I was field mowing yesterday and every thing was working fine. I stopped to Grease the u joints any lifted the brush cutter all the way up to inspect the blades. When I started the tractor and tried to lower the brush deck nothing happened. I have read other post on this issue and they all seem to point to the turtle/ rabbit knob or the rear remotes being engaged. I checked both and played with them and still nothing happened. It almost seems like something inside is broken and the linkage is no longer making the pump work. Has anyone faced this issue without it being one of the obvious issues.