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Spindle/brake problems with Bridgeport Jhead
Thank you for the reply. The good news is that my mill is working again. The bad news is that I don't know why. As I started getting ready to disassemble the head, I noticed that the spindle turned when I moved the gears. When I had first noticed it was working, I had tried it in...- CaptainNemo
- Post #5
- Forum: Bridgeport / Hardinge and USA Light Iron
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Spindle/brake problems with Bridgeport Jhead
Hello All, I have a Jhead round rod mill from the 40's. It was working fine, but now it seems there is no connection between the spindle and the motor. I went to remove the tooling in the collet and at first it was hard to turn, but then it would just spin, even with the brake engaged. It...- CaptainNemo
- Thread
- Replies: 4
- Forum: Bridgeport / Hardinge and USA Light Iron
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New to me Pratt and Whitney 12x54 lathe
On the plus side, she runs smoothly and quietly. Also backwards, but that'll be easy enough to fix- CaptainNemo
- Post #10
- Forum: Antique Machinery and History
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New to me Pratt and Whitney 12x54 lathe
I got everything set up and she is running, but I noticed two problems. 1. The right hand clutch release doesn't more far enough to stop the spindle. I'll move it until it stops, but then it will move again to the right and the spindle starts back up. If I use the left hand lever, it...- CaptainNemo
- Post #9
- Forum: Antique Machinery and History
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New to me Pratt and Whitney 12x54 lathe
Thank you all for your help. I can't wait to make some chips. We have mostly cnc equipment at work and some jet and Clausing lathes. At least without running, my p&w is a much better piece of equipment- CaptainNemo
- Post #6
- Forum: Antique Machinery and History
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New to me Pratt and Whitney 12x54 lathe
It came out of a machine shop that was running it on 3 phase, but I only have single phase in my shop- CaptainNemo
- Post #3
- Forum: Antique Machinery and History
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New to me Pratt and Whitney 12x54 lathe
Hello all, I just bought a lathe (and mill) at an auction. It seems well taken care of, but I haven't run it yet. I looked at the motor, but I don't see a motor plate. The serial number is 322. I'd like to know when it was made. I also need to know the motor hp so I can get the right size vfd...- CaptainNemo
- Thread
- Replies: 11
- Forum: Antique Machinery and History