737-300 400 500 AMM 飞机维护手册 发动机指示 ENGINE INDICATIN(6)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
ENGINE TACHOMETER SYSTEM - ADJUSTMENT/TEST
__________________________________________
 1.  General
_______
 A.  This procedure contains 4 tasks: an operational test and a system test for each of the N1 tachometer system and the N2 tachometer system.
 B.  Do the operational test for each system when you replace the indicator for that system. Do the system test for each system when you do the trouble-shooting for that system.
 TASK 77-12-00-715-060-C00
 2.  Operational Test - N1 Tachometer System
_______________________________________
 A.  References
 (1)  AMM 71-00-00/201, Power Plant
 B.  Access
 (1)  Location Zone
 101 Control Cabin - Left
 102 Control Cabin - Right

 C.  Procedure
 S 865-055-C00
 (1)  
Operate the engines (AMM 71-00-00/201).

 S 215-054-C00

 (2)  
Make sure the N1 indicators show approximately the same N1% when the N2 indicators show the same N2%.

 S 865-056-C00

 (3)  
Stop the engines (AMM 71-00-00/201).

 TASK 77-12-00-735-001-C00
 3.  System Test - N1 Tachometer System
__________________________________
 A.  Special Tools and Equipment
 (1)  C77002-20 Tachometer System Test Box
 B.  Standard Tools and Equipment
 (1)  Function generator -Gives approximately a 5 V square or sine wave, and adjusts from 50 Hz to 3000 Hz Wavetek Model 21 Synthesizer/Function Generator or equivalent.
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////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
(2)  Multimeter - Dana 4003 Digital or equivalent
 C. References
 (1)  
AMM 24-22-00/201, Manual Control

 (2)  
AMM 71-11-02/201, Fan Cowl Panels

 D. Access
 (1)  
Location Zone
 101 Control Cabin - Left
 102 Control Cabin - Right
 503 Left Engine . Fan Frame 4 o'clock
 603 Right Engine . Fan Frame 4 o'clock

 (2)  
Access Panel 5737L Right Fan Cowl Panel . Left Engine 5837R Right Fan Cowl Panel . Right Engine

 E. Prepare to do the System Test (Fig. 501)
 S 865-002-C00
 (1)  AIRPLANES WITHOUT EIS; For the applicable engine, open these circuit breakers:
 (a)  P6 Main Power Distribution Panel
 1) C00732 TACH IND ENG 1 N1
 2) C00733 TACH IND ENG 2 N1

 S 865-004-C00
 (2)  
AIRPLANES WITH EIS; For the applicable engine, open these circuit breakers:

 (a)  P6 Main Power Distribution Panel 1) C01182 EIS PRIMARY 1 (Engine 1) 2) C01184 EIS PRIMARY 2 (Engine 1) 3) C01183 EIS PRIMARY 3 (Engine 2) 4) C01185 EIS PRIMARY 4 (Engine 2)

 (3)
Open the right fan cowl panel (AMM 71-11-02/201).

 S 015-006-C00
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 ALL  ú ú C02 Page 502 ú Mar 12/00
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////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
N1 SPEED SENSOR
SEE A
ELECTRICAL CONNECTOR N1 SPEED (D546) SENSOR
A

Test of the N1 Speed Sensor
Figure 501

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