NANO

FUEL SYSTEM

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.