Manual

Parts

Replacement Parts - recommended by Tubalcain

Using A Milling Cutter

Wikipedia article regarding Feed Rates and Spindle Speeds

Troubleshooting

One of our 2 Bridgeport mills is not working.

Review

Lenny Wayne says - Since I can't tell exactly what all is going on in the video I have to start like I know nothing but that it's making that sound. First thing I would do is to remove the belt and run the motor with out it. If it still makes the noise I know it has something to do with the electric motor. If it Does Not make the noise after removing the belt it's something to do with the head. Look for anything that the pulleys could be rubbing on. Next, Try the following on both the Spindle and the Pulleys that drive the spindle. See if the pulley on the head can be moved up and down or is loose. Turn the spindle/pulleys by hand. Can you turn it by hand easily? Can you feel something in your hand when you turn it? Is it a grinding feeling? If so it is most likely a bearing inside the head. If you can't turn it by hand it's even more likely a bearing has seized up. It sounded to me like there is some bearing problems in the head. All you can do is try the above and if you find something wrong tear into it to see what needs replaced. And replace whatever is worn out and/or broken.