NANO

FUEL SYSTEM 5  Use a suitable Teflon tape (minimum density of 1.2 g / cc) and start wrapping on the cylinder valve thread in the direction of male tapered thread spiral for complete 3 turns as shown and join with a slight overlap.  Make sure that tape does not overhang the first thread as it may block passage / small orifices in any of gas circuit parts.  Cut-off excess tape and draw free end of the tape and press firmly at the overlay point.  Put the rubber gasket on the valve thread.  Insert the valve thread into the cylinder neck manually and screw it in clock-wise direction till the threads do not engage further.  Hold the cylinder in a suitable fixture.  Tighten the valve to a torque value between 27- 30 Kg-m using a torque wrench & tightening tool (Part No: 5402 5890 47 01) as shown below.  Connect the solenoid valve electrical connector.  Caution! Do not try to screw / unscrew the valve by holding the solenoid coil and manual ON / OFF knob.  After complete installation of the cylinder valve, check all the connections of cylinder valve and also check the connection of solenoid coil with multimeter, and then slowly open the manual ON/OFF knob of the valve until it is fully open. NOTE:  Never try to remove the cylinder valve on vehicle.  For any repairs activity, which requires the removal of cylinder valve from cylinder, should be done only at TATA authorized dealers / at authorized cylinder rectifications agencies. 7