NONRETURN VALVE INSPECTION [ZY, Z6]

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Warning

•  Fuel is very flammable liquid. If fuel spills or leaks from the pressurized fuel system, it will cause serious injury or death and facility breakage. Fuel can also irritate skin and eyes. To prevent this, always complete the “Fuel Line Safety Procedure”, while referring to the “BEFORE SERVICE PRECAUTION”.

1.  Complete the “BEFORE SERVICE PRECAUTION”. (See BEFORE SERVICE PRECAUTION [ZY, Z6].)

2.  Remove the nonreturn valve. (See FUEL TANK REMOVAL/INSTALLATION [ZY, Z6].)

3.  Verify that the nonreturn valve is closed.

•  If malfunction, replace the nonreturn valve. (See FUEL TANK REMOVAL/INSTALLATION [ZY, Z6].)

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4.  Verify that the nonreturn valve is not stuck open and does not open even when pulled up by a finger.

•  If malfunction, replace the nonreturn valve. (See FUEL TANK REMOVAL/INSTALLATION [ZY, Z6].)