Hi I have a Grasshopper 722D with a powerfold deck and it worked great until one day I went to raise up the deck a little bit and all it did was made a clicking noise. It was not even trying to raise up the deck, I don't think there is anything in the way that would be causing it to do this. But I do have 2 of the black plastic stops in it but that wouldn't be causing this problem. Is this a common problem? Are there any tricks that I should know about on how to raise it? and what parts do I need to buy if this is a common problem? I hope u guys can help me out! Thanks!