help me!!!

[aris285]

I have compressor screw grasso l-3 and do not have pressure of oil. I saw the pump and am ok. I in saw and the magnetic valves from inside and am ok. what other can happen?

[mbc]

I have not seen this type compressor but I worked with screw comp.
Do you have separate oil pump?
Check filter of oil pump.]
Check rotation of pump.
Pressurize system then check oil pump