Installation and use of air filters

When installing the air filter, whether the connection between the air filter and the engine intake pipe is made by flange, rubber hose or direct connection, it must be tight and reliable to prevent air leakage. Rubber gaskets need to be installed on both ends of the filter element. The wing-shaped nut for fixing the outer cover of the air filter should not be tightened too much to avoid damaging the paper filter element.

When maintaining the air filter, the paper filter element must never be cleaned in oil; otherwise, the paper filter element will fail and it is also easy to cause a runaway accident. When maintaining, only the vibration method, soft brush brushing method (brush along its folds) or compressed air reverse blowing method can be used to remove the dust and dirt adhering to the surface of the paper filter element. For the coarse filter section, the dust at the dust collection area, blades and cyclone tubes, etc. should be removed in a timely manner.

Even if the paper filter element is carefully maintained each time, it cannot fully restore its original performance, and its air intake resistance will increase. Therefore, generally, when the paper filter element needs the fourth maintenance and care, a new filter element should be replaced. If the paper filter element shows problems such as cracking, perforation or the filter paper coming apart from the end cover, it should be replaced immediately.

1. When in use, it is essential to prevent the paper core air filter from getting wet by rain. Once the paper core absorbs a large amount of moisture, it will increase the intake resistance and shorten the service life. In addition, the paper core air filter must not come into contact with oil or fire.
2. Some vehicle engines are equipped with cyclone air filters. The plastic cover at the end of the paper filter element serves as a deflector. The blades on the cover cause the air to rotate. Under the effect of centrifugal force, 80% of the dust is separated and collected in the dust collection bosom. The dust reaching the paper filter element is 20% of the inhaled dust, and the overall filtration efficiency is approximately 99.7%. Therefore, when maintaining a cyclone air filter, be careful not to omit the plastic deflector cover on the filter element