TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
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TM 9-2350-311 -20-1 8-43 POWERPLANT WIRING HARNESS (M109A2/M109A3) This task covers: a. Removal b. Disassembly/Repair c. Assembly d. Installation Applicable Co nfigurations M109A2/M109A3 Tools General mechanic’s tool kit (item 64, Appx H) Materials /Parts Electrical tape — black (item 62, Appx D) Equipment Conditions Air intake grille opened (para 11-8) Batteries disconnected (para 8-28) Engine compartment access cover removed (para 11-5) Transmission access doors opened (para 11-7) NOTE On vehicles with engine model 7083-7396, connectors 14, 15, and 16 are part of connector 22 and are used for the flame heater system. On vehicles with engine model 7083-7391, connectors 14, 15, and 16, are part of connector 22 and 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 12 13 Low level coolant indicator Low level coolant indicator Transmission oil temperature transmitter Transmission oil high temperature switch Transmission oil low pressure switch Transmission oil pressure transmitter Engine coolant high temperature switch Engine coolant temperature transmitter Starter motor solenoid from starter relay Engine oil low pressure switch In-tank fuel pump and generator system relay switch Engine oil pressure transmitter Starter motor solenoid from master relay 352B 352A 324 509D 509C 321 509A 33A 14B 509B 76B 36 82 Connector Wire No. Electrical Lead To: No. 14 15 16 17 18 19 20 21 22 Flame heater ignition coil (engine model 7083-7396) or glow plug controller (engine model 7083-7391) Flame heater air pump (engine model 7083-7396) or glow plug controller (engine model 7083-7391 ) Flame heater solenoid (engine model 7083-7396) or glow plug controller (engine model 7083-7391) Not used Master circuit wiring harness Starter cable connector 486 486 486A 588 1226810 82 Rectifier connector 500, 501, 502, 1, and 3 Alternator connector 500, 501, 502, 1, and 3 Flame heater connector (engine model 7083-7396) or glow plug controller (engine model 7083-7391 ) 486,486, and 486A 8-104