S 014-044-N00
 (2)  Open the right fan cowl panel (AMM 71-11-04/201).
 S 044-045-N00
 WARNING: DO THE DEACTIVATION PROCEDURE TO PREVENT THE OPERATION OF THE
_______ THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
 (3)  
Do the deactivation procedure for the thrust reverser for ground maintenance (AMM 78-31-00/201).

 S 014-046-N00

 (4)  
Open the right core cowl panel (AMM 71-11-06/201).

 S 014-047-N00
 WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 TO OPEN THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
 (5)  
Open the right thrust reverser (AMM 78-31-00/201).

 S 014-048-N00

 (6)
Remove the No. 1 segment of the fan exit liner (AMM 72-34-03/401).

 D.
Procedure

 S 024-085-N00
 (1)  Remove the solenoid:
 (a)  
Disconnect the EEC electrical connectors from the solenoid. 1) Install protective caps to the EEC electrical connectors.

 (b)  
Disconnect the tube nuts of the supply tube and air signal tube from the solenoid.

 (c)  
Disconnect the tube nut of the pressure switch tube from the top of the solenoid.

 (d)  
Disconnect the tube nut of the pressure switch tube from the pressure switch.

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 75-24-15
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(e)  
Remove the pressure switch tube from the engine.

 (f)  
Remove the four bolts which attach the solenoid, pressure switch bracket and loop clamp bracket to the intermediate case.

 (g)  
Move the pressure switch and bracket assembly away from the work area.

 (h)  
Remove the solenoid from below the loop clamp bracket.

 S 024-086-N00
 (2)  
If it is necessary to replace the solenoid, do the steps that follow:

 (a)  
Remove the plug, the two adapters and the gaskets from the rear of the solenoid. 1) Discard the gaskets.

 (b)  
Remove the cap from the adapter on the top of the solenoid.

 (c)  
Remove the two adapters and the gaskets from the top of the solenoid. 1) Discard the gaskets.

 S 024-087-N00
 (3)  Install protection covers to the openings in the solenoid and all open tube ends.
 TASK 75-24-15-404-059-N00
 3.  Install the Turbine Vane and Blade Cooling Air Valve and IDG Air/Oil Heat_________________________________________________________________________ Exchanger Valve Override 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

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ENGINES WITH PHASE 3 CHANGES ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(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
　
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