GB/T 27876-2011Technical specification for the maintenance of compressed natural gas vehicle (English PDF)

4.1

CNG vehicle maintenance operations should be carried out in compliance with safety requirements of the special workshop, the workshop should be well ventilated, the top should be possible

Forming gas accumulation of the dead, have CNG in possible leakage sites should express anti-fire, anti-static logo.

4.2

CNG cars before the maintenance work, you should first check the tightness CNG dedicated device, if the leak should be troubleshooting, confirmation

Sealed system after maintenance work.

4.3

Maintenance work should be carried out involving the use of CNG inspection, maintenance and other operations, and then close the cylinder valve and closing within the pipeline

CNG drained, and then to maintain other projects.

4.4

when the need for welding and cutting operations and other open flames, and batteries should be removed important assembly of electronic control components. Security should be disassembled and placed in the cylinder

The dedicated warehouse safekeeping; or in compliance with safety requirements will be dedicated venue CNG supply system (including the cylinder) pressure relief forbidden band

Pressure operation, to ensure that no CNG in the gas supply system.

4.5

For grinding or cutting in the vicinity of the cylinder, it should first be removed or effectively isolated. Shall have the accreditation unit, personnel engaged

Cylinder maintenance and testing is prohibited Wabu, welding and other operations on the cylinder.

4.6

CNG automobiles such as leak occurs, immediately turn off the power and cylinder shut-off valve, then a dedicated site for processing. If the high-pressure pipe

GB 29743.3-2025 | GB 29743.2-2025 | GB 29743.1-2022 | GB/T 47439-2026 | GB/T 47416-2026 | GB/T 27877-2011 | […]