1.  When clean the filter element, it cannot use water or oil to avoid the oil water infecting the element. Check whether the filter element is fine after cleaning

2.  Clean and replace the filter element regularly. It should clean the filter element regularly according to the instruction of maintenance during the usage, so that I won’t increase the intake resistance because of too much dust that attached on the element, which will reduce the engine power and increase the oil assumption amount. If the filter element is damaged, it should replace timely

3.  Clean the inside of the filter housing and check whether the sealing surface, chip firm and weasand have crack, hole or damage

4.  If it needs to replace the filter element, try to select the original supplied filter element and do not use fake element

5.  Check whether all the sealing ring is in good condition. If there is any damage, aging and transformation or crack, it needs to replace

6.  Installing the filters element, cap and so on reversely, it can depend on screwing the related nut, bolt or clip and so on. It needs to install the sealing gasket of filter element and prevent the air from coming to the air clylinder without being filtrated