turn the switch clockwise (until the continuity check on
the switch connector pin A to pin B is open circuit, and
pin C to pin D is closed circuit).
2) After you turn the switch to obtain continuity, you must additionally turn the switch clockwise a minimum of 1/2 turn to a maximum of 1-1/2 turns to align the wire bundle and the lockwasher.
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