747-400 AMM 飞机维护手册 EXHAUST 2(24)

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BOLT  OD  0.3740  0.3745  0.3725  X 
6  BUSHING  ID  0.3750  0.3755  0.3765  0.0030  X 
BOLT  OD  0.3735  0.3745  0.3725  X 
7  FITTING  ID  0.6250  0.6256  -- -0.0000  X 
BUSHING  OD  0.6261  0.6267  -- X 
8  BUSHING  ID  0.5000  0.5007  0.5020  0.0030  X 
PIN  OD  0.4990  0.4995  0.4975  X  1 
9  PIVOT LINK  ID  0.3750  0.3756  0.3770  0.0030  X  1 
BOLT  OD  0.3740  0.3745  0.3725  X 

SHOP REPAIRABLE NO LOOSENESS IS PERMITTED AFTER SWAGING
Blocker Door Drag Link Wear Limits
Figure 601 (Sheet 2)

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 ALL  ú ú N01 Page 604 ú Oct 10/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
C61884
2)  Make sure the bushing, bolt, washers, nut and cotter pin are correctly installed in the drag link.
 NOTE: If the bushing is loose in the drag link, replace
____ the bushing or the drag link (AMM 78-31-15/401).
 (b)  FOR ANCHOR FITTINGS WITHOUT THE ANTI-ROTATION CLIP; Do as follows: 1) Make sure the anchor fitting on the fan cowl is not damaged
 or worn. 2) Make sure the bushing that goes through the drag link is not damaged or worn.
 NOTE: If the bushing is loose in the drag link, replace
____ the bushing or the drag link (AMM 78-31-15/401).
 S 226-007-N00
 (3)  Examine the surface of the drag link for nicks, dents, gouges or other damage.
 NOTE: If the depth of the nick, dent, or gouge is more than
____
 0.020 inch, replace the drag link (AMM 78-31-15/401).
 S 986-036-N00
 WARNING: MAKE SURE ALL PERSONS AND EQUIPMENT ARE OUT OF THE FAN COWL AND
_______ AWAY FROM THE THRUST REVERSER. IF YOU DO NOT DO THIS, INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR WHEN YOU EXTEND THE THRUST REVERSER.
 (4)  
Manually extend the thrust reverser to lift the blocker doors into the deployed position (AMM 78-31-00/201).

 S 216-037-N00

 (5)  
Go into the fan cowl and examine the end of the drag link at the blocker door.

 (a)  
Examine the spherical bearing in the drag link. 1) If the spherical bearing is loose in the race, replace the drag link (AMM 78-31-15/401).

 2)  If the race is loose in the drag link, replace the drag link (AMM 78-31-15/401).

 (b)  
Examine the bolt and the inner diameter of the bushings.

 

 1) If there is a clearance between the shank of the bolt and the bushing, make sure the correct bolt is installed.
 NOTE: If the bolt is correct, replace the bushing or the
____
 drag link (AMM 78-31-15/401).

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(c)  Make sure the bolt, bushing, washers and nut are correctly installed in the drag link.
 E. Put the Airplane Back to Its Usual Condition.
 S 986-038-N00
 WARNING: MAKE SURE ALL PERSONS AND EQUIPMENT ARE OUT OF THE FAN COWL AND
_______ AWAY FROM THE THRUST REVERSER. IF YOU DO NOT DO THIS, INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR WHEN YOU RETRACT THE THRUST REVERSER.
 (1)  
Manually retract the thrust reverser (AMM 78-31-00/201).

 S 446-039-N00

 (2)  
Do the activation procedure for the thrust reverser
 (AMM 78-31-00/201).

 S 446-040-N00

 (3)  
Do the activation procedure for the speed brake control system (AMM 27-62-00/201).

 S 866-041-N00

 (4)  
Remove the DO-NOT-OPERATE tags from the thrust levers.

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