pmiller
+1y
--------------------------------------------- Originally posted by 02ramon20s Ok, know im new to the Engine Driven system, and i just aquired one from a junk yard that im going to rebuild. Know here is the Dumb question. There are two lines that come off the top of the compressor. I know one is to be run to the air tank, but what about the other line, is it a return line or a oil line? If it is a oil line, where is the best place to run it to. Then my hopefully dumb last question, I know the system has a clutch, also i know the tank has a pressure switch, but what prevents the engine driven compressor from blowing up my air tank? Because the York only has a ground on it, so im guessing the the compressor may have a built in pressure switch or something. ---------------------------------------------One line at the top is going to be for your air intake. Put an air filter on that line. The other one. The discharge will go to your tank. The wire coming from the clutch should go to your pressure switch. The coil should be ground to itself through the compressor. Not all clutches will have two wires coming from them. Some do some don't. You should be able to stick some jumper cables to test and see if clutch is engaging. Ground the compressor with one cable and then touch the wire coming from the clutch to your hot or positive cable. It should click. You will probably see it move slightly.