Six months ago I was having problems with wavy cuts. Thought it was the blades first, then checked the blade guides. Finally someone at Wood-Mizer suggested checking the drive belt tension. That cured the problem until today. I noticed the blades were not tracking quite right on the drive wheel side. After a closer look, I discovered the nuts on the U-bolt that hold the main drive assembly together had backed off, causing the drive belt to loosen six months ago and finally, today, the blade tracking to go screwy. The real kicker was it would not do it after every cut, so it was a real pain to find. Just posted as info. Wavy cuts were the first problem. Something to check if you start having problems.
(Sawing and Drying Forum)
From contributor B:
Thanks for the info. I have not had that problem…yet. Probably every other problem for wavy cut. Just goes to show - you don't know it all.