I wasnt talking about a 40 ton just a 2 ton my newest guy was working on today. His logic was that since it would only pull 24" following a compressor change well duh just leave the pump running must be dirty. Grinds my %^&$ and tickles me pink. His quages were about 5 pounds out of calibration too low and seal in the hoses hi connect was bad. The system was indeed tight though. Oh well live and learn and comp some time.
We do a lot of 100 ton plus stuff and even then we can pull most of them down in fairly short order with a proper pump.