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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
S 414-025-N00
 (9)
Close the core cowl panels (AMM 71-11-06/201).

 S 414-026-N00

 (10)
 Close the fan cowl panels (AMM 71-11-04/201).

 S 444-027-N00

 (11)
 Do the activation procedure for the thrust reverser (AMM 78-31-00/201).

 S 794-019-N00

 (12)
 Do the test for the accessory drive seal that is shown in the Power Plant Test Reference Table (AMM 71-00-00/501).

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
FUEL PUMP DRIVE OIL SEAL - REMOVAL/INSTALLATION
_______________________________________________
 1.  General
_______
 A.  This procedure gives the steps for the removal and the installation of the fuel pump drive oil seal. In this procedure, the fuel pump drive oil seal will be referred to as the seal.
 B.  The seal is in an empty space in the fuel pump pad on the forward face of the main gearbox at the 4 o'clock position.
 C.  You can open the right thrust reverser half, and remove the fuel pump and the fuel metering unit to get access to the seal.
 TASK 72-61-06-004-001-N00
 2.  Remove the Fuel Pump Drive Oil Seal (Fig. 401)
___________________________________
 A.  Special Tools and Equipment
 (1)  
Puller - PWA 85204 (optional to PWA 88110), Pratt & Whitney, Commercial Products Division, 400 Main Street, East Hartford, CT 06108

 (2)  
Puller - PWA 88110

 B.  
References

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

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

 (3)  
AMM 73-11-01/401, Fuel Pump

 (4)  
AMM 78-31-00/201, Thrust Reverser System

 (5)  
IPC 72-61-06 Fig. 1

 C.  
Access

 (1)  
Location Zone 412 Engine 1 - Main Gearbox Fwd Face 4 o'clock 422 Engine 2 - Main Gearbox Fwd Face 4 o'clock 432 Engine 3 - Main Gearbox Fwd Face 4 o'clock 442 Engine 4 - Main Gearbox Fwd Face 4 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

 D.  
Prepare for the Removal.

 S 044-025-N00
 WARNING: DO THE THRUST REVERSER 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.
 (1)  Do this procedure: Thrust Reverser Deactivation for Ground Maintenance (AMM 78-31-00/201).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE A
A  A 
FUEL PUMP PAD BSEE  A (FRONT VIEW) MAIN GEARBOX  SHOWN FOR CLARITY. NOTE: QEC EQUIPMENT NOT____ 
PACKING 

SEAL DRIVE OIL FUEL PUMP  RING RETAINING  FUEL PUMP DRIVE BEARING HOUSING 
A-A  L-A0137 
Fuel Pump Drive Oil Seal Installation Figure 401 (Sheet 1) 

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 72-61-06
 ALL  ú ú N01 Page 402 ú Oct 10/88
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(2)  S 014-026-N00Open the right fan cowl panel (AMM 71-11-04/201).
 (3)  S 014-027-N00Open the right core cowl panel (AMM 71-11-06/201).
　
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