TM 9-2350-287-20-12-19. TROUBLESHOOTING CHART (continued).v. AFES, ENGINE (continued).The FAASV Automatic Fire Extinguishing System (AFES) Troubleshooting Aid is a test box and set ofconnecting cables, developed by HTL, to assist the FAASV user in troubleshooting the FAASV AFES.sevenUsingthe troubleshooting aid allows testing of both the crew and engine subsystems individually without the fear ofaccidental discharge of fire extinguishers. This is accomplished by disconnecting the FAASV’s installed fireextinguishers from the AFES and substituting “dummy” simulation fire extinguishers contained within the testbox. Use of the troubleshooting aid speeds faultfinding and helps achieve a more accurate fault diagnosis byallowing maintenance personnel to take measurements at the test box. The troubleshooting aid allows the userto isolate an AFES problem without moving the projectile racks, saving considerable time and effort. Thetroubleshooting aid should be used in conjunction with TM 9-2350-287-20-1 and TM 9-2350-287-20-2 as thetechnical manual is used for reference in the following troubleshooting procedure.FIGURE 2ENGINE COMPARTMENT TEST SETUP2-337
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