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Thread: How to fix those dreaded em0480 problems for good

  1. #101
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    Re: How to fix those dreaded em0480 problems for g

    Just thought Id share my experience with the EM0480 and Sunbeam coffee service.

    I bought the grinder in January. Straight out of the box with the single filter, my 6910 choked even at the coarsest setting. Id read through the forums and was tossing up whether to try some home mods or return it. I rang Sunbeam, they told me to remove one of the spacers. This was easy to do and fixed the problem. Score one for Sunbeam.

    I told them that the grinder was pretty messy and they also sent me a clear plastic extension for the chute. Works well and looks OK. Score two for Sunbeam.

    They also sent me a pack of pre-ground coffee so that I could see what the "correct" grind for the 6910 should look and feel like. Nice touch, score three for Sunbeam.

    Last week, I was washing the hopper and the little three-legged guard in the middle broke away. I rang Sunbeam, told them what had happened and they sent me a new hopper (apparently they have had a few of these faults). No fuss and it arrived two days later. Score four for Sunbeam.

    So, all up, I have found Sunbeam to provide great service. Im fussy and Im impressed.

    Finally, one tip...When I was trying different grind settings to get a good pour on my 6910, I was a bit frustrated that returning to a particular setting on the EM0480 after trying a higher or lower one, would give a different result (I remember reading on this forum somewhere that a number of people were having a problem with the repeatability of the EM0480s grind setting). One thing that makes a difference is to always approach the setting from the one direction. In other words, if you are on 10 and want to go to 12, turn up two clicks. BUT if you are on 14 and want to go to 12, first of all go down below 12 (to say 10) and then turn up to 12. This is a common technique for mechanisms that have inherent slop, and the EM0480 certainly has slop. It works because it forces the slop to always be in the one direction and minimizes the variation. And if theres one thing I have learnt about making coffee, is that it is all about consistency and repeatability.

  2. #102
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    Re: How to fix those dreaded em0480 problems for g

    Quote Originally Posted by Puk Man link=1183436456/90#100 date=1204724107
    In other words, if you are on 10 and want to go to 12, turn up two clicks. BUT if you are on 14 and want to go to 12, first of all go down below 12 (to say 10) and then turn up to 12. This is a common technique for mechanisms that have inherent slop, and the EM0480 certainly has slop. It works because it forces the slop to always be in the one direction and minimizes the variation. And if theres one thing I have learnt about making coffee, is that it is all about consistency and repeatability.

    Sounds like you have had some experience as a safe cracker!

    Nice post BTW

  3. #103
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    Re: How to fix those dreaded em0480 problems for g

    I have a rather large steel door with a dial and a couple of handles on it, that needs opening, I wonder if you might be able to lend me a hand. myaha ha ha ha ha ha ..... its all good.

    Ray.

  4. #104
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    Re: How to fix those dreaded em0480 problems for g

    And the tread continues...

    With the uncontrollable urge to mod every thing i posses, the em0480 was the next thing to pull apart and start tinkering. firstly ill start by saying that iv always been happy with this grinder(considering its price point) however there was a lot lacking from the consistency of the grind settings and more importantly the grinds them selves.

    To mod or not to mod that is the question...... well thats been on my mind anyway.

    Thanks to the genus that is Ray C, I have attempted and finished this mod over the week end, a few days in and let me tell you its a completely new grinder. the grinder now produces a very consistent grind with no more clumping, strangely enough the grind noise is different too (sound more solid). The real test was in the cup, what was coming out now was a much more sweeter coffee with a more rounded flavor profile. doing the mod in one day and using the same beans before and after i knew this wasnt just my perception. my taste buds were telling me this wasnt a waist of time. Since doing the mod how is yours pulling up Ray C?

    tip for the brave: in the search for an appropriate material for the bushing, I came across a natural material that had been used for many years for this very purpose, Lignum Vitae!. This wood was used for bearing etc, back in the days for its self lubricating properties (heres a link were you can read in detail about it(http://en.wikipedia.org/wiki/Lignum_vitae). *This wood is some very rare stuff and I manage to track a little piece for my purpose. Shore this was a bit of effort but I like a good challenge and the cup tells me it was all worth it.

    I think iv put the upgraditis virus to lay dormant for a wile!

    your knowledge is indispensable Ray C
    Rancho.


  5. #105
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    Re: How to fix those dreaded em0480 problems for g

    Mate, Ive got a massively swollen head now, cant get my brain bucket (helmet) on. Its good to see that its all worth it though, my em0480 is still going really well, it was a very good mod.

    Ray.

  6. #106
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    Re: How to fix those dreaded em0480 problems for g

    I agree.. Ray was kind enough to send me a wooden bush and after many months, its been fantastic. [smiley=dankk2.gif] [smiley=tekst-toppie.gif]

  7. #107
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    Re: How to fix those dreaded em0480 problems for g

    Mate I posted the bush friday night but the post box probably wont get emptied till monday afternoon, we are a bit out of the way here, so having said that I would guess about wednesday youll have it, hopefully.

    Ray.

  8. #108
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    Re: How to fix those dreaded em0480 problems for good

    Hi all... first post - a newbie, and still learning.

    Had my 480 about a week, and could only just get pressure in the arc on the finest grind setting, and even then only by updosing, and extremely heavy tamping. Figured the grind was nowhere near fine enough.

    Anyway cheers ray- I just added a nylon plumbing seal between the two top washers (the smaller ones), and now grind happily on 18-20!

    Like a different machine. Sunbeams customer service have been too busy to answer today, so saved me hanging on again tomorrow!

    Wondering which of the other mods stops that clumping as that is my only other problem now... - the masking tape or the wooden spacer or both?

  9. #109
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    Re: How to fix those dreaded em0480 problems for good

    Im a newbie and have been grinding on the lowest setting with a 1 week old EM0480 grinder. I have had to pack in as much coffee as I can to the basket and tamp hard to slow the flowrate down. Sunbeam NZ are sending out some spacers. Thanks Sunbeam NZ. *:)

    The person I spoke to never heard of the EM0480x nozzle. I guess I can grab some PVC piping from somewhere.

  10. #110
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    Re: How to fix those dreaded em0480 problems for good

    Ok, so Sunbeam NZ sent me out 2 spacers for my new EM0480. I put both in and am currently grinding at around 9-10. Does that sound about right? When I install the top burr, I merely turn it until it falls into the slot, right? Thanks in advance.

  11. #111
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    Re: How to fix those dreaded em0480 problems for good

    Quote Originally Posted by 687D60637C6C67666A0F0 link=1183436456/109#109 date=1259354320
    Ok, so Sunbeam NZ sent me out 2 spacers for my new EM0480. I put both in and am currently grinding at around 9-10. Does that sound about right? When I install the top burr, I merely turn it until it falls into the slot, right? Thanks in advance.
    Sounds fine... The setting is a guide and once the system beds in and you have added a washer or two... They appear to remain stable..


  12. #112
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    Re: How to fix those dreaded em0480 problems for good

    Thank you. And thanks for the attachment. It makes things easier.

    I noticed a white paint dot on the lip of the upper burr, which I (without knowing any better) chipped it off when I first opened it up. There is a marker on the side of the upper burr. Was the white dot in the same spot as the side marker, and simply to help locate the side marker when the burr is sitting in place?

  13. #113
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    Re: How to fix those dreaded em0480 problems for good

    You are supposed to align both marks.

  14. #114
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    Re: How to fix those dreaded em0480 problems for good

    There is so much good stuff in this thread. Just registered to coffeesnobs because i was so impressed. next week the screwdrivers are coming out.

    i hate the slop in between intervals on my grinder - and the inconsistency is a pain.

    love your work ray C - youve addressed all concerns. maybe you should start selling an upgrade kit!!

  15. #115
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    Re: How to fix those dreaded em0480 problems for good

    Quote Originally Posted by 6460626C68676D626C657A090 link=1183436456/113#113 date=1260323426
    love your work ray C - youve addressed all concerns. maybe you should start selling an upgrade kit!!
    +1 :)

  16. #116
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    Re: How to fix those dreaded em0480 problems for good

    just found a material that is inexpensive and has appropriate mechanical properties. looks somewhere between teflon and nylon.

    i think my neighbor might have a lathe.

    http://www.hobbyparts.com.au/store/partslist/RODROUNDACETAL/bar/all/41/3/

    i just pulled the grinder right down to the seal - looks good for the mod.

  17. #117
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    Re: How to fix those dreaded em0480 problems for good

    Hi Guys, first post for me. I just bought an EM0480 and thought this cant be right, on the finest setting the thing was hopeless and I felt there were probably some answers out there in forum world. So big thanks to all the contributors here because it would seem the answers were in fact right here. I still dont know about me doing a full Ray C mod but I can probably manage a washer or 2, but is it worth it? I can go get a different machine but will I be sorry (keep in mind I would be getting a cheaper more basic grinder and will keep my current system of grinding by look and feel)

    thanks guys.

  18. #118
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    Re: How to fix those dreaded em0480 problems for good

    Update: I grind on 11 with most beans after adding both spacers/washers to the recently purchased grinder. So far its been good - although even with a piece of PVC elbow piping on the nossle I still make some mess - but alot less than before. :)

  19. #119
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    Re: How to fix those dreaded em0480 problems for good

    after pulling the grinder down i realise now how much grind gets stuck in the shoot. i only ever put enough beans in the hopper to grind as i need it (and store the rest in an air tight dark container). so after every shot, i make sure there are no beans/grind left and use a toothbrush to pull the grind out that is stuck in the shoot. not a fan of leaving woolworths grade stale grind in there!

    on another topic - just used high quality milk this morning (as opposed to the no frills) - hello latte art!

  20. #120
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    Re: How to fix those dreaded em0480 problems for good

    Quote Originally Posted by 4E6961617F060 link=1183436456/116#116 date=1261351273
    Hi Guys, first post for me. *I just bought an EM0480 and thought this cant be right, on the finest setting the thing was hopeless and I felt there were probably some answers out there in forum world. *So big thanks to all the contributors here because it would seem the answers were in fact right here. *I still dont know about me doing a full Ray C mod but I can probably manage a washer or 2, but is it worth it? *I can go get a different machine but will I be sorry (keep in mind I would be getting a cheaper more basic grinder and will keep my current system of *grinding by look and feel)

    thanks guys.
    Id take it back to the store and get a replacement.
    Youll see in the instruction book that an espresso grind should be around the 13 mark IIRC.
    A properly working 0480 shouldnt need the washer mod.

  21. #121
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    Re: How to fix those dreaded em0480 problems for good

    this is my grind on the finest, which is no good for my aeropress, only bought it a few days a go, back to the store I go:


  22. #122
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    Re: How to fix those dreaded em0480 problems for good

    That looks like the top burr isnt seated right, it has to be just right. It sits up if you dont push it down hard before you turn the top back around.

  23. #123
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    Re: How to fix those dreaded em0480 problems for good

    Quote Originally Posted by 2D263C273D2221394E0 link=1183436456/121#121 date=1263202629
    That looks like the top burr isnt seated right, it has to be just right. It sits up if you dont push it down hard before you turn the top back around.
    Brilliant! that was it! I just had to take out the top burr, move the grind ring around to the arrow, reseat the top burr and turn the grind ring back. Thanks alot chris, you saved me a drama! :D

  24. #124
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    Re: How to fix those dreaded em0480 problems for good

    Hey everyone! Im yet another person inspired to register with the site due to the great stuff going on in this thread. Now to my question:

    I have access to a decent workshop with lathes etc. and am keen to make one of the bushes for my EM0450, however Im not sure what dimensions I should make it. I know Ray said that the diameters are about 10.5mm ID and 17.5 OD, but what about the thickness?

    Does anyone have one of the ones that Ray kindly shipped out and access to a set of callipers to give an accurate measurement?

  25. #125
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    Re: How to fix those dreaded em0480 problems for good

    *bump*

    Hey all.

    I bought one of these guys a couple of months back and was wondering how many of the reported issues Sunbeam has actually addressed. I started off with a setting of around 15 and am now down to 8. Are Sunbeam still sending out shims? Also with the top burr Ive noticed that it kind of screws in anti-clockwise to the holder assembly before replacing the whole thing on the machine, does that sound right? If I merely align the whit dots it doesnt really seem to fit in place firmly.

    Cheers

  26. #126
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    Re: How to fix those dreaded em0480 problems for good

    Quote Originally Posted by 5D706B7C7A6D766B190 link=1183436456/124#124 date=1322605267
    I started off with a setting of around 15 and am now down to 8.
    Sounds like either wear and tear or incorrectly seated in the first place.

    Quote Originally Posted by 5D706B7C7A6D766B190 link=1183436456/124#124 date=1322605267
    Are Sunbeam still sending out shims?
    as far as I know

    Quote Originally Posted by 5D706B7C7A6D766B190 link=1183436456/124#124 date=1322605267
    Also with the top burr Ive noticed that it kind of screws in anti-clockwise to the holder assembly before replacing the whole thing on the machine, does that sound right?
    No.

    Quote Originally Posted by 5D706B7C7A6D766B190 link=1183436456/124#124 date=1322605267
    If I merely align the whit dots it doesnt really seem to fit in place firmly.
    What do you mean by firmly? Its either seated or not.

    Have you tried aligning the dots 180 degrees the other way?



    (I sold my 0450 a while ago so the above answers are* from memory)

  27. #127
    Junior Member deezarockin's Avatar
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    Thanks so much for this Ray! I've just modified my Sunbeam grinder with a thicker washer I found in the old man's shed...so far so good, now I just have to play with the grind settings for a perfect coffee...oh and I hate wasting good coffee beans so looks like it's more coffee for me today!!

    Cheers,

    PS this is my first post so thanks for making it a happy one!!

  28. #128
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    HI all,

    Managed to get a Nylon bush made for my EM0480 recently. The unit was overdue for a good clean out and is going great now and also producing some really fine grinds. Anyway if anyone is interested I will put the measurements below.

    Measured with digital caliper.

    Thickness = 3.20mm
    OD = 17.20
    ID = 12.04

    Shaft I believe is 12 mm so a slight clearance is preferred. Ideally you don't want the bush turning with the shaft as it will wear the outer rim. Once it beds in the bush should be stationary in the space provided.

    Its a push fit and is working fine, no burning or smell coming from the bush at all. Just make sure who ever turns it up that it has no burrs on the material internally or externally. When I put it together now I find I may have to remove one of the shims as there is less lateral movement in the shaft now and grinds quite fine.

    Good luck

  29. #129
    Doppio Ristretto
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    FWIW, I have had my 0480 for many years, and it still functions flawlessly, no slop in the shaft or burr, and a grind setting between 12-15 for my triple basket. No channeling, no problems.

    I guess it is because I regularly clean it, and it's lasted well.

    I must be the anomaly. I would be keen to explore a stepless mod on the dodgy one my parents have...

  30. #130
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    Acetal with migratory lubricant

    Quote Originally Posted by mikeandkels View Post
    just found a material that is inexpensive and has appropriate mechanical properties. looks somewhere between teflon and nylon.

    i think my neighbor might have a lathe.

    Rod - Round - Acetal - Page 3

    i just pulled the grinder right down to the seal - looks good for the mod.
    This looks very much like the Acetal copolymer with migratory lubricant I used to use back in the late '70s in my small plactics injection moulding plant back in NZ. Excellent for very long term usage if not at high rotation (which would cause it to overheat and start to soften). We used it for sail slides and other uses to stop small products sticking - probably ideal for sliders for screen doors, etc.

    The lubricant is put in during manufacture of the plastic raw material, and continues to migrate to the surface until there is no more - expect that this would take years in continuous use, forever in an occasional use like the grinder.

    Acetal Resin

    Turcite A & X | Polymer Plastics Company, LC | Carson City, Nevada

    I purchased my supplies back then from Hoechst, a German manufacturer. Brand was Celcon, or Celanese.


    JC

  31. #131
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    Hello Everyone I have a EM0480 grinder with the wobbly shaft described here. I would like to modify my grinder as mentioned in this thread and would like to know if anyone has any spare bushes of the dimensions described here or direct me to where I could possibly get some made. Many places can only make those if the order is for a few thousand, but no one would be willing to make a few. Your help is much appreciated.

  32. #132
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    Hi coffee gurus! Not many posts from me but I have lurked the "snobs" forum for a while with interest.

    This thread is awesome! Doesn't quite fix my problem but I was wondering if anyone had any clues...

    My EM0480 has gone well for a few years so I really can't complain however,
    I have recently replaced the burr's and now it doesn't seem to grind under load.
    When disassembled and powered it spins fine and looks all good but when the beans are in, the shaft makes the noise but is not spinning!
    Is it possible the shaft can disengage with the motor when under load? Slipping maybe?

    I am way out of warranty so might just have to spend the time stripping it down for a look. I would appreciate any advice.

    I might search "new grinder" in the meantime! *ha ha*

    Daz

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