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TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download

Page 306 of 1275

TM 9-2350-311-20-1 3-3 TROUBLESHOOTING CHART — CONTINUED p. TRANSMISSION OIL TEMPERATURE INDICATOR TRANSMISSION OIL TEMP INDICATOR NEEDLE FAILS CIRCUIT — CONTINUED TO MOVE OR IS UNSTEADY; ALL OTHER GAGES OPERATE PROPERLY — CONTINUED CONTINUED FROM STEP B G 1. Reconnect lead 324 to TRANSMISSION OIL TEMP gage. 2. Disconnect battery ground leads. 3. Disconnect portable instrument panel wiring harness from portable instrument panel disconnect. 4. Place jumper wires from pin A to socket A (lead 27), from socket P (lead 459B) to socket C (lead 459). 5. Reconnect battery ground leads. 6. Turn MASTER switch ON and check TRANSMISSION OIL TEMP gage for reading. 7. If TRANSMISSION OIL TEMP gage shows a maximum reading, place a jumper wire from pin L (lead 324) to ground. 8. Check gage for reading. 9. Turn MASTER switch OFF. Does TRANSMISSION OIL TEMP gage show minimum when grounded, and maximum when not grounded? 1 Repair or replace lead 324 of portable instrument panel wiring harness (para 8-57). CONTINUED ON NEXT PAGE 3-206