(3)  
AMM 29-11-00/201, Main Hydraulic Supply System

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MAINTENANCE MANUAL

 (4)  
AMM 32-00-30/201, Landing Gear Door Locks

 (5)  
AMM 32-11-15/401, Wing Gear Walking Beam

 (6)  
AIPC 32-11-01 Fig. 1

 (7)  
AIPC 32-11-02 Fig. 2

 (8)  
AIPC 32-11-15 Fig. 2

 (9)  
AIPC 32-32-01 Fig. 5

 C.
Access

 (1)  
Location Zone
 735 Wing Landing Gear, LH
 745 Wing Landing Gear, RH

 D.
Prepare for the Removal

 S 494-031
 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 (AMM 09-11-00/201).
 S 494-003
 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: "Installation of the Door Locks on the Doors for the Wing Landing Gear" (AMM 32-00-30/201).

 S 494-030

 (3)  
Do this task: "Installation of the Door Locks on the Doors for the Body Landing Gear" (AMM 32-00-30/201).

 S 864-004

 (4)
Remove hydraulic pressure from system No. 4 (AMM 29-11-00/201).

 S 014-005

 (5)  
Lower the access panel for the trailing edge (571AB LH and 671AB RH) (AMM 06-09-08/201).

 E.
Remove the Actuator.

 (1)
Make a note of the position of the hose clamps (6) (Fig. 401).

 S 974-006
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747-400 MAINTENANCE MANUAL
SEE A
1.  
WING GEAR
ACTUATOR

2.  
WALKING BEAM (2 LOCATIONS)

3.  
BOLT

C
B
A
C
4. TUBE B A
5.  BOLT
ASSEMBLY HYDRAULIC
A
HOSE
Wing Landing Gear Actuator Installation
Figure 401 (Sheet 1)

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Wing Landing Gear Actuator Installation
Figure 401 (Sheet 2)

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13. NUT
12. UNION REDUCER
8. CLIP BOLT LUG CLAMP BAND
ACTUATOR
D-D

Wing Landing Gear Actuator Installation
Figure 401 (Sheet 3)

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