TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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TM 9-2320-387-24-l REFERENCE lNFOf?MAllON When checking coil resistance, use an analog- type multimeter. For an accurate ohms reading, perform this check when the system is at room temperature. Heat will increase resistance, resulting in a higher ohms reading. Replace control valve (para. 8-25). CONTROL ENGINE COOLING CONTINUITY (RESISTANCE) MULTIMETER 1. Bet the vottmeter to an ohms scale of about 1 .OW ohms. 2. Connect the RED and BLACK leads to the connections stated in the question. 3. Be sure to read the correct scale. Less than 5 ohms indicates continuity. For an open circuit, the meter should peg full scale (needle all the way to the left). CONTROL VALVE ELECTRICAL CONNECTOR I VALVE u- NO STEP ELECTRICAL CONNECTOR 2-181