Half/Pack
®
Issued April 2018
Compressed Natural Gas (CNG) Option
Copyright 2018, Heil Environmental
Printed in the U.S.A.
Compressed Natural Gas (CNG) Option
196
CORRECTIVE/DIAGNOSTIC
ACTIONS
transducer is operating
correctly. The problem is
likely in the Cortex Display
or the Cortex Controller.
*If the problem cannot be
resolved, call 866-310-
4345 for technical
assistance.
CNG VEHICLE OPERATOR EMERGENCY RESPONSE
WARNING
During an emergency situation, never jeopardize safety to shut down the system. If it becomes evident that the steps
cannot be safely completed, move to a safe distance, call 9-1-1 and alert emergency personnel of the situation, informing
them of the presence of a CNG system and that it is not properly shut down.
Emergency Response for Gas Leaks
If the vehicle has sustained damage or a gas leak is detected:
1. Do not approach the vehicle if any sources of ignition may exist such as fire, sparks, electrostatic charges, lights or
electronic devices.
3. If the vehicle is indoors, move the vehicle outside and away from any ignition sources.
4. Do not use road flares.
5. Do not smoke or allow anyone else to smoke near the vehicle.
6. Turn the ignition switch off, set the parking brake and turn off the battery at the main disconnect.
7. If it is safe to do so, close the main shutoff valve and the cylinder valves. Check the fuel system near the damaged
area for leaks by smell, sight, and sound. CNG is odorized and can be detected by smell.
8. Keep traffic and pedestrians away.
9. Beware that gas may continue to leak once ignition is turned off and the manual shutoff valves are closed.
10.Have a qualified technician verify leak locations with suitable methane detection fluid.
11.Have the leaks repaired by a qualified technician immediately.
CNG Vehicle Fire Procedures
In the event of a CNG fire, it is imperative that the vehicle operator acts quickly:
1. Get passengers out of the vehicle as quickly as possible.
2. Evacuate the area.
3. Call 9-1-1.
4. If possible without putting yourself in harm’s way, dump the refuse load from the body and move the vehicle a safe
distance away from any burning refuse.
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