We just got a 1996 Dutchman and we are already having a big problem. When we bought it it was open. Guy delivered it and we tried opening it this morning and now it is sitting there with the front part up and the bottom part down. At first it was going up fine and it became hard to crank. Started lowering only to find only the back was going down. Now we can't crank it either way... What can we do? Thanks in advance.