75-33-04
 ú ú N01 Page 404 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(3)  
G02334 Lockwire - AS3214-02

 (4)  
G02332 Ferrule - P05-292 (Optional)

 (5)  
G02335 Cable - Safety - P05-291 (Optional)

 C.
References

 (1)  
AMM 70-24-05/201, Electrical Harnesses

 (2)  
AMM 71-00-00/501, Power Plant

 (3)  
AMM 71-11-04/201, Fan Cowl Panels

 (4)  
AMM 71-11-06/201, Core Cowl Panels

 (5)  
AMM 72-34-03/401, Fan Exit Liner Segment

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

 (7)  
IPC 75-33-03 Fig. 1

 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 Override Solenoid

 S 424-047-N00
 (1)  
Remove the protection covers from the openings in the override solenoid.

 S 424-050-N00

 (2)  
If it is necessary to install a new override solenoid, do the steps that follow:

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

 (b)  
Install new gaskets to the two adapters.

 (c)  
Install the two adapters to the threaded ports on the top of the override 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.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ENGINES WITHOUT PHASE 3 CHANGES ú

 75-33-04
 ú ú N02 Page 405 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(e)  
Install the cap to the right adapter on the top of the override 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 a new gasket on the larger adapter.

 (h)  
Install the larger adapter in the center port on the rear of the override solenoid. 1) Tighten the larger adapter to 150-170 pound-inches

 (16.9-19.2 newton-meters).

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

 (j)  
Install a new gasket to the smaller adapter.

 (k)  
Install the smaller adapter in the right port on the rear of the override solenoid. 1) Tighten the smaller adapter to 110-120 pound-inches

 (12.4-13.6 newton-meters).

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

 (m)  
Install a new gasket to the plug.

 (n)  
Install the plug 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 424-048-N00
 (1)  
Install the override solenoid:

 (a)  
Put the override solenoid in position below the loop clamp bracket on the intermediate case with the EEC electrical connectors to the rear.

 NOTE: Make sure the aft lugs of the override solenoid are to
____ the rear of the lugs on the intermediate case.
 (b)  
Put the bracket with the override pressure switch in position.

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

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ENGINES WITHOUT PHASE 3 CHANGES ú
　
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 大氣 AIR 2(106)