9.Motor maintenance.
Based on the motor instructions for maintenance.
8. drive belt.
To adjust the degree of tightness every 2000 hours, every 4000 hours to check the wear and tear, https://www.timing-pulley.net/?s=laser+cutting+air+compressor&post_type=product according to deterioration decide whether to replace.
7, safety valve.
Every 4000 hours to check on if the action is sensitive.
6.Pressure valve.
Clean every 4000 hours, and check whether the opening pressure is regular.
because for oil-atmosphere compressors, the oil-water separator function: separates the essential oil from the dampness in the air flow and for that reason accumulates over an extended period of time and may affect the filtration effectiveness without the need to displace or clean the oil-water separator
5, coal and oil separator.
Every 4000 
hours have to replaced a fresh piece.
Otherwise the oil can make a impact of the cutting effect
4.oil filter.
Every 2000 hours to replace a new piece.
Every 1000 hours need check oil content nonetheless it need to replace the new oil after 4000 hours