NOTE: If necessary, loosen the bolt and nut which attach the
____ clamp for the accessory cooling tube to the bracket to get the clearance for the removal of the solenoid.
 (d)  Remove the solenoid from the engine.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ENGINES WITHOUT PHASE 3 CHANGES ú

 75-33-03
 ú ú N04 Page 403 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 024-043-N00
 (2)  
If it is necessary to replace the solenoid, do the steps that follow:

 (a)  
Remove the three adapters and gaskets from the solenoid.

 (b)  
Remove the two caps from the adapters on top of the solenoid.

 (c)  
Remove the adapters and gaskets from the top of the solenoid.

 S 024-044-N00
 (3)  Install protection covers to all open line ends and the openings in the solenoid.
 TASK 75-33-03-404-010-N00
 3.  Install the HPC Secondary Flow Control Valve and Turbine Vane and Blade_______________________________________________________________________ Cooling Air Valve Solenoid (Fig. 401)__________________________
 A.  Equipment
 (1)  M303, M305, or M307 Bergen Mechanical Crimper
 Bergen Cable Technologies Inc
 170 Gregg St

 P.O.
 Box 1300
 Lodi, NJ 07644-9982

 B.  
Consumable Materials

 (1)  
D00390 Oil - Engine

 (2)  
G00964 Compound - Antigalling, Fel-Pro C-200

 (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 75-33-04 Fig. 1

 D.  
Access

 (1)  
Location Zone 412 Engine 1 - Intermediate Case Aft Face 10 o'clock 422 Engine 2 - Intermediate Case Aft Face 10 o'clock 431 Engine 3 - Intermediate Case Aft Face 10 o'clock 442 Engine 4 - Intermediate Case Aft Face 10 o'clock

 (2)  
Access Panel
 415 Left Thrust Reverser Half - Engine 1
 425 Left Thrust Reverser Half - Engine 2
 435 Left Thrust Reverser Half - Engine 3
 445 Left Thrust Reverser Half - Engine 4

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ENGINES WITHOUT PHASE 3 CHANGES ú

 75-33-03
 ú ú N02 Page 404 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
E.  Prepare to Install the Solenoid
 S 424-046-N00
 (1)
Remove the protection covers from the openings in the solenoid.

 S 424-047-N00

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

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

 (b)  
Install the two adapters with the gaskets into the openings on the top of the solenoid. 1) Tighten the adapters to 65-75 pound-inches (7.3-8.5

 newton-meters).

 (c)  
Lubricate the threads of the caps with engine oil.

 (d)  
Install the caps to the adapters on the top of the solenoid. 1) Hold the adapters and tighten the caps to 90-100 pound-inches (10.2-11.3 newton-meters).

 2)  Safety the caps with lockwire or safety cable and safety cable ferrule.

 (e)  
Lubricate the threads of the three remaining adapters with engine oil.

 (f)  
Install the larger adapter with the gasket in the center of the solenoid.

 (g)  
Install the remaining two adapters with the gaskets in the outer ports.
　
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