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Thread: Rancilio Rocky: stopper screw bent, grinders ground together

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    Rancilio Rocky: stopper screw bent, grinders ground together

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    I have owned it for about 3 years and used it only lightly but confess Inever thought about taking it apart because the book says it will void the warranty.

    I was grinding about 150 gms of coffee into a bag when the grinders gripped together. I was going to take it for repair but I then found cleaning instructions plus a video. I did as instructed and found it very clogged (hopper as well) and the stop screw had bent to 90 degrees. I found several screw in the shed of similar thread and tried several of different lengths, it was hard to judge the correct length from the mangled screw. On the fourth try the screw seems about right.

    I put it back together trying to set the zero point but the screw only allows for the dial to be set at about 3. I have a feeling it may have always been this, after all the dial is only stuck on. I do not hear any zero sound of the grinders just scrapping as mentioned in references.

    I used to have the grinding setting at about 6-8 before.
    How do I know if it is set correctly and that the grinders are not damaged or worn? (I will try some coffee this evening as I had none) :-/

    Thank you

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    Re: Rancilio Rocky: stopper screw bent, grinders ground together

    Quote Originally Posted by 5A51575D564B5D553E0 link=1268862366/0#0 date=1268862366
    I was grinding about 150 gms of coffee into a bag
    While we wait for a knowledgeable Rocky owner to answer your question, may I ask why you were grinding 150g into a bag?

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    Senior Member fatboy_1999's Avatar
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    Re: Rancilio Rocky: stopper screw bent, grinders ground together

    As often said about the Rocky, the numbers really dont mean much unless you know the true zero of your grinder.

    Whenever you take it apart, clean and re-assemble, the numbers wont neccessarily correlate to what they were before either.

    When I had the Rocky, I ended up removing the stopper screw completely.
    Reason being, when I wanted to take the top burr off, I had to unscrew the hopper from the burr and then proceed.
    When I took the stopper screw out, I could remove the top burr whilst it was still attached to the hopper.

    When putting back in place, I would do the adjustment for true zero as per advice of many - With grinder running, gently turn the burr to finer until you hear the lightest sound of the burrs touch. Back off a bit and that is zero point.

    Due to the steps on the Rocky, you have to hold the button down whilst doing this, but living without the stopper screw worked for me. I think I put it back when I sold it.

    Find the true zero on you Rocky, and then you will have a better idea of where youre at.

    Brett.

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    Re: Rancilio Rocky: stopper screw bent, grinders ground together

    Quote Originally Posted by 7D415C474D4C5B4E464D290 link=1268862366/1#1 date=1268874242
    Quote Originally Posted by 5A51575D564B5D553E0 link=1268862366/0#0 date=1268862366
    I was grinding about 150 gms of coffee into a bag
    While we wait for a knowledgeable Rocky owner to answer your question, may I ask why you were grinding 150g into a bag?
    There is so much going on with such a simple machine and so many getting off track .. My brain hurts....


    doichuck - dont take the following personally... No matter how much you think it is directed at you. At least you asked and thus your deserve the truth and not some bull crap.

    1: If the safety screw has been bent over..

    PEBFAG ( G is either Group or Grinder - interchange as required ;) )

    This is also why comments about safety in the other Rocky thread are null an void.

    PEBFAG and the best safety features are over ridden or ignored...

    I say again IDIOCRACY is just around teh corner... Bad day and already depressed.. Need coffee and meds.


    Maybe PEBFAG should be AKA "Frito Pendejo"


    BOT:

    2: All grinders require cleaning... If you dont; oils and crap will build up and clog the burrs.

    Cleaning... Whats that.... Frito Pendejo then just keeps winding down teh grind settings..

    Outcome: This introduced LOTS of pressure and threads get stressed and mechanical parts flex / stretch... Yes it happens to metal too including group heads, they are not hard; just less fluid at room temp. Note: Group heads and grinders both get hot ;)

    A: As some stage, depending on what the unit was set at (usually the safety screw is about 1/2 or 1 click above chirping) the crap and stretching has pushed the burrs apart..

    B: This means Frito Pendejo cranks the setting down even further and now you crushing and milling the beans and has bent the safety screw to get teh setting down...

    Note: Because of teh flexing the burrs; true zero under load, has now changed.

    Note: In teh vid he showed how he could lift the top carries and stop it from chirping.. Stretched threads etc..

    Thus; the Zero is no longer Absolute Zero ;D This is dynamic and change is ongoing.. One of the reasons step less is the way to go; as you can manage minor changes in teh hardware.

    OH... Over 3 years, there has been some loss of burr material so this also impacts on the Absolute Zero...


    Ya all still with me :-?


    C: Here is the hard bit for Frito Pendejo to comprehend...

    Q1: Ya move the dial by ONE click; how much of a increment is this on a Rocky

    A1: You tell me or provide teh formula... ( )

    PS... I know as I was anal enough to work it out... two shakes of a Gnats whisker...


    Answer as to what is the correct setting:

    Please follow the link in the third post as provided here http://coffeesnobs.com.au/YaBB.pl?num=1268722459

    And then the other link in the second post..

    Remember the numbers are a decal and mean nothing other than a reference to you.

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    Senior Member fatboy_1999's Avatar
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    Re: Rancilio Rocky: stopper screw bent, grinders ground together

    Quote Originally Posted by 113E3735221D313E3137353D353E24500 link=1268862366/3#3 date=1268879808
    doichuck - dont take the following personally... No matter how much you think it is directed at you.At least you asked and thus your deserve the truth and not some bull crap.
    Boy - I REALLY hope that wasnt directed at me!

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    Re: Rancilio Rocky: stopper screw bent, grinders ground together

    Quote Originally Posted by 5C5B4E585543650B0303033A0 link=1268862366/4#4 date=1268881223
    Quote Originally Posted by 113E3735221D313E3137353D353E24500 link=1268862366/3#3 date=1268879808
    doichuck - dont take the following personally... No matter how much you think it is directed at you.At least you asked and thus your deserve the truth and not some bull crap.
    Boy - I REALLY hope that wasnt directed at me!
    Actually... No dont go there ;D

    Hey... I am some time just as guilty and fail to practice what I preach :o :o :o :o

    My wife get the sh1ts with me and often tries to get me to start preaching while looking at a mirror 8-)

    Dont do it; its frightening ;)

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    Re: Rancilio Rocky: stopper screw bent, grinders ground together

    Quote Originally Posted by 5B677A616B6A7D68606B0F0 link=1268862366/1#1 date=1268874242
    Quote Originally Posted by 5A51575D564B5D553E0 link=1268862366/0#0 date=1268862366
    I was grinding about 150 gms of coffee into a bag
    While we wait for a knowledgeable Rocky owner to answer your question, may I ask why you were grinding 150g into a bag?
    Quote Originally Posted by 5B677A616B6A7D68606B0F0 link=1268862366/1#1 date=1268874242
    Quote Originally Posted by 5A51575D564B5D553E0 link=1268862366/0#0 date=1268862366
    I was grinding about 150 gms of coffee into a bag
    While we wait for a knowledgeable Rocky owner to answer your question, may I ask why you were grinding 150g into a bag?
    I was going away for a week and wanted to use the coffee in a dripolator in a holiday house

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    Re: Rancilio Rocky: stopper screw bent, grinders ground together

    Quote Originally Posted by 6A61676D667B6D650E0 link=1268862366/6#6 date=1268888235
    I was going away for a week and wanted to use the coffee in a dripolator in a holiday house
    Why not take the Rocky with you?

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    Re: Rancilio Rocky: stopper screw bent, grinders ground together

    I wish to thank the first and second replies but the others lost me. what happened to plain english?

    Anyway I dialed the grinder up to get a coarser grind in my bag for the filter coffee not down so that I did not put pressure on the stop screw. It just did it whilst grinding. I know I probably did all the wrong things. I just need a bit of simple advice.

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    Re: Rancilio Rocky: stopper screw bent, grinders ground together

    Quote Originally Posted by 73787E747F62747C170 link=1268862366/8#8 date=1268889005
    I just need a bit of simple advice.
    Do what Answer 2 from fatboy advises ;)

    KK

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    Re: Rancilio Rocky: stopper screw bent, grinders ground together

    Quote Originally Posted by 50747D7D7E7E4450746876741B0 link=1268862366/9#9 date=1268889314
    Quote Originally Posted by 73787E747F62747C170 link=1268862366/8#8 date=1268889005
    I just need a bit of simple advice. *
    Do what Answer 2 from fatboy advises * ;)

    KK
    http://home.surewest.net/frcn/Coffee/HowToRocky.html

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    Senior Member GregWormald's Avatar
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    Re: Rancilio Rocky: stopper screw bent, grinders ground together

    The stopper screws are bent at the factory to get the best impersonation of an accurate zero.

    Having jammed a couple of grinders myself I can say that it is usually from trying to grind too much coffee at once. While the better domestic grinders are indeed better ( ::) ) they are not deli grinders and are not meant to process large amounts of beans at one go.

    I suspect that unless you persisted with grinding after the burrs "ground to a halt" and stuffed the motor, all will be right after a good clean. Both grinders I stopped worked perfectly after a clean.

    Good luck.

    Greg

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    Re: Rancilio Rocky: stopper screw bent, grinders ground together

    I dont know if this could contribute to the jam but most grinders will have a fairly limiting duty cycle - eg. my K3T is 2 minutes use/10 minutes off.
    Your 150g would have been just over that (1g/s is typical isnt it?) but you would think there would be more safety margin in the specs.

    I remember posts elsewhere of grinders expiring while trying to grind a bag for friends.

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    Re: Rancilio Rocky: stopper screw bent, grinders ground together

    Quote Originally Posted by 71616370677B020 link=1268862366/12#12 date=1268943011
    I dont know if this could contribute to the jam but most grinders will have a fairly limiting duty cycle - eg. my K3T is 2 minutes use/10 minutes off.
    Your 150g would have been just over that (1g/s is typical isnt it?) but you would think there would be more safety margin in the specs.
    It was probably one hoppers worth and I guess I was asking for too much, even on a coarse grind. My old cheap grinder could handle this without any problems.

    After purchasing some coffee beans all seems OK. My usual grinding setting was to fine (I bought my usual coffee). I will now do regular cleaning and I am not going to worry to much about zero, I will just enjoy the coffee.

    Thanks for the replys everyone

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    Re: Rancilio Rocky: stopper screw bent, grinders ground together

    When I had Rocky it was the only good grinder in the house, and wen I ground coffee for friends I use to fill the hopper and set it for drop and it always did a good job without any difficulties at all... as long as I remembered to keep an eye on it and empty the doser before it overflowed!

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    Re: Rancilio Rocky: stopper screw bent, grinders ground together

    Good link in this thread so i need it at the top so i dont have to go digging tonight when i do some playing..... in other words bump ;)

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    Re: Rancilio Rocky: stopper screw bent, grinders ground together

    Quote Originally Posted by 695B485D3A0 link=1268862366/15#15 date=1281075208
    Good link in this thread so i need it at the top so i dont have to go digging tonight when i do some playing..... in other words bump *;)
    Play nice...

    Just scroll to the top of teh post and select "Add to my Favourites"; cleaner and will always be there for YOU...




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