Since we only have a 15 lbs. turkey, I was workin' on the railroad at 6 AM for 2 hours before my wife woke up.
The project: getting the signal bridge on the outer loop (on the right side when watching the video below) to work:
The problem was that the red light (higher light) worked when the train arrived, but the green light (lower light) was not working before the train approached.
I think the cause was some dirt or debris prevented the triggering device from making good electrical contact keeping the green light from coming on. I tried to clean it using brushes and electrical contact cleaner leaving the triggering device in place under the track. That did not work. What worked was taking the trigger device out from under the track with the wires still connected, and then applying a little WD40 in the nooks and crannies of the triggering device using a tooth brush and paint brush.
The expression "it don't come easy" almost always applies whatever I do with the trains.
LOL, Arnold
