Our dog wheelchairs require very little maintenance. Once adjusted correctly, you shouldn’t have to adjust the chair again. Once the receptors on the shoulder bar are adjusted, and after we see photos, a dab of loc tite can be placed on the bolts to lock them in place. The only maintenance that you should have to do is place a little 3 in 1 oil in the wheel bearings if you spend a lot of time in the water. The aluminum frame is stain resistant. And any scratches on your wheelchair can be buffed out with a fine grade steel wool. The saddle and harness can be hand washed in cool water, mild soap. Hang to air dry. Depending on your dogs activity level, the saddle and harness, as well as tires might need to be replaced due to normal wear and tear. We are happy to offer these items at a discounted rate.