Most railfans never see these operating realities. If you can ever see such a thing, up close, (as they will allow for safety), it is fascinating.
That was something to see. So many points of interest: I got sore watching them break those bolts loose, that brings back memories (esp needing the cheater pipe) Adjustable counterweights are cool "We have liftoff" And a sense of humor When the job was done, is the rear truck essentially an A1A?
Have photos of a BNSF unit here undergoing the same procedure. Only a GP instead. All seemed to be going pretty good, until the truck fell off! Retainer clip broke! Instead of heading to Denver, for traction motor replace, it was now bad ordered for Alliance, NE for rebuild. What might have been a 30 minute job, turned into a bit over 3 hours!
Essentially. I can't tell, but it looks like they might have replaced the front axle. That would make it a 1B truck. They were unusual but not unheard of. Santa Fe 1 and 10 were rebuilt with home made 1B trucks in 1938 and about 1940.