(2)  
Access Panel
 416 Right Thrust Reverser Half - Engine 1
 426 Right Thrust Reverser Half - Engine 2
 436 Right Thrust Reverser Half - Engine 3
 446 Right Thrust Reverser Half - Engine 4

 D.
Procedure

 S 434-011
 (1)  
Remove the caps on the electrical connector and the tube.

 S 424-019

 (2)  
Install the pressure switch.

 (a)  
Put the switch in its position on the bracket, with the electrical connector aft.

 (b)  
Lubricate the threads of the two bolts (that attach the pressure switch to the bracket) with engine oil.

 (c)  
Install the bolts.

 (d)  
Tighten the bolts to 36-40 pound-inches (4.0-4.5 N.m).

 S 434-020
 (3)  
Connect the tube to the pressure switch.

 (a)  
Lubricate the adapter threads on the tube coupling nut with antigalling compound.

 (b)  
Connect the coupling nut on the tube to the pressure switch.

 (c)  
Tighten the coupling nut to 65-75 pound-inches (4.0-4.5 N.m).

 (d)  
Install lockwire on the coupling nut.

 S 434-015
 (4)  
Connect the electrical connector DS1611 to the switch.

 (5)
Install the No. 1 fan-exit liner segment (Ref 72-34-03/401).

 (6)  
Close the right thrust reverser half (Ref 78-31-00/201).

 S 414-016
 S 414-017
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 24-11-16
 ALL  ú ú 01P Page 405 ú Oct 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 IDG TERMINAL BLOCK ASSEMBLY - REMOVAL/INSTALLATION
__________________________________________________
 1.  General
_______
 A.  This procedure contains these tasks:
 (1)  
The removal of the terminal block assembly from the integrated drive generator (IDG).

 (2)  
The installation of the terminal block assembly on the integrated drive generator (IDG).

 B.  
Use this procedure to replace the terminal block cover, screws, washers, nuts, and terminal block.

 TASK 24-11-20-004-001
 2.  Removal of the IDG Terminal Block Assembly (Fig. 401)
__________________________________________
 A.  References
 (1)  
AMM 71-00-00/501, Power Plant

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

 (3)  
AIPC 24-11-01, Fig. 2

 (4)  
WDM 24-11-11, WDM 24-11-12, WDM 24-11-13, WDM 24-11-14

 (5)  
SSM 24-11-01, SSM 24-11-02, SSM 24-11-03, SSM 24-11-04

 B.  
Access

 (1)  
Location Zones 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 Panels
 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

 C.  
Procedure

 S 014-052
 WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO OPEN THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
 (1)  
Open the left thrust reverser (AMM 78-31-00/201).

 (2)  
Remove the screws, washers, and terminal block cover.

 S 034-012
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 24-11-20
 ALL  ú ú 02 Page 401 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

747-400
MAINTENANCE MANUAL

FWD SEE A
TERMINAL
FANNING BLOCK
STRIP
WASHER
(2 LOCATIONS)

SCREW (2 LOCATIONS)
SEE B
TERMINAL
TERMINAL BLOCK SCREW
BLOCK COVER
　
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