I have already flushed the system and all hoses and the coolant becoz why not right. When I took out the hoses there was an orifice tube in it but I forgot which direction did it go in so I have a couple of more questions, which way does the orifice tube gets put in? Does the head part not the long stem part of it goes in the detachable hose or the one coming out of the wall?

2)Also when running vacuum pump should I do it with compressor connected or otherwise.

3)I already filled the compressor with correct amount of oil, how do I add pad oil to the drier??

Thank you