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Thread: Bean jams in my Lucy (Rocky)

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    Bean jams in my Lucy (Rocky)

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Gday all, Occasionally and randomly I keep getting bean jams in my grinder. I either have to give it a good shake (not easy it weighs 30kg) or unwind to full coarse or force the beans gently under the guard in the bottom of the hopper. Doesnt anybody else experience this problem? How can I avoid it?

    Thanks, Andrew. [smiley=smiley.gif]

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    Re: Bean jams in my Lucy (Rocky)

    Yep, if the beans are large this has happened to me (on a Rocky).

    The space between the finger guard (black thingy) and the walls as well as the opening to the grind plates is too small.
    I have heard some people remove this finger guard. I havent done it, it may cause other issues?

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    Re: Bean jams in my Lucy (Rocky)

    This often happened with my Rocky.
    With the machine OFF, with my fingers I gently pushed the beans down between the finger guard and the side of the hopper. This always worked for me. Just disturbing the beans under the guard was enough.

    Occasionally with the Rocky I would take the finger guard off and remove the hopper and give the top of the burrs a good clean and vacuum. With oily beans this area does gum up a lot. This makes it difficult for the beans to drop into the burrs.
    dumiya


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    Senior Member Yelta's Avatar
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    Re: Bean jams in my Lucy (Rocky)

    Quote Originally Posted by 3A2B3337273F5E0 link=1275045182/2#2 date=1275093974
    Occasionally with the Rocky I would take the finger guard off and remove the hopper and give the top of the burrs a good clean and vacuum.With oily beans this area does gum up a lot.This makes it difficult for the beans to drop into the burrs.
    Have owned a Rocky for over 9 years, the first modification I made was to remove the finger guard completely, its lived in a box with other useless coffee gear ever since.
    Removing the guard resolved most feed issues and makes the top of the burr area easier to brush clean. ;)

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    Re: Bean jams in my Lucy (Rocky)

    Thanks for the replys.

    It seems its a common problem that is easily solved. I would like to keep the finger guard in place so it can do its job (never know who will poke something in there). Im going to replace the burs soon so when I do that job I will make some spacers to move the finger guard up a bit and give the beans a bit more clearance and see how it goes for a while.

    Andrew. :)

  6. #6
    A_M
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    Re: Bean jams in my Lucy (Rocky)

    Quote Originally Posted by 292B3F767673460 link=1275045182/4#4 date=1275097054
    Thanks for the replys.

    It seems its a common problem that is easily solved. I would like to keep the finger guard in place so it can do its job (never know who will poke something in there). Im going to replace the burs soon so when I do that job I will make some spacers to move the finger guard up a bit and give the beans a bit more clearance and see how it goes for a while.

    Andrew. *:)
    1: I did the mod and posted some time ago..

    2: Think the thread is BA but screws from bunnings etc is possiable

    3: An extra 10mm in length

    4: When at bunnings; buy a length of the thick black irrigation riser ... Yep right dia ;)

    5: Also get some cig filters.. The Slims are the best and get two at a time and squeeze together and push into the screw holes when finished.. Acts as a plug and makes it easer to get access to teh screws next time..

    Outcome.. Ya can use ya fingers to give teh beans a little push.. A few more beans sit such that they carry more weight AND ya can get a bent brush in to give a quick clean,...

    Simple.

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    Re: Bean jams in my Lucy (Rocky)

    Hi Andrew,

    Ive got a 2004 lucy, but never had a jam with beans. When did you last give it a good clean? Just wonder if there is a build of old coffee somewhere that is preventing beans dropping down, making the hole smaller.

    I also did the stepless mod (used 4mm black irrigation pipe) which has been great.

    If you need specific Lucy/grinder help or info let me know. I know mine is slightly different to the mainstream rockys when stripping it down.

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    Re: Bean jams in my Lucy (Rocky)

    Quote Originally Posted by 517E7775625D717E7177757D757E64100 link=1275045182/5#5 date=1275099672
    I did the mod and posted some time ago..
    I did a couple of searches but maybe I used the wrong key words?

    Quote Originally Posted by 517E7775625D717E7177757D757E64100 link=1275045182/5#5 date=1275099672
    3: An extra 10mm in length
    Thanks AM for this info.

    Andrew. :)

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    Mal Dimal's Avatar
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    Re: Bean jams in my Lucy (Rocky)

    Quote Originally Posted by 4143571E1E1B2E0 link=1275045182/4#4 date=1275097054
    I would like to keep the finger guard in place so it can do its job (never know who will poke something in there). Im going to replace the burs soon so when I do that job I will make some spacers to move the finger guard up a bit and give the beans a bit more clearance and see how it goes for a while.

    Andrew. *:)
    This is a much better idea than removing the guard completely. 8-)

    Its not just a Finger Guard either... It also helps to maintain a consistent down-force on the beans within the throat of the grind chamber so that grind consistency remains unaffected. A column of beans, of the height of the hopper bearing down on beans within the grinder throat will likely result in a different grinds quality outcome than if this column is held at 4-5cm...

    Mal.

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    Senior Member Yelta's Avatar
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    Re: Bean jams in my Lucy (Rocky)

    Quote Originally Posted by 7855515D503C0 link=1275045183/8#8 date=1275222916
    Quote Originally Posted by 4143571E1E1B2E0 link=1275045182/4#4 date=1275097054
    I would like to keep the finger guard in place so it can do its job (never know who will poke something in there). Im going to replace the burs soon so when I do that job I will make some spacers to move the finger guard up a bit and give the beans a bit more clearance and see how it goes for a while.

    Andrew. *:)
    This is a much better idea than removing the guard completely. 8-)

    Its not just a Finger Guard either... It also helps to maintain a consistent down-force on the beans within the throat of the grind chamber so that grind consistency remains unaffected. A column of beans, of the height of the hopper bearing down on beans within the grinder throat will likely result in a different grinds quality outcome than if this column is held at 4-5cm...

    Mal.
    Guess it depends on the quantity of beans you put in the hopper Mal, during my time with Rocky, I seldom filled the hopper enough to cover the finger guard, however when I did the result was invariably a jam, with the resulting shaking of the machine and poking something under the FG to get things moving again.
    Removing the FG, as I said best thing I ever did to the machine, it may well have a minor affect on the coffee grounds, certainly nothing that that is detectable in the cup, and makes cleaning the top burr area and removing beans that inevitably lodge there a breeze.
    Dont know why Im defending my suggestion, worked for me, 9 trouble free years, but then, if ya dont like the idea, leave the thing where it is and put up with it.
    Lots of discussion on the subject here, http://www.coffeegeek.com/forums/search?RET=%2Fforums&DO=&Form_Search=rocky+finger+ guard&Form_Author=&Form_Forum=&Form_AsPosts=1&Form _Before=1&Form_Days=&Form_SortField=SearchRank&For m_Descending=1&Form_Submit=Search+Discussions ;)



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