"BruceR" wrote in message

This happened to my 560 as well (not near as bad!). Wood fibers get
caught (jammed) between the knife and retainer.


Had a less serious but similar thing with my 580 The blades were getting
dull and I had just a couple more passes to go. All of a sudden, it was
noisy as hell and cut a concave area in the board. ****ed me off as it was
the last of the maple stock I had. Blade was bent but the retainer was OK.

Now I keep an extra set of blades on hand and vow never again to tray to get
that last pass or two when I know they are getting dull.
Ed