(b)  
6H6, FIRE EXTINGUISHING CARGO BTL 2

 S 036-072
 (23)
 Disconnect the bottle 1 FWD cargo squib connector, D4412, from the squib test box adapter cable.

 S 866-073

 (24)
 Set the LOAD CHECK switch on the squib test box to the OFF position.

 S 436-074

 (25)
 Connect the bottle 1 AFT cargo squib connector, D4414, to the squib test box adapter cable.

 S 866-075

 (26)
 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

 WARNING:_______ DO NOT INSTALL ELECTRICAL CONNECTORS ON THE BOTTLE SQUIBS
 DURING THE TEST.  IF THE SQUIB IS ACCIDENTALLY FIRED, INJURY TO
 PERSONS CAN OCCUR.

 S 866-076
 (27) Push the AFT Cargo Fire switch.
 (a)  Make sure the AFT ARMED switchlight is ON.
 S 866-077
 (28) Push and hold the BTL DISCH 1 switch.
 (a)  Make sure the BOTTLE DISCHARGE light on the squib test box comes on.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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A
757
MAINTENANCE MANUAL

 S 866-081
 (29) Open this circuit breaker on the P6 panel:
 (a)  6H5, FIRE EXTINGUISHING CARGO BTL 1
 S 216-082
 (30)
 Make sure the BOTTLE DISCHARGE light on the squib test box goes off.

 S 866-083

 (31)
 Close this circuit breaker on the P6 panel:

 (a)  6H5, CARGO FIRE EXTINGUISHING CARGO BTL 1
 S 766-085
 (32)
 Make sure the multimeter on the squib test box shows 23 volts minimum.

 S 866-086

 (33)
 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 866-087
 (34) 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 866-089
 (35) Push and hold the BTL DISCH 2 switch.
 (a)  Make sure the BOTTLE DISCHARGE light on the squib test box remains off.
 S 866-090
 (36)
 Release the BTL DISCH 2 switch.

 S 866-091

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

 (a)  Make sure the AFT ARMED switchlight is OFF.
 S 866-092
 (38) Push the FWD Cargo Fire switch.
 (a)  Make sure that ARMED is shown.
 S 866-093
 (39) Push and hold the BTL DISCH 1 switch.
 (a)  Make sure the BOTTLE DISCHARGE light on the squib test box remains off.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 26-23-01
 ALL  ú ú 01 Page 608 ú Sep 28/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
 S 866-095
 (40)
 Release the BTL DISCH 1 switch.

 S 866-306

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

 (a)  Make sure the BOTTLE DISCHARGE light on the squib test box remains off.
 S 866-307
 (42)
 Release the BTL DISCH 2 switch.

 S 866-099

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

 (a)  Make sure the FWD ARMED switchlight is OFF.
 S 866-100
 (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
　
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