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TM 9-2350-287-20-2
21-6.
ENGINE AFES TUBING AND NOZZLES REPLACEMENT.
This task covers
a. Removal
b. Installation
Initial Setup:
TooIs/Test Equipment:
Engine AFES deactivated (para 21-2).
General mechanic’s tool kit
Left and right projectile rack assemblies moved
(Item 24, Appendix I)
to rear of vehicle (refer to TM 9-2350-287-10)
(for crew compartment procedure only).
Materials/Parts:
Power Pack removed (para 3-2) (for engine
LockWasher (4) (Item 195, Appendix H)
compartment procedure only).
Preformed packing (2) (Item 222, Appendix H)
Preformed packing (2) (Item 223, Appendix H)
Equipment Conditions:
Vehicle parked on level ground
(refer to TM 9-2350-287-10).
a.
REMOVAL
WARNING
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.
CAUTION
Do not bend tube assemblies when disconnecting them. If necessary, loosen tube
assemblies at both ends before disconnecting them from elbows.
l
l
NOTE
Steps 1 through 6 cover removal of engine AFES tubing and nozzles in crew
compartment. Steps 7 through 12 cover removal of engine AFES tubing and
nozzles in engine compartment.
Steps 1 through 3 may have been completed when engine AFES was deactivated.
21-16
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