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TM 9-2350-287-20-2
21-9.
ENGINE COMPARTMENT FIRE SENSING ELEMENTS REPLACEMENT.
This Task Covers:
a. Removal
b. Installation
Initial Setup:
Tools/Test Equipment:
General mechanic’s tool kit (Item 24,
Appendix I)
Materials/Parts:
Rag (Item 56, Appendix D)
LockWasher (88) (Item 161,
Appendix H)
Equipment Conditions:
Vehicle parked on level ground (refer to
TM 9-2350-287-10).
Forward battery compartment access doors
opened (refer to TM 9-2350-287-10).
Powerpack removed (para 3-2).
Master relay removed (para 7-21).
Engine AFES deactivated (para 21-2)
a.
REMOVAL
WARNiNG
Any automatic fire extinguishing system (AFES) unit in need of maintenance or
repair is more prone to accidental discharge. Accidental discharge couil lead to
frostbite or other injury. Small parts or tools become dangerous projectiles when
propllied by Halon 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
21-29
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