(2)  
Close the forward cargo door, 4404R.

 S 415-110
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH LOWER CARGO ú

 26-23-00
 FIRE EXTINGUISHING SYSTEM  ú ú 02 Page 513 ú Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 CARGO COMPARTMENT FIRE EXTINGUISHING BOTTLE - REMOVAL/INSTALLATION
__________________________________________________________________
 1.  General_______
 A.  A cargo fire extinguishing bottle is installed in the mix manifold bay, in the aft end of the forward cargo compartment.
 B.  This procedure has tasks to remove and install the cargo fire
 extinguishing bottle.

 TASK 26-23-01-004-001
 2.  Remove the Cargo Fire Extinguishing Bottle (Fig. 401)__________________________________________
 A.  Equipment
 (1)  
Squib Protective Cover

 (a)  
M83723/60-28-AN or AC (Fwd Squib)

 (b)  
M83723/60-210-AN or AC (Aft Squib)

 (2)  
Discharge Port Cap (Fwd Port = 1/2 inch, Aft Port = 5/8 inch) -Supplied with the fire extinguishing bottles

 B.  References
 (1)  20-40-12/201, Electro-Static Sensitive Devices
 C.  Access
 (1)  
Location Zones
 210 Air Conditioning Distribution Bay

 (2)  
Access Panels
 4404R, Fwd Cargo Compartment Door

 D.  Prepare for the Removal
 S 864-002
 (1)  
Open this circuit breaker and attach DO-NOT-CLOSE tags:

 (a)  Circuit Breaker Panel, P6 or P18
 1) LWR CARGO FIRE EXT 1

 (2)  
Open the forward cargo door, 4404R.

 S 014-004

 (3)  
Remove the lining at the aft end of the forward cargo compartment to get access to the air conditioning distribution bay.

 S 014-005

 (4)  
If it is necessary, remove the air conditioning duct that is in front of the fire extinguishing bottle.

 S 014-003
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH LOWER CARGO ú

 26-23-01
 FIRE EXTINGUISHING SYSTEM  ú ú 01 Page 401 ú Nov 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
MIX BAY COMPARTMENT
CARGO FIRE
EXTINGUISHER
BOTTLE

ELECTRICAL
CONNECTOR
SEE A
PRESSURE
SWITCH

1. CARGO FIRE
EXTINGUISHER
BOTTLE

SERVICE HANDLE
(2 LOCATIONS)

SUPPORT
BRACKET
(REF)
2.
 BOLT

3.
 WASHER (3 LOCATIONS)

DISCHARGE HEAD GLAND NUT (2 LOCATIONS)
DISCHARGE TUBE GROUND STRAP(2 LOCATIONS) (2 LOCATIONS)
DISCHARGE PORT
(2 LOCATIONS)

5. LOCKWIRE
FORWARD
SQUIB
ELECTRICAL

4. NUT
AFT SQUIB CONNECTOR (2 LOCATIONS) (2 LOCATIONS)
FWD
CARGO FIRE EXTINGUISHER BOTTLE
A

Cargo Compartment Fire Extinguisher Bottle Installation
Figure 401

G86514
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH LOWER CARGO ú

 26-23-01
 FIRE EXTINGUISHING SYSTEM  ú ú 01 Page 402 ú Nov 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 864-007
 WARNING: DO NOT TOUCH THE SQUIB BEFORE YOU DO THE PROCEDURES FOR DEVICES
_______ THAT ARE SENSITIVE TO ELECTROSTATIC DISCHARGE. ELECTROSTATIC DISCHARGE CAN CAUSE THE FIRE BOTTLE TO RELEASE ITS CONTENTS SUDDENLY AND CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (5)  Before you touch the squibs, do the procedure for devices that are sensitive to electrostatic discharge (AMM 20-40-12/201).
　
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