Tinker said:
Why is the nut stripped?
could it be that you have been really rarin' on it with the wrench?
The nut does not need to be socked up as tight as you can tighten it.
i do the same as on my table saw, i just snug it a little bit.
The rotation of the saw has the tendency to tighten rather than to loosen.
The blade on my ATF has never slpped or loosened with the method I have been using.
To answer your question, not knowing whether the bolt threads are stripped, or the saw threads, I think a call to Festool repair would be in order.
Tinker
Important!!
The arbor bolt on a TS saw will
not self-tighten if loose. The arbor flanges are keyed, and this prevents them from rotating with respect to the arbor. Therefore, the arbor bolt will not turn/tighten if the blade were to slip, like it will do with a tablesaw arbor.
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