The air filter is a part to remove the airborne dust and dirt. The clear air after filtering will come into the compressor air end for compressed. Because the inner compressor allows particle smaller than 15μ to be filtered out, if the air filter element is blocked or broken, particles larger than 15μ will come into the inner cycling of screw air compressor, it will short the service life of air filter element and oil-gas separator element. It will also allow many large particles come into the bearing bore directly to accelerate the wear of bearing and enlarge the clearance of rotors, leading to compression efficiency greatly reduced.
1. It is better to maintain the air filter every one week. Unscrew the screw on the cover and take out the air filter element. Blow off the dust on the surface of air filter element from inside to outside by 0.2-0.4Mpa compressed air, clean the dirty inside the air filter cover and then install the air filter element. Pay attention to make sure the sealing ring on the head of air filter element tightly to the inner end surface of air filter. The air filter maintenance on the diesel engine of diesel driven screw air compressor should be done at the same time of compressor air filter element maintenance. The maintenance steps are the same.
2. Normally the air filter element should be changed every 1000 to 1500 hours. It is suggested to change the air filter element every 500 hours when the compressor is used in very harsh environment, such as mining, ceramics factory, cotton spinning mill, etc.
3. When cleaning or changing the air filter element, please pay attention to avoid any foreign matter entering into the air inlet valve.
4. Check whether there is any break on the air inlet extension tube, whether there is any loose and leakage on the connection from extension tube to air inlet valve. Repair or changing it when found it.