747-400 AMM 飞机维护手册 STANDARD PRACTICES - AIRFRAME(5)

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 ~.......................................................... | TABLE I | ............................................................ | CABLE | MM LOCATION | ............................................................ | | | | FLIGHT CONTROLS | | | - AILERON & AILERON TRIM | 27-00-01-0 | | - SPOILER | 27-00-01-0 | | - SPEED BRAKE | 27-00-01-0 | | - RUDDER | 27-00-01-0 | | | | | LANDING GEAR | | | - ALTERNATE EXTENSION | 32-00-40-0 | | - BRAKES | 32-00-40-0 | | - DOOR GROUND RELEASE | 32-00-40-0 | | - EXTENSION/RETRACTION | 32-00-40-0 | | - NOSE WHEEL STEERING | 32-00-40-0 | | | | 2........................................….................1
 TASK 20-11-03-004-031
 2.  Remove Control Cables_____________________
 A.  Equipment
 (1) Cable Clamps - A20005-9
 B.  Consumable Materials
 (1) G00270 Masking Tape
 C.  Procedure
 S 934-003
 (1) Use masking tape to make a mark on the cable and fittings.
 NOTE: The masking tape lets you refer to the initial position when
____
 you install the new cable.

 S 034-004
 (2) Loosen the turnbuckles to release the tension (AMM 20-11-02/401).
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 20-11-03
 ALL  ú ú 01 Page 401 ú Jun 18/01
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747-400 MAINTENANCE MANUAL
 S 034-005
 (3)  
If you remove the applicable engine control cable section, remove the cable stops (AMM 20-11-17/401).

 S 034-006

 (4)  
If applicable, remove the control cable air seal (AMM 20-11-04/401).

 S 434-007

 (5)  
Install cable clamps on the cable you do not remove to keep light tension on the cable. If you can isolate the cable between the rigging pin locations, install the rigging pins through the applicable drum or quadrant.

 NOTE: Light tension on the cable that you do not remove will
____ prevent wind off on the cable drums. Light tension will also make sure the cables do not move out of the pulley guides.
 S 834-008
 (6)  Install the new cable at the same time you remove the old cable. Use the old cable to pull the new cable into position.
 NOTE: If you do not attach the new cable to the old cable before
____ you remove the old cable, you will have a problem routing the new cable.
 TASK 20-11-03-404-032
 3. Install Control Cables
______________________
 A. Equipment
 (1)  
Tensiometer - Commercially available.

 (2)  
Cable Clamps - A20005-9

 B.
Consumable Materials

 (1)  
D00015 Grease - Airplane ball and roller
 bearings, cables, corrosion preventive,
 BMS 3-24

 (2)  
G00034 Cloth - Lint-free, dry

 (3)  
G00270 Masking Tape

 (4)  
C00308 Cable Corrosion Prevention Material

 C.
Install Prefabricated Cable

 NOTE: You may wish to replace zinc-only coated cables with tin-over-zinc
____ coated cables to minimize the amount of initial cable stretch.
 S 014-009
 (1)  Remove the necessary pulleys and control cable air seals (AMM 20-11-04/401). See the applicable chapter for cable location.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 20-11-03
 ALL  ú ú 01 Page 402 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 834-010
 (2)  Attach the new cable to the old cable. Pull the old cable out, which pulls the new cable through at the same time. Keep light tension on the new cable.
 NOTE: If you do not attach the new cable to the old cable, you will
____
 have a problem in routing the new cable.

 S 414-011
 (3)
Install the pulleys and control cable air seals (AMM 20-11-04/401).

 S 434-035

 (4)
Finish installation according to procedures given in Section E.

 D. Install Nonprefabricated Cable
 NOTE: You may wish to replace zinc-only coated cables with tin-over-zinc
　
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