hello. friends Does anyone know about the adjustment of the Komatsu pc200-5 servo valve? There are two adjustment screws on the top and bottom of the front and rear servo pump valves, but I did not find anything about their adjustment even in the service book.
I also could not see any reference to these adjustments in the book. From my interpretation of the information in the service manual, the servo control input pressure "Pi" has a corresponding set of adjustments that sets the 2 stage performance control curves "lower" and "upper limit". The second set of adjustments looks like it can adjust the response time of the "Pc" input pressure to the servo piston by varying the position of the outer spool sleeve.