Operation CHARM: Car repair manuals for everyone.
Hosted by mcallihan.com

Fuel: Service and Repair

WARNING: Compressed natural gas is flammable and highly explosive. You could be killed or seriously injured if leaking natural gas is ignited. Stop the engine, and keep heat, sparks and flames away.

NOTE: You must be a Lincoln-certified technician to do fuel tank inspection or replacement work.

Fill Procedure

If a tank has less than 690 ± 340 kPa (7.0 ± 3.5 kgf/sq.cm, 100 - 50 psi) of internal pressure and is at an ambient temperature of 32 °F (0 °C) or less, follow the procedure below. Otherwise, fill the tank normally.

1. Fill the fuel tank to 4,800 ± 340 kPa (49.2 ± 3.5 kgf/sq.cm, 700 ± 50 psi) slowly (from a compressor, not from a cascade storage system).
2. Wait one hour.
3. Fill the rest of the tank normally.