Heidelberg 46-2 not picking up sheets / possible compressor problem

Discussion in '1-Color and 2-Color Offset Presses' started by lesliew, Dec 4, 2014.

  1. lesliew

    lesliew New Member

    Joined:
    Sep 2007
    Messages:
    4
    Hi

    Our Heidelberg 46-2 has stopped feeding sheets, we press the production button but the compressor does not come on. We were advised it might be the pressure switch so I ordered 2 used S24 & S27 pressure switches, simple enough to swop out but they didn't fix the problem.

    Anyone have any tips on where in the chain I should look next.

    The Compressor appears to be charging the tank as the arrow on the pressure valve is in the green and as best as possible we have checked for air leaks.

    Appreciate any advice.

    Leslie
    Location: Florida Space Coast
     
  2. MRFIXIT

    MRFIXIT Senior Member

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    Aug 2014
    Messages:
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    Location:
    U.K.
    Hello..the compressor that charges the tank is for pneumatics..there is another pump for the feeding.does this pump for the feed air run? It may be tripped or seized..i would check this first..thankyou..
     
  3. lesliew

    lesliew New Member

    Joined:
    Sep 2007
    Messages:
    4
    Forgive the stupid question

    How do I tell if its tripped, seems like the easiest thing to try first. Are we talking about M2 (Pressure Vacuum Pump)

    I guess if its seized then we would need to take it apart before identifying parts that might need to be replaced.
     
  4. NotAGooner

    NotAGooner Senior Member

    Joined:
    Dec 2007
    Messages:
    279
    Location:
    UK

    Look in the electrical cabinet for any tripped breakers and reset any if they are tripped, if it trips again, you have an electrical problem which will need the services of a electrician.

    It could be a short circuit or the compressor might be faulty.

    Good luck.
     
  5. kenyan2012

    kenyan2012 Member

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    Jan 2012
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    5
    Location:
    Nairobi, Kenya
    Was this problem ever resolved?
     
  6. lesliew

    lesliew New Member

    Joined:
    Sep 2007
    Messages:
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    We went to the trouble of swopping out the vacuum pump from our DI into the 46-2 but that didn't work. But it turns out to be a faulty relay on the HVK board. The P/N for the HVK board is A1.144.9116/01

    If anyone has a part number at hand for the relays on this board then I would consider just soldering in a new relay. We have a temporary workaround at the moment.

    I have been looking for a used board but not found anything yet.
     

  7. electrojf

    electrojf New Member

    Joined:
    Dec 2014
    Messages:
    1
    Location:
    quebec
    Hi im a new member, and i have the same problem but i know that the compress air and the vacuum pump work good but there is no feed sheet ! I check the signal for the clucht at the VSM CARD and K2M contactor goes on but not the clutch feeder? help me please its my first troobleshooting on this kind of machine:-( the machine is a MOVP and on the feeder control board, the ligths button working good so the coomand is there but no feed!!!
     
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