(2)  
Access Panels 415 and 416 Thrust Reverser Halves - Engine No. 1 425 and 426 Thrust Reverser Halves - Engine No. 2 435 and 436 Thrust Reverser Halves - Engine No. 3 445 and 446 Thrust Reverser Halves - Engine No. 4

 D.  
Procedure

 (1)
Open the fan cowl panels (AMM 71-11-04/201).

 S 014-019-N00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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
AA NOTE: QEC EQUIPMENT NOT
SHOWN FOR CLARITY. STARTER PAD SEE B
MAIN GEARBOX (REAR VIEW)
A
WASHER
NUT
STARTING DRIVE
COUPLING

SEE C
A-A
L-A0539
Starter Drive Coupling Installation Figure 401 (Sheet 1)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.

Starter Drive Coupling Installation
Figure 401 (Sheet 2)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 044-020-N00
 WARNING: DO THE THRUST REVERSER DEACTIVATION PROCEDURE TO PREVENT THE
_______ OPERATION OF THE THRUST REVERSERS. THE ACCIDENTAL OPERATION OF THE THRUST REVERSERS CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
 (2)  
Do this procedure: Thrust Reverser Deactivation of Ground Maintenance (AMM 78-31-00/201).

 S 014-021-N00

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

 S 014-022-N00
 WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU OPEN THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, YOU CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
 (4)  
Open the thrust reversers (AMM 78-31-00/201).

 S 014-026-N00

 (5)  
Remove the starter (AMM 80-11-01/401).

 S 024-023-N00

 (6)  
Do the steps that follow to remove the starter drive coupling (Fig. 401):

 (a)  
Put the splined drive of the PWA 26377 holder in the coupling. 1) Attach the holder to the engine gearbox with the two bolts.

 (b)  
Put the wrench through the hole in the holder and remove the nut that holds the coupling.

 (c)  
Remove the holder from the engine gearbox.

 (d)  
Put the PWA 85502 puller in the rear inner diameter of the coupling, behind the splines.

 (e)  
Pull on the handle of the puller to remove the coupling.

 (f)  
Remove the coupling from the puller.

 (g)  
Remove the washer from the inner diameter of the coupling.

 (h)  
Install the dust cap on the gearbox.

 TASK 72-61-09-404-010-N00
 3. Install the Starter Drive Coupling
__________________________________
 A. Special Tools and Equipment
 (1)  
PWA 26377 - Holder, Pratt & Whitney, Commercial Products Division, 400 Main Street, East Hartford, CT 06108

 B.
Consumable Materials

 (1)  
D00390 Oil - Engine

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