I'm guessing that, like many TS players, you haven't read the manual. Having given up trying to actually educate others some years ago, I will simply quote from that document:
The HUD‐enabled version also performs several actions autonomously at the start, such as
turning on the dynamo, air compressors, cylinder cocks master, feedwater pump shut‐off
(for the exhaust injector), etc., so that the player can immediately begin using the HUD
without the need to initialize any of those controls using the keyboard or mouse.
The HUD‐enabled version has the expert automatic fireman enabled permanently (it cannot
be toggled off) ‐ this is because the HUD does not have the appropriate controls for an oilfired
steam locomotive. Therefore, with the HUD‐enabled version, the player assumes the
role of locomotive engineer and leaves the model's scripted expert automatic fireman to
take care of maintaining pressure and looking after that side of things.
This information appears on page 10 of the manual, along with instructions for selecting the self-starting version of the engine; I leave reading the rest of that information up to you. Of course, you're also welcome to continuing to grope through the darkness.
And, finally, I will take this opportunity to repeat one of the world's most basic and necessary mantras: When all else fails, read the instructions and, if that doesn't get the job done, try following them.
