Hi I’m new to these forms and don’t know very much about hydraulic, I just bought a kobelco sk 150 mk Iv that I bought needing repair for almost nothing the problem is everything thing works fine except when I switch the KPSS mode from independent travel to fine control, standard, or heavy work mode the hydraulic system sounds like it puts a slight load on it and the pump hoses move like they building pressure almost sounds like there’s a a restriction somewhere but only when it’s not in independent travel
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