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757 MAINTENANCE MANUAL
 MAIN GEAR DOOR - REMOVAL/INSTALLATION
_____________________________________
 1.  General
_______
 A.  This procedure contains two tasks. The first task removes the door for the main landing gear. The second task installs the door for the main landing gear.
 TASK 32-12-01-004-021
 2.  Remove the Door for the Main Landing Gear (Fig. 401)
_________________________________________
 A.  Equipment
 (1)  Handling Equipment, MLG Door and AC Door -
B32043-1 ú (2) Lift Fixture, Engine Accessory - A71015-87
 B.  References
 (1)  
AMM 29-11-00/201, Pressurize/Depressurize Main Hydraulic System

 (2)  
AMM 32-00-15/201, Landing Gear Door Locks

 (3)  
AMM 32-00-20/201, Landing Gear Downlocks

 C.  
Access

 (1)  
Location Zones
 731/741 Main Landing Gear (MLG)
 732/742 MLG Body Doors
 733/743 MLG Oleo Doors

 D.  
Prepare for the removal of the door.

 S 494-002
 (1)  Make sure the downlocks are installed on the nose and main landing gear (AMM 32-00-20/201).
 S 494-022
 WARNING: USE THE PROCEDURE IN AMM 32-00-15/201 TO INSTALL THE DOOR
_______ LOCKS. THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (2)  
Open the doors for the landing gear and install the door locks (AMM 32-00-15/201).

 S 864-004

 (3)  
Remove the pressure from the left hydraulic system (AMM 29-11-00/201).

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757
MAINTENANCE MANUAL

DOOR ACTUATOR
B
DOOR FOR
B
THE MAIN
C
LANDING GEAR
FWD  A
A
C INBD B
2.
 SPACER  B

3.
 DOOR

(4 LOCATIONS) ACTUATOR
4. WASHER
1. PIN
6. CENTER HINGE 8. DOOR HINGE 5. NUT SUPPORT BEAM FWD 9. WASHER
7. HINGE BOLT
A-A
10. NUT
12. DOOR FOR THE MAIN 11. BONDING
JUMPER
LANDING GEAR
15. WASHER
14. DOOR HINGE
(2 LOCATIONS)

13. NUT (2 LOCATIONS)
16. HINGE PIN B-B FWD
12. DOOR FOR THE MAIN LANDING GEAR
C-C
FWD
Installation of the Main Landing Gear Door
Figure 401

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757 MAINTENANCE MANUAL
 E. Remove the door.
 S 014-005
 (1)  
Remove the pin (1) to disconnect the rod end of the door actuator

 (3)
 from the door beam (6) (View A-A).

 (a)  
Hold the actuator out of the area with a rope.

 S 014-006
 (2)  
Position the lift fixture and attach the door to the handling equipment. Use the instructions supplied with the tools.

 S 864-023

 (3)  
Lift the fixture to support the door for the main landing gear.

 S 034-008

 (4)  
Disconnect the bonding jumpers (11) from the door.

 S 014-009

 (5)  
Remove the hinge bolts (7) to disconnect the door (12) from the forward and the aft hinges (8) (View B-B).

 S 014-010

 (6)  
Remove the hinge pin (16) to disconnect the door (12) from the center hinge (14) (View C-C).

 S 024-011
　
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本文鏈接地址：757 AMM 飛機(jī)維護(hù)手冊(cè) 起落架 CHAPTER 32 - LANDING GEAR 1(153)