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Thread: Newbie Rocky questions...

  1. #1
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    Newbie Rocky questions...

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Ive had the Rocky for just about 2 weeks now and have made some observations.
    When I first got it, I turned the hopper until the setting said "8" and started the motor with no beans. It was quiet as Id expect indicating the burrs are not touching each other. Did that again with the grind setting all the way to zero and it was still silent and then started grinding beans at the setting of 7 for decaf and 8 for other beans for the Silvia.

    This morning I set the grinder to 13 for the Gaggia Carezza I had at the office and after all the beans there ground (I measure the exact amount of beans to grind most mornings so I dont get different blends unintentionally), there was a metallic sound like burrs touching. I went down in grind size settings and at zero, it was quite pronunced. Is there something wrong with the grinder seeing as I had done this before with no beans all the way to zero and there was no such sound? Is there a simple way to fix this without returning the grinder to be fixed because I don;t have an alternative grinder for my everyday coffee?

    Also, Ive been reading a lot about the teflon tape mod and have been trying to find the instructions on how to do it but am unable to find it. anyone have the link to show how the mod is done?

  2. #2
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    Re: Newbie Rocky questions...

    My question to you is why would you be taking the settings down to zero with no beans in the hopper? And if you heard a metallic sound, why would you continue to take the settings finer???

    That aside, you mentioned it was after the beans were ground. Could be a foreign object in there. Have you tried taking it apart to do a visual?

  3. #3
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    Re: Newbie Rocky questions...

    Are you doing all these adjustments with the grinder turned on? I believe that if you adjust with the machine off, then turn it on, you can damage components.

    Regards

    Gary

  4. #4
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    Re: Newbie Rocky questions...

    I didnt do the adjustments with the machine on. I switched it off and wait till the motor stops spinning before I change the settings. I went finer to observe if it gets worse as I went finer. Why does it damage the components if i switch it off and then adjust?

    I havent taken the grinder apart yet. i havent even removed the finger guard yet. Should I be doing so?


  5. #5
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    Re: Newbie Rocky questions...

    The noise can be something like a piece of bean, somehow stuck in the chamber and just touching the burrs, I frequently get it.
    If you screw the top out to clean it out it would probably fix it,
    however if it is just a bit of bean, it is not worth worrying about,
    OTOH if there is some foreign metallic body in there,
    then it needs to be cleaned out real quick.

    Why do you want to do the teflon tape mod?
    That is only required if the top bur carrier is loose in the threads,
    mine isnt, and is quite firm to screw in and out.
    Do not remove the finger guard, except when disassembling for cleaning, it also serves a double purpose to assist bean flow pattern into the grinding chamber.
    However it is well worth finding something to block the screw holes, because otherwise you get beans stuck in the holes. I got some plastic plugs from "Nuts and Bolts" the work a treat, even come in matching black colour.

    Regards
    Bullitt

  6. #6
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    Re: Newbie Rocky questions...

    Quote Originally Posted by Bullitt link=1190597342/0#4 date=1190609349
    The noise can be something like a piece of bean, somehow stuck in the chamber and just touching the burrs, I frequently get it.
    If you screw the top out to clean it out it would probably fix it,
    however if it is just a bit of bean, it is not worth worrying about,
    OTOH if there is some foreign metallic body in there,
    then it needs to be cleaned out real quick.

    Why do you want to do the teflon tape mod?
    That is only required if the top bur carrier is loose in the threads,
    mine isnt, and is quite firm to screw in and out.
    Do not remove the finger guard, except when disassembling for cleaning, it also serves a double purpose to assist bean flow pattern into the grinding chamber.
    However it is well worth finding something to block the screw holes, because otherwise you get beans stuck in the holes. *I got some plastic plugs from "Nuts and Bolts" the work a treat, even come in matching black colour.

    Regards
    Bullitt
    Thanks. I will open this up to take a look. Previously I had a noise similar to this before when I had the Silvia PF in the fork and it turns out the noise was caused by the vibration of the PF on the fork and not the burrs itself. But this morning, I didnt have the PF on it, hence the concern.

    For the finger guard screw holes, I inserted ear plugs (unused, incase people were wondering, not keen on wax flavoured coffee) and it works beautifully. Before that, I had to pry out some coffee beans that found its way in there and got stuck. Not the best design for a costly grinder if you ask me. A bit disappointed given my previous grinder was a Gaggia MDF and I got the Rocky because I wanted a doserless. With the MDF, I didnt get clumping and noise from the burrs. Almost starting to miss the MDF already.

  7. #7
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    Re: Newbie Rocky questions...

    Quote Originally Posted by NewToEspresso link=1190597342/0#3 date=1190605069
    Why does it damage the components if i switch it off and then adjust?

    I doubt that, adjusting the grinder or having touching burrs whilst the grinder is off will cause any damage.

    But if the burrs were firmly touching and you then switched on the grinder, you could certainly cause a lock rotor and burn out the motor, break the burrs or damage any of the drive components.

    If youre adjusting whilst the grinder is running, you will definately the point hear when the burrs just touch and you would [should] stop immediately. But I guess there is still a risk especially with a stepped grinder of causing damage.

    FWIW When Im reassembling my grinder and trying to find the true zero point [ie where the burrs just touch] , I run it, switch it off and ONLY make adjustments whilst the motor is "free spinning".

    My second crack, but I believe that would be the safest way to identify the true zero point.

  8. #8
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    Re: Newbie Rocky questions...

    Took the rocky apart yesterday night and BOY! IS THERE A LOT OF GUNK IN THERE!! Only had it for 2 weeks and there was coffee grounds in every gap and crevice possible. Cleaned it out with a brush and vacuum cleaner and reassembled it. The screw which is at the bottom of the hopper to stop the setting go below zero is bent but I take it that it was done that way so that the hopper setting can get to "0" otherwise if it was straight, it would only get to 3. I didnt see the point for that anyway because the burrs touch lightly while spinning at 4 or 5 and so I take it the true zero is 4 or 5. At 6 onwards, there was no more metallic sound with the motor running (with no beans). Funny how that could have happened, I couldve sworn that when I first got the grinder, there was no metallic sound at the zero setting. Any chance that the bottom burrs may have slightly lifted?

    Also, I read somewhere about a click clack thing to put as the cover for the hopper and you can "pump" out the grinds caught in the chute.. sort of like the VacuVin thing... Where can i get one of those and what should I look for?

  9. #9
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    Re: Newbie Rocky questions...

    Quote from NTE..."I didnt see the point for that anyway because the burrs touch lightly while spinning at 4 or 5 and so I take it the true zero is 4 or 5. At 6 onwards, there was no more metallic sound with the motor running (with no beans). Funny how that could have happened, I couldve sworn that when I first got the grinder, there was no metallic sound at the zero setting. Any chance that the bottom burrs may have slightly lifted?

    Also, I read somewhere about a click clack thing to put as the cover for the hopper and you can "pump" out the grinds caught in the chute.. sort of like the VacuVin thing... Where can i get one of those and what should I look for?"


    Bottom bur should not have lifted, it should be firmly screwed to the carrier or frame, what you have now done is a proper clean out and reset to true zero. It is likely that when you first got Rocky the zero setting appeared to be different due to some leftover stuff in there from testing, which would have had time to set hard by the time the unit finished being shipped.

    Click Clack containers can be purchased from Woolies, and probably other supermarkets, many of them have the correct size lid to fit Rocky, and they are relatively inexpensive.
    They have a flexible seal that fits inside the bean hopper, and a button on top to release the seal. A quick push down will build up pressure inside the hopper, which is typically released out through the chute, thereby cleaning most loose grinds out. Push button down to lift lid out to avoid creating vacuum in hopper and sucking any loose grounds back in.

    Bullitt

  10. #10
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    Re: Newbie Rocky questions...

    Thank you. Most helpful. Will look out for the Click Clack.

  11. #11
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    Re: Newbie Rocky questions...

    You can get a click clack lid that fits perfectly in the rocky hopper at bigw.

  12. #12
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    Re: Newbie Rocky questions...


    My wife found one at K-Mart so theyre readily available. Clik Clak Part# 3015 1ltr container.


    b4b.

  13. #13
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    Re: Newbie Rocky questions...


    Ill share some of my experiences with my Rocky grinder with you, but it does sound like your grinder is working "normally".

    When I bought my grinder and turned it on at the "0" position there was no grinding noises.

    After months of use, I began to notice that the grinder was making noises like the burrs are touching after all the beans have been exhausted from the hopper. Sounded like the grinder was set to the zero position, yet my grind wasnt at a level where it was too fine to choke the espresso machine.

    What Ive worked out is that if I pressed onto the hopper in a certain way, the burr noises will go away but if I let the hopper go, the sound of the burrs touching would come back. What Ive determined based on this is that the hopper has some "play" in it, which accounts for the burrs touching because they are not perfectly level with one another.

    I suspect that the Rocky is built to some sort of tolerance and this tolerance issue shows up when grinding coffee for an espresso. If I was grinding for French Press, the amount of play in the hopper is not large enough to create any burr noises after the hopper has emptied its beans.

    Hope this helps!


    Lawrance




  14. #14
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    Re: Newbie Rocky questions...

    What Ive determined based on this is that the hopper has some "play" in it,
    Hopper is fastened to the top burr carrier, any play would be loose thread tolerance which allows Rockys top burr carrier to rock, resulting in inconsistent grind :(, not to worry a bit of teflon tape and all will be well. 8-)



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