E. Discharge Tube Pressure Test
 S 035-046
 (1)  Disconnect the discharge tubes from the discharge ports on the cargo fire bottle.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH LOWER CARGO ú

 26-23-00
 FIRE EXTINGUISHING SYSTEM  ú ú 02 Page 509 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 (2)  S 485-047Connect a pressure source to the forward cargo discharge tube.
 (3)  S 485-048Install the plugs on the fire extinguishing nozzles in the forward cargo compartment.
 (4)  S 785-049Pressurize the fire extinguishing tubes to 50-55 psig. (a) Wait a minimum of 3 minutes for the air pressure to become stable.
 (5)  S 785-050Turn off the pressure source. (a) Make a record of the air pressure. (b) Wait 10 minutes, then measure the pressure. 1) Make sure the pressure has not decreased by more than 0.5 psig.
 (6)  S 785-051Bleed the fire extinguishing tubes to 0 psi.
 (7)  S 085-052Disconnect the pressure source from the forward cargo discharge tubes.
 (8)  S 085-053Remove the plugs from the discharge nozzles in the forward cargo compartment.
 (9)  S 485-055Connect a pressure source to the aft cargo discharge tube.
 S 485-056

 (10)
 Install the plugs on the fire extinguishing nozzles in the aft cargo compartment.

 S 785-057

 (11)
 Pressurize the fire extinguishing tubes to 50-55 psig.

 (a)  Wait a minimum of 3 minutes for the air pressure to become stable.
 S 785-058
 (12) Turn off the pressure source.
 (a)  
Make a record of the air pressure.

 (b)  
Wait 10 minutes, then measure the pressure.

 1)  Make sure the pressure has not decreased by more than 0.5 psi.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH LOWER CARGO ú

 26-23-00
 FIRE EXTINGUISHING SYSTEM  ú ú 02 Page 510 ú Nov 12/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 785-059
 (13)
 Bleed the fire extinguishing tubes to 0 psi.

 S 085-060

 (14)
 Disconnect the pressure source from the aft cargo discharge tube.

 S 085-061

 (15)
 Remove the plugs from the discharge nozzles in the aft cargo compartment.

 S 435-062

 (16)
 Connect the discharge tubes to the discharge outlets on the bottle.

 (a)  
Apply a layer of compound, BMS 3-27 to the threads where the tube attaches to the discharge port.

 (b)  
Connect the tube to the discharge port.

 NOTE: The yellow tube supplies extinguishant to the
____ forward cargo compartment. The blue tube supplies extinguishant to the aft cargo compartment.
 (c)  
Remove all unwanted compound, BMS 3-27.

 (d)  
Tighten the nut on the tube assembly.

 F. Put the Airplane Back to its Usual Condition
 S 415-063
 (1)  
Install the lining at the aft end of the forward cargo compartment.

 S 415-064

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

 TASK 26-23-00-705-094
 7. Cargo Fire Extinguishing Bottle Squib Circuit Alternate Test
____________________________________________________________
 A. General
_______
 (1)  The squib circuit test should be performed every time the Cargo Fire Control Panel, ir a fire bottle is disconnected from the airplane wiring.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH LOWER CARGO ú

 26-23-00
 FIRE EXTINGUISHING SYSTEM  ú ú 04 Page 511 ú Jul 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
　
中國航空網(wǎng) www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：737-300 400 500 AMM 飛機維護手冊 防火 FIRE PROTECTION(137)