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pc50 mr-2

  1. A

    Komatsu pc50 slow movements

    Hi everyone, I own a 2008 Komatsu pc50. When I move the dipper, the boom lifts very slowly, but when I slightly release the dipper joystick the boom lifts just fine and fast. Is there any way to make the boom and dipper work simultaneously? There are hold valves on the boom and dipper cylinders...
    • Ale98
    • Thread
    • excavator komastsu pc50 mr-2
    • Replies: 5
    • Forum: Excavators
  2. J

    Komatsu PC50 MR-2 tilt floor won't close

    Help! Had a hydraulic solenoid replaced from rat chew and the trackhoe tilt floor won't close. How many people should it take to close it? We can get it about half way down with sheer brute force but can't get it any farther. Last week we were able to pull it down with additional help but it...
    • Jill
    • Thread
    • pc50 mr-2 tilt floor
    • Replies: 6
    • Forum: Excavators
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