C.
Make sure the difference between the internal and the external temperature of the airplane is less than 10°F for a minimum of 1 hour before you adjust the cables.
D.
To remove the uplock release mechanism these steps are necessary:
-Remove the electric actuator
-
Disconnect the door unlock switch
-
Disconnect the cable clamps
-
Disconnect the cables
-
Remove the uplock release mechanism.
E.
To install the uplock release mechanism these steps are necessary:
-Install the uplock release mechanism
-Connect the door unlock switch
-
Install the cable clamps
-
Install and tension the cables
-
Install the electric actuators.
TASK 32-36-02-004-001
2. Removal of the Uplock Release Mechanism for the Wing Gear_________________________________________________________
A. References
(1)
09-11-00/201, Towing
(2)
32-36-01/401, Wing Gear Alternate Extension System Electric Actuator
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32-36-02
ALL ú ú 01 Page 401 ú Oct 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
(3)
IPC 32-36-02 Fig. 1
(4)
SSM 32-35-02
(5)
WDM 32-35-12
B.
Access
(1)
Location Zones
135 Wing Landing Gear Wheel Well, LH
136 Wing Landing Gear Wheel Well, RH
C.
Prepare for the Removal
S 864-002
(1)
Make sure that all the ground locks are installed on the landing gear (Ref 09-11-00/201).
S 014-003
(2)
Remove the electrical actuator for alternate extension of the wing gear (Ref 32-36-01/401).
NOTE: The airplane must be in the configuration per the prepare for
____ removal of the electric actuator for alternate extension of the wing gear for this procedure.
D. Removal of the Uplock Release Mechanism (Fig. 401)
S 034-009
(1)
Disconnect the door unlock switch at junction box J71 (J72 RH side).
S 034-010
(2)
Disconnect the cable clamps from the cable between the door unlock switch and the junction box.
S 034-011
(3)
Loosen the turnbuckles on the cables for alternate extension of the wing gear LGDR-3A and -3B (LGDR-4A and -4B RH).
S 034-012
(4)
Disconnect the cables from the cable quadrant in the uplock release mechanism.
(5)
Hold the uplock release mechanism.
S 034-014
(6)
Remove the four fasteners that hold the uplock release mechanism to the structure.
(7)
Remove the uplock release mechanism.
S 984-013
S 024-015
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32-36-02
ALL ú ú 01 Page 402 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
UPLOCK MECHANISM FOR THE WING GEAR
SEE A
WING GEAR MECHANISM
SEE B LGDR3B (LEFT SIDE) CABLE
UPLOCK MECHANISM
LGDR4B (RIGHT SIDE)
A
CABLE
LGDR3A (LEFT SIDE)
LGDR4A (RIGHT SIDE)
RIG PIN CAM
AE/GD-7 (LEFT SIDE) WING GEAR UPLOCK RELEASE MECHANISM
AE/GD-8 (RIGHT SIDE) FOR ALTERNATE EXTENSION (SUPPORT ASSEMBLY NOT SHOWN)
SEEC 1
ELECTRIC ACTUATOR
OUTBD
UNLOCK FWD
SWITCH
WING GEAR MECHANISM
(LEFT SIDE SHOWN, RIGHT SIDE OPPOSITE)
B
1 SUPPORT ASSEMBLY AND ATTACHMENT DETAILS SHOWN ON DETAIL C.
Alternate Extension System for the Wing Gear
Figure 401 (Sheet 1)
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