S 014-003
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH LOWER CARGO ú
26-23-02
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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
HEAD DISCHARGE GLAND NUT
COMPARTMENT MIX BAY DISCHARGE PORT
LUG ASSY-GND
2. LOCKWIRE
CARGO FIRE 1. DISCHARGE
EXTINGUISHER CARTRIDGE PROTECTIVE
BOTTLE (SQUIB) COVER
SEE A (EXAMPLE)
B
CARGO FIRE
EXTINGUISHER
BOTTLE (REF)
FORWARD
SQUIB
SEE B
AFT SQUIB ELECTRICAL CONNECTOR
SEE B (2 LOCATIONS)FWD
CARGO FIRE EXTINGUISHER BOTTLE
A
Cargo Compartment Fire Extinguisher Bottle Squib Installation Figure 401
G87055
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH LOWER CARGO ú
26-23-02
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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 864-006
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).
E. Remove the Squib
S 034-007
(1) Disconnect the electrical connectors from the applicable squib.
(a)
Disconnect the FWD Squib (M2249) connector, D12794.
(b)
Disconnect the AFT Squib (M2250) connector, D12796.
S 434-008
WARNING:_______PUT A PROTECTIVE COVER ON THE FIRE BOTTLE SQUIB. IF YOU DO NOT PUT A PROTECTIVE COVER ON THE FIRE BOTTLE SQUIB, THE FIRE BOTTLE CAN RELEASE ITS CONTENTS SUDDENLY AND CAUSE INJURY TO PERSONS.
(2)
Put a protective cover on the squib (1).
S 034-009
(3)
Remove the lockwire (2) from the squib (1).
S 024-010
(4)
Remove the squib (1) from the discharge head.
TASK 26-23-02-404-011
3. Install the Cargo Fire Extinguishing Bottle Squib (Fig. 401)_________________________________________________
A. Equipment
(1) Voltmeter - with a 10K ohm or greater resistance
B. References
(1)
20-40-12/201, Electrostatic Sensitive Devices - Maintenance Practices
(2)
24-22-00/201, Manual Control
C. Access
(1)
Location Zones
210 Air Conditioning Distribution Bay
(2)
Access Panels
4404R, Forward Cargo Compartment Door
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH LOWER CARGO ú
26-23-02
FIRE EXTINGUISHING SYSTEM ú ú 01 Page 403 ú Nov 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
D. Prepare for the Installation
S 864-012
(1) Open this circuit breaker on the circuit breaker panel P6 or P18, and attach DO-NOT-CLOSE tags:
(a) LWR CARGO FIRE EXT 1
S 014-013
(2)
Open the forward cargo door, 4404R.
S 014-014
(3)
Remove the lining at the aft end of the forward cargo compartment to get access to the mix manifold bay.
S 014-015
(4)
If it is necessary, remove the air conditioning duct that is in front of the fire extinguishing bottle.
E. Install the Squib
S 424-016
(1) Do these steps to install the squib.
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