Weird condition on SM74-2P

Andy muller10

Member
Joined
2023
Posts
45
Geo
Around the World
Hello dear Expert folks around the world,


I hope it finds you very well, friends. Here on a customer’s Heidelberg SM74-2P there is a very weird malfunction.

Each morning when they switch-on the press, malfunction item number 8 eight is coming up and the remedy is just a simple cold restart (switch-off: wait for some long seconds then switch-on) and this iconic error would disappeared.

Very rare they said icon number 13 was showing on display screen, but not every morning. (Less than two or three times).
malfunctions_sm74-jpeg.15892

I should add that a hard-reset has been done but didn’t help.

At the moment its mode is on straight-printing and they fear to change over to Perfect mode.

Very kindly what do you think and let me know all of your viewpoint please.


Best Regards,

Andy
 

Attachments

  • Malfunctions_SM74.jpeg
    Malfunctions_SM74.jpeg
    171.2 KB · Views: 320
Hi Andy,
Can you send a photo from exsisting faults?
 
  • Hi Andy,
    Can you send a photo from exsisting faults?

    Hello Mathew,
    As I said on text, they are printing right now, machine is working.

    just at morning after night rest time and back to work, so they switch on the press and this error message appears and after a simple restart (Main switch off/on) it disappeared.
    This is why I used the photos from Manual

    Hope it be enough clear to understand.

    Andy
     
    Check the sak low battery
    Hello Dear Adil,
    Thank you very much in advance for your kind feedback and guideline.
    And very sorry to say that I cannot allocate where the SAK:Speicher-Analogkarte or Memory Analog Board is. would you please let me know where is this SAK located?

    And further question: what is the safe process to check battery voltage and if i remove the Card, will I loose important data?

    Thank You very much, if you enforce the answer ASAP.

    Regards

    P.S. it made in year: 2003 (compact CPtronic)
     
    Dont worry you will not lose the data , send me the picture of your electrical cabinet i will show you the sak borad location
     
    Dont worry you will not lose the data , send me the picture of your electrical cabinet i will show you the sak borad location
    Hello Dear Friend, Adil
    Thank you very much in advance for your kind help and feedback.
    This press is at customer sight. Photos from main cabinet have been attached.
    Thank you very much again for your help
     
    Dont worry you will not lose the data , send me the picture of your electrical cabinet i will show you the sak borad location

    They are from the Main Cabinet SM74-2-P with Compact CP tronic. four photos
     

    Attachments

    • IMG_20250515_094713.jpg
      IMG_20250515_094713.jpg
      254.6 KB · Views: 111
    • IMG_20250515_094723.jpg
      IMG_20250515_094723.jpg
      284.7 KB · Views: 106
    • IMG_20250515_094735.jpg
      IMG_20250515_094735.jpg
      366.4 KB · Views: 112
    • IMG_20250515_094747.jpg
      IMG_20250515_094747.jpg
      299.7 KB · Views: 108
  • Yes yes , regarding the last picture this is compact machine there is no no sak board only ewk and zsk , in this case you have to check sensor synchronisation and function , check the zero position of the the format adjustment crown is all good then you have to disassemble the crown drive pinion and check the key and the drive shaft if there is any wear, replace if necessary
     
    Forum posts represent the experience, opinion, and view of individual users. The Color Printing Forum does not necessarily endorse nor share the view of each individual post. When making any potentially dangerous or financial decision, always employ and consult appropriate professionals. Your circumstances or experience may be different.
    Back
    Top