Operation and maintenance manual

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ColdWeatherOperation
Starting Aid Requirements
Use the following chart as a reference for required cold weather starting aids:
Operation in ambient temperatures below 0°C [32°F] can require special consideration be given to
engine starting. At temperatures below 0°C [32°F], operate the engine at moderate speeds for 5 minutes
before full loads are applied.
Winterfronts
Winterfronts can be used on a vehicle equipped with
charge air cooling (CAC), but must be designed to partially
cover the frontal area of the cooling system. A minimum of
120 square inches (11 in x 11 in) of frontal area must be left
open to air flow for the CAC to function correctly.
Shutters
Installations of CAC engines with shutters also requires an
intake manifold air temperature switch to open the shutters
to prevent excessive intake manifold temperatures. This
prevents engine damage due to high intake manifold
temperatures as a result of blocked air flow across the CAC.