Sm74

Discussion in 'Heidelberg Printing Presses' started by andreinforb, Feb 24, 2017.

  1. andreinforb

    andreinforb Member

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    I'm having this problem, we've removed the module, fixed it, but the machine continues to shake as if it were the main engine. Help me.
    http://imgur.com/a/v7SLd
    [​IMG]
     
  2. CHOCK

    CHOCK Senior Member

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    Hi sir. good morning
    Would you explain more details, which module was removed ?
    and how is that, the machine is to shaking like main engine ???
     
  3. andreinforb

    andreinforb Member

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    It is a trepidation as if the machine wanted to leave and could not, but I already checked the main engine and based on the technicians, the engine has nothing.
    Image below
    imgur.com/a/03mvn
    (image no longer available)
     
  4. CHOCK

    CHOCK Senior Member

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    Dear Sir:
    As you mention trepidation is like Noise or Vibration
    You must take vibration preventive maintenance program by Mechanical Engineer
    with Instrument for to measure the Vibration like a) velocity b) acceleration 3)others
    However i very strong recommend you to test the following Step in your offset machine SM 74 Heidelberg
    1) Test the over packing cylinder= plate vs blanket vs impression cylinders
    overpacking produce to gears works with Ove pressure in the perfil of the tooth gears and produce Enoguh Vibration and
    of course Damaging the ball bearing in the cylinders and battery of gears.
    2)Test the lack of lubrication in the machine, if is working good the pump and system¿¿
    3)pressure of ROLLER distributor in Ink +Dampening system , see for Bearing
    4)Not parallelism between cylinders , see if there are one of them :No parallel in relation others
    cause wear in tooth of gear and ball bearings in cylinders(special bearings with Small tolerances) only provide by Heidelberg
    in according with the number printed in bearing for to know the tolerance for replace.(expensive Repair !!!!)
    5)See and test the parallelism between main motor and Flywheel.
    6) See if the gearbox has oil, or tooth cracking + ball bearing Faulty
    7)Battery of gear w tooth Cracking , and ball bearing
    8) if you did some repair see if there some PIN broken or faulty(twisted) produce enoguh Vibrations in the machine
    9) Test the LEVEL of floor, are o.k really?? this can be to make rupture at the machine, i saw this Result in many countries around the world.
    10) Test the Level of the Machine, if has a Good level¿¿, Heidelberg requisites for Level Instruments is Very EXTRICTLY, use SPECIAL LEVEL with +- 0.1mms of desviation for exactly adjustment, and to AVOID CRACKING, VIBRATION AND FINALLY BROKEn in the Structure of the machine, and BASEBOARD.
    They are special instrument for to take the measurement of prevetive maintenance Vibration.
    In short there another reason, but there are the main and most importants.
    Thank you in advance .
     
  5. andreinforb

    andreinforb Member

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    So the machine was normal working for more than 2 years, we fixed the module and it worked, except that it starts beeping and does not start, it only stays on the whistle. I wonder if it could be a problem in the motor or if it is in the module.
     
  6. Mathew

    Mathew Senior Member

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    Hi guys,
    What was the last function? Was it in production or in inching mode during manual wash up? If it was in inching mode I'm quite sure TTK or KVT has got damages.

    Good luck,
     
  7. andreinforb

    andreinforb Member

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    What is this Inching mode?
     
  8. CHOCK

    CHOCK Senior Member

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    Hi sir, i hope you are well
    inching mode, is a function, when you touch the button for Steps forward or backwar.
    to the main motor, for example, when you are washing the rollers, or blanket.
    back to me any question
     
  9. andreinforb

    andreinforb Member

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    It was not washing roll or washing ink, it was in print mode. What happens, it starts to print and sometimes makes a noise of friction, and that already told me that it is not in mechanics but in electronics. Then when we call again she only makes the whistle and does not leave. We have already fixed the photo module above and continue the problem. Now we send the module again to check if it has failed again, but we have already been informed that the module is without any defect.
     
  10. CHOCK

    CHOCK Senior Member

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    if the module is ok
    without any defect?
    did you make all the test ? starting in Step 3 that i did mentioned
    that we start with this??
    Otherwise you are wasting your time, money, and production
    Let me know if i can help you more insight
     
  11. andreinforb

    andreinforb Member

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    The Plate came back from the repair, installed and the machine worked. All tests gave FFFF, but this image and I compared with the manual of the machine and is showing some higher measures. What do you think?
     
  12. andreinforb

    andreinforb Member

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    It happened the same thing and stopped, the plate came back worked, we did some service. Now the fault appears in the KVT. Another thing as I do this test of step 1. Because the machine made a new noise kind a trepidation.
     
  13. andreinforb

    andreinforb Member

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    It happened the same thing and stopped, the plate came back worked, we did some service. Now the fault appears in the KVT. Another thing as I do this test of step 1. Because the machine made a new noise kind a trepidation.
    Another Thing, which would be this KVT 7DFF error.
     
  14. spikeboy

    spikeboy Senior Member

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    call a certified heidelbergh technician before you ruin your machine
     
  15. Mathew

    Mathew Senior Member

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    Hi,
    There is no out ranged values in the photo from your last post but I believe KVT and TTK have some issues according to error code that you posted recently and they are needed to get repaired. If you could check TTK on another machine to achieve the best results.

    Good luck
     

  16. andreinforb

    andreinforb Member

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    Now a machine works normal for 2 hours suddenly, I wait 15 minutes, I go back on and a machine works.
     
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