I have a Murray riding lawn mower 11hp 38" and I do not know how to tighten the tension belt, how do I do this, or where is the screw for tightening it.

What symptoms are occurring. And which belt is causing a problem?

I have a Murray riding lawn mower (model no. 40702X92A). I need to know how to remove the rear tire to replace the tire. I've removed the carter pins and washer; however, the tire will not pull off the axel. HELP!