I have an Ariens Deluxe 28 (921022) that i purchased new in 2011. Barely used it since i have an ATV with a plow and now a truck with a plow. Mostly for my sidewalks. This season i took it out of storage went to use it for the 1st time and i cannot get the wheels to lock at all. I have tried many different ways and still no dice. Pulled the bottom cover off and tried to adjust the cable but that seems to be engaging just fine. Can anyone shed some light on this?? The blower is worthless without both wheels locked!