Lathe Chuck. type A to L-00 and Jaws. trying to get Lathe running.

[countryguy]

Hello team HM. My kid and I are trying to finally get this 2 Ton, 10" chuck, polish origin MFR:Andrychow lathe up and running. We were able to finally knock the 3 jaw chuck off! This is a CSA Swedish 10" Type L-00 (zero zero I assume). I picked up a 10" 4 jaw at an auction... found the badge.. tada. bison 4314, type A. (pics below).

Wondering if some of the Lathe guys can help me understand a few basic chores I need to complete:
1) I want to get the Bison 4314, 4 jaw turned into a L-00 mount. (see some images of backplates).
2) I am unsure what type of jaw tops to bolt onto the SCA 3 jaw lowers that are showing the 2 holes? We could at least use that for now.

Here are 2 MSC Direct backplate, but the holes look off? Would I just drill/machine what I need?
https://www.mscdirect.com/product/details/08568495
https://www.mscdirect.com/product/details/08506495

This is down the road from me. Local pick up. Could use this plate, drill as needed, save the chuck for a backup or just sell?
http://www.ebay.com/itm/10-4-JAW-SELF-CENTERING-LATHE-CHUCK-w-L00-adapter-back-plate-4-extra-jaws/182490931409?ssPageName=STRK:MEBIDX:IT&_trksid=p2055119.m1438.l2649

bison catalog: Page 72 shows this chuck as a 4 jaw independent. pg. 139 for the 8205 plate from MSC.
http://www.bison-america.com/public...96/bison-2016-usa-chapter-1-manual-chucks.pdf

 

[Wreck™Wreck]

L long taper, A American taper. These are spindle nose designs, they are not even close to the same thing.

The L taper will have a captured nut on the spindle making them quick change, the A taper bolts on from the front which is not so quick change.

Determine which spindle taper your machine has, they are not interchangeable however back plate adapters are often available.

http://www.tools-n-gizmos.com/specs/Lathe_Spindle_Mount.html

 

[countryguy]

yep. Thanks. I get that. The spindle is a L-00. the 3 jaw l-00 came w/ it. Objective overall- is do I take one of the chuck backplates and just drill/machine to fit my type A-4 jaw. Sounds like they sell the blank backplates to allow you do DIY.

 

[Silverbullet]

Yes you can do either , if you want to use both chucks then get an extra back plate . Plus I like the four jaw scroll chuck you listed . I think they still make them with independent and scroll combined best of both worlds in one chuck. There expensive now tho. But if you only want one that's the way. Good luck with the beast hope she works out really well. I've ran some big old LATHES in my time one I remember I had to spin the chuck to engage the gears with its motor-running , I forget why but it worked for a lot of years at micro circuit engineering. A company I helped start.

 

[machPete99]

I did something similar, took a L00 back plate and machined it to fit a 8" A1-6 mount 4 jaw chuck. You need to make sure that the bolts that hold the chuck to the back plate do not end up in a bad place, like into the spindle or retaining ring. I machined a tapered snout on the back plate that just fit into the registration hole on the chuck. Works pretty good.