>>6392549No collar breakage yet but glad to know it's something to watch out for. I was repairing a mis-driven(?) pin on his right shoulder. Pic related, at this point it's more or less back together but you can still see the gouge where the machine missed.
At least he was surprisingly easy to get apart to the point I could go at it with a pair of heavy pliers. Left some dings in the desk, but it's all good now.