Lawn sweepers are a way to pick up leaves and small debris from your lawn using your lawn tractor. Just like push mower wheels, lawn sweeper wheels will need replacing from time to time. The wheels on the lawn sweeper are usually made of a molded resin and replacements include the rim as well as new washer and retaining cotter pin. You can purchase replacement wheels from the manufacturer or at home improvement centers.
Lift the side of the sweeper that you are changing the wheel on and slide a couple pieces of wood under the axle. Gently lower the sweeper to allow the axle to rest on the wood, keeping the wheel off the ground.
Pry off the hub cover cap on the center of the wheel hub with a flathead screwdriver. Straighten the end of the wheel axle cotter pin, securing the wheel to the axle with a pair of needle nose pliers.
Pull the cotter pin out of the axle with the needle nose pliers. Slide the washer away from the wheel and off the axle. Pull the wheel away from the rear duct cover and off the axle. Watch for the bushing sleeves that are inside the wheel hub. You will need these when installing the replacement wheel.
Place the bushing sleeves over the axle and slide them against the rear dust cover. Slide the replacement wheel over the axle and bushing sleeves.
Slide the washer over the axle and insert the retaining cotter pin into the axle. Bend the ends of the cotter pin away from each other to lock the pin over the axle. Snap the hub cover cap back over the center of the wheel.