Adjustment of flow control characteristic The flow control characteristic can be adjusted with the adjusting screw. Adjust it by loosening the hexagon nut (801) and by tightening(or loosening) the hexagonal socket head screw(924). Tightening the screw shifts the control chart to the right as shown in the figure. 801 924 Adjusting values are shown in table. 2-12 (210-7) Delivery flow, Q Pilot pressure, P i 2-13 Speed (min -1) Adjustment of flow control characteristic Tightening amount of adjusting screw(924) (Turn) Flow control starting pressure change amount (kgf/cm2) Flow change amount ( /min) 1900 +1/4 +1.63 +22.2