1. Tire Pressure: Make sure the tire is properly inflated to the recommended pressure. Underinflated tires can cause the tire to rub against the mower deck or other components, leading to it locking up.
2. Brake Issues: Check the brake system to ensure it's functioning correctly. A stuck or seized brake caliper or a faulty brake cable can prevent the tire from rotating freely.
3. Loose or Damaged Wheel Bearings: Worn-out or damaged wheel bearings can cause the wheel to lock up. Inspect the wheel bearings for any play or damage, and replace them if necessary.
4. Bent or Damaged Axle: A bent or damaged axle can cause the tire to rub against the mower deck or other components, resulting in it locking up. Check the axle for any damage or misalignment, and replace it if necessary.
5. Mechanical Obstructions: Look for any debris, such as grass clippings or small objects, that may have become stuck in the tire or around the wheel, causing it to lock up.
6. Transmission Problems: In some cases, transmission issues can also cause the rear wheels of a riding lawn mower to lock up. Check the transmission for any unusual sounds or if it's unusually hard to shift gears.
If you've checked these potential causes and still can't resolve the issue, it's best to consult a lawn mower repair professional for assistance.
