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  1. K

    Komatsu PC35MR-2 swing and blade wont move when cold

    Good day, yep, new hydraulic oil VG46 and hydraulic filter.
  2. K

    Komatsu PC35MR-2 swing and blade wont move when cold

    Hi, Checked relief valve, everything seems to be without problems, when the blade and swing "work", I don't have any problems afterwards, it even has excellent power on the blade and there are no problems with swing.. The gear pump pressure is always the same....
  3. K

    Komatsu PC35MR-2 swing and blade wont move when cold

    Hello, thank you for these information.. but I forgot to say that I changed the gear pump and there is no difference. Actually there is, it happens that with the new gear pump the controls work immediately, but stop after 2 minutes..
  4. K

    Komatsu PC35MR-2 swing and blade wont move when cold

    Hello, check this uploaded pdf file for this excavator. ( I cant upload on this forum because file is large ) https://easyupload.io/vrmilg Regards
  5. K

    Komatsu PC35MR-2 swing and blade wont move when cold

    Hello friend.. I can send to your email adress service manual with hydraulic scheme and testing and adjusting, if you want?
  6. K

    Komatsu PC35MR-2 swing and blade wont move when cold

    I have a service manual in pdf, but for hydraulic schematic I use online version... https://llk-parts.ru/ In search enter PC35MR, and choose PC35MR_2 F00103-Up
  7. K

    Komatsu pc50mr2 system monitor

    if that's the only problem with the monitor, then that's not big problem... Just open monitor, and indentify microswitch on board for travel.. One is for light, and the other is for travel speed...
  8. K

    Komatsu PC35MR-2 swing and blade wont move when cold

    Hello. I have Komatsu PC35MR-2 2006 year, F00878 serial number.... When its cold ( at first start ) controls for swing and blade not working, sometimes works 3-5 seconds and stopped working, others pilot controls working fine ( for working equipment, travel, boom swing, and attachment line)...
    • komatsu_power
    • Thread
    • blade komatsu mr-2 pc35 pc35mr pc35mr-2 pilot controls swing issue
    • Replies: 13
    • Forum: Excavators
  9. K

    Komatsu PC35 MR2 2006 problem with swing and blade

    Replaced main hydraulic pump with new one, because had a problem with engine stalling when warm....
  10. K

    Komatsu PC35 MR2 2006 problem with swing and blade

    Hello everyone, after fixing main problem with hydraulic pump and pressure, the following problem appeared. When the excavator is turned on for the first time commands of swing and blade not working, they start working briefly and stop, but other commands of travel and working equipment working...
  11. K

    Komatsu PC35 MR-2 hydraulic problems

    Solved, problem with new pump, deacrease PC valve for flow, and gear pump have bad pressure and pilot pressure at idle 15bar, when changed gear pump hydraulics working property
  12. K

    Komatsu PC35 MR-2 hydraulic problems

    Hello. I have Komatsu PC35MR2 2006, with problem with hydraulic pump. Excavator working excellent when cold, but when warm up, hydraulic stalling engine when command held to end.. I note I have never had a problem with travelling, cold or warm travel working excellent. My plumber came and...
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