Thomas & Friends (1984) : 12x2

Edward is told to take a brass wheel along the express line to the Waterworks, but opts to take the branch line so the people can see him. Although Edward is warned the line ahead is bumpy, he continues onwards as the school is nearby. When the wheel begins to tear the rope, Edward goes up Gordon's Hill, but then the wheel rolls off to the Smelters. Edward saves it just in time and has it chained on so it won't fall off.