Volvo VN, Руководство оператора

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312 OPERATION
Fuel Tank Heater (Optional)
An in-tank fuel heater is also available. In-tank heaters use hot engine coolant to
warm the fuel. This prevents wax formation in the fuel during cold season operation.
These heaters are thermostatically controlled and will automatically raise the fuel
temperature to an optimum level.
Winterfront
Volvo Trucks North America does not recommend the use of winterfronts,
shutters or any other shield in front of the grille or radiator package under
normal circumstances.
Today’s electronically controlled engines are designed to operate in cold temperatures
without a winterfront. These devices, if not used properly, can cause higher exhaust
temperatures, power loss, excessive fan usage, failure of the charge-air-cooler and a
reduction in fuel economy.
Winterfronts are properly used in the wintertime during very cold weather. In these
cases, coolant and inlet manifold temperatures must also be carefully monitored and
controlled.
CAUTION
Failure to remove the winterfront
when temperatures go above severely
cold temperatures could cause severe
damage to engine, charge-air-cooler
and/or loss of fuel economy.
If a winterfront is used, it must conform to these specifications:
•
The grille coverage should be such that airflow through to the charge-air-cooler is
at a uniform rate over the entire area. This means that a single, small opening in
the winterfront is not acceptable.
•
Air passage must be distributed evenly across the grille and no more than 85%
can be covered.
Please see your authorized Volvo Truck dealer for Volvo recommended winterfronts.
Note: If there is engine or related damage that can be traced to an improperly used
winterfront, the warranty is no longer valid for those parts.