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  1. R

    Kobelco sk300 1997, hidraulic trouble

    First Thing, somebody know what is happening about 700 psi at H, S & FC modes? I thing is about main relief valve or something with the negative control pressure.
  2. R

    Leaking Turntable

    Hi guys... any body can help me, SK300 KOBELCO, I need to adjust the negative control pressure, Somebody know a procedure?
  3. R

    Kobelco hydraulic excavators

    Hi, Mr. Kobelco, I need some help , three troubles on my SK300 1997 EXCAVATOR: 1- Both PUMP are 700 psi loaded at neutral in FC, S and H modes, but perfect at D mode. 2- ANY combined movements between BUCKET and BOOM can be performed. 3- RL TRAVEL is a little slow only in a single travel...
  4. R

    Kobelco sk300 1997, hidraulic trouble

    Hi, I need some help , three troubles: 1- Both PUMP are 700 psi loaded at neutral in FC, S and H modes, but perfect at D mode. 2- ANY combined movements between BUCKET and BOOM can be performed. 3- RL TRAVEL is a little slow only in a single travel operation. In D mode, both pumps work...
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