I have a 2005 MF1533 that came with FEL and hydraulics for a grapple. Now I have bought a MF1575 backhoe. It did not have any installation instructions with it. On the side of the transmission there are three hoses that go to the joystick valve for the loader/grapple. On the valve there are two joysticks - one for the loader and one for the grapple. I cannot figure out how to plumb in the hoses for the backhoe. I was told they have to be in series. Can someone help? Thanks Penny