Pulling A/C vacuum for first time

Okay, so i'm pretty clear on how to pull a vacuum just connect pump to air compressor. Pretty simple; what i'm unclear on and can't seem to get a simple and clear answer online is the compressor oil. I know there's really no way to know the current oil level and don't want to over fill it either. I have included pictures of everything including the can of pag oil if needed. I don't see a place on this pump for oil so not sure if it will pull any oil. Or do I need to add any oil before or after vacuum? Or just leave oil level as is? A/C in this car is no where near as cold as it should be and gets warm at idle which I was reading to check condenser fan which I plan on doing. I just would like to be clear on oil situation. Any input would be appreciated. Thanks