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21-4.
ENGINE AFES CYLINDER BOTTLES REPLACEMENT.
This Task Covers:
a. Removal
b. Installation
Initial Setup:
Tools/Test Equipment:
Equipment Conditions:
. Adjustable wrench (Item 3, Appendix I)
. Vehicle parked on Ievel ground
. General mechanic’s tool kit (Item 24,
(refer to TM 9-2350-287-10).
Appendix I)
. Left and right projectile rack assemblies moved
to rear (refer to TM 9-2350-287-10).
Materials/Parts:
. Engine AFES deactivated (para 21-2).
. Cotter pin (Item 12, Appendix H)
. Ventilation hose removed (para 16-4).
. Preformed packing (2) (Item 224, Appendix H)
. Preformed packing (2) (Item 225, Appendix H)
a.
REMOVAL
. Any automatic fire extinguishing system (AFES) unit in need of maintenance or
repair is more prone to accidental discharge. Accidental discharge could lead to
frostbite or other injury. Small parts or tools become dangerous projectiles when
propelled by HaIon discharging at 750 psi. Do not strike cylinder bottles with tools
and do not drop cylinder bottles. To prevent accidental discharge, be careful when
handling cylinder bottles.
. The engine AFES is designed to provide from 2 to 4 hours of fire protection AFTER
vehicle shutdown. Turning off the master switch does NOT deactivate the AFES.
Working on the AFES when active may cause serious injury to personnel.
21-7
TM 9-2350-287-20-2
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