72-61-07
 ALL  ú ú N01 Page 401 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE A
A  A 
NOTE:____  QEC EQUIPMENT NOT SHOWN FOR CLARITY. HYDRAULIC PUMP PAD SEE B 
A MAIN GEARBOX (REAR VIEW) 
PACKING 

HYDRAULIC PUMP DRIVE HYDRAULIC PUMP RETAINING RING DRIVE OIL SEAL
BEARING HOUSING  L-A0141
A-A
Hydraulic Pump Drive Oil Seal Installation Figure 401 (Sheet 1)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 72-61-07
 ALL  ú ú N01 Page 402 ú Oct 10/88
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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 REVERSERS. THE ACCIDENTAL OPERATION OF THE THRUST REVERSERS CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
 (2)  
Do this procedure: Thrust Reverser Deactivation for Ground
 Maintenance (AMM 78-31-00/201).

 S 014-028-N00

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

 S 014-019-N00 WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00 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 right thrust reverser (AMM 78-31-00/201).
 S 024-020-N00

 (5)  
Do the steps that follow to remove the EDP oil seal (Fig. 401):

PACKING GROOVE
PULLER
GROOVE

SEALRETAINING RING
B
CARBON
DETAIL

B
MAIN
B-B
GEARBOX
HYDRAULIC
PUMP PAD
FWD

B PULLER PACKING
PULLER RING
L-A3548 Hydraulic Pump Drive Oil Seal Installation Figure 401 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 72-61-07
 ALL  ú ú N01 Page 403 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
CAUTION: IMMEDIATELY REMOVE ALL OF THE HYDRAULIC FLUID THAT FALLS
_______ ON THE ENGINE GEARBOX. HYDRAULIC FLUID CAN CAUSE DAMAGE TO THE ENGINE GEARBOX.
 (a)  
Remove the EDP (AMM 29-11-05/401).

 (b)  
Remove the retaining ring that keeps the EDP oil seal in the correct position.

 (c)  
Install PWA 85204 or PWA 88110 puller. 1) Put the jaws of the PWA 85204 puller in the puller groove on the seal assembly.

 2)  Move the puller ring until the jaws are tightly engaged in the puller groove.

 (d)  
With a slide hammer movement of the puller, remove the EDP oil seal.

 NOTE: This slide hammer movement will make a force that is
____ stronger than the force of the packing.
 (e)  
Remove the puller from the EDP oil seal. 1) Discard the packing.

 (f)  
Install a dust cap on the engine gearbox opening.

 TASK 72-61-07-404-008-N00
 3.  Install the Hydraulic Pump Drive Oil Seal
_________________________________________
 A.  Consumable Materials
 (1)  
D00390 Oil - Engine

 B.  
References

 (1)  
AMM 29-11-05/401, Engine-Driven Pump

 (2)  
AMM 71-00-00/501, Power Plant

 (3)  
AMM 71-11-04/201, Fan Cowl Panels

 (4)  
AMM 71-11-06/201, Core Cowl Panels

 (5)  
AMM 78-31-00/201, Thrust Reverser System

 (6)  
IPC 72-61-07 Fig. 1

 C.  
Access

 (1)  
Location Zone
 412 Engine No. 1
 422 Engine No. 2
 432 Engine No. 3
 442 Engine No. 4

 (2)  
Access Panel 416 Right Thrust Reverser Half - Engine No. 1 426 Right Thrust Reverser Half - Engine No. 2 436 Right Thrust Reverser Half - Engine No. 3 446 Right Thrust Reverser Half - Engine No. 4
　
中國航空網 m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機維護手冊 發動機 ENGINE 2(138)