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#nikolaipotemkinso that it doesn't break the holes of the hubs and cotter pins# We will improve the walk-behind tractor so that it doesn't break the holes of the half-axles of the hubs and cutters. The solution is very, very simple - we eliminate the play on the cotter pin with washers. Let the theoretical physicists throw stones at me and shout that I contradict Newton's laws, etc., etc., but the holes on the hexagonal hubs are still broken into an ellipse!!!!!