26-23-05
ú ú 10 Page 403 ú Sep 20/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
RECEPTACLE
DRIVE SCREW LOCK
NAMEPLATE LOCATION
MANUAL RESET PLUNGER DRIVE SCREW LOCK LOCKWIRE HOLES
B
Cargo Fire Extinguisher Bottle/Discharge
Line Pressure Switch Installation
Figure 401 (Sheet 3)
G23711
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757
MAINTENANCE MANUAL
S 024-014
(2)
Disconnect the inlet tube from the pressure switch.
S 034-005
(3)
Disconnect the electrical connector from the pressure switch.
S 034-006
(4)
Remove the screw, washer and clamp that hold the pressure switch to the airplane structure.
S 024-007
(5)
Remove the pressure switch.
TASK 26-23-05-404-008
3. Install the In-Line Pressure Switch (Fig. 401)
___________________________________
A. References
(1)
AMM 26-23-00/501, Cargo Fire Extinguishing System - Adjustment/Test
(2)
AMM 25-50-03/401, Bulkhead Lining - Removal/Installation
B. Access
(1) Location Zones
151 Forward of Aft argo Compartment (Left)
152 Forward of Aft Cargo Compartment (Right)
C. Prepare for the Installation
S 864-010
(1) Make sure these circuit breakers are open.
(a)
6H5, FIRE EXTINGUISHING CARGO BTL 1
(b)
6H6, FIRE EXTINGUISHING CARGO BTL 2
S 414-009
(2)
Open the door to the aft cargo compartment.
S 014-010
(3)
Make sure the forward bulkhead lining is removed from the aft cargo compartment (AMM 25-50-03/401).
D. Installation
S 424-011
(1)
Put the pressure switch in its position on the airplane structure.
S 424-021
(2)
Install the screw, washer and clamp that hold the pressure switch to the airplane structure.
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MAINTENANCE MANUAL
S 434-013
(3)
Connect the inlet tube to the pressure switch.
S 424-014
(4)
Tighten the connector on the inlet tube.
S 424-015
(5)
Connect the electrical connector to the pressure switch.
S 864-016
(6)
Push the reset button on the pressure switch.
E. Do an installation test
S 864-017
(1) Remove the DO-NOT-CLOSE tag and close these circuit breakers on the P6 panel:
(a)
6H5, FIRE EXTINGUISHING CARGO BTL 1
(b)
6H6, FIRE EXTINGUISHING CARGO BTL 2
S 714-012
(2) Do this task: Operational Test - Bottle Pressure Switch
(AMM 26-23-00/501).
F. Put the Airplane Back to Its Usual Condition
S 424-016
(1)
Install the forward bulkhead lining in the aft cargo compartment (AMM 25-50-03/401).
(2)
If it is necessary, close the aft cargo compartment door.
S 414-011
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757 MAINTENANCE MANUAL
LAVATORY WASTE COMPARTMENT AUTOMATIC FIRE EXTINGUISHING -
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：757 AMM 飞机维护手册 防火 FIRE PROTECTION 2(111)
