9 inch Atlas/Craftsman Lathe : Another re-assembly attempt

Paul_NJ

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It must be 10 years since my neighbor and good friend gave me an antique lathe that has been his fathers. Here's what it looked like when he dragged it over to my barn:

739s.JPG

It needed a motor, so I never tried to run it. And the belts looked pretty scary anyway. So of course the first thing I did was take it all apart to clean off many years of dirt and grease sitting in his barn, unused, and paint it. Time passes, and each time I got stuck on one particular section, I'd leave it (for years at a time) and move on to some other project. But now I'm determined to figure this thing out.

What I've been struggling with is assembling the top pulley spindle. I found a blow-up in a manual I found on-line, and after some frustration finally realized it was upside-down.

lathe 1.jpg

So it should look like this

lathe spindle.jpg

So I've finally got it together and installed into the carrier, but I have a number of questions:

Question 1: on the top pulley spindle, should the 3-step cone pulley, and the large single pulley to it's left, be able to slide 1/4 inch, or should they be fixed laterally? I realize the shift collar is supposed to move to engage or disengage the large pulley next to the cone, but everything seems too loose on that spindle, between the bearings.

Which brings me to the next question. I'm wondering if I need to adjust the position of the clutch collar. I don't recall if I originally loosened and move this, ten years ago.

Question 2: a long shot, but can anyone give me a measurement on the location of this collar: (The picture is upside down because I initially thought it should point the other way)

P1010769.JPG

Those seem to be the key issues right now.

Question 3: Finally, the belts. When I received the lathe, the original belts were on it. Each was stamped with the original part numbers: 9-125, 9-126. I read the lathe was built in 1933, so that makes them 80 yrs old, and they were pretty frayed. So, I had a local shop match them up, and they gave me A28 and A29 belts. But the two smaller belts are very tight, and the larger too loose. Can anyone help me with replacement sizes?

Question 4: while I'm at it, I've not found anywhere that can explain how the belt set-up is used. Why are there 3 belts anyway?

Any help that can be provided me would be greatly appreciated!

Paul

739s.JPG lathe 1.jpg lathe spindle.jpg P1010769.JPG
 
paul,
did you make any progress on this lathe?
i have the same type of compound drive on my lathe. mine is a atlas 936.
ernst
 
Paul,

I've never seen a 9" and can't answer your questions 1, 2 or 4. On Question 3, Atlas used FHP (Fractional Horse Power) belts on all of their other lathes made up until 1957. Assuming that the two belt sizes you have are about 28" and 29" in circumference, try 4L280 and 4L290.
 
Thanks for the replies! Since I posted my original thread, I was (finally) able to get it together and figure out the compound drive. Of course I had the position of the belts reversed. Took some trial and error, but it's actually working and useable. Hurray!P1010798.JPG
 
ernst,

I downloaded a manual for the 9 inch lathe from the internet in pdf format, but don't recall where I found it. I'll try uploading it onto this thread. I will check for the serial number and belt numbers tomorrow when I'm up in my barn workshop. I'll check out your thread next.

Thanks

Paul
 

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  • sears Metalcraft lathe.pdf
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paul,
thanks so much for the pdf, that helps a lot. here is a picture of my restauration, almost there....
ernst
1.jpg
 
Wow, that looks beautiful! I haven't reattached the feed screw mechanism yet on mine as other projects have edged their way in. I found the top pulley spindle ends are 1/4" NPT, so instead of the "jam caps" to add lubrication, I drilled and tapped 1/4 NPT pipe caps for Zerk fittings so I can use a grease gun for periodic lubrication. Finding a steady rest like yours has been impossible so far! Great project!

Here's another project on my endless list . . . . http://www.hobby-machinist.com/threads/now-heres-a-diamond-in-the-rough-project.36774/
 
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Could I have the serial numbers for both of your machines?
 
Could I have the serial numbers for both of your machines?
I'd be happy to . . . ernst provided a clue where to look on the Craftsman . . . suggestions of where a number might be found on the VN are welcome . . .
 
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