Explosion-proof oil-free air compressor lubricating oil why should be replaced regularly

After the oil is used for a long time, the following factors will affect the oil quality, so it needs to be replaced regularly:

1) metal chips dropped from the friction surface due to wear;

2) dust and other hard particles brought in by air;

3) there is no clear sand on the casting;

4) the paint layer on the parts falls off;

5) the lubricating oil will deteriorate due to water generated in the cooling process;

6) the temperature and other influences of the lubricating oil in the cyclic lubrication gradually reduce the performance of the lubricating oil.