747-400 AMM 飞机维护手册 EXHAUST 2(50)

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 NOTE:____ If the dimension you measured falls between 0.020 inch increments, do the quantity of turns for the subsequent (higher) 0.020 inch increment.
 (7)  S 825-027-N00If the clearance between the feedback stop bolt and the stop bracket slot was less than 0.030 inch (0.762 mm), do this adjustment: (a) Turn the actuator rod end clockwise one-half turn for each 0.020 inch (0.508 mm) of clearance that is less than the specified dimension.
 NOTE:____ If the dimension you measured falls between 0.020 inch increments, do the quantity of turns for the subsequent (higher) 0.020 inch increment.
 (8)  S 025-028-N00Remove the cap from the top flexshaft port on the actuator.
 (9)  S 985-029-N00Turn the flexshaft drive with a 3/16-inch square drive to retract the actuator. Turn the flex shaft drive until the actuator is in the fully retracted posistion.
 NOTE:____ Make sure the actuator rod end is aligned with the clevis on the thrust reverser sleeve before you measure the clearance.

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 78-31-17
 ALL  ú ú N01 Page 508 ú Feb 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
S 215-030-N00
 (10) Measure the clearance between the rod end collar and the actuator cylinder again (dimension A in Fig. 501).
 NOTE: Dimension A must be 0.010 - 0.018 inch (0.254 -
____
 0.457 mm) when the actuator is fully retracted.
 S 825-031-N00
 (11)
 If dimension A continues to be out of limits, you must replace the center locking actuator with one that is correctly adjusted.

 S 425-032-N00

 (12)
 After you correctly adjust or replace the actuator, safety wire the rod end to the actuator cylinder with wire to keep the correct rod end adjustment.

 S 425-035-N00

 (13)
 Safety wire the lock lever to the actuator with wire to prevent the release of the actuator lock.

 S 405-033-N00

 (14)
 Do the installation procedure for the Thrust Reverser Locking Hydraulic Actuator (AMM 78-31-17/401).

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 78-31-17
 ALL  ú ú N01 Page 509 ú Oct 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
THRUST REVERSER ROTARY FLEX SHAFTS AND TUBES -
______________________________________________ REMOVAL/INSTALLATION
____________________
 1.  General_______
 A.  This procedure gives the instructions to remove and install the rotary flex shafts and tubes for the thrust reversers.
 B.  The rotary flex shafts and tubes are installed on the forward face of the thrust reverser C-duct.
 C.  You can get access to the rotary flex shafts and tubes through the applicable fan cowl panels.
 D.  The thrust reverser rotary flex shaft is called the flex shaft for this procedure.
 TASK 78-31-18-004-001-N00
 2.  Remove the Thrust Reverser Rotary Flex Shafts and Tubes (Fig. 401)_______________________________________________________
 A.  References
 (1)
AMM 27-81-00/201, Leading Edge Flap System

 (2)
AMM 71-11-04/201, Fan Cowl Panels

 (3)
AMM 78-31-00/201, Thrust Reverser System

 (4)
IPC 78-31-01 Fig. 10

 B.  
Access

 (1)  
Location Zone 415 and 416 Engine 1 - Thrust Reverser Halves 425 and 426 Engine 2 - Thrust Reverser Halves 435 and 436 Engine 3 - Thrust Reverser Halves 445 and 446 Engine 4 - Thrust Reverser Halves

 (2)  
Access Panel
 413 Fan Cowl Panel, LH - Engine 1
 414 Fan Cowl Panel, RH - Engine 1
 423 Fan Cowl Panel, LH - Engine 2
 424 Fan Cowl Panel, RH - Engine 2
 433 Fan Cowl Panel, LH - Engine 3
 434 Fan Cowl Panel, RH - Engine 3
 443 Fan Cowl Panel, LH - Engine 4
 444 Fan Cowl Panel, RH - Engine 4

 C.  
Remove the Rotary Flex Shafts and Tubes for the Thrust Reverser

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