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  1. I

    Komatsu PC 290 - 8 HELP !!!

    I know it does not affect the engine. Sometimes pressuer is to high and then doesn´t work at all
  2. I

    Komatsu PC 290 - 8 HELP !!!

    Even thought I set it up on 33 bar it´s still the same !
  3. I

    Komatsu PC 290 - 8 HELP !!!

    I thougt main pump was the reason, and some parts of pump were worn out.
  4. I

    Komatsu PC 290 - 8 HELP !!!

    Do you mean this pressure valve ?
  5. I

    Komatsu PC 290 - 8 HELP !!!

    Pressure reducitng valve was repaired ( new one ) pressure circuit is 33 bar. Sometimes was 60 bar but it has been set up on 33 bar. While opening empty bucket, engine turn off when the pressure is 170 bar and rate power engine is 105 %. It´s similar while it´s swinging.
  6. I

    Komatsu PC 290 - 8 HELP !!!

    Thank you. No error showing on the monitor ! Engine power is 100 % all right. The error is inside of hydraulic system. The engine starting going down when the pressure is 300 bar or when joistick is in the maximal positions. Main pump was reapired completely and it´s still the same. During...
  7. I

    Komatsu PC 290 - 8 HELP !!!

    I have a problem with Komatsu PC - 290 - 8. While working engine keep stoping after load pressure. Just engine swith off ! engine power is all right. Hydraulic pump was repaired a few days ago, pressures are fine. The computer doesn´s show any error !!! Problem is not constant - power is maximum...
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