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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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757 MAINTENANCE MANUAL
 S 865-097
 (35) Push and hold the BTL DISCH 2 switch.
 (a)  Make sure the BOTTLE DISCHARGE light on the squib circuit test box remains off.
 S 865-099
 (36)
 Release the BTL DISCH 2 switch.

 S 865-100

 (37)
 Push the AFT Cargo Fire switch and release.

 (a)  Make sure the AFT ARMED switchlight is OFF.
 S 865-102
 (38) Push the FWD Cargo Fire switch.
 (a)  Make sure the FWD ARMED switchlight is ON.
 S 865-104
 (39) Push and hold the BTL DISCH 1 switch.
 (a)  Make sure the BOTTLE DISCHARGE light on the squib circuit test box remains off.
 S 865-107
 (40)
 Release the BTL DISCH 1 switch.

 S 865-109

 (41)
 Push and hold the BTL DISCH 2 switch.

 (a)  Make sure the BOTTLE DISCHARGE light on the squib circuit test box remains off.
 S 865-111
 (42)
 Release the BTL DISCH 2 switch.

 S 865-112

 (43)
 Push the FWD Cargo Fire switch and release.

 (a)  Make sure the FWD ARMED switchlight is OFF.
 S 865-114
 (44) Open these circuit breakers on the P6 panel and attach DO-NOT-CLOSE tags:
 (a)  
6H5, FIRE EXTINGUISHING CARGO BTL 1

 (b)  
6H6, FIRE EXTINGUISHING CARGO BTL 2

 S 035-115
 (45)
 Disconnect the bottle 1 AFT cargo squib connector, D4414, from the squib circuit test box, adapter cable.

 S 865-116

 (46)
 Set the LOAD CHECK switch on the squib circuit test box to the OFF position.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757 MAINTENANCE MANUAL
 F. Test Extinguisher Bottle 2 Squib Discharge Circuit
 S 215-345
 (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 035-119
 WARNING: DO NOT INSTALL ELECTRICAL CONNECTORS ON THE BOTTLE SQUIBS
_______ DURING THE TEST. IF THE BOTTLE IS ACCIDENTALLY FIRED, INJURY TO PERSONS CAN OCCUR.
 (2)  
Connect the bottle 2 FWD cargo squib connector, D4418, to the squib circuit test box adapter cable.

 S 865-120

 (3)  
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 865-121
 (4)  Push the FWD Cargo Fire switch.
 (a)  Make sure the FWD ARMED switchlight is ON.
 S 865-123
 (5)  Push and hold the BTL DISCH 2 switch.
 (a)  Make sure the BOTTLE DISCHARGE light on the squib circuit test box comes on.
 S 865-126
 (6)  Open this circuit breaker on the P6 panel:
 (a)  6H6, FIRE EXTINGUISHING CARGO BTL 2
 S 215-348
 (7)  
Make sure the BOTTLE DISCHARGE light on the squib circuit test box goes off.

 S 865-128

 (8)  
Close this circuit breaker on the P6 panel:

 (a)  6H6, FIRE EXTINGUISHING CARGO BTL 2
 S 765-129
 (9)  Make sure the multimeter on the squib circuit test box shows 23 volts minimum.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 26-23-00
 ALL  ú ú 01 Page 515 ú May 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL

 S 865-130
 (10) Set the LOAD CHECK switch on the squib circuit test box to the ON position.
　
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