NANO

FUEL SYSTEM 15 REMOVAL & REFITMENT OF PRESSURE REGULATOR (on vehicle): REMOVAL NOTE:  Park the vehicle with brakes ON and duel selector switch is kept in CNG mode.  Manually turn of the tank valve and connect the TML tester tool and start the service “Empty CNG lines”  Crank the engine and run in idle condition until engine stop at its own.  Re crank the engine it should not start (tank pressure should be 0 bar) WARNING : Do not turn OFF Cylinder Valves , in vehicle running in CNG mode. This may wrongly detect the leakage error.  Disconnect the battery negative terminal.  Disconnect the electrical connections of solenoid valve and high pressure sensor.  Disconnect the following connections from pressure regulator. A) Gas supply connection from cylinder. B) LP hose from regulator to LP filter C) Pressure Relief Valve (PRV) connection.  Now carefully remove the pressure regulator mounting fasteners and take-out the unit from the vehicle. FITMENT OF PRESSURE REGULATOR (on vehicle):  For fitment procedure, follow the reverse procedure of “Removal”.  Conduct leak detection test after the fitment of pressure regulator on vehicle. NOTE: Follow the guidelines for NPT threading for assembly of NPT threading.