1. As for diesel filter maintenance, if the upper and lower sealing rubber gasket and oil cover is lost, the fuel havn’t gone through the filter element ,but it will be filtered from the gap between the filter element and the filter cover into the filter element cavity, at this time diesel filter will lose the filter purgefuncation

2. Diesel filter tray and spring position can’t be reversed, or the oil hole of diesel filter will be in the open state, leading to fuel without filtration directly into the fuel injection pump

3. Sometimes as for the maintenance of fuel filter, open the filter and found its interior and filter element is particularly clean, without any impurities and moisture, so the using of fuel is very clean. As the filter paper loose material, caused by large pores, then the filter paper did not play a filtering effect.In the process of using fuel filter ,if you foundparts in the diesel engine wear seriously , there may be caused by poor filter element, you need to replace the new filter cartridge timely