The micron rating and the location of a primary fuel
filter is important in cold weather operation. The
primary fuel filter and the fuel supply line are the most
common components that are affected by cold fuel.
Fuel Heaters
Note: The OEM may equip the application with fuel
heaters. If this is the case, disconnect an electric type
of fuel heater in warm weather in order to prevent
overheating of the fuel. If the type of fuel heater is a
heat exchanger, the OEM should have included a
bypass for warm weather. Ensure that the bypass is
operational during warm weather in order to prevent
overheating of the fuel.
For more information about fuel heaters (if equipped),
refer to the OEM information.
34 SEBU7833
Cold Weather Operation
Fuel Related Components in Cold Weather
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