With the top and side panels off the lx-865, I can see the linkages for the 2 boom lock cylinders that can project from the sides of the cab. I haven't had the boom up yet, but those boom locks don't want to come out when I twist on the handle for them inside the cab. Is there any other interlock on them to keep them in when the boom is not up yet? I lightly tapped one lock cylinder with a small hammer and it moved a little bit, so I am guessing the locks should be movable, but are just grimey and sluggish. Any ideas if I should try to free them up so that I can use them when I do get the boom up?