replacement of the friction plate bearings in Husqvarna automowers. This may be the required fix if you are getting repeated blade fault or blade blocked errors.
Bearings required are 6800-2RS. You must get bearings with double seals. Note, the OEM bearings lasted years. Amazon bearings are cheap. $8 for 8 bearings. However, they only lasted me a couple months at best. Once I burn through all of these I plan to get them from McMaster. They are significantly more expensive, but they do have Stainless steel bearings permanently sealed that are $24 each which I suspect will last years, potentially the rest of the life of this mower.