STRUCTURE AND FUNCTION FINAL DRIVE 2. FLUSHING RELIEF VALVE When the oil is sent under pressure to the port, the oil that activated the motor returns to the pump through the port. The pressurised oil sent to the port is also introduced into the chamber . It now pushes the selector valve (1) to the right ( ). This opens communication between the ” port and the oil gallery which is connected to the over- pressure limitation valve (2). If the pressure present at port exceeds the calibration value of the overpressure limitation valve (2), this valve will open and discharge the excess oil into the reduction gears.
The valve also functions in the same way when the pressurised oil is sent to the port. The only difference is that the selector valve moves to the left ( ), and the oil gallery communicates with the port. . 2 D 2 D C C 1 1 A B RKS01070 10-10 SK818-5 SK820-5 turbo A B