sponserv - you are a little thin on provided information, so to be clear -
- You have located the lever that allows the seats to rotate?
- The mechanism at the base of the seat is releasing and allowing some movment or it is NOT releasing?
- If it is releasing the issue is the rear of the seat makes contact with the side of the coach and it won't rotate beyond a few degrees because of the interference?
If it is not releasing the base, you need to get in there and see how it releases and why it isn't, but I think it is the second problem. On most coaches you have to move the seat to its most forward position so that the rear of the seat sits over the center point of rotation so that it so it doesn't swing out as it rotates, and instead the front of the seat swings out in a wide arc.
This usually leads to interference at the front edge of the seat and the steering column, so you have to rotate the seat as it comes forward so the front corner passes the column at the same time as the rear corner clears the wall.
Next you usually have to tilt the front of the seat down as you do it, and lift the seat back up as straight as possible with the wheel tilted as flat as possible so the back of the seat clears the wheel.