Vintage Disney Mickey Mouse Pull 'n Pop Train Popping Balls Pull Toy

Vintage Disney Mickey Mouse Pull 'n Pop Train Popping Balls Pull Toy. Mickey Mouse Train Pull "n Pop Toy with pull string. It is supposed to pop the balls while pulled along and rings chime. I couldn't get it to do it continuously--the wheels lock up after the first rotation. Great for a display item or possible can be repaired. Please see pictures.