S 024-015-N00

 (7)  
Disengage the splines on the end of the flex shafts from the actuators to remove the flex shaft and tubing.

 NOTE: Do not let the flex shaft come out of tubing.
____
 S 034-016-N00
 (8)  
Install the protection caps on the flex shaft ports on the actuators.

 S 024-017-N00

 (9)  
On a clean work bench, remove the flex shaft from the tubing.

 S 214-040-N00

 (10)
 Make sure the flex shafts and the inner surface of the tubing are clean.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
TASK 78-31-18-404-018-N00
 3. Install the Thrust Reverser Rotary Flex Shafts and Tubing
_________________________________________________________
 A. Consumable Materials
 (1)  
D00148 Fluid - Hydraulic Fire Resistant BMS 3-11

 B.
References

 (1)  
AMM 24-22-00/201, Manual Control

 (2)  
AMM 27-81-00/201, Leading Edge Flap System

 (3)  
AMM 29-11-00/201, Main Hydraulic System

 (4)  
AMM 71-11-04/201, Fan Cowl Panels

 (5)  
AMM 78-31-00/201, Thrust Reverser System

 (6)  
IPC 78-31-01 Fig. 10

 C.
Access

 (1)  
Location Zone 415 and 416 Engine 1 - Thrust Reverser Halves 425 and 426 Engine 2 - Thrust Reverser Halves 435 and 436 Engine 3 - Thrust Reverser Halves 445 and 446 Engine 4 - Thrust Reverser Halves

 (2)  
Access Panel
 413 Fan Cowl Panel, LH - Engine 1
 414 Fan Cowl Panel, RH - Engine 1
 423 Fan Cowl Panel, LH - Engine 2
 424 Fan Cowl Panel, RH - Engine 2
 433 Fan Cowl Panel, LH - Engine 3
 434 Fan Cowl Panel, RH - Engine 3
 443 Fan Cowl Panel, LH - Engine 4
 444 Fan Cowl Panel, RH - Engine 4

 D.
Prepare to Install the Rotary Flex Shafts and Tubing

 S 864-019-N00
 (1)  
Make sure the forward thrust levers is in the idle position and the DO-NOT-OPERATE tag is attached to it.

 S 864-041-N00

 (2)  
Make sure the reverse thrust lever is fully forward and the DO-NOT-OPERATE tag is attached to it.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(3)  S 144-020-N00Rub the flex shafts with a clean, lint-free cloth to remove the contamination.
 (4)  S 424-021-N00Put the flex shaft into the tubing.
 NOTE:____ Do not let the flex shafts come out of the tubing.
 (5)  S 434-022-N00Tighten the fasteners on the support block to hold up the retract and extend hydraulic lines.
 (6)  S 434-023-N00Make sure all hydraulic line and flexhose connections are tight.
 (7)  S 414-045-N00Stow the thrust reverser sleeve with hydraulic pressure.
 NOTE:____ With the sync lock removed, a small amount of hydraulic fluid will come out of the lower non-locking actuator.
 NOTE:____ There are two methods to stow the thrust reverser sleeve which retracts all three actuators. The first method uses airplane hydraulic pressure. The second method uses a ground service cart.
 (8)  S 864-024-N00Apply hydraulic pressure to fully retract all three hydraulic actuators and fully close the reverser sleeve on the applicable thrust reverser half. (a) When you use the airplane hydraulic power, do the steps that follow: 1) Make sure the reverse thrust levers are in the fully forward position with the DO-NOT-OPERATE tags installed on them.

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 78-31-18
　
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