Barista Pro Grinder Burrs Loose
Hi all, I’ve had my barista pro for about 2 years now. I typically use light-medium roasts and usually have the internal/upper burr set to 3 and external setting at around 3-6, with minimal but some deviation outside of that range, to achieve 36g in 25-30 seconds.
However, I’ve recently noticed that my shots have been extracting really quickly, as in around 15 seconds all of a sudden, and what’s more is I am down to an external setting of 1. I did notice the machine on a couple of occasions during grinding seemed to jam up inside, like a skipping clutch? I thought it may have jammed on a solid light roast bean for example, but removing the upper burr I never found anything of the sort.
I’ve just changed the upper burr down from 3 to 2, and tried dialling in again and found myself all the way back down at 1 externally, which makes no sense. I took the hopper and upper burr off again and by chance used my thumb and forefinger to make sure the nut on top of the lower conical burr was tight, and the nut instantly unscrewed - This is how I found out it is actually reverse threaded!
My question is: How tight should this nut be, as tight as it will go over the spring washer? I can do that myself carefully with tools. Or, is this cause of concern and it needs to be professionally repaired? I wouldn’t imagine this is the case, but happy to be corrected.
Thanks ☕️