757 AMM 飞机维护手册 起落架 CHAPTER 32 - LANDING GEAR 1(165)

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 A.  General
 (1)  
The seals for the doors of the main landing gear are installed around the outer edge of the door openings and on the doors. Move the bulb-type seals along the retainer tracks to assemble. Lubricate the seals and the tracks with vaseline to ease the installation.

 B.  
Access

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

 C.  
Remove the Seals

 S 034-002
 (1)  
Remove the bolts which hold the seal and the seal retainer to the fuselage skin along the inboard edge of the door (Detail C). Remove the seal from the seal retainer.

 S 034-003

 (2)  
To remove the seals at the other locations, pull the seal out of the retainer. Badly damaged seals can be cut to make removal easier.

 TASK 32-12-51-404-004
 3.  Install the Seals on the Doors for the Main Landing Gear (Fig. 401)________________________________________________________
 A.  Consumable Materials
 (1)  D00301 Petroleum Jelly - Vaseline
 

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757
MAINTENANCE MANUAL

SEE A B  SEAL AND RETAINER
SEE D DOOR CUTOUT FOR
THE MAIN LANDING
GEAR
SEAL (TWO SEGMENTS IN THE BRIDGE)
SEE E
SEALSEAL AND RETAINER (EXAMPLE)
SPONGE RUBBER SEE C
BRIDGE SEAL
WHEEL WELL
1
CUTOUT
SEAL 
A 
THE BRIDGE SEAL IS 
SEAL  ALONG THE SPAN OF 
THE DOOR STOP FITTING 
DOOR-MOUNTED 
SEAL 
DOOR-MOUNTED 
SEAL 
SEAL 
RETAINER 
SUPPORT 
MAIN LANDING GEAR DOOR  SEAL PLUG 
SEAL  1 
DOOR 
B  RETAINER SEAL  C 
SEAL 
PLUG 
1  END PLUG 

(SPONGE RUBBER)
1
SUPPORT  SEAL RETAINER SUPPORT
SEAL RETAINER SEGMENT
SEALSEAL PLUG (ONE END BRIDGE SEAL
ONLY) 1SEAL SEGMENT
1 D
END PLUG
1 BOND THE END (SPONGE RUBBER) SEAL PLUGS AND THE BRIDGE 1SEALS TO THE MATING SEALS
E
WITH ADHESIVE Installation of the Door Seal for the Main Landing Gear Figure 401

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A
757
MAINTENANCE MANUAL

 (2)  
A00027 Adhesive - BAC5010, Type 60, RTV 174

 B.
Access

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

 C.
Install the Seals

 S 644-005
 (1)
Apply vaseline to the bottom of the seal and to the retainer track.

 S 434-006

 (2)  
Put the seal in the retainer track. Pull the seal along the track until the seal is fully in the track.

 S 434-007

 (3)  
Lockwire the seal to the retainer at each end of the seal.

 S 434-008

 (4)  
Install the seal plugs in the ends of the seal unless it is an area where the bridge seals are installed.

 S 844-009

 (5)  
Use adhesive to bond the plugs to the mating segment.

 S 434-010

 (6)  
Install the seal and the retainer assembly segments along the inboard edge of the door openings. Use bolts to seal the supports for the retainer assembly (Detail C).

 NOTE: The aft seal segment (Detail D) has a plug seal only at the
　
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