QM46 valves going out does anyone know where to get just the valve not the assembly

Discussion in 'Heidelberg Printing Presses' started by Knelson, May 12, 2017.

  1. Knelson

    Knelson Member

    Joined:
    Apr 2011
    Messages:
    34
    Location:
    Texas
  2. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    339
    Location:
    Managua
    Hi sir,
    let me know , model, s/n
    parts number, city or Country,and will quotate
    for you.
    Regards
    superchock@yandex.com
     
  3. Paul Cavanaugh

    Paul Cavanaugh Senior Member

    Joined:
    Dec 2009
    Messages:
    619
    Location:
    Kennesaw, GA
    Are you sure it is the 5/2 way valve or is it the air piston that failed? When the air piston has a leak the air back flows through the valve causing it not to close completely. The valve will sound like it is leaking because of this, even though it is not bad.
     
  4. Knelson

    Knelson Member

    Joined:
    Apr 2011
    Messages:
    34
    Location:
    Texas
    It is leaking out of the ports then the compressor cant keep up and quits until you have a working pressure And Heidelburg does not sell just the valve alone!
     
  5. junker1984

    junker1984 Senior Member

    Joined:
    Jan 2010
    Messages:
    430
    Location:
    US, Midwest
    Heed Paul's advice. Try pinching off (with pliers softened with rag) one of the air lines to/from the piston. If air leak stops, it's likely the piston and not the valve.
     
  6. Knelson

    Knelson Member

    Joined:
    Apr 2011
    Messages:
    34
    Location:
    Texas
    OK where can I get the piston, valve is cast, piston is plastic I cant find any parts or specs to rebuild?
     
  7. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    339
    Location:
    Managua
    Hi sir,
    let me know , model, s/n
    parts number, city or Country,and will quotate
    for you.
    Regards
    superchock@yandex.com
     
  8. Knelson

    Knelson Member

    Joined:
    Apr 2011
    Messages:
    34
    Location:
    Texas
    There is no part # Heidelburg only sells as a set hooked up to a $500.00 Ram, the ram is fine its listed in parts book Y-3 but they consider this all one piece as you can tell by pic. I can take it apart, I took two from another press
     
  9. Paul Cavanaugh

    Paul Cavanaugh Senior Member

    Joined:
    Dec 2009
    Messages:
    619
    Location:
    Kennesaw, GA
    Heidelberg only sells the entire air piston as there is no way to determine if there is damage to the inside cylinder walls. It does no good to replace internal parts when air can still leak past them. I personally have seen the inside of these cylinders scarred from trash going through them. Also when you replace these pistons be sure to measure the length of the stroke from the old one, these dimensions are important to transfer to the new one.
     
  10. Knelson

    Knelson Member

    Joined:
    Apr 2011
    Messages:
    34
    Location:
    Texas
    I totally agree, this is why I want to purchase the valve by itself, not the assembly w/ram Where would you getting these pistons if you were going to rebuild it
     
  11. Paul Cavanaugh

    Paul Cavanaugh Senior Member

    Joined:
    Dec 2009
    Messages:
    619
    Location:
    Kennesaw, GA
    The valve is probably not the problem. They rarely fail.
     
  12. junker1984

    junker1984 Senior Member

    Joined:
    Jan 2010
    Messages:
    430
    Location:
    US, Midwest
    Given its not proprietary, punch in Herion with their part number, which should be on the component, see where that takes you. But really, why not just get it over and order from someone you know has what you need...Heidelberg.
     
  13. junker1984

    junker1984 Senior Member

    Joined:
    Jan 2010
    Messages:
    430
    Location:
    US, Midwest
    Hold on! I think you're not understanding what we're trying to get across to you...the piston (or ram, if you will) is not anywhere in your picture. What we're talking about is the component the valve assembly operates...whether it's ductor on/off, impression on/off, etc... Do you understand?
     
  14. Knelson

    Knelson Member

    Joined:
    Apr 2011
    Messages:
    34
    Location:
    Texas
    Yes i do, the piston I thought he was talking about was the one inside the valve, all I wanted was the valve, that's why that is the only thing pictured any way thanks for the comments The Co. HERION and Heidelburge have exclusive rights to that valve and won't sell to anyone but Heidelburg. Its like needing a new tire but you have to by the whole car
     
  15. ryobiTech

    ryobiTech Member

    Joined:
    Nov 2016
    Messages:
    25
    Location:
    the world
    I will have a look, I broke a couple of those machines, I have lots of spare parts in my workshop.
     
  16. Paul Cavanaugh

    Paul Cavanaugh Senior Member

    Joined:
    Dec 2009
    Messages:
    619
    Location:
    Kennesaw, GA
    My apologies for not being clear about the valve. (Good catch Junker1984) I was talking about the pistons the valve operates.

    Some background information on why Heidelberg does not sell parts of assemblies. Heidelberg has found over the course of 170+ years, in a majority of instances it is better to replace an entire component as opposed to replacing parts of it. While it may seem expensive up front, it turns out not to be in the long run. In regards to air pistons this is especially true. Most of the time you just push the ultimate failure of the item you are trying to repair down the road.
     
    junker1984 likes this.
  17. junker1984

    junker1984 Senior Member

    Joined:
    Jan 2010
    Messages:
    430
    Location:
    US, Midwest
    What we have here, Luke, is a failure to communicate...
     
  18. Paul Cavanaugh

    Paul Cavanaugh Senior Member

    Joined:
    Dec 2009
    Messages:
    619
    Location:
    Kennesaw, GA
    Some men you just can't reach...
     

  19. junker1984

    junker1984 Senior Member

    Joined:
    Jan 2010
    Messages:
    430
    Location:
    US, Midwest
    Nailed it, Paul :)
     
    Paul Cavanaugh likes this.

Loading...

Share This Page