(8)  
Adjust the cables LGDR1A and LGDR1B (LGDR2A and LGDR2B, right side) from the differential to the uplock mechanism (AMM 32-35-00/501).

 S 414-023

 (9)  
Install the electrical actuator (AMM 32-35-01/401).

 S 714-024

 (10)
 Do an operational test of the alternate extension system for the body landing gear (AMM 32-35-00/501).

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 S 984-025
 (11) Manually move the left (right) uplock hook to the closed (gear up) position.
 NOTE: You can use a metal uplock actuating tool to move the uplock
____
 hook to the closed position (Fig. 402).

 S 864-041
 WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL
_______ SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDERS, ELEVATORS, FLAPS, SPOILERS, LANDING GEAR, AND THRUST REVERSERS CAN MOVE QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (12)
 Pressurize hydraulic system 1 (AMM 29-11-00/201).

 S 714-027

 (13)
 Do an operational test of the uplock hook:

 (a)  
Move the control handle for the landing gear to the DN position.

 (b)  
Make sure the uplock hook moves to the open position and stays.

 S 714-028
 (14) Make sure the white bar on the valve slide is between the edges of the slot (AMM 32-33-07/401).
 NOTE: The slot is on the aft edge of the sequence valve.
____
 E. Put the Airplane to Its Usual Condition
 S 864-029
 (1)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:

 (a)  
P6, Main Power Distribution Panel
 1) 6C28, ALT LG EXT NOSE
 2) 6C31, ALT LG EXT BODY L
 3) 6C32, ALT LG EXT BODY R

 (2)
Remove the pressure from hydraulic system 1 (AMM 29-11-00/201).

 S 864-030
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 S 094-031
 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 OR DAMAGE TO EQUIPMENT.
 (3)  
Do this task: "Wing Landing Gear Door Lock Removal" (AMM 32-00-30/201).

 S 094-042

 (4)  
Do this task: "Body Landing Gear Door Lock Removal" (AMM 32-00-30/201).

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747-400 MAINTENANCE MANUAL
 BODY LANDING GEAR UPLOCK MECHANISM - INSPECTION/CHECK
_____________________________________________________
 1.  General
_______
 A.  This procedure contains a task to examine the uplock mechanism for the body landing gear for worn areas.
 B.  To do the inspection of the uplock mechanism, examine these parts for worn areas:
 (1)  
The uplock hook

 (2)  
The uplock roller

 (3)  
The uplock actuator

 (4)  
The attach bolts for the uplock actuator.

 C.  
You must remove the uplock actuator for the body landing gear to do the inspection/check.

 TASK 32-33-08-206-001
 2.  Inspection of the Uplock Mechanism of the Body Landing Gear
　
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