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MAINTENANCE MANUAL

TO FORWARD  TO AFT  BOTTLE NO. 1 
(YELLOW) COMPARTMENT  DISCHARGE LINE FORWARD  (BLUE) COMPARTMENT  BOTTLE NO. 2 ASEE  TUBING COMPARTMENT TO FORWARD 
PRESSURE SWITCH  SEE  B 

BOTTLE NO. 2
FIRE BOTTLE NO. 1
EXTINGUISHER TUBING
SEE C
SEE C
FILTER/DRIER  DISTRIBUTION NOZZLE
1
(EXAMPLE) AFT CARGO
FWD DOOR
AFT CARGO COMPARTMENT
HARD POINT HARD POINT
CONNECTOR CONNECTOR
REGULATOR
FILTER/DRIER 1
1
AFT CARGO COMPARTMENT
PUSHBUTTON PRESSURE OR HEX KEY SWITCH
THERMAL RELIEF AND REFILL
CARRYING HANDLES
SEE D
FLIGHT COMPARTMENT
ARMED ARMED
MOUNTING BRACKETS
FWD AFT
r r
C A R
DISCHARGE
G PORT O
1-BTL DISCH-2
F
I
R
E DISCHARGE
SQUIB
DISCH DISCH
aa
CARGO FIRE BOTTLE APU/CARGO FIRE CONTROL PANEL
C D
Cargo Compartment Fire Extinguishing System Figure 601 (Sheet 2)
C99271
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. GUN 008-999 ú

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MAINTENANCE MANUAL

 S 866-002
 (2)  Open these circuit breakers on the main power distribution panel, P6, and attach DO-NOT-CLOSE tags:
 (a)  
6H1, FIRE EXTINGUISHING ENG L BTL 1

 (b)  
6H5, FIRE EXTINGUISHING CARGO BTL 1

 (c)  
6H6, FIRE EXTINGUISHING CARGO BTL 2

 S 866-172
 (3)  Open these circuit breakers on the overhead circuit breaker panel, P11, and attach DO-NOT-CLOSE tags:
 (a)  
11J2, INSTRUMENTS EICAS CMPTR LEFT

 (b)  
11J29, INSTRUMENTS EICAS CMPTR RIGHT

 S 016-189
 (4)  
Gain access to the lower cargo fire extinguishing bottles. The bottles are located behind the liners located in the forward end of the aft cargo compartment.

 S 426-003

 (5)  
On the lower cargo compartment fire extinguisher bottles 1 and 2, disconnect these connectors per Table 601:

 Cargo Fire Bottle Connections Table 601:
_______________________________________
 ~................................................................. | Connector | Bottle Connected To: | ................................................................... | D4412 | Bottle 1 - Fwd Cargo discharge Squib | | | | | D4414 | Bottle 1 - Aft Cargo discharge Squib | | | | | D4418 | Bottle 2 - Fwd Cargo discharge Squib | | | | | D4420 | Bottle 2 - Aft Cargo discharge Squib | | | | 2..................…..............................................1
 S 436-173
 WARNING:_______PUT THE PROTECTIVE COVERS ON THE FIRE BOTTLE SQUIBS. IF YOU DO NOT PUT THE PROTECTIVE COVERS ON THE FIRE BOTTLE SQUIBS, THE FIRE BOTTLES CAN RELEASE ITS CONTENTS SUDDENLY AND CAUSE INJURY TO PERSONS.
 CAUTION:_______DO NOT PUT SHUNT PLUGS ON THE FIRE BOTTLE SQUIBS. THE SHUNT PLUGS CAN CAUSE DAMAGE TO THE SQUIB PINS.
 (6)  Put the protective covers on all the fire bottle squibs.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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757 MAINTENANCE MANUAL
 S 436-183
 (7)  
Connect the multimeter to the squib test box.

 S 436-184

 (8)
Attach the adapter cable to the connector on the squib test box.

 NOTE: Adapter cables are included with the squib test box and
　
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