Thanks, Guess I am going to do the same for mine only has about 7 hrs on it and it has vibratited since I have had it and just seems to be getting worse.I did once with a Redmax and they were never really sure what cause it. Seemed the vibration was coming from the engine somehow. It was brand new with like 5 hours on it so the dealer just gave me a new one and sent it back to Redmax. Turned out to be something faulty in the shaft.
This stuff is NOT normal from RedMax trimmers.I have a redmax trimmer and a husky also. I noticed the redmax has alot more vibration while turning up the rpms and my hand goes numb after awhile using it. The husky has almost no vibration. Has anyone else had this problem with their redmax.