Hello, I am new with milling, just used to turning on Okumas. Got a used Okuma Cadet V4020 from an auction. To get it in to the shop I needed to remove the Z-axis motor because of the ceiling Hight. Now i have problems with the ATC. Trying to do a manual tool change, if I push the button either ADVANCE or RETRACT the magazine runs into the retract position till it hits the limit switch (It is near the limit switch anyway), but why would it run into retract if I push the advance button?