I recently purchased a vintage set to replace one that my Dad got me in 1958. I haven't had my hands on trains in almost 40 years so I'm admittedly clueless. The person who sold them to me said the loco worked fine. I set up the track and connected the transformer and nothing is happening when I try to get it to go. The light does not light up. The tender does whistle so I know there's power going to the track. The engine is spotless. I doubt if was used too much in the past 51 years. The set was complete in the original box and individual boxes with all the paper work and the oil and spoke pellets. So, I don't believe there's anything drastically wrong with the thing. It's near mint. Is there something I am overlooking in the setup? Any help would be appeciated.