... 5, high pressure cleaning 1, Pump Gear Pump gear with forced oil lubrication and variable ratio2 ... , Pump Head a, Material, 40 Cr Steel, ... Oil Filter Setc, Pressure Gauged, Hose for cooling system4, water jet pump technical data: Speed of motor1480(r/ ... ratio3.652Gear ratio i2.963Speed of pump(r/min)405Speed of pump(r/min)500Power (kw)557590Plunger diameter ...