The air filter is located on the right side of the engine compartment, that is, above the right front wheel. There is a black square plastic box connected by a thick soft rubber hose on the arm.

Air filter element is a kind of filter. It is generally used for air filtration in engineering locomotives, automobiles, agricultural locomotives, laboratories, sterile operation rooms and various precision operation rooms. The engine needs to absorb a large amount of air in the working process. If the air is not filtered and the dust suspended in the air is sucked into the cylinder, the wear of the piston group and cylinder will be accelerated. Larger particles entering between piston and cylinder will cause serious "cylinder pulling" phenomenon, which is particularly serious in dry and sandy working environment. The air filter is installed in front of the carburetor or intake pipe to filter dust and sand in the air and ensure sufficient and clean air in the cylinder. Following the principle of filtration, the air filter can include filter type, centrifugal type, oil bath type and composite type. Air filters commonly used in engines generally include inertia oil bath air filter, paper dry air filter, polyurethane filter element air filter, etc.

Operating principle of air filter:
With the filter medium as the main filtering method, when the air passes through the filter air filter, the filter paper will block the impurities in the air and stick them to the filter element, thus achieving the effect of air filtration. The main components of the air filter are the filter element and the housing. The air filter has a great impact on the service life of the car. On the one hand, if there is no filtering effect of the air filter, the engine will inhale a large amount of air containing dust and particles, resulting in serious wear of the engine cylinder; On the other hand, if the air filter element is not maintained for a long time during use, it will be full of dust in the air, which will not only reduce the filtering capacity, but also hinder the flow of air, resulting in too rich mixture and abnormal engine operation. Therefore, it is essential to maintain the air filter on schedule.