Hi With class 40 is normal when we are operating when we get out of the engineer seat the loco engine stop?
It has a dead man's pedal that activates/ deactivates automatically when you sit in the drivers seat, if you look down at your feet you can see it. It's a fail safe system that was used in the event that the driver became unconconcious and would thereby release the pressure on the peddle which in turn would stop the train.