Quoted from cocomonkeh:
Started tear down and cleaning of my barn TZ today after I got it mostly running.
I was having this happen (yes, with the rest of the guide on it too ). I don't even know how to describe it to google it.
» YouTube video
Only switch that I can tell is not working is the left ramp exit. I think it worked during an early test, but I'm not sure. Continuity on the switch wires but nothing when I close it, even by hand tight.
I expect to have this running with minimal parts and a LOT of cleaning. Time to order bulbs though.
When you put the top of the trough on there there is a flap you can bend down slightly to guide the ball into place.
I also removed the rubber from that post because it still bounces it back sometimes.