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Adjusting used Rocky?
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jsantaniello
Senior Member


Joined: 7 Jan 2012
Posts: 14
Location: Norway
Expertise: Just starting

Posted Wed Jun 6, 2012, 1:44pm
Subject: Adjusting used Rocky?
 

I just picked up a used Rancilio Rocky for pretty cheap.

I'm new to quality grinders so I don't have any frame of reference, but I have my suspicions that this has been taken apart to be cleaned or the burrs replaced, and reassembled incorrectly.

I can turn the hopper counter-clockwise to what appears to be -17 without meeting any resistance. And at this finest setting, the grind is pretty coarse. Looks like it would be a nice Moka grind.

Looking at youtube videos about cleaning/changing burrs all seem to make reference to marking the burrs and holder to ensure proper reassembly. But how do I reassemble properly without knowing what the proper postion is?

I've ordered a new burr set, but I figured I'd give a clean a go while waiting for the set to arrive.

So how should I put it together right?

Thanks,

Joseph
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clumeng
Senior Member


Joined: 19 Aug 2006
Posts: 351
Location: Ann Arbor
Expertise: I live coffee

Espresso: Vivaldi II, 67 Cremina
Grinder: Vario, Maestro, Pharos
Vac Pot: Aeropress
Drip: Technivorm, Chemex
Posted Wed Jun 6, 2012, 2:15pm
Subject: Re: Adjusting used Rocky?
 

The # gauge really doesn't mean much.  When you take it apart you will find that it can spin fairly easily around so it's a relative number - not an absolute one.  Just be careful when screwing things together so that you don't cross the grooves on the spinale when you reassemble.  New burrs make a world of difference.
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jsantaniello
Senior Member


Joined: 7 Jan 2012
Posts: 14
Location: Norway
Expertise: Just starting

Posted Thu Jun 7, 2012, 4:46am
Subject: Re: Adjusting used Rocky?
 

I pulled it apart and cleaned it. The burrs look fine to me, so I guess I'll just hang onto the new ones when they arrive. Or maybe change them just to see the difference.

Once I cleaned it out, it was easy to reassemble properly. I just screwed the upper burr holder on until I felt contact with the lower burr, then backed off about 1/4 turn. Then when the hopper was mounted, low and behold, the grinder zeroes out at 2 which is pretty reasonable. I guess whoever reassembled last time around was afraid to screw in the upper holder enough, and thus once the hopper was on, the stop-screw kept the whole thing from even getting close.

Result: Yum! At about 8 using Lavazza Qualita Rossa, it's just about perfect!

One thing banging my head against the wall with the cheap grinder I had before has done is drill into routines for consistency. This is fun!
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