The filter housing is usually placed underneath the vehicle, and the filter housing must be resistant to salt corrosion. Filters Diesel Systems Diesel fuel injection pump and is sucked through the swinging fine filter to the pump, high pressure regulator. At the bottom of the fuel pump is the primary filter for the detention of large dirt particles sizes. The filter element is located in a transparent casing, which also performs the function and dehumidified. Since the weight of water is greater than the weight of diesel fuel, then it is going and is visible at the bottom of a transparent body. Water must be disposed of in accordance with the instructions.
Finer filtration inherent 'Duplex' (double) filter, which has two filter elements, one for the detention of large particles, and another – for particles less than 2 microns – a thin filtration. Filter for diesel fuel is usually placed at the highest point in order to hold the air bubbles that prevent supply of diesel fuel into the system. To prevent this, you need to unscrew bolt at the top of the filter and let the air gathered. In some versions of fuel system is the automatic determination of the presence of water in the fuel; in achieving an acceptable level of water in the filter on dashboard warning light starts flashing. To reduce the possibility of condensation of water in the tank, we recommend completely fill the fuel tank at the end of the day or week, and the airspace above the fuel is minimal. The less air in the fuel tank, the less condensation may form. In the winter fuel suppliers offer a 'winter' diesel. A certain amount of fuel added to diesel fuel to reduce the possibility of the formation of paraffins (wax precipitation in the form of flakes).
The crystallization of paraffins at a temperature below-20oS or even higher, with chilly winds 20oS. The design of some filters heated components are installed and a thermostat that allows you to lower the temperature of the formation of paraffins. In the case of the formation of paraffins, it is necessary to replace all filters. Fuel filter element traps particles size from 5 to 10 microns.