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Rancilio Z9 LE two Group Lever rebuild

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  • #16
    Re: Rancilio Z9 LE two Group Lever rebuild

    Originally posted by 2E343032333038313F5D0 link=1276429634/11#11 date=1277017387
    Hi pwelsh

    Your machine will restore fine Im sure!

    We use our Z9 LE every day - its a very reliable machine including he mercury Pstat.
    Photo 21 looks like the valve from the boiler to the group (Part no 700366 on Coffeeparts).

    Clean it in Citric, replace the spring and check that the washer and valve stem thing is OK to re-use and youll be fine.

    I posted some tips and photos on HB Lever forum on how to disassemble the group. - let me know if you cant find them and Ill post here.

    Have fun !

    Cheers
    Simon
    Hi Mokka,
    I have this part on order but after cleaning in lemon juice all the scale is gone and all parts are like new the springs which you really can t see that well in the picture but they are there under all that scale, the bevel probe is all made of a type of rubber, I did see any washers though.

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    • #17
      Re: Rancilio Z9 LE two Group Lever rebuild

      Does anyone no what the fuction of the seating spring valve in photo 21 is for?

      Mokka provided a coffeeparts reference.

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      • #18
        Re: Rancilio Z9 LE two Group Lever rebuild

        Well I went next door and got the Lemons (15KG) and got the big Kenwood chef juicer out and had only got half way thru and had 4 litres.

        The parts arrived yesterday less the lever springs as there seems to have been a rush on this item international and coffeeparts ran out that same day. So I am on back order.
        Doesn’t really matter as I have so many other things to do.

        I will now move on to de-scaling the boiler.

        Has anyone taken out the relief valve and filled with citric acid from there. I thought this will save removing the electro plating off the boiler and would allow internal to be treated.
        I was going to take advantage off this method as I can still heat the whole lot as it is still able to be powered up this way.

        Added bonus is that the heater element will be de-scaled with out any chance of damage to the element insulators.


        Any ideas good or bad to doing this way guys?

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        • #19
          Re: Rancilio Z9 LE two Group Lever rebuild

          hey Peter

          looks good send me a better photo of the spring valve and ill give you the discription. done a few of these so know them pretty well.
          hope all is going well, will give you a call tomorrow to touch base

          ciao
          george

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          • #20
            Re: Rancilio Z9 LE two Group Lever rebuild

            well i have been a bit busy,
            So the spring valves in pick 21 came up like new after a soak in lemon juice.




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