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TM 9-2350-287-20-2
21-13. ENGINE AFES TEST AND ALARM (T/A) PANEL REPLACEMENT.
This Task Covers:
a. Removal
b. Installation
Initial Setup:
Tools/Test Equipment:
Lockwasher (9) (Item 196, Appendix H)
General mechanic's tool kit (Item 24,
Appendix H)
Equipment Conditions:
Vehicle parked on level ground (refer
Materials/Parts:
to TM 9-2350-287-10).
Lockwasher (2) (Item 136, Appendix H)
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 could
lead to frostbite or other injury. Small parts or tools become dangerous
projectiles when propelled by Halon discharging at 750 psi (5171 kPa). 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 two to four hours of fire
protection AFTER vehicle shutdown. Turning off the MASTER switch does
NOT deactivate the AFES. Working on the AFES when the system is active
may cause serious injury to personnel.
1.
Disconnect wiring harness plug (14) from engine AFES test and alarm (T/A) panel (13).
2.
Remove four nuts (1), lockwashers (2), and screws (11), eight washers (3), and T/A panel (13) from bracket (4).
Discard lockwashers.
3.
Remove five screws (8), lockwashers (9), and washers (10) from bracket (4). Discard lockwashers.
4.
Remove screw (6), ground lead (5), two lockwashers (7), and bracket (4) from bracket (12). Discard lockwashers.
b.
INSTALLATION
1.
Install bracket (4) and ground lead (5) on bracket (12) with screw (6) and two new lockwashers (7).
2.
Install five screws (8), new lockwashers (9), and washers (10) on bracket (4).
3.
Install T/A panel (13) on bracket (4) with four screws (11), eight washers (3), and four new lockwashers (2) and
nuts (1).
4.
Connect wiring harness plug (14) to engine T/A panel (13).
Change 1 21-50
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