SM74 delivery fan & delivery table lift error

Discussion in 'Heidelberg Printing Presses' started by Bert Hews, Mar 25, 2018.

  1. Bert Hews

    Bert Hews Member

    Joined:
    Sep 2017
    Messages:
    11
    Location:
    Fiji
    My SM74 is having problems with the 2 delivery fans. It's not working as it should and the delivery table cannot go upwards. It can only go downwards. Need advice.
     
  2. exheidmech

    exheidmech Senior Member

    Joined:
    May 2009
    Messages:
    674
    Location:
    USA
    More details needed. Is it a high pile or low pile SM74, also what year is it
     
  3. Bert Hews

    Bert Hews Member

    Joined:
    Sep 2017
    Messages:
    11
    Location:
    Fiji
    Low pile, 1999 SM74
     
  4. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    1,176
    Location:
    Managua,Nicaragua
    Hi sir
    Good day
    Please test the terminals for Voltages of the delivery fans;
    1) Delivery fans 12M4+M5 = Voltages 3 phases, it does not matter if there are coming with 220Vac, or 380Vac
    2)Or if they are FAN sheet brake:12 m15+16+17 etc
    3) Look for loose connection or bad contacts.
    4) If there are voltage the motor can be faulty.
    5) If there are NOT test the c. breaker or fuse for them. Look for the schematic diagrams coming with his machine
    Let me know.
    Blessing
    superchock@yandex.com
    celular+WhatsApp:+50588611441
     
    Bert Hews likes this.
  5. Bert Hews

    Bert Hews Member

    Joined:
    Sep 2017
    Messages:
    11
    Location:
    Fiji
    Hello sir,
    I have a problem too with the delivery table lift(low pile). It can only go downwards, it can't go upwards.
     
  6. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    1,176
    Location:
    Managua,Nicaragua
    Good day sir
    Please test the switch and sensors:
    1) 12S45 +12S38+12S46+12S39+12b6912s33+12S34A
    See the schematic, and look for disajustments+Loose wires, Dirty contacts, or broken,
    2) Look for if there are Voltages or Interrupt.
    3) This is controller by board SEK in SM 74
    Let me know.
    Blessing
    superchock@yandex.com
    celular+WhatsApp:+50588611441
     

  7. Bert Hews

    Bert Hews Member

    Joined:
    Sep 2017
    Messages:
    11
    Location:
    Fiji
    I don't have a schematic diagram to properly identify which sensor and switch connects to what board or contactor, etc. If you have a schematic diagrams, heres my email: alberth495@gmail.com
     
Loading...

Share This Page