757 AMM 飞机维护手册 防火 FIRE PROTECTION 2(91)

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____ the appropriate adapter cable must be attached to match the electrical connectors from the squibs.
 E. Do a test of the Cargo Fire Extinguisher Bottle 1 Squib Discharge Circuit
 S 216-181
 (1)  Make sure the APU/CARGO Fire Control Panel looks like this:
 (a)  
The FWD and AFT Cargo Fire ARMED switchlights are OFF.

 (b)  
The DISCH light in the BTL DISCH 1 and 2 switches is off.

 S 866-044
 (2)  Set the LOAD CHECK switch on the squib test box to the OFF position.
 S 436-182
 WARNING: DO NOT INSTALL ELECTRICAL CONNECTORS ON THE BOTTLE SQUIBS
_______ DURING THE TEST. IF THE BOTTLE IS ACCIDENTALLY FIRED, INJURY TO PERSONS CAN OCCUR.
 (3)  
Connect the bottle 1 FWD cargo squib connector, D4412, to the squib test box adapter cable.

 S 866-050

 (4)  
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P6 panel:

 (a)  
6H5, FIRE EXTINGUISHING CARGO BTL 1

 (b)  
6H6, FIRE EXTINGUISHING CARGO BTL 2

 

 S 866-183
 (5)  Push the FWD Cargo Fire switch.
 (a)  Make sure the FWD ARMED switchlight is ON.
 S 866-184
 (6)  Push and hold the BTL DISCH 1 switch.
 (a)  Make sure the BOTTLE DISCHARGE light on the squib test box comes on.
 S 866-052
 (7)  
Open this circuit breaker on the P6 panel:

 (a)  6H5, FIRE EXTINGUISHING CARGO BTL 1

 (8)  
Make sure the BOTTLE DISCHARGE light on the squib test box goes off.

 S 216-053
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MAINTENANCE MANUAL

 S 746-054
 (9)  Close this circuit breaker on the P6 panel:
 (a)  6H5, FIRE EXTINGUISHING CARGO BTL 1
 S 216-056
 (10)
 Make sure the multimeter on the squib test box shows 23 volts minimum.

 S 866-057

 (11)
 Set the LOAD CHECK switch on the squib test box to the ON position.

 (a)  Make sure the multimeter on the squib test box shows 16 volts minimum.
 NOTE: If the voltage is less than 16 volts, the circuit may
____ not give sufficient current to fire the squib.
 S 866-059
 (12) Release the BTL DISCH 1 switch.
 (a)  
Make sure the multimeter on the squib test box shows 0 volts.

 (b)  
Make sure the BOTTLE DISCHARGE light on the squib test box goes off.

 S 866-060
 (13) Push and hold the BTL DISCH 2 switch.
 (a)  Make sure the BOTTLE DISCHARGE light on the squib test box remains off.
 S 866-061
 (14)
 Release the BTL DISCH 2 switch.

 S 866-062

 (15)
 Push the FWD Cargo Fire switch and release.

 (a)  Make sure the FWD ARMED switchlight is OFF.
 S 866-063
 (16) Push the AFT Cargo Fire switch.
 (a)  Make sure the AFT ARMED switchlight is ON.
 S 866-064
 (17)
 Push and hold the BTL DISCH 1 switch.

 (a)  Make sure the BOTTLE DISCHARGE light on the squib test box remains off.

 (18)
 Release the BTL DISCH 1 switch.

 S 866-066
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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A
757 MAINTENANCE MANUAL
 S 866-068
 (19) Push and hold the BTL DISCH 2 switch.
 (a)  Make sure the BOTTLE DISCHARGE light on the squib test box remains off.
 S 866-069
 (20)
 Release the BTL DISCH 2 switch.

 S 866-070

 (21)
 Push the AFT Cargo Fire switch and release.

 (a)  Make sure the AFT ARMED switchlight is OFF.
 S 866-071
 (22) Open these circuit breakers on the P6 panel and attach DO-NOT-CLOSE tags:
　
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