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4 minutes, 16 seconds

Steamtown's rangers receive a lot of questions about the Union Pacific "Big Boy" No. 4012. One of the most common questions is "what goes on up in the cab?" Join Ranger Alan as he provides a virtual tour of the locomotive's cab and learn just what a few of those red valves do!

Tire ring of fire
A mechanic lights a gas ring surrounding the steel wheel and tire of a steam locomotive

NPS Photo

Powerpoint Presentation

Replacing the Tires of a Steam Locomotive

In March 2007, we had the opportunity to capture images to create this PowerPoint presentation (1.53MB) which explains the process of how a steam locomotive's tires are changed.

Last updated: September 15, 2022

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150 South Washington Avenue
Scranton, PA 18503-2018


(570) 445-1898
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