(2)
AMM 78-31-00/201, Thrust Reverser System

 (3)
AIPC 24-11-01, Fig. 2

 B.  
Equipment

 (1)
TP328 - Screw Removal Tool or equivalent

 (2)
Rivet Gun - Commercially available

 C.  
Access

 (1)  
Location Zone 412 Engine 1 - Main Gearbox Aft Face 7 o'clock 422 Engine 2 - Main Gearbox Aft Face 7 o'clock 432 Engine 3 - Main Gearbox Aft Face 7 o'clock 442 Engine 4 - Main Gearbox Aft Face 7 o'clock

 (2)  
Access Panel
 415 Left Thrust Reverser Half - Engine 1
 425 Left Thrust Reverser Half - Engine 2
 435 Left Thrust Reverser Half - Engine 3
 445 Left Thrust Reverser Half - Engine 4

 D.  
Procedure

 (1)
Remove the IDG (AMM 24-11-01/401).

 S 034-004

 (2)
Remove the eight bolts that attach the QAD ring to the gearbox.

 (a)
Tap the hex screws with a hammer and drift.

 S 014-002
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 24-11-08
 ALL  ú ú 02 Page 401 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

SEE A
MAIN GEARBOX SEE B
A

IDG Quick Attach-Detach (QAD) Ring Installation
Figure 401 (Sheet 1)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 24-11-08
 ALL  ú ú 01 Page 402 ú Oct 10/88
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

IDG Quick Attach-Detach (QAD) Ring Installation
Figure 401 (Sheet 2)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 24-11-08
 ALL  ú ú 02 Page 403 ú Feb 10/89
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

QAD Ring Attachment Bolt Torque Sequence
Figure 402

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 24-11-08
 ALL  ú ú 02 Page 404 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
K26529
A
747-400
MAINTENANCE MANUAL

A

RIVET GUN

QAD Adapter Screws - Removal Methods
Figure 403

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 24-11-08
 ALL  ú ú 01 Page 405 ú Oct 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
K26651
A
747-400 MAINTENANCE MANUAL
 (b)  
Make sure the screw hex hole is clean.

 CAUTION:_______USE A STUBBY 3/8 INCH DRIVE HEX DRIVER. THE STANDARD OR LONG HEX DRIVER WILL CAUSE THE DRIVER TO CAM OUT. THIS COULD CAUSE DAMAGE TO THE QAD RING SCREWS.

 (c)  
Tap the hex driver in the screw to seat the driver.

 CAUTION: APPLY THE FORCE SLOW AND EVEN AND PERPENDICULAR TO THE
_______ SCREW. JERKING OR APPLYING FORCE THAT IS NOT PERPENDICULAR TO THE SCREW WILL CAUSE THE HEX DRIVER TO CAM OUT OF THE SCREW AND DAMAGE THE SCREW.
 CAUTION: USE A 1/2 INCH TO 3/8 INCH ADAPTER BETWEEM THE STUBBY HEX
_______ DRIVER AND THE 1/2 INCH DRIVE RACHET OR BREAKER BAR. THIS COMBINATION OF TOOLS WILL NOT CAUSE THE HEX DRIVER TO CAM OUT OF THE SCREW.
 (d)  Apply torque to remove the screw.
 S 024-023
 (3)  If the QAD attachment screws are tight or damaged, do these steps to remove the screws (Fig. 403).
　
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 ELECTRICAL POWER 電源 1(46)