As the title stated, my atc is experiencing a problem that just now popped up.

When activating the open cycle of the gripper, it takes now almost three seconds
and sometimes I even have to lightly rap the tool holder with a small plastic hammer.

I have visually watched the opening cycle and it appears that the gripper is either
not getting enough pressure from the air pot and or getting it quickly enough,
or there is something dragging inside that is keeping it from opening smoothly!

This is a 10 hp ATC Colombo spindle. The spindle has not been crashed but it has sat
idle for three years and we do have a lot of humidity here!

Any suggestions?

Mike