Guys - anyone know what the hydraulic pressure should be on a Fiat Allis 645B. We built a grapple for it and don't seem to have much clamping force so we got checking and are only getting about 1600psi. This seems low to me but maybe not. If so can we shim the relief valve a little? We don't have a manual for it yet but are going to get one. Thanks in advance.
Main pressure is 1750-1900 overload is 2150-2250 you should be able to adjust it with the screw in the main.
OK great... so not that bad then. Once we get the transmission out and rebuilt we'll have to adjust it up and see if that helps.