Hi Andy,
es ist die 2te Pumpe im Austausch. Wieso die erste aufgegeben hat, weiß ich nicht. Vielleicht waren ein paar Lamellen verklemmt. Who knows...
In my opinion, the problem was not caused by a dry run, because I had added oil before starting the engine, and the pump was initially working but then failed after a short time.
On the other hand, you never know what kind of defect the pump might have had before. It's a replacement part with a label indicating 'remanufactured,' meaning it has been refurbished.
Whatever... it's working again

).
Regards,
Eike.