TM 5-2420-231-23-1
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ENGINE SYSTEM CONTINUED
Cooling System - Continued
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2. The thermostat is located inside the thermostat housing, which mounts on the cylinder head. The thermostat
controls the temperature of the engine coolant.
Figure 8. Thermostat Housing.
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Batteries
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Two 12-V batteries are located inside the compartment of the battery box and oil tank. The 12-V batteries connect
in series to produce 24 V for starting the engine and for powering the blackout lights. All other lights, controls, and
indicators operate on 12 V dc.
NATO Socket
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The NATO socket mounts on the battery box and oil tank. The NATO socket provides a means to jump-start the
engine.
Figure 9. Batteries and NATO Socket.
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