Atlas Copco XRVS 476 Cd

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MAINTENANCE QUICK ACTION FUEL COUPLINGS
Even with proper selection and installation, quick
action coupling life may be significantly reduced
without a continuing maintenance program.
Frequency should be determined by the severity of
the application and risk potential. A maintenance
program must be established and followed by the user
and must include the following as a minimum:
Visual inspection of quick action couplings:
Any of the following conditions require immediate
shut down and replacement of the quick action
coupling:
 Cracked, damaged, or corroded quick action
coupling parts.
 Leaks at the fitting, valve or mating seal.
 Broken coupling mounting hardware, especially
breakaway clamps.
Visual inspection all other:
 Leaking seals or port connections.
 Excess dirt build-up on the coupling locking
means or on the interface area of either coupling
half.
 Defective clamps, guards, and shields.
 Fuel level system and any entrapment.
Functional test:
Operate the system at maximum operating pressure
and check for possible malfunctions and freedom
from leaks. Personnel must avoid potential hazardous
areas while testing and using the system.
Replacement intervals:
Specific replacement intervals must be considered
based on previous service life, government or
industry recommendations, or when failures could
result in unacceptable downtime, damage or injury
risk.