Our 530C can't change tools. I called support and techs are 1-2 weeks out in South-eastern Wisconsin. We adjusted the tool change home position (position M5) where the arm will pass a .132 guage pin between the spindle face and loading sounds smoother, and we oiled and worked the spring knuckles on the arm and they are working smooth and feel just like the other mazak 500A-5X on the floor, but the machine is throwing cat40 tools in the cabinet occasionally and that sucks, because it's breaking the tools in the holders and scoring up the tapers of the holders by treating them like **** and throwing them around the cabinet.

The knuckle springs are a little weaker than our DNM5700 Doosan. It's too bad the machine can do all the other crap and just can't be dependable and trusted to change tools.