Chapter 3. Cleaning and Maintenance
With proper care and maintenance, the materials used to construct the
Aviation Fuel Contaminant Test Kit are designed for trouble-free performance
throughout a long product lifetime. The following basic procedures for cleaning
and care, if rigidly observed, can eliminate problems resulting from improper
care. For specific replacement parts, refer to the equipment list on pages 1-2
through 1-4 and the corresponding Loading Plan (Figure 1.1) on page 1-5.
3.2 Kit Maintenance
Perform the following five steps according to a maintenance schedule
developed for specific site requirements.
3.2.1 Completely disassemble all fuel line parts and components (including
tubing and connectors) that come in contact with fuel.
When unscrewing or replacing threaded fittings, take particular care not to
damage the metal threads which may weaken the line and cause leakage, As a
general rule, threaded fittings located upstream of the filters can be left in place,
except when dealing with liquids that deposit heavy residues. You may
supplement fuel line seals with Teflon tape which should be periodically removed
3.2.2 Remove all O-rings and gaskets from their seats, If necessary, use flat-blade
unserrated forceps to pry O-rings out of their grooves.
3.2.3 Inspect all O-rings and gaskets for embedded dirt and remove any dirt with
a gentle scraping. If grit particles are deeply embedded, replace the O-ring or
gasket rather than excavate the grit and risk damaging a seal.
3.2.4 Carefully examine O-rings and gaskets for cracks and deep or large
abrasions: discard and replace the part if the integrity of the part is compromised.
For a list of replacement parts, see the equipment list on pages 1-2 through 1-4
and Figure 1.1, Page 1-5, Loading Plan.
3.3 Kit Cleaning
Perform the following five steps according to site specified standards after each