So I've gotten really good at breaking things on my XJ2025H. My yard has a marshy area until it dries up in the summer heat. The grass gets really tall until then, and hides things to run into. This time I started to get stuck in the mud, so I raised the mower deck to help back out. I think I held it too long in the raise position, so now it won't lower. I can hear the whine when I briefly put it in the lift position, but it won't lower even with the tractor shut off. Is there a bleed valve or easy access to the 3 point internals? I can always pull the 2 cotter pins to lower the deck, but I wouldn't be able to raise it up if I needed it.