Thomas SAF-T-LINER C2, Maintenance Manual

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9. Connect the fuel lines to their designated supply
and return valve. Tighten the fuel line flare nuts
13 lbf·ft (18 N·m).
NOTICE
Damage may occur to the valve(s) if they are over-
tightened.
10. Turn the fuel supply and return valves counter-
clockwise, then start the vehicle in order to
charge the fuel lines with propane.
11. Check for leaks using an electronic leak detector
or a liquid-leak detection solution.
47–08 CNG Fuel System
Inspection
WARNING
Natural gas is highly flammable. See the safety
precautions listed in Chapter 18 of the
Saf-T-Liner
C2 School Bus Driver’s Manual . Failure to observe
these precautions could lead to the ignition of the
natural gas, which could cause serious bodily in-
jury or death.
The following inspections must be performed by a
qualified technician, in accordance with the manufac-
turer’s established inspection criteria.
10/01/2013 f470610
1
1. Propane Fuel Filter
Fig. 6, Fuel Filter Location (fuel going in the tank)
Fuel
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Saf-T-Liner C2 School Bus Maintenance Manual, March 2019
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