Dremel4000 loud and excessive vibrations above 2500rpm
Got it used and clogged with what I assume was drywall caulk. I took it apart and detailed it. but now after reassembly I get severe and excessive vibration in the unit and can’t even use it above same level 5/10 and that is really uncomfortable. The bearings are good as they don’t appear to have any wobble or grinding when in my hand. this is only happening at higher speeds as well. I was thinking about adding tape around the back rubber bushing but does anyone have recommendations for the front? Should I remove the bearing seal and put a couple drops of gun oil in each bearing?
Any help greatly appreciated!
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