Results 1 to 31 of 31

Thread: Super Jolly problems

  1. #1
    Senior Member
    Join Date
    Jan 2008
    Posts
    105

    Super Jolly problems

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hi,

    I purchased a secondhand Super Jolly from a cafe that was closing down and after getting it home found that the motor was quite noisy. I brought the grinder down to a repair center to get it checked out if it was an easy problem to fix and I probably didnt tell them what I wanted properly as they changed the burrs and said that they couldnt fix the noise.

    I asked them if they could change the burrs back to the original ones so I could return the grinder but they had thrown them out. I was just wondering if any kind soul has a set of old burrs which they could part with as it seems a little silly to pay for new burrs and return the grinder. :-[

    Also, would anyone know what could be causing the noise and if it could be fixable? When I turn the grinder on, its louder than my previous grinders grinding beans even when it is empty.

    Any help would be really appreciated. Thanks!

    Cheers,
    Tim

  2. #2
    Senior Member Koffee_Kosmo's Avatar
    Join Date
    Apr 2008
    Location
    Brisbane
    Posts
    5,117

    Re: Super Jolly problems

    Griffster

    My advice first
    Is to find someone with a super jolly and compare the noise level
    It could be normal

    If not it could be something simple (I know it just had a service)
    But unless you tighten every screw, nut and bold
    Including hopper and doser internals you will never know

    I would not accept there word for it
    What has it cost you so far

    KK

  3. #3
    Mal Dimal's Avatar
    Join Date
    Oct 2004
    Location
    Warwick, QLD
    Posts
    17,584

    Re: Super Jolly problems

    Quote Originally Posted by griffster link=1222952979/0#0 date=1222952979
    Also, would anyone know what could be causing the noise and if it could be fixable? When I turn the grinder on, its louder than my previous grinders grinding beans even when it is empty.
    Everythings repairable for a price ;)....

    Most likely just the motor bearings Tim. Its an easy enough job to do if you have all the correct tools and the bearings would be available from most bearing service suppliers. Alternatively, you could remove the motor and drop it into a motor rewind shop and ask them to replace the bearings for you. More expense involved doing it this way but it should be a walk in the park job for them. All the best mate, :)

    Mal.

  4. #4
    Senior Member
    Join Date
    Jan 2008
    Posts
    105

    Re: Super Jolly problems

    Thanks Mal, KK.

    The people I talked to at the place I brought it to get checked out agreed that the noise wasnt usual, and I would have thought so as well after hearing it the first time I turned it on. My first thought was that the burrs were too close together, but even with the top burrs totally removed the noise is pretty excessive.

    Is there a way to tell if its the bearings or if its a more serious problem such as a bent shaft? And is there a tutorial anywhere on how to replace or even check if its the bearings making the noise?


  5. #5
    Mal Dimal's Avatar
    Join Date
    Oct 2004
    Location
    Warwick, QLD
    Posts
    17,584

    Re: Super Jolly problems

    Gday again Tim,

    I really doubt that the shaft would be bent mate but is easily detectable after the motor is removed and the Rotor extracted. If the noise has a predominantly low frequency rumble then it is almost certain to be the bearings, and probably the large Thrust Ball Bearing closest to the burrs. Bearings are surprisingly cheap to buy and as I mentioned, with the right tools available are quite easy to replace too. If you think it is all starting to sound a bit doubtful mate, then Id return it and ask for a refund and put the whole episode down to experience.... :-?

    Cheers Tim,
    Mal.

  6. #6
    Senior Member
    Join Date
    Jan 2008
    Posts
    105

    Re: Super Jolly problems

    Hi Mal,

    Thanks for all the great advice and assistance. Sounds like it could be the bearings but Id really have no idea of how to replace them unfortunately so Ill probably just put everything down to experience.

    If I did want to try changing the bearings, is it easy to remove the old ones from the Super Jolly and put the new ones in? How long would you expect something like that to take? I searched for instructions on how to do this, but couldnt find any. :-/


    Thanks,
    Tim

  7. #7
    Senior Member
    Join Date
    Mar 2008
    Posts
    554

    Re: Super Jolly problems

    If you can get the motor out on your own, just take it to a motor repair shop. They will have the tools and knowledge to replace the bearings as well as check the balance, condition of the armature, straightness of the shaft, etc..

  8. #8
    Senior Member Koffee_Kosmo's Avatar
    Join Date
    Apr 2008
    Location
    Brisbane
    Posts
    5,117

    Re: Super Jolly problems

    To remove and replace the bearings you may need a press
    An auto electrician could also do it

    KK

  9. #9
    Senior Member
    Join Date
    Jan 2008
    Posts
    105

    Re: Super Jolly problems

    Thanks Randy, KK.

    Ill check it out & see how easy it is to get the motor out. Ive heard that some people have problems with that so if I hit the same difficulty Ill just return the grinder.


    Cheers,
    Tim

  10. #10
    Senior Member
    Join Date
    Apr 2007
    Posts
    596

    Re: Super Jolly problems

    I have bought this grinder from Griffster so I thought I may as well continue the thread so CSrs who have contributed can see how it went.
    It sure did make a din, unusable IMO, turning the lower burr by hand felt like a crook bearing so I decided to take a punt and I left with a new project(the other one is under the carport but thats another story). A bit of googling and I picked up enough clues to disassemble it and make a start. Removing the doser revealed the motor housing, it sounded like the rotor was rubbing on the stator, but it was only the bearing noise traveling, gave me a few anxious moments though. The SJ motor doesnt come out, the grinder needs to be dismantled, not a big deal. Top bearing is in the main housing and when the rotor is removed it is pushed out from within, bottom bearing is in the bottom plate, rotor goes out the bottom and then top bearing goes out the top, no need to remove motor casing/stator which seems to be pressed in. A couple of 6202-ZZ bearings later cost $5.40 each and I put it all back together on my workbench, the tailgate of my old Rangie on the front "lawn".
    It now hums along very nicely. :)
    This SJ is finished with the commercial grind 8-) so I removed the auto switches from the doser including bridging the cut out switch terminal, it only needs to respond to the hand switch now it is semi retired.
    Replacing the grind plates is next on the list, does anyone know where I can buy a pair of genuine Mazzer plates in Melbournes south east(Dandenong area).
    Someone has used a self tapper in lieu of a 4m bolt holding the doser on, I will have to run a 4m tap into it , that should fix that bit.
    One of Chris" short mini hoppers is also on the list.
    The spray painter at work has offered to give it a lick of paint but I may leave the black powder coat as is, the scratches dont show to bad.
    Thats about it, I really like this thing it is very well made.


  11. #11
    Mal Dimal's Avatar
    Join Date
    Oct 2004
    Location
    Warwick, QLD
    Posts
    17,584

    Re: Super Jolly problems

    Great pickup and an excellent outcome "vr".... 8-)

    Onwards and upwards, eh? :)

    Mal.

  12. #12
    Senior Member Koffee_Kosmo's Avatar
    Join Date
    Apr 2008
    Location
    Brisbane
    Posts
    5,117

    Re: Super Jolly problems

    Well done Vicroamer
    Your Silvia will thank you for it
    Now you have to give the Mazzer a macho name
    How about Silvia & Massimo ;)

    KK

  13. #13
    Senior Member
    Join Date
    Apr 2007
    Posts
    596

    Re: Super Jolly problems

    "Onwards and upwards"
    Yep, bit by bit, but I am bumping up against that ceiling again :(, (one of Chris run out Makins would be nice).

    "How about Silvia & Massimo"
    Massimo Mazzer, now that has a nice ring to it.

    A big thank you to Griffster for offering it for sale here before returning it. :)

  14. #14
    Senior Member
    Join Date
    Jan 2008
    Posts
    105

    Re: Super Jolly problems

    No probs and it was fantastic meeting you.

    Nice to hear that everything has been fixed and that youre happy with it! :)

    Im sure that this should cure your upgraditis for a long time if not permanently as it is a very big (and heavy) grinder in a domestic setting.

  15. #15
    Senior Member ozscott's Avatar
    Join Date
    Jun 2006
    Location
    BRISBANE
    Posts
    2,004

    Re: Super Jolly problems

    Good result mate. Good to see that the Classic is getting some tailgate workout too...not just good for picnics:) (said as an LR nut).

    I havent seen an SJ with custom paint before - why dont you take up the offer from the painter, and get is done is something like deep metallic cranberry...really make a kitchen statement! I would love to eventually do that to my machine and grinder...make them match or do complimentary colours!!!!

    Cheers

  16. #16
    Senior Member
    Join Date
    Apr 2007
    Posts
    596

    Re: Super Jolly problems

    My concern about giving it a paint job is the finish wont be as durable as the powder coat, in time it could look worse, plus for a good job the decals need to be removed including the serial number decal, the others can go but I prefer not to lose that one, masking is not a option you can always pick it. As for colour if I was to go ahead I have never thought of Cranberry, I was thinking more a Silver which we have kicking around, or maybe Ferrari Red which is popular at the moment, Cranberry would be different.

  17. #17
    Senior Member Koffee_Kosmo's Avatar
    Join Date
    Apr 2008
    Location
    Brisbane
    Posts
    5,117

    Re: Super Jolly problems

    You can get a name plate
    Stamp the serial number on it and pop rivet it on the underside
    If you can remove and re-use the serial sticker you can add that to the plate as proof

    Then you have a free hand to do anything even a Mazzer Mural

    Ha-ha :) New TV show pimp my grinder

    KK

  18. #18
    Mal Dimal's Avatar
    Join Date
    Oct 2004
    Location
    Warwick, QLD
    Posts
    17,584

    Re: Super Jolly problems

    There are some superb powder-coat colours available now "vr"; our local bloke has a huge range of metallics, candy colours, clear coats.... You name it. Also, there is always the "2-Pack" option. Some nice choices available there too... 8-)

    Mal.

  19. #19
    Senior Member
    Join Date
    Apr 2007
    Posts
    596

    Re: Super Jolly problems

    Two pack would be preferable. Removing the stator for powder coating looks to be quite a job going by a thread I googled(below), the second last post links to the finished project. 8-)
    http://www.toomuchcoffee.com/index.p...olly+doserless

  20. #20
    Mal Dimal's Avatar
    Join Date
    Oct 2004
    Location
    Warwick, QLD
    Posts
    17,584

    Re: Super Jolly problems

    Hi again "vr"...

    If you could strip the grinder frame down as much as possible, you would be able to drop the frame with motor stator into a motor rewind shop or auto-sparky shop and ask them to press the stator out for you. Should be a very straight forward task for them and you may even be able to persuade them to do it for you for a bagobeans... Worth a try anyway, ;)

    Mal.

  21. #21
    Senior Member
    Join Date
    Apr 2007
    Posts
    596

    Re: Super Jolly problems

    It turns out the silver I can get is two pack, that will be good enough for me, plus the price is right ;), also avoids the hassle of removing the stator and will look good as well.

    I have been useing it and I prefer the results of the Rocky :-?, the SJ tastes under extracted, though the grind is very consistent, it did a 30 second plus drip extraction without choking so it certainly can give a consistent grind but it lacks flavour, a bit slow to on a espresso grind as well, I am suspecting the donated grind plates, maybe they are generating a bit of heat and upsetting things, I think I need to fit new plates.

  22. #22
    Senior Member
    Join Date
    Mar 2008
    Posts
    466

    Re: Super Jolly problems

    It is possible they dont have genuine mazzer burrs in them. I find the SJ (Played around a little on one) superior to the Rocky - speed, better grind, and a doser that works (for home use still would want to mod it so it sweeps clean)

  23. #23
    Senior Member
    Join Date
    Apr 2007
    Posts
    596

    Re: Super Jolly problems

    "It is possible they dont have genuine mazzer burrs in them"
    I think your right which is why I am trying to buy a pair of genuine burrs around Dandenong.

  24. #24
    Senior Member
    Join Date
    Mar 2008
    Posts
    466

    Re: Super Jolly problems

    Contact coffee parts. Im pretty sure they sell genuine burs and the shipping doesnt cost that much.

  25. #25
    Senior Member
    Join Date
    Apr 2007
    Posts
    1,687

    Re: Super Jolly problems

    Theyre a bargain from CPs I think you get spare change from a 40sheet from memory + shipping.

  26. #26
    Senior Member
    Join Date
    Apr 2007
    Posts
    596

    Re: Super Jolly problems

    Sourced some genuine burrs, Mazzer 33d @ $75.08 + gst, Ill pay the extra and go with them rather than the cheaper non genuine.

  27. #27
    Senior Member ozscott's Avatar
    Join Date
    Jun 2006
    Location
    BRISBANE
    Posts
    2,004

    Re: Super Jolly problems

    Yep - go genuine (from what I have read).

    Cheers

  28. #28
    Senior Member
    Join Date
    Apr 2007
    Posts
    596

    Re: Super Jolly problems

    The new Plates have been installed and what a difference, faster and with a better tasting result, :) the old ones were well worn, grinding away rather than cutting. When I inspected the grinder I felt the plates needed replacing, however I had underestimated the price by about $20.00, I must have had a $US price in my head at the time, but its all turned out well in the end, new bearings and new genuine plates, Massimo is now working as Luigi intended.

  29. #29
    Senior Member
    Join Date
    Dec 2005
    Posts
    260

    Re: Super Jolly problems

    So CoffeeParts dont sell genuine parts? I was about to order a bunch of stuff from them but now Im not so sure...

  30. #30
    Senior Member
    Join Date
    Apr 2007
    Posts
    596

    Re: Super Jolly problems

    So CoffeeParts dont sell genuine parts
    In this case I dont know if the CP plates are genuine or copies, I wouldnt like to imply they were inferior to Mazzer branded plates its just for peace of mind knowing it will perform at its best I decided to ante up and pay the extra.

  31. #31
    Mal Dimal's Avatar
    Join Date
    Oct 2004
    Location
    Warwick, QLD
    Posts
    17,584

    Re: Super Jolly problems

    Theres a good chance that they are genuine....

    Mazzer pretty well make burr-plates for all the various manufacturers and I imagine thats where CP would get theirs from. A quick message off to Pedro would sort that out though.....

    Mal.



Similar Threads

  1. Super Jolly AUT help
    By Adam1982 in forum Grinders
    Replies: 1
    Last Post: 23rd April 2012, 09:55 PM
  2. Cleaning Super Jolly
    By cosmic_couple22 in forum Grinders
    Replies: 16
    Last Post: 21st April 2010, 10:46 AM
  3. super jolly tech
    By cafecruiser05 in forum Grinders
    Replies: 13
    Last Post: 2nd July 2008, 10:40 PM
  4. super not so jolly!
    By askthecoffeeguy in forum Grinders
    Replies: 7
    Last Post: 1st September 2007, 12:12 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •