3.
DISCHARGE NOZZLE
4. SCREW (2 LOCATIONS)
5. RETAINER
6. SCREW (4 LOCATIONS)
DISCHARGE NOZZLE (EXAMPLE)
A
Cargo Bay Fire Extinguishing System Tubing Cleaning
Figure 701
G88423
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737-300/400/500MAINTENANCE MANUAL
(c)
Remove any unwanted compound, BMS 3-27.
(d)
Tighten the discharge tubes to 280 pound-inches ( 31.5 NM) for the FWD (1/2 inch) connector and 360 pound-inches (40.5 NM) for the AFT (5/8 inch) connector.
S 417-013
(2)
Install the air conditioning duct that is in front of the fire extinguishing bottle if it was previously removed.
S 417-014
(3)
Install the lining at the aft end of the forward cargo compartment.
S 417-015
(4)
Install the discharge nozzles on the discharge tubes.
(a) Install the discharge nozzle (3), spacer (2) and pan cover assembly (7) on the discharge tube and hand tighten.
NOTE: Make sure the pan cover line up with those in the
____ bracket. Make sure the holes in the discharge nozzle (3) and spacer (2) line up with those in the pan cover assembly.
(b)
Tighten the nut 45-55 foot-pounds, and install lockwire.
(c)
Secure the discharge nozzle (3) with screws (4).
(d)
Install the cargo ceiling.
(e)
Position the spacer (1) and retainer (5), and secure with screws (6).
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737-300/400/500MAINTENANCE MANUAL
CARGO COMPARTMENT FIRE EXTINGIUSHING BOTTLE SQUIB -
_________________________________________________
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. The fire extinguishing bottle has two discharge cartridges (squibs).
B. This procedure has tasks to remove and install the cargo fire
extinguishing bottle squibs.
TASK 26-23-02-004-001
2. Remove the Cargo Fire Extinguishing Bottle Squib (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, Electrostatic Sensitive Devices
C. Access
(1)
Location Zones
210 Air Conditioning Distribution Bay
(2)
Access Panels
4404R, Forward 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.
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