747-400 AMM 飞机维护手册 动力装置 POWER PLANT 1(118)

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 latch.
 NOTE: Make sure the pins on the attachment block
____ engage the pin holes on the core cowl panel.
 b) Close the core cowl latch. 3) Put the aft tube into the thrust reverser tube. 4) Turn the aft tube to install the other end of the tube on
 the attachment block. 5) Put the lockpin into the pin hole on the thrust reverser
 tube. 6) Put the pin into the aft tube and the attachment block. 7) Install the hold-open rods on the core cowl panel to the
 stow bracket on the core cowl panel.
 S 494-021-N00
 (21)
 Put the hold-open rods for the fan cowl, if it is applicable, and thrust reverser in the stowed position.

 S 434-028-N00

 (22)
 Install the protection covers on the 2.9 bleed valves to prevent unwanted objects during the power plant removal.

 S 864-058-N00
 WARNING: YOU MUST KEEP THE ELECTRICAL POWER OFF WHEN YOU DISCONNECT OR
_______ CONNECT THE FUEL, HYDRAULIC, AND ELECTRICAL LINES. IF THE ELECTRICAL POWER IS OFF, IT WILL PREVENT THE ACCIDENTAL OPERATION OF THE FLUIDS WITH PRESSURE, ELECTRICAL CIRCUITS WHICH ARE ENERGIZED, OR FIRE. IF THE ELECTRICAL POWER IS NOT OFF, INJURY TO PERSONS CAN OCCUR.
 (23)
 If supplied, remove electrical power (AMM 24-22-00/201).

 S 034-025-N00

 (24)
 Disconnect the power feeder cable (2) for the IDG with the steps that follow (Fig. 405):

 (a)  
Disconnect the hinged clamps at the 11 locations along the
 power feeder cable (2).

 (b)  
Remove the screws (6) and washers (7) which attach the terminal block cover (5) to the IDG.

 (c)  
Remove the terminal block cover (5).

 (d)  
Remove the nuts (4) and washers (3) which attach the phase
 leads of the power feeder cable (2) to the terminal studs on
 the IDG.

 (e)  
Remove the phase leads from the terminal studs.

 

 1)  Make a mark on each phase lead for the correct
 installation.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
2. IDG POWER 
FEEDER CABLE 
ELECTRICAL 
RACEWAY 
SEE  A 
CLAMP 
(5 LOCATIONS) 
FWD 
SEE  B 

A

IDG Power Feeder Cable Installation
Figure 405 (Sheet 1)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
SEE A
IDG 
FWD  SEE  C 
(6 LOCATIONS) CLAMP 
FEEDER CABLE 2. IDG POWER  B  IDG 
(4 LOCATIONS) PHASE LEAD 
(2 LOCATIONS) 7. WASHER (2 LOCATIONS) BLOCK SCREW 6. TERMINAL 
C (4 LOCATIONS) (4 LOCATIONS) BLOCK COVER 5. TERMINAL 4. TERMINAL NUT 3. WASHER 
Figure 405 (Sheet 2) IDG Power Feeder Cable Installation 

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE D
THRUST REVERSER
HYDRAULIC TUBE SUPPORT BRACKET
SUPPORT HOOK
IDG POWER FEEDER CABLE
D
IDG Power Feeder Cable Installation Figure 405 (Sheet 3)
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