Aut cum scuto aut in scuto
Probably replacing the steel "tire" on the driving wheel. Heat 'em up and slip it on.
its one of those cases where you have to do all the drivers at the same time so all the drivers have the same contact pressure with the track. makes one wonder what the coefficient of friction is with steel track and iron tires with 100,000lbs pressing down.
Yup. That photo looks pretty recent, I'm curious to know where it was taken. A bit more detail on the process at about the 16:00 mark in this video---https://www.youtube.com/watch?v=M4BWsYbJROQ
I would say a grease or oil fire.
Very cool video-thanx for that
ahh. Heat treating so it expands then letting it cool, so it fits.