I got a good deal on an RR45 but it was so dirty that I could hardly get a bean down the throat.
It had a thick gummy tarry goo that nothing I had would dissolve. Took me literally 4 hours to clean.
Anyway I removed the upper burr from the carrier. Is there any kind of alignment procedure for reinstalling them? There seems to be a fair amount of play in the 3 screws.
Also any recommendations on a solvent for that tarry goo?
KevinCash Senior Member Joined: 21 Jul 2005 Posts: 152 Location: Columbus, OH Expertise: Pro Barista
Espresso: PID'd La Marzocco Linea 3 EE Grinder: Mazzer Major, Ditting 804 Drip: Fetco Extractor Roaster: Jeff Davis @ Cafe Brioso
Posted Sat May 24, 2008, 7:05am Subject: Re: Rossi RR45 burr reinstall?
for a solvent, get some purocaf or urnex from your local coffee shop. Mix that up with some really hot water and let it sit. Once the screws are tightened, they still move? The only real procedure is lining up the holes, nothing secret about it. Unless the wrong burrs were installed on the grinder before you bought it.
Posted Sun May 25, 2008, 10:36am Subject: Re: Rossi RR45 burr reinstall?
The screws tighten the burrs down ok.
Its just that because the holes in the burr are slightly larger than the screws, there is some slop in where the burr can be on the carrier when you tighten the screws down. Not much maybe 1mm or less.
Seems like the burrs not being exactly centered to each other would affect grind consistency.
But maybe it's just my AR machinist's background showing through. I left the dial indicator in the toolbox and just eyeballed it.
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