Check for correct oil level at the ll plug location on the compressor. The oil level is full when oil is at the bottom of the threads in the ll plug hole. Check for oil purging from the air dryer. Refer to the image below as an example.
[pdf] High efficiency oil-free compressor Air-end ● The first and second level materials are stainless steel; ● High rotary speed SKF bearing; ● Special coating,270℃ temperature resistance; ● Oil jacket cooling,No scaling or dew coagulation risk; ● High precision synchronous gear. Efficient suction system
[pdf] This manual describes the safety precautions, structure and functions of all systems and components, as well as the operation and maintenance methods for the KHE series rotary screw air compressors. The owner and operator shall read the manual carefully.
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