Putting away the camper following our last trip and as I was cranking the top down it got harder and harder to crank. It is a goshen lift on a 98 Damon Camplite camper with a DBL brake winch. The winch began to squeak and squeal as I canked the top down, sort of felt like there was gritty sand in the winch mech. It felt like the brake was locking up more and more the lower I went. I could reverse and go back up with no issue or noise. I took a look at the winch but didnt see anything out of the ordinary. I am assuming there is some type of a friction clutch but I am not familiar with this type of winch. Is there anything I can clean or adjust? Any thoughts on what else I should be checking?