78-31-05

 UNITS  ú
 ú  N01  Page 407
 ú  Oct 10/95 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
THRUST REVERSER COWL OPENING ACTUATOR FLEX HOSES -
__________________________________________________ REMOVAL/INSTALLATION
____________________
 TASK 78-31-08-004-001-N00
 1.  Remove the Thrust Reverser Cowl Opening Actuator Flex Hoses (Fig. 401)___________________________________________________________
 A. Equipment
 (1)
Hand Pump - C78005

 B.
References

 (1)
AMM 71-11-04/201, Fan Cowl Panels

 (2)
AMM 71-11-06/201, Core Cowl Panels

 (3)
AMM 78-31-00/201, Thrust Reverser System

 (4)
AIPC 78-31-06, Fig. 5

 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 and 414 Fan Cowl Panels - Engine 1 417 and 418 Core Cowl Panels - Engine 1 423 and 424 Fan Cowl Panels - Engine 2 427 and 428 Core Cowl Panels - Engine 2 433 and 434 Fan Cowl Panels - Engine 3 437 and 438 Core Cowl Panels - Engine 3 443 and 444 Fan Cowl Panels - Engine 4 447 and 448 Core Cowl Panels - Engine 4 451A No. 2 Forward Fairing - Engine 1 461A No. 2 Forward Fairing - Engine 2 471A No. 2 Forward Fairing - Engine 3 481A No. 2 Forward Fairing - Engine 4

 D.
Prepare to Remove the Flex Hoses

 (1)
Remove the forward strut fairings (AMM 54-62-04/401).

 S 014-032-N00
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 78-31-08
 ALL  ú ú N01 Page 401 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 044-033-N00
 WARNING: DO THE DEACTIVATION PROCEDURE TO PREVENT THE OPERATION OF THE
_______
 THRUST REVERSER. ACCIDENTAL OPERATION OF THE THRUST REVERSER
 CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.

 (2)  
Do the deactivation procedure for the thrust reverser for ground
 maintenance (AMM 78-31-00/201).

 S 014-049-N00

 (3)  
Open the fan cowl panels (AMM 71-11-04/201).

 S 014-034-N00

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

 S 014-035-N00
 WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO OPEN THE THRUST
_______
 REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURY TO
 PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.

 (5)  Open the thrust reverser (sling method) (AMM 78-31-00/201).
 (a)  Make sure the hold-open rod and the sling equipment will hold the thrust reverser open.
 S 684-047-N00
 CAUTION: BE PREPARED TO CATCH THE ENGINE OIL IN THE APPLICABLE
_______ CONTAINER. IMMEDIATELY CLEAN THE ENGINE IF ENGINE OIL FALLS ON THE ENGINE. IF YOU DO NOT QUICKLY CLEAN THE ENIGNE OIL OFF THE ENGINE, THE ENGINE OIL CAN CAUSE DAMAGE TO THE ENGINE.
 (6)  
Put a container in the correct position to catch all leakage of
 fluid from the opening system.

 E.  
Remove the Flex Hose

 S 024-045-N00
 (1)  Do these steps to remove the flex hoses:
 (a)  
Disconnect the flex hose from the actuator.

 1)  Immediately put protective caps on the actuator and on the flex hoses.

 (b)
Disconnect the flex hose from the union on the strut fitting.

 1)  Immediately put caps on the flex hose and the union on the strut.

 (c)  
Remove the clamps which attach the hose to the strut structure.

 (d)  
Remove the flex hose.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 78-31-08
 ALL  ú ú N01 Page 402 ú Oct 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
　
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