... /hDiesel EngineModelNT855-C280 (Cummins) or C6121ZLG10 (Licensed CAT 3306 diesel engine)Type water cooled, single line, vertical, four strokes ... service.Hydraulic system of the machineIt is composed of oil pump, transmission control valve, steering and braking control valve, ... ripper. It mainly consists of oil pump, cylinder, inlet valve group diverter valve group, oil tank line and controlling parts. ...