Re: Drive Coupler Not Staying Engaged, Craftsman 101.21200 MK2
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The new spring has 2 extra turns. Look up the specs in machinery's handbook. They should be functionally identical.
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Replacement ball detent kits arrived a while back but just now got around to trying it out.? This kit may be "new" but I think it is not "factory".? All I know for sure, the spring is not the same as what was in my lathe's coupler.? Wire diameter on my spring
is 0.020".? Diameter of the two "replacement" springs are 0.015".? On the right is my spring, left is the replacement.? I'm didn't even try them.?
I had ordered some springs from McMaster-Carr as well; longer ones and thicker wire, 0.022".? Clipped one, one more spiral longer than the one that came out of my coupler and after having lost one steel ball, got it back together.? Coordinating depressing the
ball/spring and aligning the coupler key slot with the key took me a few tries.? Shiny spring on the left is the one I used.? Middle is the original, two on the right, the replacements.?
The McMC spring seems to be doing the trick.? It is noticeably stronger but did slip out a few times just after being installed.? Didn't with the lathe just running at top speed, but did when load was applied to the spindle.? After a while, that ceased and
it is now remaining engaged after allowing the lathe to run unloaded a while and then trying it with load.? Likely will be just fine as I don't know what I'd do putting much load on it at that top speed.?
Unless something else happens, I consider this issue resolved.? Thanks for the assistance.
Rick
On 1/19/2024 6:15 AM, Bill in OKC too via groups.io wrote:
It's a good question.??
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about $18 including shipping on eBay. Believe it's the same seller who sold me the replacement felts for my headstock, and the wipers for the bed.?
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Bill in OKC?
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William R. Meyers, MSgt, USAF(Ret.)
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