3. ENGINE DOES NOT START WHEN ETHER STARTING AID IS USED IN COLD WEATHER (CONT)

TM 9-2320-364-20-2 2-1062 3. ENGINE DOES NOT START WHEN ETHER STARTING AID IS USED IN COLD WEATHER (CONT). Engine block temperature less than 55F (13C). Cab heater operates indicating circuit breaker CB15 is OK. Ether supply bottle not empty. Ether hose and fittings OK. Ether start solenoid faulty. Ether start solenoid not grounded. Wire 1487 faulty. Ether start switch faulty. Wire 1036 faulty. Ether start thermostat faulty. Wire 1926 faulty. KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Continuity test. STE/ICE-R #91. If continuity is not measured at connector MC23 terminal B, the ether start solenoid will not operate. YES NO Repair wire 1435 (see schematic Fig 2-23) or notify DS Maintenance. Verify repair, go to Step 9 of this Fault. 4. Is continuity measured between wire 1435 at ether start solenoid harness connector MC23, terminal B and a known good ground? Replace ether start solenoid (Para 4-18). Verify repair, go to Step 9 of this Fault. 3. Go to Step 5 of this Fault. YES Engine block temperature less than 55F (13C). Cab heater operates indicating circuit breaker CB15 is OK. Ether supply bottle not empty. Ether hose and fittings OK. Ether start solenoid faulty. Ether start solenoid not grounded. Wire 1487 faulty. Ether start switch faulty. Wire 1036 faulty. Ether start thermostat faulty. Wire 1926 faulty. KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Voltage test. STE/ICE-R #89. If 22 to 28 vdc are not present at connector MC23, terminal A, the ether start solenoid valve will not operate. WARNING Are 22 to 28 vdc measured on wire 1926 on ether start solenoid harness connector MC23, terminal A? NO Read WARNING on Page 2-1063