This is the gauge I put on my CK 30 .I thought about making it a removeable test piece = Why ? Piped it into the down hose , that way all I needed was a Hi- pressure 3/8" Tee the gauge and 2 bushings . Now by just going down with the bucket I can tell the pressure at any time . Looks like 2500psi . The bad news for me - I might have a cylinder leak past because with the bucket hhttps://www.tractorbynet.com/forums/images/attach/jpg.gifttps://www.tractorbynet.com/forums/images/attach/jpg.gif1/2 way up the gauge reads 900 - 1000psi ?