I cannot get the 3469 coal car to dump its coal on the 397 coaling station. All 3 operations work with the controller...but the dumping of the coal from the car to the bin will not work. I am using the o gauge ground clip and the o gauge flat clip to the track beneath the unit...but nothing. the coal car will dump when it 's put on a UCS track...but the unit will not let me just put a UCS track underneath it...without taking the 397 apart and eliminating the bottom piece. Help!
Ed Roth