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 on the deterioration, according to deterioration decide whether to replace.
7, safety valve.
Every 4000 hours to check if the action is sensitive.
6.Pressure valve.
Clean every 4000 hours, and check if the opening pressure is regular.
because for oil-air compressors, the oil-water separator function: separates the essential oil from the dampness in the air flow and for that 
reason accumulates over a long period of time and will affect the https://www.ever-power.net/?s=laser+cutting+air+compressor&post_type=product filtration effectiveness without the need to replace or clean the oil-water separator
5, oil and gas separator.
Every 4000 hours have to replaced a fresh piece.
Otherwise the oil will make a influence of the cutting effect
4.oil filter.
Every 2000 hours to replace a new piece.
Every 1000 hours want check oil content nonetheless it need to replace the brand new oil after 4000 hours