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Thread: Expobar Leva shower screen removal

  1. #1
    Sleep is overrated Thundergod's Avatar
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    Expobar Leva shower screen removal

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    While cleaning my machine the other day I noticed some coffee oil build up around the group head where the PF locks in.
    I worked out that my cleaning brush cant get at it because the shower screen prevents getting the brush to a 90 degree angle to the inside of the group head.

    In effect, the ledge formed where the PF locks in, is missed by the brush passing above it.

    The cleaner also misses this spot because it doesnt get a chance to act on this area if the instructions are followed to the letter.
    I dissolved some cleaner and managed to brush it onto the insides of the group head and let it flow down onto the ledge to soak the area, then cut up some scouring pad to poke in and brush at the gunk.

    To avoid future build up Im wondering if removing the shower screen will give my brush more angle tom work with.

    As the Expobar screen isnt held on with a screw, can someone tell me how to safely and easily remove it for cleaning?

  2. #2
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    Re: Expobar Leva shower screen removal

    Thundegod;

    You will need 2 small screw drivers ( flat preferable)... try to lose the group head shower slowly until it come out.

    Unfortunatly, E 61 it been design such a way that is not easy to clean the shower.

    If you need more instruction give me a call or drop over the shop and I will show you how to do it.


    Renzo

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    Re: Expobar Leva shower screen removal

    Not sure exactly where the oils are building up.....but

    What about a simple portafilter wiggle with the brew switch on and incorporating that in to your backflush routine once you have gotten rid of the gunk....continual portafilter wiggle will get hot water (and cleaner in there) hopefully disolving the oils before it becomes too much of a problem?

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    Flo
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    Re: Expobar Leva shower screen removal

    Quote Originally Posted by Wushoes link=1176173296/0#2 date=1176177234
    Not sure exactly where the oils are building up.....but

    What about a simple portafilter wiggle with the brew switch on and incorporating that in to your backflush routine once you have gotten rid of the gunk....continual portafilter wiggle will get hot water (and cleaner in there) hopefully disolving the oils before it becomes too much of a problem?
    Thats what I do on my Giotto after every brew session. If your Expobar is anything like my Giotto then the showerscreen is only a push fit..no screw required. The other thing is that when your group seal needs replacing you will have to remove the showerscreen to enable easy removal of the seal. Otherwise, the seal is more difficult to remove than it should be.

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    Re: Expobar Leva shower screen removal

    there is a good guide here. its for the pulser but pretty much the same as for my minore, so would assume it would be similar for the lever.

    http://www.expobarownersgroup.com/index.php?option=com_content&task=view&id=10&Itemi d=27

    I only do this every so often, and take a green scourer i have cut up into small pieces to scrub it.


    I also get grinds etc caught on the inside of the group slot and my brush wont always clean it. what I do when I backflush once a week is to get a dish towel (I have one that my mum cut up into 6 squares and hemmed for me which i use to wipe out the PF before I pull a shot) fold that up so you get a nice pointy triangle, wet it and force that in around the rim of the group. you then turn it around to wipe out the grinds the brush misses.

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    Re: Expobar Leva shower screen removal

    Thanks everyone.
    I guessed it would prise off but wanted to make sure.

    Renzo thanks - i know youre always there.

    Wushoes I wiggle the PF when backflushing but will need to add that to my cleaning routine as you suggest. Currently the cleaner doesnt get into the PF locking groove.

    Flo - push fuit - yes. I was buying some coffee this afternoon from Hazel and she explained that the group seal holds the screen in place.

    Clinto - good pics - thanks - yes it looks the same. The 4th pic showed the seal came out with the screen.


    I think I got most of it yesterday. Ill double check next clean. Ill make sure to get it all then. From then on, as Im now aware of the problem, I can keep on top of it.

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    Re: Expobar Leva shower screen removal

    Quote Originally Posted by Thundergod link=1176173296/0#5 date=1176192317
    Thanks everyone.
    I guessed it would prise off but wanted to make sure.



    Clinto - good pics - thanks - yes it looks the same. The 4th pic showed the seal came out with the screen.

    .
    yep mine group head gasket comes out as one with the shower screen and then seperates. Its a little tricky to get out and in but not all that hard really. having said that its the sort of thing I do maybe once a month. if the shower screen unscrewed i would do it every week but given teh need to remove the gasket as well I dont do it all that often.


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    Senior Member robusto's Avatar
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    Re: Expobar Leva shower screen removal

    Sometimes the supposedly difficult things are not so after all.

    I was dreading removing the shower screens to replace the group seals on the Grimac. I started reading about ice picks, screwdrivers, tapping screws into the seals and pulling them out with pliers....

    Then I finally tackled the job, trying to prise them out with smalll screwdrivers (much like youd use tyre levers on a bike wheel).

    Nothing budged. Gulp.

    Then, some lateral thinking. Throw away the tools, and just reach up with fingers and pull the shower screens down.

    They needed no coaxing, and slipped out. Much relief.

    -Robusto

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    Re: Expobar Leva shower screen removal

    Thanks Robusto Ill have to give that a go.
    I havent yet because the machine was hot when I was cleaning it.
    Ill have to let it cool down to remove and clean the screen the first time so I know how hard/easy it will be.

    In the long run it may not be needed as often if I can get the ledge clean to begin with and then keep it that way knowing the potential for build up if I dont.

    Its due to turn off soon so if its cool enough before I go to bed Ill try tonight.

  10. #10
    Flo
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    Re: Expobar Leva shower screen removal

    Quote Originally Posted by Thundergod link=1176173296/0#5 date=1176192317
    Flo - push fuit - yes. I was buying some coffee this afternoon from Hazel and she explained that the group seal holds the screen in place.
    Ah..different to my Giotto then. I have to pull the screen off to get the seal out easily. I also learned this the hard way on a Conti 3 Group Commercial machine at my Church. The seals were as hard as stone and leaking like sieves, so I decided to change them. Never having played with this type of setup before and only having experience with my Gaggia Classic at the time, I just started attacking the gasket. For about 15-20 mins I fought that beast before I discovered that the screen was a push fit, and once removed, the removal of said seal barely caused a fuss.

    Knowledge is a wonderful thing!

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    Re: Expobar Leva shower screen removal

    True Flo.

    Robusto I gave it a go but no luck on a simple grab and pull (and my karate hardened hands grip like a vice).

    So when I feel the need to remove it or when its time to change the seal, I will have to go the flat screwdrivers.


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    Re: Expobar Leva shower screen removal

    it is pretty easy to get off once you break the initial seal so to speak. A small screw driver with a bit of insulation tape around it to stop it scratching, prir off from 3 sides and you should then be able to pull it off with your hand.

    I would recomend it if you havent removed it yet. I didnt do mine for about 6 months as I had thought it was too hard. I was surprised at how dirty it was up in there behind the shower screen the first time I removed i. I backflush with cleaner once a week. now it is still grubby when i remove it every month or so.

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    Re: Expobar Leva shower screen removal

    Good to know Clinto.
    Ill get to it soon.

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    Re: Expobar Leva shower screen removal

    Got it off today after the usual cleaning routine.

    Needed to use a flat screwdriver which I covered with a cloth.

    Prised off fairly easily.

    I was surprised how thick the gasket is. *:o

    Not very dirty under there. Gave a bit of a scrub to remove some coffee oil stains high up in the head, that were no where near as bad as the ones I found last week where the PF locks in.

    Clinto, strange that mine wasnt as bad as you said yours was.
    You said you backflushed weekly with cleaner.
    So do I.
    I also backflush with clean water after every session.
    What about you?


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    Senior Member Dennis's Avatar
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    Re: Expobar Leva shower screen removal

    Quote Originally Posted by Thundergod link=1176173296/0#13 date=1176630298
    Got it off today after the usual cleaning routine.

    Needed to use a flat screwdriver which I covered with a cloth.

    Prised off fairly easily.

    I was surprised how thick the gasket is. :o

    Not very dirty under there. Gave a bit of a scrub to remove some coffee oil stains high up in the head, that were no where near as bad as the ones I found last week where the PF locks in.

    Clinto, strange that mine wasnt as bad as you said yours was.
    You said you backflushed weekly with cleaner.
    So do I.
    I also backflush with clean water after every session.
    What about you?

    TG - what exactly are you talking about here? Oh...shower screen....phew, thought it was some part of the anatomy ;D

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    Senior Member robusto's Avatar
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    Re: Expobar Leva shower screen removal

    I dont think TG has a bidet, Dennis.

    Good work, TG.

    -Robusto

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    Re: Expobar Leva shower screen removal

    That was weird. :o

    By the time I got back to this thread I read Robustos reply first.
    What the heck is he talking about?
    Oh, I see Dennis name mentioned.

    Quickly click on Page 1.

    Scrolling down I read again what I wrote and knowing Dennis as I do I could see it coming.

    I said when I got here that I liked being able to drop my guard somewhat.
    On the site that I admin I am known for my command of and fussiness for correct use of the English language.
    Here I thought I could relax.

    Now Im going to have to extra careful that there are no double entendres lest Dennis pounce. ;D

  18. #18
    Senior Member Dennis's Avatar
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    Re: Expobar Leva shower screen removal

    ...and nice to see you using a few smileys too TG :)

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    Re: Expobar Leva shower screen removal

    I will sometimes.
    Just put one in a post replying to Wushoes before I got back to this one.
    Its just that Im sparing with them.

  20. #20
    Flo
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    Re: Expobar Leva shower screen removal

    Quote Originally Posted by Thundergod link=1176173296/15#18 date=1176640515
    I will sometimes.
    Just put one in a post replying to Wushoes before I got back to this one.
    Its just that Im sparing with them.

    Why? Theyre free! *;) ;D :P :)

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    Re: Expobar Leva shower screen removal

    Quote Originally Posted by Thundergod link=1176173296/0#13 date=1176630298
    Got it off today after the usual cleaning routine.


    Clinto, strange that mine wasnt as bad as you said yours was.
    You said you backflushed weekly with cleaner.
    So do I.
    I also backflush with clean water after every session.
    What about you?

    that might be it as I am a bit lazy and dont do that. I also tend to leave my pucks in the PF too, although not sure if that would cause it.

    I will take some pics next time I take it off.

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    Re: Expobar Leva shower screen removal

    I kick myself everytime I forget a puck in the PF.

    I try to always clean everything before I drink my coffee.
    It doesnt take long at all.

    Occasionally Ill remember to remove the puck after Ive finished my drink.

    I just really hate it when I walk back into the kitchen ages later and realise the PF is in the locked position.
    It takes a lot more effort then to clean the basket and the grinds are baked a bit firmer onto the screen.

    Start with not leaving the pucks in.

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    Re: Expobar Leva shower screen removal

    Quote Originally Posted by Thundergod link=1176173296/15#21 date=1176949514

    I just really hate it when I walk back into the kitchen ages later and realise the PF is in the locked position.
    It takes a lot more effort then to clean the basket and the grinds are baked a bit firmer onto the screen.

    Start with not leaving the pucks in.
    Yeah I know what you mean Thundergod.... Ive done it a few times myself.... generally in a rush making lots of coffees.... do the last ones (one of which is always MINE)..... and then some time later wander past the machine.....OH NO .... the PF is still in the locked position...

    Just have to have more self discipline.... Note to self..... You just have to wait to enjoy your coffee.... :( :(

  24. #24
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    Re: Expobar Leva shower screen removal

    Dont be too hard on yourself about the self discipline JB.

    Remember, Im an auditor and a black belt; lots of discipline there, and I still slip up.

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    Re: Expobar Leva shower screen removal

    Quote Originally Posted by Thundergod link=1176173296/15#23 date=1176950279
    Dont be too hard on yourself about the self discipline JB.
    Yep, I know - but its just a very bad practice...... and something I must stop doing (even if only occasionally...)

    Mind you. Ive seen several cafes who do the same thing (not too bad when they are really busy)... and after knocking out the puck they often dont even clean out the dregs or flush the cr@p off the showerscreen....

    Makes you wonder what the brew temp of the next shot is??????

  26. #26
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    Re: Expobar Leva shower screen removal

    Its potentially worse when you light the three-burner barbecue to preheat for a coffee roast, come back inside the house.... and forget all it. :-[ :-[ :-[

    -Robusto




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    Re: Expobar Leva shower screen removal

    I have my grindstein right next to the machine to remind me to empty the PF. After I cleaned my screen for the first time I noticed just how much the oily buildup was affecting the taste of the coffee.

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    Re: Expobar Leva shower screen removal

    My knockbox is also right next to my machine sam.
    Maybe I should have got the red or yellow one.



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