747-400 AMM 飞机维护手册 动力装置 POWER PLANT 1(39)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
2)  Find the EICAS advisory message, ENG (1, 2, 3, or 4) FUEL VLV.
 3) 4)  Show the maintenance message for this fault.Push the line select key adjacent to the ERASE prompt.
 S 862-158-N00
 (2)  For the applicable engine, remove the DO-NOT-CLOSE tags and close these circuit breakers:
 (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) 6K19 IGN 2 ENG 1 6) 6K20 IGN 2 ENG 2 7) 6K21 IGN 2 ENG 3 8) 6K22 IGN 2 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
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 (3)  Put the applicable ENGINE BLEED switch to the OFF position.
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 (4)  Remove pneumatic power if it is not necessary (AMM 36-00-00/201).
 S 862-155-N00
 (5)  Remove electrical power if it is not necessary (AMM 24-22-00/201).
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 (6)  Install the engine inlet and exhaust covers after the engine has become cool if the engine is not operated for a long time.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
TASK 71-00-00-802-092-N00
 12. Power Plant Operation (Wet-Motor)
_____________________
 A. General
 CAUTION: DO NOT DO THE WET-MOTOR PROCEDURE IF FUEL IS NOT NECESSARY IN
_______ THE ENGINE TO DO THE NECESSARY TEST. IF FUEL IS NOT NECESSARY IN THE ENGINE, DO THE DRY-MOTOR PROCEDURE IN THE TASK ABOVE.
 (1)  
Obey this caution during all of this task.

 (2)  
When you do the wet-motor procedure, fuel goes in the engine combustion chamber.

 (3)  
Use the dry-motor procedure to motor the engine unless the wet motor of the engine is necessary for a specific engine test.

 B.
Special Tools and Equipment

 (1)  
Interphone Service Equipment

 C.
References

 (1)  
AMM 12-13-03/301, Engine

 (2)  
AMM 12-13-07/301, Intergrated Drive Generator

 (3)  
AMM 24-22-00/201, Manual Control

 (4)  
AMM 36-00-00/201, Pneumatic System

 (5)  
AMM 45-10-00/201, Central Maintenance Computer System

 D.
Access

 (1)  
Location Zone
 221 and 222 Control Cabin
 412 Engine 1
 422 Engine 2
 432 Engine 3
 442 Engine 4

 E.
Prepare to Wet Motor the Engine.

 S 492-135-N00
 (1)  
Install the ground locks and the wheel chocks on the wheels of the landing gear, which includes the nose wheels.

 S 862-137-N00

 (2)  
Before you motor the engine, do the steps that follow:

 (a)  Remove the engine inlet and exhaust covers, if they are installed.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(b)  
Examine the engine oil tank for sufficient servicing.

 1)  If it is necessary, do the servicing procedure for the engine oil tank (AMM 12-13-03/301).

 (c)  
Examine the IDG for sufficient servicing.

 1)  If it is necessary, do the servicing procedure for the IDG (AMM 12-13-07/301).

 (d)  
Examine these areas for unwanted materials: 1) The areas around the air inlet 2) The fan and turbine exhaust ducts 3) The wing leading edge immediately above the engine 4) The ground area around the engine.

 (e)  
Make sure you have the conditions that follow: 1) The forward thrust lever is in the idle position 2) The reverse thrust lever is in the off (stow) position 3) The FUEL CONTROL switch is in the CUTOFF position.
　
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