We are having trouble with our bucket tilt back. Our 2076 has a joystick for the bucket/boom control. It seems to have no response as you pull the joystick toward the left and then it goes, but jerks. Boom and bucket tilt down act like normal, it is only when tilting the bucket back. This loader has 3800 hrs. on it now. I have contacted the dealer and talked with them, but they are not real sure what is causing this. Is it time to replace the joystick valve body or is there something else I should be looking at. thanks Jason