I have the Ridgid planner, ever since I have had the saw whenever I send the wood in near the lifting side I get a line in the wood? Any Idea why. Since I rarely have boards wider than 6" I ussually just use the other half of the planner. But what should I do to fix this. I thought about exchanging it at HD but really do not want to lug 85Lbs back upstairs and to the store?