The Bernina Overlocker Mast is telescopic. Pull it up to use the overlocker. Push it down when you store it away. With all this push me pull you going on, the mast will sometimes break. The walls are thin and they kink and even split. So if you’re in need of a replacement, here it is. There’s a screw that fits into the bottom of the mast. To see it, you may need to place your overlocker gently on its side. Take care when pushing the thread guide back in place.
This Bernina overlocker mast fits most models.