(e)
Do a check of swivel joints for leaks.
(f)
Move the control lever to the DN position.
S 094-011
WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASKS 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 AND DAMAGE TO EQUIPMENT.
(5) Do this task: "Wing Landing Gear Door Lock Removal"
(Ref 32-00-30/201).
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A 747-400 MAINTENANCE MANUAL
(6) S 094-012Do this task: "Body Landing Gear Door Lock Removal" (Ref 32-00-30/201).
(7) S 864-015Remove hydraulic power if it is not necessary (Ref 29-11-00/201).
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A
747-400 MAINTENANCE MANUAL
WING LANDING GEAR DOOR ACTUATOR - REMOVAL/INSTALLATION
______________________________________________________
1. General
_______
A. This procedure contains these two tasks:
(1)
The removal of the door actuator for the wing landing gear
(2)
The installation of the door actuator for the wing landing gear.
B.
To remove the door actuator these operations are necessary:
(1)
Disconnect the hydraulic hoses from the actuator.
(2)
Remove the actuator.
(3)
Remove the release lever.
C.
To install the door actuator these operations are necessary:
(1)
Install the actuator.
(2)
Install the actuator release lever and the cam.
(3)
Adjust the differential output rods.
(4)
Do a check of the dimensions between the fork of the actuator release lever and the release cam.
(5)
Make sure there are no leaks.
(6)
Adjust the doors (this contains the operational check).
TASK 32-32-27-004-001
2. Wing Landing Gear Door Actuator Removal
_______________________________________
A. References
(1)
09-11-00/201, Towing
(2)
29-11-00/201, Main Hydraulic Supply System
(3)
32-00-30/201, Landing Gear Door Locks
(4)
IPC 32-32-27 Fig. 1, IPC 32-36-08 Fig. 10
B.
Access
(1)
Location Zone
735 Wing Landing Gear, LH
745 Wing Landing Gear, RH
C.
Prepare for the Removal
S 494-042
WARNING: YOU MUST CAREFULLY INSTALL THE GROUND LOCKS IN ALL LANDING
_______ GEAR. AN ACCIDENTAL RETRACTION OF THE LANDING GEAR CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(1) Install the ground locks in all landing gear (Ref 09-11-00/201).
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747-400 MAINTENANCE MANUAL
S 494-030
WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASKS BELOW TO INSTALL
_______ THE DOOR LOCKS ON THE LANDING GEAR DOORS. THE DOORS CAN CLOSE QUICKLY IF YOU DO NOT INSTALL THE DOOR LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(2)
Do this task: "Nose Landing Gear Door Lock Installation"
(Ref 32-00-30/201).
S 494-031
(3)
Do this task: "Body Landing Gear Door Lock Installation"
(Ref 32-00-30/201).
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