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Jet 1236 Ps

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Needcoffee

Swarf
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Feb 29, 2016
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#1
I just purchased a jet 12236 PS. I have disassembled it to clean it. I'm looking for documentation on it. Specifically a parts breakdown and any other information.

In addition the crossfeed leadscrew has significant backlash and I would like to replace it and nut if it all possible. Does anyone have any information on what the thread is. Is it an ACME standard or metric?

I contacted Jet and they had a little to no information.

Regards,

Jeff

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NedsHead

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#3
Last edited:

Needcoffee

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#4
Thank for the info. I was able to come up with one from steve from his " totally screwed machine shop" web site.

Thanks once again
 

Bamban

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#5
Besides the bed length, mine being 24 inches C2C, my Federal lathe is the same as yours. I will be following this thread to see how you tackle the lead screw and nut replacement.
 

Needcoffee

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#6
I pulled everything apart and cleaned it. I ended up splitting the crossfeed nut and installed 2 each 10-32 set screws. After adjusting these my crossfeed backlash is a few thou. Good enough.
 

Needcoffee

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#7
I was playing around with a CCMT boring bar and a turning tool I purchased recently and was pleasantly surprised. I have only used HSS as of yet but had wanted to try carbide insert tooling for hogging off material and not having to use cutting fluid.

I stuck a scrap 7 inch piece of 2 inch diameter pipe in the chuck and set the feed and depth of cut for the tool radius.

What I got was a decent finish. In and out.

The suprise was when I measured the OD of the cylinder in half a dozen spots. The measurement ranged from 1.8183 to 1.8184. From 2 inch off the chuck face to 7 inches

This old lathe appears to be more acurate than I expected.

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Jason Annen

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#8
I have that same machine, with all the manuals. If you need something, infowise, let me know.

Jason
 
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