Thanks for the advice all. The scraper bar was basically right on ground at first. I loosened the skids, and then lowered the machine onto a ceramic tile and re-tightened it. That is still very low clearance, but I'm paved driveway so we'll see if it works. Either way, it was a real quick adjustment for even someone like me, total of about 2 minutes. If its still too low, we'll stack 2 ceramic tiles and do it all over!