Hello tried posting before got no replies, Bought 220 daewoo excavator, last owner had an issue and had bad mechanic diagnose, found issue but due to mechanic diagnosing now everything is leaking hydraulic oil, machine runs great but leaks badly out the adjuster of all relief valves and a few oring locations, changed orings still leaks, where should I start, pressure tests?
Good day See attached. Kind regards Uffex