747-400 AMM 飞机维护手册 机载辅助动力 1(117)

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 cork sheet, and on top of the radius filler (6).
 NOTE: The heads of the bolts do not have to have the
____ cork compound on them.
 (d)  Install the upper and the lower door seals.
 1)  Attach the door seals with the backup plates, screws, and the nuts.
 S 414-012
 CAUTION: WHEN THE DOOR INSTALLATION IS COMPLETED, MAKE SURE YOU REMOVE
_______ ALL THE TOOLS AND MATERIALS FROM THE INLET PLENUM. DAMAGE TO THE APU CAN OCCUR.
 (2) Install the actuator for the air inlet door (Ref 49-15-04/401).
 TASK 49-15-03-404-014
 4.  Air Inlet Door Installation (New Door) (Fig. 401)
______________________________________
 A.  Consumable Materials
 (1)  G00083 - Cork Compound, BMS 8-103
 B. Parts ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Air Inlet Door Assembly (Air | 49-15-51 | 01 | 215 | | | | Inlet Door) | | | | 2.......….......…...................................…...........…......….......1
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747-400
MAINTENANCE MANUAL

 C. References
 (1)  
49-15-03/601, Air Inlet Door

 (2)  
49-15-04/401, Air Inlet Door Actuator

 D.
Access

 (1)  
Location Zone 318 APU Compartment-Upper Inner and Outer Side, RH

 (2)  
Access Panel
 317AL APU Access Door
 318AR APU Access Door

 E.
Procedure

 S 034-045
 (1)  
Remove the seal assemblies and the fasteners from the removed air inlet door.

 S 034-046

 (2)  
Remove the seal assemblies and the fasteners from the upper and lower edges of the inlet opening.

 S 424-047

 (3)  
Install the air inlet door (1):

 (a)  
Set the air inlet door (1) in the air inlet duct.

 (b)  
Temporarily attach the door hinges (3) to the inlet duct with the bolts (4) and the washers (5).

 NOTE: The installed door will have clearance areas of
____ approximately 0.110 inch (2.79 mm) at the upper and lower sides.
 1) Do not tighten the bolts (4) at this time.
 S 974-017
 (4)  
Measure the air inlet door:

 (a)  
Hold the door tightly closed.

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MAINTENANCE MANUAL

 (b) Measure and make marks on the door to get a clearance area of
 0.300 inch (7.62 mm) at the upper and lower sides.
 S 824-018
 (5)  Adjust the air inlet door (1):
 (a) Remove the air inlet door (1).
 (b) Cut the door to the marks you made in step (7).
 (c) Remove the sharp edges.
 S 434-019
 (6)  Attach the door seal (2) with the backup plates, screws, and the
 nuts.
 S 424-020
 (7)  Set the air inlet door (1) on the air inlet duct.
 S 434-048
 (8)  Attach the door hinges (3) to the air inlet duct with the radius
 filler (6), washers (5), and the bolts (4).
 S 344-049
 (9)  Apply the cork compound to the clearance area on the two sides of
 the radius filler (6).
 (a) Make sure the cork compound is between the radius filler (6)
 and the cork sheet, and on top of the radius filler.
 NOTE: The heads of the bolts do not have to have the cork____
 compound on them.

 S 434-021
 (10)
 Install the upper and lower inlet seals with the backup plates, screws, and the nuts.
　
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