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Thread: La Pavoni ex-commercial grinder - cannot adjust grind

  1. #1
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    La Pavoni ex-commercial grinder - cannot adjust grind

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    I have what I am told is a Pavoni ex-commercial grinder. The problem is that I cant move the grind adjustment ring - from the manual I found turning the ring anti-clockwise should loosen it. So, I press the metal button that removes the locking pin, and then it should turn? It looks like steel going into Aluminium - could it have corroded. Do I have to get nasty and use impact or maybe an oil filter puller.

    The guy I bought it off implied to me that it could not be moved. Ideas?

    Thanks,
    Rider

  2. #2
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    Re: La Pavoni ex-commercial grinder - cannot adjust grind

    The most common cause of this is that the thread is totally bogged up with old coffee oils that have solidified into a gummy paste over the years, and the thing has never been moved from the one position so it is effectively "locked in" with that paste.

    So yes, you may have to ....gently but firmly....force it. Your idea of a self tightening oil filter spanner positioned around the ring is good. But dont get nasty!

    Just make absolutely sure there is nothing else in there anywhere that may be causing the problem before applying gentle / firm pressure.

    Coffee is oily and there shouldnt be any corrosion, except if someone has poured water in there (dont laugh, weve seen it!) but then the corrision is usually restricted to the brinding burrs which will look quite rusty, not the alum / brass threads.

    By the way I have given this advice with the best of intentions, relying only on your informatin, and without seeing the problem first hand. I wont take any responsibility if you should break something in your own efforts to rectify.


    Regardz,
    Attilio
    very first CS site sponsor.


  3. #3
    Senior Member
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    Mar 2008
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    Re: La Pavoni ex-commercial grinder - cannot adjust grind

    When I received my Super Lusso it was in a similar position. At one point I thought someone might have used lock tight to hold the burrs. It took alot of gentle pressure on the collar before it started to move.

  4. #4
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    Perth, WA
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    Re: La Pavoni ex-commercial grinder - cannot adjust grind

    Thank you both Fresh Coffee and Martial Monkey, the collar is now free. It was incredibly tight and bound up.

    We had to cut off the plastic collar that sits underneath the metal collar so that we could see what we were doing. We tried a fancy filter puller but it started to bend. Then we sprayed canola oil on the thread. *Then we tried a cold chisel and finally moved onto an air powered chisel. Slowly it started to move - and yes, we did have the lock off! My mate (this was in his shed) said it looked like bad chrome had flaked off *in the threads, plus there was a lifetime of gunk in there. I suspect there is a proper grease for this or what is appropriate?

    We cut some chunks out of the collar but it still works. At least now I can adjust the grind and replace the burrs. I havent tried the screws on the burrs yet.

    Thanks for your help in giving me the courage to plow on knowing it had to eventually come off.



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