(6)  
AMM 78-31-00/201, Thrust Reverser System

 D.  
Access

 (1)  
Location Zone
 412 Engine 1 - Intermediate Case Aft Face 1 o'clock
 422 Engine 2 - Intermediate Case Aft Face 1 o'clock
 432 Engine 3 - Intermediate Case Aft Face 1 o'clock
 442 Engine 4 - Intermediate Case Aft Face 1 o'clock

 (2)  
Access Panel
 416 Right Thrust Reverser Half - Engine 1
 426 Right Thrust Reverser Half - Engine 2
 436 Right Thrust Reverser Half - Engine 3
 446 Right Thrust Reverser Half - Engine 4

 E.  
Prepare to Install the Solenoid

 S 024-089-N00
 (1)  If it is necessary to install a new solenoid, do the steps that follow:
 (a)  
Remove the protective covers from the openings in the solenoid.

 (b)  
Lubricate the threads of the two adapters, which are installed on the top of the override solenoid, with engine oil.

 (c)  
Install the two adapters with the new gaskets to the threaded ports on the top of the solenoid. 1) Tighten the adapters to 65-75 pound-inches (7.3-8.5

 newton-meters).

 (d)  
Lubricate the threads of the cap with engine oil.

 (e)  
Install the cap to the adapter on the right of the solenoid.

 1)  Hold the adapter and tighten the cap to 90-100 pound-inches (10.2-11.3 newton-meters).

 (f)  
Lubricate the threads of the larger adapter with engine oil.

 (g)  
Install the larger adapter with a new gasket in the center port on the rear of the solenoid. 1) Tighten the larger adapter to 150-170 pound-inches

 (16.9-19.2 newton-meters).

 (h)  
Lubricate the threads of the smaller adapter with engine oil.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ENGINES WITH PHASE 3 CHANGES ú

 75-24-15
 ú ú N01 Page 405 ú Jun 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(i)  
Install the smaller adapter with a new gasket in the right port on the rear of the solenoid. 1) Tighten the smaller adapter to 110-120 pound-inches

 (12.4-13.6 newton-meters).

 (j)  
Lubricate the threads of the plug with engine oil.

 (k)  
Install the plug with a new gasket in the left port on the rear of the override solenoid. 1) Tighten the plug to 110-120 pound-inches (12.4-13.6

 newton-meters).
 F. Procedure
 S 424-088-N00
 (1)  
Install the solenoid:

 (a)  
Lubricate the threads of the four bolts, which attach the solenoid, with engine oil.

 (b)  
Put the solenoid in position below the loop clamp bracket on the intermediate case with the EEC electrical receptacles to the rear. 1) Align the bolt holes on the solenoid lugs with the bolt

 holes on the intermediate case.

 (c)  
Put the pressure switch and bracket assembly in position on the intermediate case. 1) Align the bolt holes of the bracket assembly with the bolt

 holes of the solenoid.

 (d)  
Attach the bracket assembly, the loop clamp bracket and the solenoid to the intermediate case with the four bolts. 1) Tighten the bolts to 85-95 pound-inches (9.6-10.7

 newton-meters).

 (e)  
Remove the protective covers from the open tube ends.

 (f)  
Lubricate the threads of the larger (center) adapter on the rear of the solenoid with the antigalling compound.

 (g)  
Connect the supply tube to the larger (center) adapter on the rear of the solenoid. 1) Hold the adapter and tighten the tube nut to 225-250

 pound-inches (25.4-28.2 newton-meters).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ENGINES WITH PHASE 3 CHANGES ú

 75-24-15
 ú ú N01 Page 406 ú Jun 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(h)  
Lubricate the threads of the smaller (lower) adapter on the rear of the solenoid with engine oil.
　
中國航空網 m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機維護手冊 大氣 AIR 2(12)