I recently upgraded from a single phase Powermatic-Millrite vertical mill that served me well for about 10 years to a step pulley Bridgeport with a vfd on it. After removing the x axis power feed and shortening the lead screw to return it to "stock manual" I removed the table to have a look inside. I found that both of the plastic supply oil tubes for the lead nut had broken ( brittle ). Before I start breaking things, can anyone advise me on how to remove the brass oil ports that are attached to the lead nut casting ?
Once removed, are the ports marked for size?, or can someone tell me what size I'll need to replace them with if the can't be saved ?
Once removed, are the ports marked for size?, or can someone tell me what size I'll need to replace them with if the can't be saved ?