When I replaced the pedestal on my past MH, there where four bolts that went through the floor. The bolt end was exposed just behind the front wheel well and then of course the nut part was inside. You should be able to undo the nuts but you will have to make a decision as to what to do with the bolts. Either put a large washer and re nut or get underneath and remove. A third you may be able to just drive the bolts out so they fall on the ground. You will have to look and see where they are in relation to the underside of your coach.
Good Luck
