Answer: Maintenance should be performed after the air compressor is shut down and appropriate safety measures are taken. Small air compressors mostly use rotary oil fine separators, and their maintenance methods are the same as oil filters; The steps for built-in ones are as follows:
(1) Loosen the pipeline on the oil-gas separator cylinder, and remove the pipeline from the outlet of the pressure maintaining valve to the aftercooler at the same time, remember to ensure that it can be properly reinstalled.
(2) Loosen and remove the return oil pipe.
(3) Loosen the fastening bolts on the oil-gas barrel cover and remove the oil-gas barrel cover.
(4) Take out the oil fine separator filter element and replace it with a new oil fine separator filter element and gasket.
(5) Reinstall it in the opposite steps and tighten the bolts with a torque wrench.
(6) After the machine is turned on, re-tighten the oil-gas separator barrel cover bolts.
(7) Check that the differential pressure switch equipped with the oil fine separator on the oil-gas separator barrel is installed normally, and the preset value is 100kPa.
