TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
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TM 9-2350-311 -20-1 8-45 ENGINE DISCONNECT BRACKET-TO-BULKHEAD WIRING HARNESS (M109A2/ M109A3) This task covers: a. Disassembly/Repair b. Assembly M109A2/M109A3 Electrical tape — black (item 62, Appx D) Tools General mechanic’s tool kit (item 64, Appx H) Batteries disconnected (para 8-28) NOTE • For removal and installation of the engine disconnect bracket-to-bulkhead wiring harness, notify support maintenance. Ž On vehicles with engine model 7083-7396, connectors 4 and 11 are used for the flame heater system. On vehicles with engine model 7083-7391, connectors 4 and 11 are used for the glow plug controller system. Connector Wire No. Electrical Lead To: No. 1 2 3 4 5 6 7 8 9 10 11 Battery assembly to master relay Aeration detector-to-coolant indicator Aeration detector-to-coolant indicator Flame heater-to-flame heater switch (engine model 7083-7396) or glow plug controller-to-glow plug lamp (engine model 7083-7391) Engine oil pressure transmitter-to-engine oil pressure gage switch Engine coolant temperature transmitter- to-engine water temperature gage Transmission oil temperature transmitter-to- transmission oil temperature gage Transmission oil pressure transmitter-to- transmission oil pressure switch High/low temperature and pressure switches/transmitters-to-master warning light Not used Flame heater motor pump-to-flame heater switch (engine model 7083-7396) or glow plug controller-to-glow plug switch (engine model 7083-7391 ) 8-114 81 352B 352A 486A 36 33A 324 321 509 588 486 Connector Wire No. Electrical Lead To: No. 12 13 14 15 16 17 18 19 20 21 22 23 24 25 In-tank fuel pumps and generator system relay 76B Regulator cutoff relay coil energizer 27B Air cleaner blower motor circuit 415 Master switch voltage regulator lead 400-459B Engine starter circuit (starter relay bilge pump circuit breaker neutral safety switch) 14/14B Voltage regulator-to-master relay lead 2 Ground wire 3 Engine bracket disconnect connector Voltage regulator connector Starter relay connector Bilge pump circuit breaker lead Driver’s bulkhead connector Battery connectors Master relay connectors