Using this dog wheelchair is easy. First, gently place your dog in the wheelchair and adjust the built - in harness to fit your dog comfortably. Make sure it's not too tight or too loose. When using it, start on flat and smooth surfaces to let your dog get used to the wheelchair. As for maintenance, regularly check the wheels for any debris or damage. Clean the frame with a damp cloth. Keep in mind that this is a used item, so it may have some normal signs of wear. If you notice any significant issues, it's best to get it checked. Also, always pick it up from the MSU Surplus Store as per the local pickup policy.