TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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e18E. WATER TEMP GAGE DOES NOT ILLUMINATE Materials/Parts Dimmer Switch Test Wire (Item 20, Appendix E) Personnel Required (2) References TM 9-4910-571-12&P TEST OPTIONS Continuity Test or STE/ICE-R Test #91 START 1. CAUTION Read CAUTION on following page. Is continuity present from main light switch pin F to pin B? KNOWN INFO Circuit breaker CB70 OK. POSSIBLE PROBLEMS Faulty main light switch. Faulty dimmer switch. Faulty dashboard cable assembly. Faulty WATER TEMP gage. NO Replace main light switch (para 7-17). YES NOTE Perform Electrical System Troubleshooting e1. Circuit Breaker Does Not Operate on circuit breaker CB70 prior to beginning this task. REASON FOR QUESTION If continuity is not present, main light switch is faulty. INITIAL SETUP Equipment Conditions Engine shut down (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) TM 9-2320-365-20-1 2-380.18 Change 1