I have a 2005 sk160 Kobelco 1100 hrs. I randomly lose hydrolic power, fluid level is fine and clean, filter clean, I have had a certified mechanis look at it twice and no faults are showing on the computer and of course each time he came it was working fine. There is no ryme or reason to it my happen daily or go 6 months and be fine. Hot or cold doesnt matter, most times if I shut the machine off for a little while and re-start it is fine. One time the p1 sensor was flashing a fault so I changed that, problem still there. Any suggestions?
change p1,p2 bypass cut solenoid valves