Newbie Lathe operator

rzw0wr · Mar 3, 2019

I just bought a Bolton BT1022 metal lathe.

I found the the head is about .001 per 1" out of parallel with the ways.

Does anyone know how to adjust the head or know where I can get a repair/service manual.

The seller and Bolton are no help at all.

Thank you,
Dale

Demon69 · Mar 3, 2019

Hi Dale.

Im guessing youve already found this. On page 23 theres a pic of the bed, looks like theres 4 bolts holding the headstock down.
https://boltontool.com/pdf/BT1022.pdf

If you go about things in this order you should get some idea of whats going on, my guess is the headstock is out of alignment:-

Level the machine (adjust the twist out of the bed)
Chuck up a slug of 2" bar and turn 2 equal diameter collars over 6"
Indicate from the saddle the top and closest to operator surfaces of those 2 collars. (they should be very close to zero)

If you get a big number theres a very good chance your headstock needs adjusting, im guessing that would involve loosening those 4 bolts and bumping it over.

Cheers
D

rzw0wr · Mar 3, 2019

Demon,
I found those screws and tried to adjust the head.
No luck, the head sits on the ways with no play.
I guess I will need to remove the head to scrape the ways under the head.
OR.... just forget the whole mess and buy another GOOD lathe.

Thanks for the reply

dalmatiangirl61 · Mar 3, 2019

Please clarify, .001 per inch or .001 per foot? First one sounds bad. You leveled lathe with machinist precision level before getting those readings?

Edit: Just looked at link, leveling may require bolting to a bench to effect any twisting

awake · Mar 4, 2019

#1: Review the stickies on appropriate machinery to discuss on this forum. I don't think your Bolton qualifies (though I may be wrong - I think that has happened at least once or twice ... in the last 15 minutes!)

#2: How did you determine that the head is out of parallel with the ways? If you simply put a test bar in the chuck, or your machine was not levelled properly first, or so on, you may be attributing the error to the wrong source.

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