How to disassemble a Marx 490 locomotive
Disassembling a Marx 490 locomotive isn’t too difficult, but it’s very different from other Marx locomotives.
Once you take one apart, though, you’ll see why it was designed how it was. It was Marx’s lowest-cost locomotive, and it could be assembled without tools, so the labor costs were minimal.
For that matter you only need one tool to take it apart, and since there’s so little in it that can break–not even a headlight–you can find anything you would need to service it at the nearest hardware store or auto parts store.