Problem circumferental register sm52

Discussion in 'Heidelberg Printing Presses' started by t_bhe@live.com, Apr 20, 2018.

  1. t_bhe@live.com

    t_bhe@live.com Member

    Joined:
    Feb 2013
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    Location:
    indonesia
    Hi

    Sorry If my english bad

    I have some problem with circumferental register. .In unit yellow. ..the current position cannot change to black(as picture below) ...i have replace the motor. ..After replace it register work...but the day later. .The problem appear again...after restart the machine , the problem disappear. .someone can tell me? Where is the problem? From motor or card? Thank you
    IMG-20180420-WA0028.jpg
     
  2. CHOCK

    CHOCK Senior Member

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    Hi sir
    Good day
    You must to do 2 things very easy:
    1) Please put the new motor in other and see what happen if the problem is ok, the motor is Good and BOARD.
    2) Please put the old board in other section, if the problem appear in that section the Old board is Bad.
     
  3. piri

    piri New Member

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    Location:
    Bucharest/Romania
    Hi sir,

    the first time the correct change motor with new motor, check to work mechanically the registry correctly, check the electronic card by interchange. In my experience the motor is defective in 90 cases.
     
  4. t_bhe@live.com

    t_bhe@live.com Member

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    Location:
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  5. t_bhe@live.com

    t_bhe@live.com Member

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    Location:
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    what mean 90 cases?
     
  6. CHOCK

    CHOCK Senior Member

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    Location:
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    Dear Sir:
    Please do that i did mention
    is the best way for troubleshooting, i am talking as Ex-engineer BSEE.PE with over 46 years of experienced
    in troubleshooting, trained by Heidelberg, Polar, and many other companies around the world.Now retired by my age.
    Let me know
     

  7. exheidmech

    exheidmech Senior Member

    Joined:
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    Location:
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    Your problem be either of 2 problems. First, you must make sure that the circumferential gears are mechanically centered. Do do this, remove the small pinion gear attached to the motor shaft with a 3mm allen. The 2 larger diameter gears should now turn somewhat freely. Turn in either direction until it stops. Mark the mesh point of these gears. Now turn in the opposite direction counting the revolutions of the large diameter gears. Next, turn back half the counted revolutions. Now make sure that your circumferential register is set to 0.00mm and mount the small pinion gear and tighten the 3mm allen grub screw. Your second potential issue is the mechanical nut/spindle has pressure rust in it causing this mechanism to seize. This is a little more difficult to fix but still not bad. You will need to unpin and force the spindle free in a vice using a lubricant. I have replaced many...many of these motors and 99% of the time its one of these 2 issues. Good luck.
     
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