Since we got the boat, I knew that somehow the dinette converted into a large berth. However I could never get the center post support to come apart. Last weekend I decided to do something about it. I soaked the ends of the support post in PB-Blaster, And then used a strap wrench to loosen them. Once I got it loose, the table top lifted right up. I now have a new convertible berth. I lubricated the post ends before reassembling the dinette, and hopefully, they will not freeze up again.