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时间:2011-04-10 09:38来源:蓝天飞行翻译 作者:航空
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 26-11-00
 ALL  ú ú 02 Page 209 ú Oct 18/01
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A
747-400 MAINTENANCE MANUAL
 ENGINE FIRE AND OVERHEAT DETECTION SYSTEM - ADJUSTMENT/TEST
___________________________________________________________
 1.  General_______
 A.  This section contains procedures to do an operational test and a system test of the engine fire detection system.
 (1)  
The operational test will make sure the system operates correctly in a minimum of time. Only equipment installed in the airplane will be used.

 (2)  
The system test increases the function of the operational test. The system test will make sure that all of the performance requirements of the system occur correctly.


 B.  To get access to the detector elements open the engine thrust reverser. The detector elements are found top forward, lower forward, top aft, and lower aft part of engine.
 TASK 26-11-00-715-001
 2.  Operational Test (Fig. 501)________________
 A.  References
 (1)  
24-22-00/201, Manual Control

 (2)  
IPC 26-11-02 Fig.1

 (3)  
WDM 26-11-11 thru 26-11-43

 (4)  
SSM 26-11-01 thru 26-11-04


 B.  Access
 (1)  Location Zone
 221 Control Cabin LH
 222 Control Cabin RH
 412 Engine 1
 422 Engine 2
 432 Engine 3
 442 Engine 4

 C.  Prepare for the Test
 S 865-002
 (1)  
Supply electrical power (Ref 24-22-00/201).

 S 865-003

 (2)  
Close these circuit breakers:


 (a)  P6 Main Power Distribution Panel 1) 6C1 ALTN PWR ENG FIRE/OVHT DET LOOP A ENG 1
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 26-11-00
 ALL  ú ú 02 Page 501 ú Oct 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

747-400
MAINTENANCE MANUAL


A

ENGINE FIRE

SWITCH HANDLES
ENGINE FIRE
SWITCH HANDLES
B

Engine Fire and Overheat Detection System Test
Figure 501 (Sheet 1)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 26-11-00
 ALL  ú ú 02 Page 502 ú Jun 10/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

UPPER AFT  UPPER AFT 
ELEMENT  ELEMENT  UPPER FORWARD 
ELEMENT 
SEE  C  SEE  C  SEE  C 
LOWER AFT 
ELEMENT 
LOWER FORWARD ELEMENT  SEE  C  ELEMENT LOWER AFT 
SEE  C  SEE  C 
LEFT SIDE  RIGHT SIDE 

Engine Fire and Overheat Detection System Test Location
Figure 501 (Sheet 2)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 26-11-00
 ALL  ú ú 03 Page 503 ú Oct 10/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

ENGINE FIRE AND OVERHEAT DETECTOR (EXAMPLE)
C
Engine Fire and Overheat Detection System Test Location
Figure 501 (Sheet 3)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 26-11-00
 ALL  ú ú 02 Page 504 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 2) 6C2 ALTN PWR ENG FIRE/OVHT DET LOOP A ENG 2 3) 6C3 ALTN PWR ENG FIRE/OVHT DET LOOP A ENG 3 4) 6C4 ALTN PWR ENG FIRE/OVHT DET LOOP A ENG 4 5) 6G10 ENG FIRE/OVHT DET ENG 2 LOOP A 6) 6G11 ENG FIRE/OVHT DET ENG 2 LOOP B 7) 6G12 ENG FIRE/OVHT DET ENG 4 LOOP A 8) 6G13 ENG FIRE/OVHT DET ENG 4 LOOP B 9) 6H10 ENG FIRE/OVHT DET ENG 1 LOOP A 10) 6H11 ENG FIRE/OVHT DET ENG 1 LOOP B 11) 6H12 ENG FIRE/OVHT DET ENG 3 LOOP A 12) 6H13 ENG FIRE/OVHT DET ENG 3 LOOP B
 
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