Many thank m_c for the reply. Yes seems a lot I know butI am sure the tool changer should have a 100 PSI it has a sticker on themachine you see by the dial and I checked in the manual. If it is not obviousto me what I have when I take the plastic piece of I will post a photo. I wishI had you knowledge of building a control panel and I would not know how towork one if I had one let alone build one. I will Google hydrovane compressor.Perhaps you would keep any eye out for the photo if I get stuck!

Many thanks

Suesi