TM-9-2350-247-10 Operator Manual M548A1 M548A3 Tracked Cargo Carrier Download
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TM 9-2350-247-10 OPERATE ENGINE COOLANT HEATER KIT (M548A1) — Continued 0040 00 NOTE The coolant shutoff valve should be opened only during operation of the engine coolant heater. The coolant diverting valve may be left open at all times. 5. Press the indicator light housing. If the light glows, you know you have power to the heater controls. If the light doesn’t glow when you press the housing, notify unit maintenance. C A U T I O N Overheating will damage the batteries. Don’t use the engine coolant heater if the temperature is above -25 F (-32 C). Make sure both manual shutoff valvesare open before you start the heater. If coolant doesn’t flow, the heater will be damaged. 6. Hold RUN-OFF-START switch to START until indicatorlight comes on. Then move switch straight to RUN without stopping in the OFF position. 0040 00-2