Printed in U.S.A.
CNG FUEL SYSTEM COMPONENTS
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B.Fuel Management Module Components
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5. Fast Fill/HD Bus Fuel Receptacle
The fast fill/HD bus fuel receptacle is the filling port
for fueling the vehicle at public fueling stations.
6. Slow Fill/NGV1 Fuel Receptacle
The slow fill/NGV1 fuel receptacle is the filling port
for fueling the vehicle at slow fueling facility, usually
overnight.
7. Defuel Port
The defueling port allows the transfer of CNG fuel
into the fill receptacle of a second CNG vehicle, using
a defueling hose, capturing of CNG fuel in a system
that can send it back to a CNG fueling station
storage facility for reuse, or atmospheric venting (if
legal in your area).
8. Defuel Valve
The defuel valve controls fuel flow when removing
fuel from the cylinder during defueling operations. It
is a 3-way type valve marked OFF-DEFUEL-VENT.
The valve must be in the OFF position when
operating the vehicle.
9. Door Sensor
The door sensor that is located on the FMM functions
as a safety interlock to prevent the vehicle from
starting if the FMM access door is open.
C.CNG Fuel System Components
1. Fuel Cylinder(s)
The fuel cylinder(s) stores CNG fuel at a service
pressure of 3,600 psi. The fuel cylinders used on
CNrG Tailgate vehicles are type-4 composite
containers, manufactured to meet FMVSS 304 and
NGV2b-2012 specifications. The fuel cylinders used
on Top of Body and Back of Cab CNG vehicles with
the Agility FMM varies, as those are supplied by the
customer. In accordance with applicable regulations,
the cylinders must display permanent labels which
provide information necessary for inspection.
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