Results 1 to 14 of 14
Like Tree2Likes
  • 2 Post By Casa Espresso

Thread: Bar pressure on ecm technika iv

  1. #1
    Senior Member
    Join Date
    Nov 2014
    Posts
    108

    Bar pressure on ecm technika iv

    Was wondering if anyone could help. My friends technika is running at 13 bar while pulling shots.. Have opened up the top but getting the sides off seems like a nightmare. Can anyone tell me where the nut is to adjust? Can't seem to find what I need on the net. It's just the vibe model not the profi

  2. #2
    Senior Member
    Join Date
    Nov 2017
    Location
    Maddington, Perth. Wa
    Posts
    438
    Is the right hand gauge the brew pressure?
    Id suggest its down near where the brew pressure piping comes from. Between the top of the vibe pump and the gauge take off point.

  3. #3
    Senior Member
    Join Date
    Nov 2014
    Posts
    108
    Yeah, I adjusted that down to 1.35 from 1.55 got the sides off though. So it's just the nut under the pstat? Was hoping it was something obvious like a screw head

  4. #4
    Senior Member
    Join Date
    Nov 2014
    Posts
    108
    Thought this might be it?

  5. #5
    Senior Member
    Join Date
    Nov 2014
    Posts
    108
    Sorry jackster, read your message wrong. Thought you were talking about the boiler pstat. Tracing the gauge now

  6. #6
    Senior Member
    Join Date
    Nov 2013
    Location
    Sydney
    Posts
    112
    I have the rotary pump model and the brew pressure adjustment is at the bottom of the machine. For the vibe pump version it should be just in front of the tank on top, you shouldn't need to take any panels off.

    I also Googled it for you and found this. You can see the screw in the beginning of the video

  7. #7
    Senior Member
    Join Date
    Nov 2014
    Posts
    108
    Must be a different model. No screw at the top. It was actually where I highlighted in the picture. All sorted

  8. #8
    Senior Member
    Join Date
    Nov 2013
    Location
    Sydney
    Posts
    112
    Good to know. So it is a rotary pump version machine? And the brew pressure adjustment screw is on the outside, at the bottom of the machine and no need to take any panels off?

  9. #9
    Senior Member artman's Avatar
    Join Date
    Jun 2006
    Posts
    2,249
    Rotary pump machines have a bypass on the pump head that is used to set brew pressure. The OPV on rotary pump machines is set to around 12 bar as a failsafe to bleed excess pressure if the bypass gets stuck.

    Cheers

  10. #10
    Senior Member
    Join Date
    Nov 2014
    Posts
    108
    Nah, it's a vibe pump. Just lowered it to 11.

  11. #11
    Site Sponsor Casa Espresso's Avatar
    Join Date
    Dec 2008
    Location
    Australia
    Posts
    732
    Remember Owlee, the indication at the gauge is different to what is at the group head, particularly with vibe pumps..

    You are on the right track though, 11 bar at the gauge should give you about 9 bar on this particular machine

    Cheers

    Antony
    www.casaespresso.com.au

  12. #12
    Senior Member
    Join Date
    Nov 2014
    Posts
    108
    Hey ant, yeah if it was at 12 I would have just left it. 13 seemed way too high. Friends stoked though, said he's getting less channeling and nicer shots

  13. #13
    Site Sponsor Casa Espresso's Avatar
    Join Date
    Dec 2008
    Location
    Australia
    Posts
    732
    Quote Originally Posted by Owlee View Post
    Hey ant, yeah if it was at 12 I would have just left it. 13 seemed way too high. Friends stoked though, said he's getting less channeling and nicer shots
    Well done Grasshopper!

    Those lessons on the BZ10 have taught you well

    My work here is done....
    Dimal and Owlee like this.

  14. #14
    Senior Member
    Join Date
    Nov 2014
    Posts
    108

    My mate just texted me... Saying he just noted the pressure gauge doesn't sit on 0 when not in use. Sits at 1 or 2. Got to say I didn't notice that .
    Will that effect the reading? So it's 11 atm, but if the gauge sits at 2 is that actually a 9 reading?

Posting Permissions

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