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

 D.
Procedure

 S 024-028-N00
 (1)  
Remove the cover from the opening on the IDG drive pad.

 S 434-010-N00

 (2)  
Lubricate a new preformed packing with engine oil.

 (a)  
Put the lubricated packing in the groove of the IDG oil seal.

 S 644-011-N00
 (3)  
Lubricate the mating (carbon) surface of the face seal with engine oil.

 S 424-012-N00

 (4)  
Install the IDG oil seal into the IDG pad, over the end of the gearshaft.

 NOTE: The IDG oil seal will be against the flange of the gear.
____
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(5)  S 434-013-N00Install the retaining ring in the groove in the gearbox housing to hold the IDG oil seal.
 (6)  S 414-014-N00Install the IDG (AMM 24-11-01/401).
 S 414-021-N00

 WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00 WHEN YOU CLOSE THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
 (7)
Close the thrust reversers (AMM 78-31-00/201).

 S 414-022-N00

 (8)
Close the core cowl panels (AMM 71-11-06/201).

 S 414-023-N00

 (9)
Close the fan cowl panels (AMM 71-11-04/201).

 S 444-024-N00

 (10)
 Do the activation procedure for the thrust reverser (AMM 78-31-00/201).

 S 794-016-N00

 (11)
 Do the test for the accessory drive seals that is shown in the Power Plant Test Reference Table (AMM 71-00-00/501).

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 ALL  ú ú N01 Page 406 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
EEC ALTERNATOR DRIVE OIL SEAL - REMOVAL/INSTALLATION
____________________________________________________
 1.  General
_______
 A.  The procedure that follows gives the steps for the removal and the installation of the electronic engine control (EEC) alternator drive oil seal. In this procedure, the EEC alternator drive oil seal will be referred to as the alternator oil seal.
 B.  The alternator oil seal is installed in the space in the EEC alternator drive pad on the main gearbox aft face at the 6 o'clock position.
 C.  You can open the thrust reverser halves and remove the EEC alternator to get access to the alternator oil seal.
 TASK 72-61-05-004-001-N00
 2.  Remove Electronic Engine Control (EEC) Alternator Drive Oil Seal (Fig. 401)
________________________________________________________________
 A.  Special Tools and Equipment
 (1)  
PWA 85723 - Puller, Pratt & Whitney, Commercial Products Division, 400 Main Street, East Hartford, CT 06108

 B.  
References

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

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

 (3)  
AMM 73-21-05/401, EEC Alternator

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

 (5)  
IPC 72-61-05 Fig. 1

 C.  
Access

 (1)  
Location Zone 412 Engine 1 - Main Gearbox Aft Face 6 o'clock 422 Engine 2 - Main Gearbox Aft Face 6 o'clock 432 Engine 3 - Main Gearbox Aft Face 6 o'clock 442 Engine 4 - Main Gearbox Aft Face 6 o'clock

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