TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
Page 394 of 1760
TEST OPTIONS REASON FOR QUESTION If battery(ies) is unserviceable, 12 vdc circuits will not operate. KNOWN INFO POSSIBLE PROBLEMS Service drive lights OK. Circuit breaker CB70 OK. e4. 24 VDC CIRCUITS DO NOT OPERATE START 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) Tester, Antifreeze and Battery (Item 41, Appendix C) Goggles, Industrial (Item 15, Appendix C) Gloves, Rubber (Item 13, Appendix C) Apron, Rubber (Item 3, Appendix C) Socket Set, Socket Wrench (Item 34, Appendix C) Wrench, Torque, 0-200 lb-in. (Item 58, Appendix C) Wrench, Torque, 0-175 lb-ft (Item 57, Appendix C) Wire, Relay Test (Item 9, Appendix E) Materials/Parts Ties, Cable, Plastic (Item 76, Appendix D) Dispenser, Pressure Sensitive Tape (Item 21, Appendix D) Wire, Elect, 50 ft (Item 77, Appendix D) Lockwasher (2) (Item 91, Appendix G) (100 AMP) Lockwasher (2) (Item 66, Appendix G) (200 AMP) Lockwasher (4) (Item 92, Appendix G) (200 AMP) Personnel Required (2) References TM 9-6140-200-14 TM 9-4910-571-12&P WARNING Read WARNING on following page. Are batteries serviceable? 1. NOTE Battery Specific Gravity Test NO Charge battery(ies) (TM 9-6140-200-14) or replace battery(ies) (para 7-46). YES TM 9-2320-365-20-1 2-258 Change 1 Perform electrical troubleshooting e1. Circuit Breaker Does Not Operate on circuit breaker CB70 prior to beginning this task. Remove and install plastic cable ties as required. Faulty relay K2. Faulty master power switch. Faulty dashboard cable assembly. Faulty 100 AMP reverse polarity relay. Faulty 100 AMP reverse polarity relay to power distribution panel (PDP) 24 VDC cable. Faulty battery to 100 AMP reverse polarity relay 24 VDC cable. Faulty 200 AMP reverse polarity relay. Faulty 200 AMP terminal block. Faulty battery to 200 AMP terminal block 24 VDC cable assembly. Faulty 200 AMP terminal block to reverse polarity relay 24 VDC battery cable. Faulty 200 AMP terminal block to reverse polarity relay 24 VDC load cable. Faulty 200 AMP terminal block to power distribution panel (PDP) 24 VDC cable.