i had to take the left wheel off to reinflate the tire, i put it back on, washer first, then spindle, it doesnt seem to line up, the teeth only catch a little bit of the spindle. Then the right side seems to do all the spinning. When i lift it up, both wheels spin, but not when on the lawn. i've tried adjusting the adjustment to no avail. The belt looks good & tightens up when clutch is engaged. Any suggestions?