Komori Sprint GS 228

Discussion in 'Komori Printing Presses' started by cmyksince1984, Sep 17, 2018.

  1. cmyksince1984

    cmyksince1984 New Member

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    Location:
    Charlotte
    Hello everyone
    We recently started having problems with our SPRINT GS 228.
    When we turn on main power the press acts like there is a short in it. It doesn’t give the normal power up alarm, just makes a funny buzzing noise. We can play with the power knob turning it on and off, on and off until the press powers up correctly. From that point we get oil pump overload or water fountain motor overload. If we get past this point and everything seems fine, as soon as we turn on the air pump the press shuts down and make a buzzing sound.
    On other days none of this will happen. Seems to be getting worse.
    Any thoughts would be appreciated!
    Thanks
    Tom
     
  2. CHOCK

    CHOCK Senior Member

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    Hi sir:

    Normally this pass since, the contacts for Main C.breaker Input can be faulty by dirty, or faulty, or Power Knob too in the same way.

    You can do this following test: When you try to Turning it on and off, until the press power up correctly.

    Measure with the DMM(Digital multimeter) if there are 220Vca or 380 Vca, or other voltages that you can use.use the Schematic Diagram.

    I do not have this schematic diagrams from your machine, But if you send me in PDF to my email, can help you more deeply.

    First in the Input contacts of the Power Knob tight wires loose , and then in the contact output of the power Knob, tight wires loose
    In that ways you will see if the Power Knob contacts if Faulty or o.k
     
  3. presselectronics

    presselectronics Senior Member

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    Sounds like your main circuit breaker, the one you keep turning on and off, is failing. I'd order a replacement breaker before you damage something on the press.
     
  4. CHOCK

    CHOCK Senior Member

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    ok sir.
    However i will recommend you , before to order, test in the same way like Power KNOB.
    Let me know, and try to send me the schematic diagram in PDF, for help you more Deeper, in any case.
     
  5. cmyksince1984

    cmyksince1984 New Member

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    We are measuring 230V going into the power knob and 155V coming out of power knob in the power on position. Would that mean the power know is faulty?
     
  6. CHOCK

    CHOCK Senior Member

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    Power Knob is fulty: is very simple the 23oVac in the input must be the same in the Output 230 Vac !! Input 230VAC=Output230Vac
     
  7. cmyksince1984

    cmyksince1984 New Member

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    Took power supply breaker out and opened it up. It was all burned up on the inside. Called Komori parts. New one is $622.00 and needs to come from Japan. Would it be worth looking local for something like this?
     
  8. CHOCK

    CHOCK Senior Member

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    yes can replace for any Similar, Cuttler hammer, Klockner Moller, Siemens, etc.
     
  9. cmyksince1984

    cmyksince1984 New Member

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    Thank You for all your help!!!!
     
  10. CHOCK

    CHOCK Senior Member

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    Thank you sir
     

  11. When you try to Turning it on and off, until the press power up correctly.
     
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