1988 Gto 52 4 color registration prob

Discussion in '4-Color Offset Presses +' started by V2creative, Feb 27, 2020.

  1. V2creative

    V2creative Member

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    Hi

    can any one help about my machine registration problem

    Unit number 1 and unit number 3 has problem

    from top right and bottom right

    pls advise
     
  2. junker1984

    junker1984 Senior Member

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    Hi V2, You'll have to try to be more specific regarding your issue. Photo would help. Double imaging? Is there a perfector between 2 and 3?
     
  3. V2creative

    V2creative Member

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    Yes perfector now I checked

    Double image in only first unit

    Between plate and blanket cylinder no space while without impassion

    right side okay but on left side blanket and plate touch

    I change packing now better but still touching but less

    use 125 packing
     
  4. mantman

    mantman Senior Member

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    I suppose you mean 1.25 mm packing under blanket right? If that is the case then you are really OVER over packing blanket.
    By the book you should go as low as 0.95 max 1.15. Your plate is without packing i presume -hope-.
    Sooo formula is:
    plate thickness 0,15mm - plate undercut 0.03mm=plate over bearer ring +0.12mm
    blanket 1,95mm + packing say 1mm - blanket undercut 3mm=blanket under bearer ring-0,05mm
    ergo your squeeze of plate/blanket is 0,12-0,05=0,07mm
    Also check your plates are firmly tight over plate cylinders.
    Hope that helps
     
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  5. V2creative

    V2creative Member

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    Thank you so much dear
    Problem has been resolved

    I have one more problem now B064AD38-54BD-4DA0-97A3-C5FFA6730F59.jpeg
     
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  6. mantman

    mantman Senior Member

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    Open up electrical panel and search for 4 sets of green and red buttons see if green is sticking out and push it. That problem occured to me when machine could not speed up/slow down really slow, so electrician told me to open a small box at motor under feeder and put some grease over a radial spindle that controls the speed of machine
     
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  7. V2creative

    V2creative Member

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    No there are no buttons; it’s GTO52 zp 1988 model

    so red light is on and inching is only half round no running machine
     
  8. Nitin

    Nitin Member

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    My problems is same please help is small speed up and slow
    Motor is continuing running and indicator is red in feeder
     

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  9. Nitin

    Nitin Member

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    What is solution in this problems?
     
  10. CHOCK

    CHOCK Senior Member

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    Hi sir:

    Would you please indicate me: 1) what model is your machine 2) what is the exactly problem in order to help you??

     
  11. Nitin

    Nitin Member

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    Hi sir my problems is machine not raining not inching feeder red indicator is red light on I check the panal in 3sets in red and green boten is ok but is not running inching and is not any respond by conductor inching boton on of and mean moter speed controler moter is countinew is running is not stop
     
  12. Nitin

    Nitin Member

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    Gto v52 4 coller alcohol domping 1990 model
     
  13. CHOCK

    CHOCK Senior Member

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    Hi sir:

    Please review if the contactor d114 is close when you activated for work in Inching and d210.If not review if the voltage is there
    or loose connection, or fuse before, or contacts dirty from contactor, or defective.

    Look if d244 forward +d245 backward if close too for Inching,test it

    Happy New Year
     
  14. junker1984

    junker1984 Senior Member

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    "Speed regulating servo motor continues to run" is how im understanding the question. If so, remove small rectangular cover over servo and spin the outer cam while holding lever down against it, until lever falls into detente.
     
  15. johnpaul

    johnpaul Member

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    Dear Sir, please help I have GTO Z. While running it's stop. We try inching forward/backward it does not moving but we hear contactors is functioning and brake releasing. We check all the safety switches and we hear contactors is functioning. Any advise what need to check. Thank you.

    Best regards,
    john
     
  16. junker1984

    junker1984 Senior Member

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    Red warning light illuminated? Green lamp illuminated? Have you checked brushes in commutator and slip ring holders? Have you checked fuses? Have you checked incoming voltage on all three legs?
     
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  17. johnpaul

    johnpaul Member

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    Dear junker1984,
    From the Board, The 2green lamp illluminated after press the forward/backward. The red lamp is On after press the safety botton. The brushes in commutator ring holder not yet check. Fuses all OK by continuity check. Incoming voltage 3phase also OK. Rectifier 24v dc is OK. My machine model is GTOZ 52 two colours. Serial number 712912. Manually testing the safety switches all ok and contactors is responding. Try to forward/backward the contactors also responding. Try to press Run contactors also responding but Not running. Please advice. Thank you.
     
  18. junker1984

    junker1984 Senior Member

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    Have you manually pulled brake release lever and tried inching/run buttons.
     
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  19. johnpaul

    johnpaul Member

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    Dear junker1984,
    I tried manually pulled the brake release lever and tried inching/run buttons and still motor Not running. The operator go to other side of the machine and he can turn manually freely the machine. Please advice. Thank you.
     

  20. junker1984

    junker1984 Senior Member

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    Did you check brushes on both sides of motor?? Maybe it's time to have electrician look at schematics, and determine if all relays/contactors that should be energized are actually pulled in. It's possible you may have a burnt out magnet (coil) causing your problem.
     
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