Swash PlateA PortChargePressure300Charge PumpReliefCheck ValveChargePumpB PortHydrostaticPumpHot OilShuttleHot OilReliefEngineMotorPressure Compensate(Override / Servo) PistonPressure Supply LineTank LineSequenceValveSequenceValveCrossPortReliefs(For Shock Only)CrossPortReliefCrossPortRelief260 PSIpsi-Qmax+QmaxQminCheck ValveLow PressureHigh PressureVacuum PressureDrain PressureColors LegendMedium Pressure300 PSI3000 PSI3000 PSI