(e)
Connect electrical connector D584 to the aft bottle discharge plug.
(f)
Press EXT TEST press-to-test light on P8-1 fire protection module.
1) Check that L and R and APU lights illuminate and stay on until press-to-test light is released.
NOTE: Ground for light is through associated selector control valve. Light may not illuminate if valve is faulty.
(3) Restore Airplane to Normal Configuration
(a) Remove electrical power if no longer required.
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26-21-0 Page 504 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. May 01/00
ENGINE FIRE EXTINGUISHER BOTTLE - REMOVAL/INSTALLATION
1. General
A. Removal and installation procedure for both bottles is identical.
B. New bottles are supplied with their cartridge (squib) assembled on the bottle. The pressure switch is protected with a shipping guard that is to be removed before installing bottle.
NOTE: The squib date of manufacture tag, if supplied with the cartridge, must be secured to the bottle discharge plug (elbow).
C. Check the weight of each fire extinguisher bottle before installation to prevent installing a bottle that has been improperly serviced (Ref\26-21-11 I/C).
NOTE: Remove squib shunt plug and pressure switch shipping guard and protective cap before weighing.
2. Engine Fire Extinguisher Bottle - Removal/Installation
NOTE: The operational test must be performed after each removal and installation of the engine fire extinguisher bottle(s).
A. Remove Engine Fire Extinguisher Bottle (Fig. 401)
(1)
Open EXTINGUISHER BOTTLES LEFT and EXTINGUISHER BOTTLES RIGHT and all IND LIGHTS circuit breakers on load control center P6.
(2)
Disconnect electrical connector from discharge squib.
(3)
Cap end of discharge squib or install metal foil shunt over electrical pins. Remove discharge squib from bottle.
WARNING: SQUIB IS EXPLOSIVE. PROTECTIVE CAP MUST BE INSTALLED ON END OF SQUIB OR METAL FOIL SHUNT INSTALLED OVER ELECTRICAL PINS WHEN HANDLING SQUIB.
(4)
Disconnect electrical connector from pressure switch.
(5)
Disconnect discharge line from fire extinguisher bottle discharge plug.
(6)
Remove four mounting bolts and remove fire extinguisher bottle.
B. Install Engine Fire Extinguisher Bottle (Fig. 401)
(1)
Position fire extinguisher bottle in support frame and install mounting bolts.
(2)
Connect discharge line to discharge plug.
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Jun 20/89 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 26-21-11 Page 401
CAUTION: LOOSEN JUST ENOUGH SO PLUG TURNS EASILY. DO NOT FORCE AS DAMAGE TO O-RING SEAL WILL RESULT.
NOTE: Bottle discharge plug may be repositioned as required for installation by loosening clamp nut until discharge plug is free to move.
(3)
Torque retaining nut 45 to 55 pound-feet and lockwire to lug.
(4)
Connect electrical connector to pressure switch.
(5)
Install discharge squib in fire extinguisher discharge plug. Torque to 96 +12 pound-inches and lockwire.
NOTE: The squib must be inspected for damage with special attention given to the soft seal, opposite the electrical connector, which protects the explosive charge. If punctured or otherwise damaged, the squib must be replaced with a new part.
(6)
Remove protective cap or shunt.
C. Perform Operation Test
(1)
Prepare for Test
(a)
Apply electrical power.
(b)
Ensure all electrical connectors (D582 and D584) are disconnected from discharge squibs.
(c)
Check that EXTINGUISHER BOTTLES RIGHT, EXTINGUISHER BOTTLES LEFT and EXTINGUISHER BOTTLES APU circuit breakers on panel P6-2 and all IND LIGHTS, SEC 1, and SEC 5 circuit breakers on P6-3 are closed.
(2)
Operational Test
(a)
Press EXT TEST press-to-test light on P8-1 fire protection module and verify no lights illuminate except APU light.
(b)
Open EXTINGUISHER BOTTLES RIGHT and EXTINGUISHER BOTTLES LEFT circuit breakers.
(c)
Reconnect electrical connector D582 to the fwd bottle discharge squib.
(d)
Close EXTINGUISHER BOTTLES RIGHT and EXTINGUISHER BOTTLES LEFT circuit breakers.
(e)
Press EXT TEST press-to-test light on P8-1 fire protection module
1) Check that the L and APU lights illuminate and stay on until press-to-test light is released.
(f) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：737 AMM 飞机维护手册 防火 FIRE PROTECTION(66)
