Steam locomotive in action

Driving a steam engine requires years of practice and apprenticeship. For those who might sit in the engineer's seat of a museum steam engine, and wonder what they actually did to run it, here's what you'd have had to do. In fact, sometimes you can still try this for fun on an engine simulator in railroad/railway museums. Grab the whistle cord, and read on to get her rolling, keep her on the track, and stop when the trip is over.

[edit] Steps

Push the reverser/Johnson bar forward - grip the very large lever that rises from near the floor in front or beside you, squeeze the release handle and shove it all the way forward, and let go of the release handle to lock it into place.
Open the cylinder cocks - find a medium size valve in front of you on the boiler, or a thin lever on the floor in front of you. Turn the valve all the way clockwise, or pull the lever back.
Turn the front headlight on - above you on the ceiling, there will be a large, flat, half-round box or on the side of the cab wall . Slide the knob on the round side of the box all the way to front.
Blow the about-to-move-forward whistle - there will be either a cable, cables or whistle handles, above your head or in front of you on the boiler. Pull down on the cable (or turn the lever) twice to make the steam whistle sound out two short blasts.
Release the engine brakes - two brass horizontal levers will be near your left hand. The top one must be moved from right to left to release the brakes on the engine.
Open the throttle to start the engine moving - the very long lever in front of your face is the throttle. Grip it firmly and give it a yank toward you. As you feel the engine move slightly, shove it back in most of the way, so that it does not gather speed too fast.

[edit] Tips

Visit a railway museum to try this on a simulator. It doesn't go anywhere but you'll probably experience the sounds, you'll get to pull the levers and you might even get vibrations depending on how far the display goes!
Some preservation railways, especially in the United Kingdom, provide special supervised courses during which enthusiasts may learn how to and actually operate a live steam locomotive. Be warned though - these are potentially expensive.

[edit] Warnings

Severe injury, death and litigation may result in attempting to operate an actual steam locomotive without certification. It is a violation of federal law to operate a locomotive without proper certification on public tracks, and probably a large theft of property, and trespass. Please use these instructions for your imagination, or train simulators.