S 414-024-N00

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

 S 444-023-N00

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

 S 794-018-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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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
STARTER DRIVE OIL SEAL - REMOVAL/INSTALLATION
_____________________________________________
 1.  General
_______
 A.  The procedure that follows gives the steps for the removal and the installation of the starter drive oil seal. In this procedure the starter drive oil seal will be referred to as the oil seal.
 B.  The oil seal is installed in the space for the starter drive pad on the main gearbox aft face at the 5 o'clock position.
 C.  You can open the thrust reverser halves and remove the starter to get access to the oil seal.
 TASK 72-61-03-004-001-N00
 2.  Remove Starter 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 78-31-00/201, Thrust Reverser System

 (4)
AMM 80-11-01/401, Starter

 (5)
IPC 72-61-03 Fig. 1

 C.  
Access

 (1)  
Location Zone 412 Engine 1 - Main Gearbox Aft Face 5 o'clock 422 Engine 2 - Main Gearbox Aft Face 5 o'clock 432 Engine 3 - Main Gearbox Aft Face 5 o'clock 442 Engine 4 - Main Gearbox Aft Face 5 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

 D.  
Procedure

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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
____QEC EQUIPMENT NOT
NOTE: SHOWN FOR CLARITY.
STARTER PAD SEE B
MAIN GEARBOX (REAR VIEW)
A
STARTER DRIVE
BEARING HOUSING

RETAINING PACKING
RING
STARTER DRIVE OIL SEAL
A-A
L-A0539
Starter Drive Oil Seal Installation
Figure 401 (Sheet 1)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
S 044-018-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).

 S 014-019-N00

 (2)  
Open the fan cowl panel (AMM 71-11-04/201). S 014-020-N00

 (3)  
Open the core cowl panel (AMM 71-11-06/201).

 S 014-025-N00 WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00 WHEN YOU OPEN THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
 (4)  Open the thrust reversers (AMM 78-31-00/201).
PACKING GROOVE
PULLER GROOVE
RETAINING SEAL
　
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