(2)  
Access Panels
 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 864-085-N00
 (1)  
For the applicable engine, open these circuit breakers and install
 the DO-NOT-CLOSE tags:

 (a)  
P6 Main Power Distribution Panel
 1) 6G15 SCU ALT PWR ENG 1
 2) 6G23 ENG SCU 1
 3) 6G16 SCU ALT PWR ENG 2
 4) 6G24 ENG SCU 2
 5) 6G17 SCU ALT PWR ENG 3
 6) 6G25 ENG SCU 3
 7) 6G18 SCU ALT PWR ENG 4
 8) 6G26 ENG SCU 4

 (2)  
Open the right fan cowl panel (AMM 71-11-04/201).

 S 014-084-N00
 S 044-083-N00
 WARNING: DO THE THRUST REVERSER DEACTIVATION PROCEDURE TO PREVENT THE
_______
 OPERATION OF THE THRUST REVERSER. THE ACCIDENTAL OPERATION OF
 THE THRUST REVERSER CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO
 EQUIPMENT.

 (3)  Do this procedure: Thrust Deactivation for Ground Maintenance
 (AMM 78-31-00/201).

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S 014-082-N00
 (4)  Open the right core cowl panel (AMM 71-11-06/201).
 S 014-081-N00
 WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU OPEN THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
 (5)  Open the right thrust reverser (AMM 78-31-00/201).
 S 024-097-N00
 CAUTION: DO NOT TWIST OR BEND THE WIRE HARNESS MORE THAN NECESSARY
_______ DURING THE REMOVAL OF THE WIRE HARNESS. IF THE WIRE HARNESS IS TWISTED OR BENT, YOU CAN CAUSE DAMAGE TO THE WIRE HARNESS.
 (6)  
Disconnect the W4J25 connector from the W1P25 connector as follows:

 (a)  
Find the W4J25 connector at the 1 o'clock position on the High Pressure Compressor (HPC) case.

 (b)  
Disconnect the W4J25 connector from the W1P25 connector.

 (c)  
Remove the bolts and nuts that attach the W4J25 connector to
 the bracket on the HPC case.

 (d)  
Remove the W4J25 connector from the bracket.

 (e)  
Install protective covers on the electrical connector.

 S 024-095-N00
 (7)  
Disconnect the W4P16 connector attached to the air valve actuator for the Turbine Case Cooling (TCC) as follows:

 (a)  
Find the W4P16 connector attached to the air valve actuator for the TCC.

 (b)  
Disconnect the W4P16 connector from the air valve actuator for the TCC.

 (c)  
Install protective covers on the electrical connector.

 S 024-094-N00
 (8)  
Disconnect the W4P3 connector from the actuator for the variable stator vanes as follows:

 (a)  
Find the W4P3 connector at the actuator for the variable stator vanes.

 (b)  
Disconnect the W4P3 connector from the actuator for the
 variable stator vanes.

 (c)  
Install protective covers on the electrical connectors.

 S 024-093-N00
 (9)  
ENGINES WITHOUT SCU'S; Disconnect the W4P19 connector from the EEC speed transducer (N1):

 (a)  
Find the W4P19 connector at the EEC speed transducer (N1) on
 the intermediate case at the 4:30 o'clock position.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
　
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本文鏈接地址：747-400 AMM 飛機維護手冊 發動機燃油和控制 2(46)