Small Engines (Lawn Mowers, etc.): Snapper Riding mower, emery cloth, lug nuts

Question
How do I remove the rear tires from a front engine snapper riding mower? This model has no lug nuts but a key.

Answer
 Hello Jim:

I hate to say it but a Lot of PB Penetrating Catalyst and Heat.  Rust is going to be the Problem Here. The Rim Slides Off the Axle. Once you get it Off, Clean Both The Axle and the Rim where it Slides Onto the Axle with Emery Cloth or 440 Sandpaper. Before Putting the Rim Back Onto the Axle, Coat the Inside of the Rim with Never Sieze. This Makes Future Removal Easy. Hope this Helps. Let me know what Happens, Please.

 Good Luck

 Respectfully

 John