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Thread: New K3 touch.... Can't get it to work?

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    New K3 touch.... Can't get it to work?

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hi, just got my new K3 touch grinder, and feel really stupid because I can't get it to work. The tiny instruction manual is not very helpful at all.

    it rotates easily to the coarse setting and grinds no problem, but when I rotate it toward the fine setting it won't go past the half way mark. If I twist it really hard it rotates a bit further but then I try to grind coffee and the machine makes a straining sound and no grinding happens at all....

    Any help would be greatly appreciated!! I hope it's something simple and not a faulty machine.

  2. #2
    Senior Member Barry O'Speedwagon's Avatar
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    I have no idea what you mean by the half way mark (do you mean the point at which the silver 'button' is above the chute?). Are you running the grinder while moving towards the fine setting? If not, best to do so. Does the noise that you refer to sound like 'burr on burr' contact? You may have actually reached the zero point on the grinder. Empty the grinder, back the grind setting off a little from the point of 'resistance' or whatever it is that you are observing, check that there are no stuck beans, and then try grinding some beans.
    Last edited by Barry O'Speedwagon; 14th April 2013 at 07:52 AM.

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    Hi,

    The "contact point" of the blades on my K3 is between 35-40 mark on the collar, so screwing past that means you will lock the blades together and at best will grind them, not coffee. See the attached photo for my approximate setting for espresso (the metal knob should be aligned with the chute, but this changes slightly from one coffee to another). I found when going finer past about 40 mark, the machine chocks - the grinds become so fine that they don't come out and block the machine. This might be slightly different on your machine due to difference in the blade wear and (of course) the coffee you are using.

    In general, as Barry said, always have your grinder running while adjusting it. This is especially important when you make the grind finer, as if there would be any coarse coffee grounds left between the blades, they might compress and even seize the grinder. Also, you should not need much force adjusting this grinder, which tells me that you probably have interlocked the blades. It is a good idea to find the "contact point" of your machine when you first start to use it, there are youtube videos explaining this.

    The best way to correct it would be to unscrew the blades all the way to the very coarse setting without turning the machine on (cause the blades are locked). Then turn it on, listen if it rotates freely and see if you can grind any coffee. Then, while the machine is running, turn it slowly to the finer setting until you get the desired grind. Note, that it takes a couple of seconds for the old setting grinds to clear out and the grinds at current setting to come out of the chute. If you have seized it, the grinder needs to be opened and cleaned of the fine grinds inside.
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    Quote Originally Posted by Barry O'Speedwagon View Post
    I have no idea what you mean by the half way mark (do you mean the point at which the silver 'button' is above the chute?). Are you running the grinder while moving towards the fine setting? If not, best to do so. Does the noise that you refer to sound like 'burr on burr' contact? You may have actually reached the zero point on the grinder. Empty the grinder, back the grind setting off a little from the point of 'resistance' or whatever it is that you are observing, check that there are no stuck beans, and then try grinding some beans.
    Hi barry, thanks for the reply.

    I see the problem I'm having is that the little metal silver button is around the back of the grinder and no matter how I rotate it I can't get it around the front so it is sitting above the chute. It's almost like its been put on the wrong way round?

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    Quote Originally Posted by demq View Post
    Hi,

    The "contact point" of the blades on my K3 is between 35-40 mark on the collar, so screwing past that means you will lock the blades together and at best will grind them, not coffee. See the attached photo for my approximate setting for espresso (the metal knob should be aligned with the chute, but this changes slightly from one coffee to another......
    Hi demq, in your pic you also have the silver button facing the front sitting over the chute. Mine is around the back of the grinder and no matter how I rotate the collar I can't get the silver button over the chute?.

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    It sounds like they put the cover in wrong.
    There is a screw underneath the button that restricts the adjustment to a range of one full turn of the collar. In principle you might still be in range for espresso grind if they only missed 1/3 rotation (there are 3 screws holding the collar to the top blade assembly). Thus you might simply try and find the correct grind point moving from the coarse to fine.

    You can take the collar off and put it in correct position by removing the hopper and undoing the there black screws on top of the collar. Then it comes straight up.

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    Yeah my silver button sits just too the left of the chute. Maybe about 1cm left. My K3 is only 2-3 weeks old so not a lot of bur wear as yet.

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    Quote Originally Posted by demq View Post
    It sounds like they put the cover in wrong.
    There is a screw underneath the button that restricts the adjustment to a range of one full turn of the collar. In principle you might still be in range for espresso grind if they only missed 1/3 rotation (there are 3 screws holding the collar to the top blade assembly). Thus you might simply try and find the correct grind point moving from the coarse to fine.

    You can take the collar off and put it in correct position by removing the hopper and undoing the there black screws on top of the collar. Then it comes straight up.
    Yeah, thanks it looks like they put the cover on wrong - it's out by more than a 1/3 so I will take the collar off like you suggested and put it in he correct position.... By the way, how do I know what the "correct position" is?

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    Quote Originally Posted by nabsie View Post
    Yeah my silver button sits just too the left of the chute. Maybe about 1cm left. My K3 is only 2-3 weeks old so not a lot of bur wear as yet.
    Hi nabsie, my silver button is at the back completely 180* from where it should be.

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    Trial and error? See when the grind is close to what you want the button should be close to the front.

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    Quote Originally Posted by demq View Post
    Trial and error? See when the grind is close to what you want the button should be close to the front.
    Thanks! I will give that a go.

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    Quote Originally Posted by demq View Post
    Trial and error? See when the grind is close to what you want the button should be close to the front.
    Ok, the problem I'm having now is the stopper screw. My stopper screw underneath the collar is 1/3 of a turn to the right from the front... And the screw under the silver button hits it with only a 1/3 of a turn of the collar?

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    Why don't you simply put the black plastic collar 1/3 or 2/3 rotated forward/back with respect to the top metal assembly?

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    Quote Originally Posted by demq View Post
    Why don't you simply put the black plastic collar 1/3 or 2/3 rotated forward/back with respect to the top metal assembly?
    Ok, thanks for your help.

    can we start from the beginning. I have the collar off completely.

    I have rotated the top metal assembly anticlockwise until it can't go any further, I'm assuming this is max fine grind.

    Now what do I do next?

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    Here is a pic of what I see
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    Align the collar so the silver button is ~1/3 to the left of the chute. Tighten up the black screws and see that when you turn the collar anti-clockwise, the button travels all the way to the right and you have a full range of motion.

    Next start from the position where the button is on the right, make sure coffee goes through and then work to adjust the grind to espresso. If the grind at coarsest setting is too fine, turn off the grinder immediately, take off the collar and undo the metal part one rotation counter clockwise.

    If after the adjustment the button is still far from the chute, simply take off the collar and reposition it so the button is closer to the chute without rotating the top metal part.

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    Hmmm, it seems the stopper screw is in different place compared to mine. You might try to relocate it.

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    Quote Originally Posted by demq View Post
    Hmmm, it seems the stopper screw is in different place compared to mine. You might try to relocate it.
    Yes, I thought so.... I had a look and there is no other thread for the stopper screw so I can't relocate it.

    I will try your instructions from your last post and see how I go. Thanks again for your help.

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    Bob
    suggest you try the following -
    - remove the polished bung on adj collar
    - partly unscrew the phillips head screw (stop screw) out of the collar
    * this now allows full rotation in either direction of the collar
    - (with power cord out / unplugged), in counter clockwise direction ( finer grind setting)turn adj collar
    till the top burr seats on the bottom burr (*AT this point do not attempt to operate grinder)
    * with the top burr / collar off it takes at least 14 plus full turns of the collar to seat both burrs (rough guesstimate / from memory)
    - now in clockwise direction (courser grind direction) back off adj collar approx 10mins on the clock face.
    * you should now refit the stop screw and refit polished cap into the adj collar
    - plug grinder into power point,switch on operate grinder (there should be free rotation of the grinder burrs)
    - slowly turn adj collar untll the burrs lightly touch (fine metal rubbing sound), back off marginally till sound ceases
    - at this point I mark both the collar and the grinder outer case with a white marker pen - true zero
    -back off grinder adj collar 10 minutes on the clockface, mark corresponding point on grinder body
    now you should be fine to start trial and error for grind / tamp settings to suit your machine / beans / tastes
    as stated in many posts on here
    best of luck
    EA

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    Ok, it looks like I have the same problem I had before. When I rotate the collar to the finest setting and the screw hits the stopper it is still a very very coarse grind.

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    Quote Originally Posted by EspressoAdventurer View Post
    Bob
    suggest you try the following -
    - remove the polished bung on adj collar
    - partly unscrew the phillips head screw (stop screw) out of the collar
    * this now allows full rotation in either direction of the collar
    - (with power cord out / unplugged), in counter clockwise direction ( finer grind setting)turn adj collar
    till the top burr seats on the bottom burr (*AT this point do not attempt to operate grinder)
    * with the top burr / collar off it takes at least 14 plus full turns of the collar to seat both burrs (rough guesstimate / from memory)
    - now in clockwise direction (courser grind direction) back off adj collar approx 10mins on the clock face.
    * you should now refit the stop screw and refit polished cap into the adj collar
    - plug grinder into power point,switch on operate grinder (there should be free rotation of the grinder burrs)
    - slowly turn adj collar untll the burrs lightly touch (fine metal rubbing sound), back off marginally till sound ceases
    - at this point I mark both the collar and the grinder outer case with a white marker pen - true zero
    -back off grinder adj collar 10 minutes on the clockface, mark corresponding point on grinder body
    now you should be fine to start trial and error for grind / tamp settings to suit your machine / beans / tastes
    as stated in many posts on here
    best of luck
    EA
    i did all this and the grind is still really coarse?

    I'm about to give up and send it back.
    Last edited by 13bob; 14th April 2013 at 01:06 PM.

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    The best I can get at the finest setting is really coarse grinds like saw dust.
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    It looks like the top assembly is at least one revolution off. Try to take the collar off, turn the metallic part one revolution clockwise and try again.

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    I had this same issue and I needed to remove the stopper screw and wind the adjustment collar down further then reinstall the stopper screw. This allowed me to grind finer.

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    I suggest stop stuffing around with it if you don't know what's going on.

    Take it back to where you purchased it if possible and ask to be shown how to operate and clean the grinder.

    If not, put your ; location up and maybe there is someone near by with the experience or knowledge to help you out in person.

    I agree the instructions for the K3 may as well be toilet paper.

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    Thanks Steve, that's a fair point you make. I really don't know what the problem is.

    I am in south west WA and I bought the coffee machine and grinder from one of the well known sponsors here located in Melbourne. Sending it back is going to be costly.

  27. #27
    Senior Member Barry O'Speedwagon's Avatar
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    I'd give the vendor a ring first thing tomorrow morning, bob.

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    Thanks barry, I plan on doing just that. Hopefully I can get it sorted.

  29. #29
    KJM
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    Quote Originally Posted by EspressoAdventurer View Post
    Bob
    suggest you try the following -
    - remove the polished bung on adj collar
    - partly unscrew the phillips head screw (stop screw) out of the collar
    * this now allows full rotation in either direction of the collar
    - (with power cord out / unplugged), in counter clockwise direction ( finer grind setting)turn adj collar
    till the top burr seats on the bottom burr (*AT this point do not attempt to operate grinder)
    * with the top burr / collar off it takes at least 14 plus full turns of the collar to seat both burrs (rough guesstimate / from memory)
    - now in clockwise direction (courser grind direction) back off adj collar approx 10mins on the clock face.
    * you should now refit the stop screw and refit polished cap into the adj collar
    - plug grinder into power point,switch on operate grinder (there should be free rotation of the grinder burrs)
    - slowly turn adj collar untll the burrs lightly touch (fine metal rubbing sound), back off marginally till sound ceases
    - at this point I mark both the collar and the grinder outer case with a white marker pen - true zero
    -back off grinder adj collar 10 minutes on the clockface, mark corresponding point on grinder body
    now you should be fine to start trial and error for grind / tamp settings to suit your machine / beans / tastes
    as stated in many posts on here
    best of luck
    EA
    Just as a data point - my K3T in the tea room at work is 20 turns I guess there is a range of variability in this.

    @13bob - the way the thing works is pretty robust and simple - the mechanics of it are that the burr carrier is screwed down to the right area for espresso and the "collar" widget has that irritating stop to limit travel so you can't screw the burrs into eachother. When I had to dismember the grinder I "fixed" the issue we had with it being hard up against the stop by simply attaching the collar to alternative holes in the burr carrier. It was an easy fix.

    But yours does indeed look like it is multiple full turns of the carrier out! The pitch of the thread is very fine, so even 2 turns out is possible (although it is hard to make out the grind size accurately from a picture).

    Very nicely made grinders, IMHO. Kind of brick outhouse engineering which I like... particularly when random people use it!

    /Kevin



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