Hi, I have a VTC-30 we have had since new 1998. One day it did a tool change without putting the tool it had in the spindle away! Wow broke 4 fingers and damaged my virgin table and ruined two end mills. The problem is the shaft the lever rides on that locks and unlocks the tool in the spindle. Mazak retains this shaft with a little sheet metal plate with very little contact in the shaft slot. The retainer plate wore out letting the shaft slide out of its mounting hole. I water-jet a new plate with 180 degrees of slot contact in the shaft, that will never happen again. I have 3 extra plates I will never need. If you P.M. me your address I will drop one in the mail to you. First three get them. Check your machine out all you have to do is remove the fiberglass cover and open an easy access plate to look at this. Looking at the machine it will be on the left side of the spindle. The retainer plate is held on with two cap screws.
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