After the air filter is used for a certain time, the filter element will become dirty, and the intake resistance of the filter will also increase. When the intake resistance of the air filter increases to greater than the final resistance, the internal combustion engine will produce black smoke and insufficient power due to insufficient air supply. The user can determine the blockage of the air filter by looking at the maintenance indicator installed on the air filter. Once the blockage of the air filter occurs, it should be stopped immediately to clean or replace the filter element. How to clean or replace the air filter: Remove the main filter element from the air filter housing; Tap the end cover of the filter element to shake the dust off the filter element; Blow dry compressed air with a pressure of no more than 0.5MPa from inside to outside; The main filter element should be replaced with the safety filter element after cleaning the dust for 5 times; When the filter element is found damaged, the filter element should be replaced; The air filter with a dust collection box should clean the dust of the dust collection box.

Maintenance of wet filter type filtration: This device is mainly composed of metal filter impregnated with oil, and should be noted in use:
1, regularly wash the dust on the filter with diesel or gasoline.

2, assembly first with oil infiltration filter, to be excess oil drops after assembly. When installing, the cross skeleton on the filter plate of the cake filter should be overlapped and aligned, and the inner and outer rubber rings of the filter screen should be well sealed to prevent short circuit of the intake air.