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Thread: Grinder disaster - Macap M4D stuck

  1. #1
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    Grinder disaster - Macap M4D stuck

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hello all,

    To my excitement I picked up my new Macap M4D today from Talk Coffee, so I took it home and to cut a long story short Chris told me I needed to make the grind coarser. I did so but in my wisdown misread the numbers and made the adjustment finer instead, and without a great deal of force the plastic has threaded :(

    I contacted Chris and I have been advised me that I will now need to buy the plastic sprocket and the burr carier as he was quite sure the plastic sprocket wasnt sold seperately. Spew.

    I was told that I could still use the grinder by taking the worm drive off and turning the collar clockwise (ie. the proper coarser direction), but it seems the burrs are stuck shut and will not move no matter how much I try to turn the collar - even with a tea towel.

    Im so depressed by this outcome, as I was really looking forward to making my first half-decent cup of coffee at home :(


  2. #2
    A_M
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    Re: Grinder disaster - Macap M4D stuck

    Quote Originally Posted by 3A2220143823222D3F4B0 link=1259987028/0#0 date=1259987028
    Hello all,

    To my excitement I picked up my new Macap M4D today from Talk Coffee, so I took it home and to cut a long story short Chris told me I needed to make the grind coarser. *I did so but in my wisdown misread the numbers and made the adjustment finer instead, and without a great deal of force the plastic has threaded :(

    I contacted Chris and I have been advised me that I will now need to buy the plastic sprocket and the burr carier as he was quite sure the plastic sprocket wasnt sold seperately. *Spew.

    I was told that I could still use the grinder by taking the worm drive off and turning the collar clockwise (ie. the proper coarser direction), but it seems the burrs are stuck shut and will not move no matter how much I try to turn the collar - even with a tea towel.

    Im so depressed by this outcome, as I was really looking forward to making my first half-decent cup of coffee at home :(
    If ya can not turn teh collar manually and by the use of tools to enable you to get a better grip... I would follow up and take it back to Chris...

    If it was not changed or adjusted in the shop and you have been unable to change it.. Then either faulty unit at the outset (Warranty ?) or you have been doing it wrong ;)

    Let us know how it all goes..

    Dont let the post purchase dissidence get ya down... They are a great grinder...



  3. #3
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    Re: Grinder disaster - Macap M4D stuck

    Depending on how much damage has been done, the plastic wheel can be moved on its mounting screws so that the stripped part of the wheel does not make contact with the worm gear - and you have a fully functional M4D again. (unsticking the burrs is another issue ...)

    charlie

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    Re: Grinder disaster - Macap M4D stuck

    Quote Originally Posted by 200F0604132C000F0006040C040F15610 link=1259987028/1#1 date=1259987277
    the use oftools to enable you to get a better grip
    What tools do you suggest? Im trying to think of ways to get it loose without causing any superficial damage.

    Chris will be able to look at it, however in the meantime I would like to be able to use it. I assume Chris will have the same problem too?

  5. #5
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    Re: Grinder disaster - Macap M4D stuck

    Quote Originally Posted by 614E5F69474A4840684A4D4E2B0 link=1259987028/2#2 date=1259988518
    Depending on how much damage has been done, the plastic wheel can be moved on its mounting screws so that the stripped part of the wheel does not make contact with the worm gear - and you have a fully functional M4D again.

    Correct.....thanks for this. Problem is I need to get the burrs to play ball first and I need to get the plates unstuck :(

  6. #6
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    Re: Grinder disaster - Macap M4D stuck

    A couple of screwdrivers through the holes in the top burr carrier will give you some leverage. Go the right way!

    charlie

  7. #7
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    Re: Grinder disaster - Macap M4D stuck

    Quote Originally Posted by 7659487E505D5F577F5D5A593C0 link=1259987028/5#5 date=1259989092
    A couple of screwdrivers through the holes in the top burr carrier will give you some leverage. Go the right way!

    charlie
    still no luck. Trying to turn the collar clockwise.

  8. #8
    TC
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    Re: Grinder disaster - Macap M4D stuck

    :( qik,

    What happens at the grinder collar is what its all about and the collar has clear wedge shaped markings showing the direction of coarse (wide) and fine (narrow).

    My advice is to remove the worm drive and then unscrew and reorient the plastic collar on the upper burr carrier so that you have some undamaged teeth in the vicintiy of the worm drive.

    If youre lucky, you will then have sufficient purchase to be able to remove the upper burr carrier without resorting to more violent and damaging techniques.

    Beyond that, I see no other option other than to try Charlies method as brute force might be required. The worm drive offers massive reduction to allow precision. This also allows for massive leverage- with has now been used to jam your burrs together. If youre lucky, the burrs should still be ok.

    Hopefully, we will be able to source a new collar for you without too much delay. I am unsure as what parts are available for sale. You may have to purchase the entire upper burr carrier.

    Hope youre up and running soon...

    Chris

  9. #9
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    Re: Grinder disaster - Macap M4D stuck

    Quote Originally Posted by 5A6F6265514D6168686B6B0E0 link=1259987028/7#7 date=1259991038
    :( qik,

    What happens at the grinder collar is what its all about and the collar has clear wedge shaped markings showing the direction of coarse (wide) and fine (narrow).

    My advice is to remove the worm drive and then unscrew and reorient the plastic collar on the upper burr carrier so that you have some undamaged teeth in the vicintiy of the worm drive.

    If youre lucky, you will then have sufficient purchase to be able to remove the upper burr carrier without resorting to more violent and damaging techniques.

    Beyond that, I see no other option other than to try Charlies method as brute force might be required. The worm drive offers massive reduction to allow precision. This also allows for massive leverage- with has now been used to jam your burrs together. If youre lucky, the burrs should still be ok.

    Hopefully, we will be able to source a new collar for you without too much delay. I am unsure as what parts are available for sale. You may have to purchase the entire upper burr carrier.

    Hope youre up and running soon...

    Chris

    OK Chris we gave this a shot and it worked ;D ;D ;D I rotated the collar so I could use the worm drive and to give it some assistance we also used two allen keys in holes in the burr carrier. Worked a treat.

    Grinding now and apart from some clumping, the coffee grind looks very consistent so the burrs havent been damaged (thank god). This was the grinders first duty too so I expect the burrs to need bedding in and hopefully the clumping will die down a little?

    Christened the grinder with some dry processed Ethopian Harrar Longberry. Ive never had coffee this good at home (yes I know its only a stovetop but the taste in the cup has improved markedly).

    Im so happy its not funny. I was so depressed lying in bed letting the weekend waste away...................

    Now lets hope I can just get the collar without having to buy the burr carrier! For now and into the near future, the current arrangement is acceptable.

    Woo hoo!

  10. #10
    Senior Member Dennis's Avatar
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    Re: Grinder disaster - Macap M4D stuck

    Quote Originally Posted by 685D5057637F535A5A59593C0 link=1259987028/7#7 date=1259991038
    My advice is to
    Quote Originally Posted by 4D5557634F54555A483C0 link=1259987028/8#8 date=1259997369
    OK Chris we gave this a shot and it worked
    Hes da Bomb! 8-)


  11. #11
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    Re: Grinder disaster - Macap M4D stuck

    The secret with learning how to use any grinder with which you are unfamiliar, is to never run the grinder without beans. This way, you can at least see the effect of adjusting the grind one way or the other by observing the resulting ground coffee. And of course.... Easy does it. Goes without saying but always seems to require reiteration.... ;)

    Mal.

  12. #12
    Senior Member GregWormald's Avatar
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    Re: Grinder disaster - Macap M4D stuck

    If you do not need the full circle of the collar, and only grind for espresso, then you may not need to replace anything. No matter what the beans, my M4D collar never moves more than a cm or so to get the grind right.

    The other option is to rebuild the collar with some epoxy--say JB Weld or similar. After all it doesnt really need to be very strong.

    Its a great grinder.

    Greg



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