(e)  
Install the seal halves on the top end of the tube.

 (f)  
Make sure the lugs on the seal halves are correctly installed in the rectangular holes in the tube.

 S 434-016
 (3)  
Apply pressure on the seal halves to set them on the tube.

 S 434-017

 (4)  
Do this task to attach the shrink sleeve on the seal halves: "Heat Gun, Soldering Guns and/or Soldering Irons" (AMM 20-11-25/201).

 (5)  
Cut the shrink sleeve to the outer end of the seal halves.

 (6)  
Set the seal in the hole of the pressure deck.

 S 034-068
 S 424-081
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-00-02
 ALL  ú ú 01 Page 404 ú Feb 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 434-082
 (7)
Set the top and bottom seal plate and seal cover in their positions.

 S 434-083

 (8)
Install the fasteners but do not tighten.

 S 864-020

 (9)
Do this task to pressurize hydraulic systems No. 1 and 4, or 2 and

 3: "Hydraulic System Pressurization" (AMM 29-11-00/201).
 S 434-021
 (10)
 Make sure you can easily install the rig pin A/S-2.

 S 824-022

 (11)
 Do this task to connect and adjust the tension of the control cables: "Aileron and Aileron Trim Control System Adjustment" (AMM 27-11-00/501).

 S 824-023

 (12)
 Adjust the lower ends of the tube assemblies until the cables are at the center in the holes.

 S 434-077

 (13)
 Tighten the seal plate fasteners.

 S 834-024

 (14)
 With hydraulic power applied, do this task to make sure the loads of the aileron control wheel and travels are not out of tolerance: "Aileron and Aileron Trim Control System Adjustment" (AMM 27-11-00/501).

 S 414-025

 (15)
 Do this task: "Floor Panel Installation" (AMM 53-21-02/401).

 TASK 27-00-02-004-086
 4.  Speed Brake Raised Control Cable Air Pressure Seal Removal__________________________________________________________
 A. Special Tools and Equipment
 (1)
G12001-50 Rig Pin Kit

 B.
References

 (1)
AMM 27-62-00/501, Speed Brake Control System

 (2)
AMM 29-11-00/201, Main Hydraulic Supply System

 (3)
AMM 53-21-02/401, Main and Upper Deck Floor

 C.
Access

 (1)  
Location Zone
 241 Passenger Cabin, Left Side
 242 Passenger Cabin, Right Side
 730 Wing Landing Gear - Left and Doors
 740 Wing Landing Gear - Right and Doors

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-00-02
 ALL  ú ú 01 Page 405 ú Feb 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 D. Prepare for Removal
 S 864-044
 (1)  
Do this task to remove pressure from hydraulic system No. 4: "Hydraulic System Depressurization" (AMM 29-11-00/201).

 S 864-045

 (2)
Set the control lever for the speed brake to the FLIGHT position.

 S 834-046

 (3)  
Do this task to install rig pins SB-1 and SB-2: "Adjust the speed brake cables SBA and SBB (AMM 27-62-00/501).

 S 014-047

 (4)  
Get access to cables SBA and SBB.

 (a)  
Do this task to get access above the seals: "Floor Panel Removal" (AMM 53-21-02/401).

 NOTE: The floor panels you remove are above the ceiling of the
____ wheel well for the wing landing gear. It is approximately 6 feet to the left of the keel beam and aft of Sta 1246.
 (b)
Get access below the seal from the wing gear wheel well.

 E.
Remove the Speed Brake Raised Control Cable Air Pressure Seal

 S 034-049
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機維護手冊 飛行操縱 FLIGHT CONTROLS 1(25)