TM 9-2350-247-10OPERATE VEHICLE COMPARTMENT AND CARGO HEATER — Continued 0031 003. Hold the RUN-OFF-START switch until the indicator light comes on. Then move the switch straight to RUN withoutstopping in OFF position.NOTEWhen using DF-2 fuel, set the HI-LO switch on HI only, and run for 1-3 minutes beforeswitching to LO.4. Select the high or low heat with the HI-LO switch. The heater will always start on low heat no matter how the HI-LOswitch is set, and will go to high after it starts if the switch is at HI.5. If the heater doesn’t start, try again. If it doesn’t start in three tries, troubleshoot heater (WP 0055 00).6. Move the RUN-OFF-START switch to OFF to turn the heater OFF. The heater will stop burning right away, but theblower will run until the heater cools off.OPERATE HEAT MANIFOLD CONTROL (M548A1)1. Move the control handle to the rear stop to direct warm air into the lower cab area.0031 00-2
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