Well I went out for wood, and had the trailer hooked to the BX. I went over the hill cause there is a black locust that is leaning pretty good and I gave it a little shove,, nothing more than a little push,, no movement, I know the limitations of the BX. Up to the wood pile and I put the front blade down like always because thing are on a hill.. Start back up and the front blade will not move up or down, no down pressure no up pressure I thought maybe I blew a seal out inthe cylinder and there is a little bit of oil but nothing to speak of. Now when I started up there was a squeal that sounded like it was coming from the valve body, I assume tram and what ever is on the front comes off the same circuit. And thinking about it the hoses when the lever was moved didnt flex. Pulled the bade off got to the garage and checked fluid its good. So any ideas, maybe something letting the valve by pass, ice or something?