TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
Page 747 of 1275
8-42 CIRCUIT ID AND ILLUSTRATION OF WIRING HARNESSES (M109A4UM109A5) NOTE Each electrical cable is marked with a wire-numbered metal tag attached to the junction of the terminal of the cable. All electrical circuits shown in schematics and wiring diagrams are identified by wire numbers listed in each area. See task sheets in this section, Appendix 1, and specific troubleshooting pages for detailed routing of wiring harnesses. See paragraph 2-13 for electrical repair kit data. LEGEND 1 2 3 4 5 6 7 8 9 10 11 15 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-extemal 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) Wiring harness 12260298 — From driver’s compartment/connector to portable instrument panel 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Wire 7 — Battery to ground Wiring harness 12260287— Bulkhead connector to driver’s compartment connector bracket Wiring harness 11594268 — bulkhead connector to driver's instrument panel Wire 68— Battery positive-to-negative connectors Wiring harness 12353402 — Driver's bulkhead-to- batteries wiring harness Wire 81 — From batteries to master relay Wiring harness 12268303 — Rectifier-to-voltage regulator Wiring harness 12353401 — Engine disconnect _ bracket-to-batteries lead assembly Wiring harness 12268418 — Engine instrumentation bulkhead connector-to-powerplant connector bracket Wire 82— From bulkhead connector to engine starter Wiring harness 10921380 — To headlight assemblies Wire 452 — Bilge pump relay to bilge pump Wire 29-31 — To fuel level transmitters Wires 76 — To fuel tank fuel pumps Starter to engine electrical disconnect — Wiring harness 12353072 8-102 TM 9-2350-311-20-1