TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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e15. AUDIBLE ALARM DOES NOT OPERATE START 1. WARNING Read WARNING on following page. KNOWN INFO TEST OPTIONS Some lights on lighted indictor display illuminate. POSSIBLE PROBLEMS Faulty audible alarm. Faulty dashboard cable assembly. Faulty lighted indicator display. Voltage Test or STE/ICE-R Test #89 REASON FOR QUESTION This question eliminates possible problems and determines where troubleshooting continues. NO YES Go to step 4 of this fault. KNOWN INFO Some lights on lighted indictor display illuminate. POSSIBLE PROBLEMS Faulty audible alarm. Faulty dashboard cable assembly. Faulty lighted indicator display. 2. Does audible alarm operate with terminal lug TL160 connected to a known good ground? TEST OPTIONS Operational Test REASON FOR QUESTION If audible alarm does not operate when terminal lug is TL160 grounded, audible alarm is faulty. NO YES WARNING Read WARNING on following page. Is 24 VDC present at terminal lug TL161? INITIAL SETUP Equipment Conditions Engine shut down (TM 9-2320-365-10). Air tanks drained (TM 9-2320-365-10). Tools and Special Tools Tool Kit, Genl Mech (Item 44, Appendix C) STE/ICE-R (Item 39, Appendix C) Multimeter, Digital (Item 22, Appendix C) Materials/Parts Wire, Elect, 50 ft (Item 77, Appendix D) Personnel Required (2) References TM 9-4910-571-12&P Replace audible alarm (para 7-35). TM 9-2320-365-20-1 2-358 Change 1