(g)  
Remove the four bolts which attach the hinged clamps on the actuator mount rails to the HPC case bracket.

 (h)  
Lift the actuator until it is free from the bracket pins and stop.

 (i)  
Disengage the forward end of the control cable from the actuator shaft.

 (j)  
Remove the actuator from the engine.

 S 024-057-N00
 (2)  If it is necessary to replace the actuator, do the steps that follow:
 (a)  
Remove the drain tube adapter (smallest of the three) and the packing from the actuator. 1) Discard the packing.

 (b)  
Remove the hinged clamps from the actuator mount rails.

 S 024-058-N00
 (3)  Install protection caps to all open line ends and the openings in the actuator.
 TASK 75-24-05-404-017-N00
 3. Install the Turbine Case Cooling Air Valve Actuator (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

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 75-24-05
 ALL  ú ú N02 Page 405 ú Oct 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
B. Consumable Materials
 (1)  
D00390 Oil - Engine

 (2)  
G02334 Lockwire - AS3214-02

 (3)  
G02332 Ferrule - P05-292 (Optional)

 (4)  
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 75-24-00/501, Turbine Cooling System

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

 (7)  
IPC 75-24-05 Fig. 1

 D.
Access

 (1)  
Location Zone
 412 Engine 1 - HPC Fwd Case 2 o'clock
 422 Engine 2 - HPC Fwd Case 2 o'clock
 432 Engine 3 - HPC Fwd Case 2 o'clock
 442 Engine 4 - HPC Fwd Case 2 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.
Procedure

 S 424-059-N00
 (1)
Remove the protection caps from the openings in the actuator.

 S 214-061-N00

 (2)
Make sure the actuator can move freely on its mount rails.

 S 424-060-N00

 (3)  
If it is necessary to install a new actuator, do the steps that follow:

 (a)  
Lubricate the new packing for the drain tube adapter with engine oil.

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 ALL  ú ú N02 Page 406 ú Oct 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(b)  
Install the new packing to the drain tube adapter.

 (c)  
Install the drain tube adapter to the port in the actuator. 1) Tighten the drain tube adapter to 90-100 pound-inches (10.2-11.3 newton-meters).

 2)  Safety the drain tube adapter with lockwire or safety cable and safety cable ferrule.

 (d)  
Install the two hinged clamps to each mount rail on the actuator. 1) Install lockwire to hold the hinged clamps in the closed

 position.
 S 424-062-N00
 (4)  Install the actuator:
 (a)  
Lubricate the threads of the attaching bolts of the actuator with engine oil.

 (b)  
Hold the actuator in position above the HPC case bracket.

 (c)  
Engage the inner section of the control cable with the actuator shaft.
　
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