This 251 has its side armor cut shorter and was used post-war as a heavy crane in Göttingen (Germany). A makeshift solution of the local fire brigade. At a fuel consumption of 50 liter on 100 kilometers operating it was a costly enterprise...
The information and the picture came from the book: Historische Feuerwehr im Einsatz, Fahrzeuge und Brandbekämpfung/Udo Palitz. - Stuttgart: Kosmos, 1997, ISBN 3-440-07265-7
The picture is from the Göttingen firefighters archive.
Thanks Hanno for the information!