My brother has a 1530 case skid steer. He recently had the fitting from the filter housing to pump crack. He had replaced the fitting and it now experiencing a problem with the lifting on the lift cylinder and the tilt cylinder (slow and not able to pickup much) However the down force of the lift and tilt work fine (lifting front wheels off with little effort). I am believing the pump is fine as half the system work fine. The lift and tilt valves are separate. Has anyone run into this before?? Please help.