780 of RWE Power (formerly Rheinbraun) seen parked at the end of the sand unloading track at Hürth-Knapsack (south west of Cologne) on 18 August 2007. This kind of vehicle is called "Pflugrücker" in German, it is used to shove the sand dumped by side-dump gondolas away from the track and down the scarp. The vehicle is obviously self-propelled and powered electrically (as well as the overburden trains which deliver the sand), note the two pantographs. The cab is mounted laterally in the middle of the vehicle. Maybe it fits into the loading gauge when the blades are removed, but it seems to be used at this location permanently. Some sections of the track are equipped with a third rail, probably remains of the time when Rheinbraun also operated narrow gauge trains (900 mm).
Digital photo by Christoph Schmitz (christoph.schmitz2@post.rwth-aachen.de)