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  • Super Jolly problems

    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
    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

    Comment


    • #3
      Re: Super Jolly problems

      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.

      Comment


      • #4
        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?

        Comment


        • #5
          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.

          Comment


          • #6
            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

            Comment


            • #7
              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..

              Comment


              • #8
                Re: Super Jolly problems

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

                KK

                Comment


                • #9
                  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

                  Comment


                  • #10
                    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.

                    Comment


                    • #11
                      Re: Super Jolly problems

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

                      Onwards and upwards, eh?

                      Mal.

                      Comment


                      • #12
                        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

                        Comment


                        • #13
                          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.

                          Comment


                          • #14
                            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.

                            Comment


                            • #15
                              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

                              Comment

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