I need help to get info. on this Kobelco SK75UR s/n YR01050 Gray Market machine. The Nachi hydraulic pump does not shift with or with out 700psi of pilot pressure. I would like to know what the correct system pressures are, what the time cycles for each function are, what the GPM rating for the two pump outputs. and the engine rated HFI rpms. Electrically the boom and stick potenisioners are disconnected and the over ride switch I belive is activated and the alarm unpluged. Looking for HELP!!!!
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