02-19-2010, 07:36 AM
andersley Wrote:Not sure about the second air line, but could be for the hopper doors, see below.I would imagine that in this case (just a guess) the second air line is for the hopper doors. If you would use train line air you would probably keep putting the train in "emergency" evey time you opened or closed a door.
![[Image: ?id=46774525&noresize=1]](http://images.fotopic.net/?id=46774525&noresize=1)
Charlie