Hello I have a bridgeport VMC 3020 with a fanuc 21i control.

I am having an issue where air usage is constant. I can feel air coming from around the spindle making me think that there may be a stuck valve or bad gasket. I have the maintenance guide but am still having trouble finding where the air leak could be coming from.

I would like to find this as it is making my air compressor run all the time and I fear the compressor won't hold up if I leave an already proven program running over night.

Thanks for any help/advice. - Ed