ENGINE AUTOMATIC FIRE EXTINGUISHING SYSTEM FIRE DETECTION TEST AND ALARM POWER ON LAMP DOES NOT LIGHT WHEN MASTER SWITCH PANEL INDICATORS

ENGINE AUTOMATIC FIRE EXTINGUISHING SYSTEM FIRE DETECTION TEST AND ALARM POWER ON LAMP DOES NOT LIGHT WHEN MASTER SWITCH PANEL INDICATORS - TM-9-2350-267-20_326

TM-9-2350-267-20 Carrier Ammunition Tracked M992 (2350-01-110-4660) Manual
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ENGINE AUTOMATIC FIRE EXTINGUISHING SYSTEM FIRE DETECTION TEST AND ALARM POWER ON LAMP DOES NOT LIGHT WHEN MASTER SWITCH PANEL INDICATORS IS ON. All other electrical systems operate. (EFFECTIVE FOR VEHICLES 1 thru 344) Before troubleshooting AFES, check the following Make sure MASTER switch is set to OFF (TM 9-2350-267-10). Make sure engine AFES T/A panel Maintenance switch is turned to maintenance position (p 14-14.3). NOTE • Instead of using multimeter for voltage check, STE/ICE troubleshooting, INDIVIDUAL BATTERY VOLTAGE TEST-TEST 89 may be performed. • Instead of using multimeter for continuity check, STE/ICE troubleshoot- ing, TEST 91 maybe performed. WARNING Turn crew T/A panel Maintenance switch to vertical position and MASTER switch OFF before disconnecting any electrical wiring harnesses. Failure to comply may result in discharge of fire extinguisher cylinders, electrical shock and injury to personnel. NOTE Wiring harness 12352354 is an optional replacement for wiring harness 12351500. A Disconnect wiring harness 12351500 or 12352354 connector P1 from Engine T/A panel. B Place red lead of multimeter in socket D and black lead of multimeter in socket A. C Check for 24 ± 3 vdc. If voltage is indicated go to step U. If no voltage is indicated, to to step D. 2-281 Change 4 TM 9-2350-267-2

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