TM-9-2350-311-34-1 Maintenance Manual for Volume 1 M109 Hull Download
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TM9-2350-311-34-1 7-3 CIRCUIT IDENTIFICATION AND ILLUSTRATION OF WIRING HARNESSES (M109A4/M109A5) LEGEND 1 2 3 4 5 6 7 8 9 10 11 NOTE Electrical cables are marked with wire-numbered metal tags attached to junction of the terminal of cable. All electrical circuits shown in schematics and wiring diagrams are identified by wire numbers listed in each area. Wiring harness 12268308 — Alternator to rectifier Wire 82— From master relay to wire 82/49 Wire 27B — From wiring harness 12268418 — Engine instrumentation bulkhead connector to powerplant connector bracket wire 2 — From voltage regulator to wire 81 Lead 12268304 — From bulkhead connector to slave start receptacle (wire 49) and to circuit breaker panel (wire 10) Wiring harness 12268308 — From bulkhead connector to engine instrumentation Wiring harness 10925829 — From accessory control box to heater fuel pump and personnel heater Lead 12268419 — Bulkhead to override switch lead Wiring harness 12353400 — NATO slave start- to-external power receptacle wiring harness Wiring harness 12352794 — Ventilated facepiece system wiring harness Lead 12268304 — From circuit breaker to: 12 Slip ring segment board (47) 13 Telephone terminal (21 and 22) 14 Accessory control box (37 and 38) 15 Wiring harness 12260298— From driver’s compartment/connector to portable instrument panel 16 Wire7— Battery to ground 17 Wiring harness 12260287— Bulkhead connector to driver’s compartment connector bracket 18 Wiring harness 11594268— bulkhead connector to driver's instrument panel 19 Wire 68— Battery positive-to-negative connectors 20 Wiring harness 12353402— Driver’s bulkhead- to- batteries wiring harness 21 Wire 81 — From batteries to master relay 22 Wiring harness 12268303— Rectifier-to-voltage regulator 23 Wiring harness 12353401 — Engine disconnect bracket- to-batteries lead assembly 24 Wiring harness 12268418— Engine instrumentation bulkhead connector-to- powerplant connector bracket 25 Wire 82— From bulkhead connector to engine starter 26 Wiring harness 10921380— To headlight assemblies 27 Wire 452— Bilge pump relay to bilge pump 28 Wire 29-31 — To fuel level transmitters Wires 76— To fuel tank fuel pumps 29 Starter to engine electrical disconnect — Wiring harness 12353072 7-6