Ram Trucks 2014 3500 - CNG Supplement - Manual (Page 54)

MAINTENANCE PROCEDURES
Container Inspection And Testing
Inspection
It is recommended that the fuel system components be
inspected periodically for leaks and/or excessive wear.
Container Retest Requirements (United States)
Each CNG fuel container must be visually inspected after
a motor vehicle accident or fire and at least every 36
months or 36,000 miles, whichever comes first, for dam-
age and deterioration, in accordance with the Federal
Motor Vehicle Safety Standard number 304 compressed
natural gas fuel containers.
The inspection shall be performed only by a qualified
person in accordance with the container manufacturers
established re-inspection criteria and the appropriate
Compressed Gas Association, Inc. guideline. Retest dates
must be marked on a label securely affixed to the
container and over-coated with epoxy near the original
test date. Reheat treatment or repair of rejected containers
is not authorized.
The fuel containers expire and must be removed from
service fifteen years from the date of manufacture. A label
on the CNG tank states the first container inspection date
and container expiration date.
If there is a question about the proper re-inspection of the
CNG fuel container, contact the manufacturer as identi-
fied on the container label.
Container Retest Requirements (Canada)
Each container must be re-qualified by inspection or
testing after a motor vehicle accident and at least every 36
months or 57,000 km whichever comes first, or at the time
of any reinstallation in accordance with Canadian Stan-
dards Association B51–97, Part 2.
52 MAINTAINING YOUR VEHICLE