Is this the four popping noises that work their way down the unit and come from each powered axle after the unit has been stationary for about 10 seconds and the doors are open giving an interlock onto the brake circuits that doesn't occour when brake application has been made by the PBC or Reversing lever, only when stopped in a station?I go to college every day, I take 3 trains. The last train is the 323, I'm curious as to what causes the popping noises when the train stops. It sounds like bursts of air to control pressure on the brakes but that's a guess.
Any ideas? Thanks!
I love the noises a 323 makes. It's the only nice thing about them though.
If an F1 car sounded like those things as is often said it would be retired within secondsI love the noises as well. For a entirely neutral point of view on 323s ask Ivo