ETHER QUICK-START CONTROLS

Figure 5-24. ENGINE RUN Switch Checks. - TM-9-2320-273-20_441

SOLENOID CANNOT Check engine coolant temperature gage. Check for voltage at circuit 51 terminal of ETHER switch. Check for voltage at circuit 51A terminal of ETHER switch. Check for voltage at circuit 51B terminal of solenoid. Check for voltage at circuit 51C terminal of solenoid. Check for voltage at terminal of ETHER temperature switch. BE HEARD TO CLICK WHEN ETHER BUTTON IS PUSHED

TM-9-2320-273-20 Truck 6 Ton 6x6 M939 M939A1 and M939A2 (Diesel) Manual
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TM 9-2320-273-20 5-9. ETHER QUICK-START CONTROLS. a. Description (fig. 5-26). The ether injection solenoid valve is opened to allow ether to flow from the storage canister into the intake manifold when the ETHER button is pushed and released and the ether temperature switch is closed (engine coolant temperature is less than 50°F (10°C). b. Troubleshooting Perform the steps in table 5-3 to isolate faulty components of the ether quick-start controls. Figure 5-26. Ether Quick-Start Electrical Circuit 5-30

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