2-306.24 Change 4
TM 9-2350-267-20
CREW AUTOMATIC FIRE EXTINGUISHING SYSTEM
I
FIRE DETECTION TEST AND ALARM
PANEL INDICATORS
CREW AFES MEGOMETER TROUBLESHOOTING PROCEDURES.
(EFFECTIVE FOR ALL VEHICLES)
The FAASV Automatic Fire Extinguishing System (AFES) Troubleshooting Aid is a test box and set of seven connecting cables, developed by HTL, to assist the FAASV
user in troubleshooting the FAASV AFES. Using the troubleshooting aid allows testing of both the crew and engine subsystems individually without the fear of accidental
discharge of fire extinguishers. This is accomplished by disconnecting the FAASV’S installed fire extinguishers from the AFES and substituting “dummy” simulation
fire extinguishers contained within the test box. Use of the troubleshooting aid speeds fault finding and helps achieve a more accurate fault diagnosis by allowing
maintenance personnel to take measurement at the test box. The troubleshooting aid allows the user to isolate an AFES problem without moving the projectile racks, saving
considerable time and effort. The troubleshooting aid should be used in conjunction with TM 9-2350-267-20 as the technical manual is used for reference in the following
troubleshooting procedure.
