I remember there are little stainless 'tangs' on the main beam that bump into the hull there - they are only there to establish the initial hull position when reassembling...they're not actually attached to the hull.

BE SURE you have the boat out in the sun on a warm sunny day when trying to reinstall...it's hard to get the hulls back in position with a new trampoline. I tried putting my trampoline in the drier to loosen it up some but I could never keep it warm by the time I got it to the boat...had to wait for sunny day.