I have a b6200 with a front loader and a 3 speed trans. Recently put on a new control valve for front loader and changed hydraulic fluid and cleaned the screen on the bolt on the right side of the trans. The front loader works great and smooth but now the 3 ph will not lift even its own weight except at full rpm's and it worked fine before all of this, is there another screen or filter located somewhere that i have missed or dont know about? any suggestions would be really helpful and appreciated Thanks.