overheating-chicago-pneumatic

I have a Chicago pneumatic rotary screw air compressor. I recently did a service on it and after words it started over heating. I changed outside filters, air filter, oil filters, oil, seperator and greased motor. I checked the fins of both of the coolers and they are clean. I have checked the oil level multiple times and checked to make sure duct work is correct. It\'s getting to about 212F. I need help.