The function of air filter element
The excavator engine needs to breathe a lot of air in the working process. If the air is not filtered, the suspended dust in the air will be sucked into the cylinder, which will accelerate the wear of the piston assembly and cylinder of the engine. If the larger particles enter between the piston and cylinder, it will cause serious "cylinder pulling" phenomenon.
This kind of situation often happens to excavators working in harsh environment, because the air filter is installed in front of the engine intake pipe to filter out dust and sand particles in the air, so as to ensure sufficient and clean air entering the engine cylinder.