C 2500 Truck 2WD V8-5.7L VIN R (1997)
The manual valve opening tool may damage the main seat of the high pressure lock-off (HPL) if used improperly. Use this tool only when the HPL is
not in operation.
Important:
Venting of natural gas to the atmosphere may be prohibited in some areas. Before venting the CNG fuel tank, contact the local gas company to assure
that all local, state and federal regulations are observed.
5.
In order to prevent freeze damage to the fill line and the FPS, the tank fittings must be capped by performing the following steps:
5.1.
Remove the fuel pressure sensor (FPS).
5.2.
Install a fitting and cap (2) supplied from the J 42435 CGN Tank Venting Kit into the FPS port (1).
5.3.
Disconnect the fill line.
5.4.
Install a cap (3) supplied from the J 42435 onto the fill line port fitting (4).
5.5.
Disconnect the fuel outlet line.
5.6.
Leave the relief port (top hole) open.
6.
Connect the vent hose (1) to the fuel outlet fitting and to the vent stack.
Caution:
When venting the Compressed Natural Gas (CNG) fuel tank, take the following precautions in order to prevent fire and personal injury:
^
Use the proper grounding procedure to an earth ground in order to prevent a build-up of static electricity which can lead to an electrical discharge.
