TASK 76-11-03-862-021-N00
 10. Remove the Electrical Power from the Reverse Thrust Lever Interlock Actuators_____________________________________________________________________________ (Fig. 201)
 A. General
 (1)  
This task removes the electrical power from the interlock actuator for the reverse thrust lever.

 (2)  
You must do this task before the removal or installation of the interlock actuator for the reverse thrust lever.

 (3)  
You must do this task before you do the maintenance on the autothrottle servomotor and brake assembly, the speed brake lever assembly, and the flap lever assembly. Do this task to prevent the accidental operation of the reverse thrust lever which can cause injury to persons or damage to equipment.

 B.
Access

 (1)  
Location Zone
 221 Control Cabin, LH
 222 Control Cabin, RH

 C.
Procedure

 S 862-022-N00
 WARNING: DO THE DEACTIVATION PROCEDURE FOR THE INTERLOCK ACTUATORS OF
_______ THE REVERSE THRUST LEVER. THE INTERLOCK ACTUATORS OPERATE IN LESS THAN ONE SECOND. IF THE DEACTIVATION PROCEDURE IS NOT DONE, THE ACCIDENTAL OPERATION OF THE INTERLOCK ACTUATOR CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (1)  Open these circuit breakers and attach the DO-NOT-CLOSE tags:
 (a)  P6 Main Power Distribution Panel
 1) 6F12 T/R IND ENG 1

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
2) 6E12 T/R IND ENG 2
 3) 6D12 T/R IND ENG 3
 4) 6C12 T/R IND ENG 4

 TASK 76-11-03-862-023-N00
 11. Remove the Electrical Power from the Fuel Control Toggle Switches (Fig. 201)_________________________________________________________________
 A. General
 (1)  
This task removes the electrical power from the fuel control toggle switches in the engine start module.

 (2)  
You must do this task before the removal or installation of the engine start module.

 B. Access
 (1)  Location Zone
 221 Control Cabin, LH
 222 Control Cabin, RH

 C. Procedure
 S 862-024-N00
 WARNING: MAKE SURE YOU OPEN THE CIRCUIT BREAKERS FOR THE ENGINE IGNITION
_______ BEFORE YOU OPEN THE CIRCUIT BREAKERS FOR THE FUEL CONTROL VALVE. THE IGNITER PLUGS WILL AUTOMATICALLY FIRE IF YOU ARE OUT OF ZERO DETENT, NACELLE ANTI-ICE IS ON, CON IGNITION SWITCH IS SET TO "ON", OR ENGINE START SWITCH IS PULLED TO "ON". IF THE COMBUSTION CHAMBER HAS FUEL IN IT, AN INTERNAL ENGINE OR A TAILPIPE FIRE CAN OCCUR. THE FIRE CAN CAUSE INJURY TO PERSONS OR DAMAGE TO THE ENGINE.
 (1)  Open these circuit breakers and attach the DO-NOT-CLOSE tags:
 (a)  P6 Main Power Distribution Panel
 1) 6F1 IGN 1 ENG 1
 2) 6F2 IGN 1 ENG 2
 3) 6F3 IGN 1 ENG 3
 4) 6F4 IGN 1 ENG 4
 5) 6G1 FUEL SHUTOFF VALVE ENG 1
 6) 6G2 FUEL SHUTOFF VALVE ENG 2
 7) 6G3 FUEL SHUTOFF VALVE ENG 3
 8) 6G4 FUEL SHUTOFF VALVE ENG 4
 9) 6G19 STBY IGN ENG 1
 10) 6G20 STBY IGN ENG 2
 11) 6G21 STBY IGN ENG 3
 12) 6G22 STBY IGN ENG 4
 13) 6K19 IGN 2 ENG 1
 14) 6K20 IGN 2 ENG 2
 15) 6K21 IGN 2 ENG 3
 16) 6K22 IGN 2 ENG 4

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
17) 6L10 FUEL CONT VALVE ENG 1
 18) 6L11 FUEL CONT VALVE ENG 2
 19) 6L12 FUEL CONT VALVE ENG 3
 20) 6L13 FUEL CONT VALVE ENG 4

 TASK 76-11-03-862-025-N00
 12. Remove the Electrical Power from the STAB TRIM Switches and Indicators______________________________________________________________________ (Fig. 201)
 A. General
 (1)  
This task removes the electrical power from the STAB TRIM control switches in the engine start module and the STAB TRIM indicators on the side panel brackets of the control stand.
　
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本文鏈接地址：747-400 AMM 飛機(jī)維護(hù)手冊(cè) 發(fā)動(dòng)機(jī)控制 ENGINE CONTROLS(27)