9.Motor maintenance.
According to the motor instructions for maintenance.
8. drive belt.
To adjust the amount of tightness every 2000 hours, every 4000 hours to check on the deterioration, according to wear and tear decide whether or not to replace.
7, safety valve.
Every 4000 hours to check on whether the action is sensitive.
6.https://www.ever-power.net/?s=laser+cutting+air+compressor&post_type=product pressure valve.
Clean every 4000 hours, 
and check if the opening pressure is normal.
because for oil-air compressors, the oil-drinking water separator function: separates the oil from the moisture in the surroundings and therefore accumulates over a long period of time and can affect the filtration performance without the need to replace or clean the oil-water separator
5, oil and gas separator.
Every 4000 hours need to replaced a fresh piece.
Otherwise the oil can make a impact of the cutting effect
4.oil filter.
Every 2000 hours to displace a new piece.
Every 1000 hours need check oil content however it need to replace the brand new oil after 4000 hours