747-400 AMM 飞机维护手册 动力装置 POWER PLANT 1(23)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(c)  If high speed winds are less than 20 knots, you can operate the engine at minimum idle in the configuration that follows: 1) The fan cowl panels are removed or open and held by the
 hold-open rods. 2) The thrust reversers are open and held by the hold-open equipment for the thrust reverser. 3) The core cowl panels are removed.
 TASK 71-00-00-862-003-N00
 4. Prepare for the Power Plant Operation
_____________________________________
 A. General
 (1)  
This procedure contains the instructions necessary to operate the engine during the permitted conditions. You can use this procedure to examine the operation of the engine or the related systems when the engine operation is necessary.

 (2)  
During cold weather, use the Power Plant Operation (Cold Weather) procedure to operate the engine.

 (3)  
It is important to have a clean engine compartment because the large quantity of mass airflow can pull unwanted material into the engine.

 (a)  
You must fully clean and examine the area after you are done with the work.

 (b)  
Make sure there is no dirt, oil, or grease in the inlet area.

 (c)  
Remove all parts which are not used, for example, nuts, washers, and pieces of lockwire.

 

 (4)  
To prevent corrosion in the compressor stages and damage to the fan, you are recommended to install the applicable covers on the engine inlet and exhaust when it is possible.

 (5)  
When the temperature is less than 0°C (32°F) or there is sufficient wind to turn the engine, it is important to immediately install the covers on the engine.

 (6)  
You must monitor the drain mast during the start for signs of leakage.

 (7)  
You must make a record of the engine indication on the PERF page with the vertical scale displays during the transient operation and the digital displays during the continuous operation.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(8)  
When the fan cowls and thrust reverser cowls are open, the engine fire extinguishing systems are not effective. You must have supplemental fire extinguishing equipment and a ground observer available when you do this test.

 B.
Special Tools and Equipment

 (1)  
Interphone Service Equipment

 (2)  
Cover - Engine Inlet

 (3)  
Covers - Engine Exhaust (Fan and Turbine)

 (4)  
4MIT65B00719 Barrier - Engine Safety

 (5)  
A78001-22 Equipment - Thrust Reverser Hold-Open (used for an engine operation with the cowling open)

 C.
Standard Tools and Equipment

 (1)  
Thermometer - Alcohol, MIL-T-11399, Type ML-5, -40 to 120°F (-40 to 49°C) range, |0.5°F (|0.25°C) tolerance

 (2)  
Thermometer - Mercury, -40 to 120°F (-40 to 49°C) range, |0.5°F (|0.25°C) tolerance (optional to the alcohol thermometer if you do not get it on the airplane)

 D.
References

 (1)  
AMM 12-11-01/301, Fuel Tank Servicing

 (2)  
AMM 12-12-01/301, Hydraulic Systems

 (3)  
AMM 12-13-03/301, Engine

 (4)  
AMM 12-13-07/301, Integrated Drive Generator

 (5)  
AMM 24-11-01/601, Integrated Drive Generator

 (6)  
AMM 24-22-00/201, Manual Control

 (7)  
AMM 29-11-00/201, Main Hydraulic Supply System

 (8)  
AMM 36-00-00/201, Pneumatic System

 (9)  
AMM 71-00-00/201, Power Plant

 (10)
 AMM 71-00-00/501, Power Plant

 (11)
 AMM 71-11-04/201, Fan Cowl Panel

 (12)
 AMM 71-11-06/201, Core Cowl Panel

 (13)
 AMM 71-11-06/401, Core Cowl Panel

 (14)
 AMM 72-00-00/601, Engine

 (15)
 AMM 74-21-01/601, Exciter-to-Igniter Plug Cable

 (16)
 AMM 78-31-00/201, Thrust Reverser System
　
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