i got a ih 3500a backhoe form a friend and changed the trans. filter because trans. wasn't working right and then lost the hydraulics. i can hardly get the bucket to raise and the hoe and the leggs dont work at all. when you try to lift the hoe you can see it try and then it stops and looks like it goes the other way. the bucket has a hard time going up, doesnt go up all at once have to work at it. you can rool the bucket but has no power. i put tractor hydraulic fluid in it because it has a hydrostatic transmission in it and i was told that thats what it took. does anyone have any other ideas that could be wrong. thanks