A couple of days ago,I blew out my drive way after about an 11 inch snowfall in Green Bay,WI.Everything worked fine. Then the snowplow went through.I fired up the old Simplicity again and went to clear the new mess. I went to push down the auger lever down and it was real stiff. I pushed it down anyway but it would not engage. Can someone out there tell me what this could be and how to fix it? Your help would be greatly appreciated. Thanks,Jeff