21 JANUARY 2003
NOTE: Before placing the F/S back in service, contact the FMF to ensure flushing and sampling
is accomplished (see T.O. 42B-1-1, Quality Control of Fuels and Lubricants).
10.3.10. Micronic Filter. Determine filter element replacement by manufacturer data, or after
757,082 liters (200,000 gallons) of fuel have passed through the elements, whichever occurs first.
The MAJCOM fuels engineer may extend the filter replacement based on DP for high through-put
10.3.11. Surge Suppressors.
Check pressure settings and adjust in accordance with the
10.3.12. Testing and Calibrating Meters.
Component wear and accumulation of solids make
periodic calibration necessary.
10.3.12.1. Certified master meters are used for meter calibration by connecting hoses from the
hydrant outlet or fill stand to the master meter, and from the master meter to a tank truck or
servicing vehicle. Calibrate master meters annually.
10.3.12.2. Test meters at a predetermined flow rate and at calibration settings between 20% and
100% capacity. Meters are satisfactory when the meter error in the normal flow direction is
within 0.2% of actual quantity delivered (e.g., 1.2 gallons for a 600-gallon test ). Calibrate
service station meters to within 0.2%.
Adjust meters according to manufacturer's
recommendations. Use stencils or embossing tape to permanently mark the installed meters.
10.3.12.3. Meters with installed drain plugs will be drained of water and sediment by FMF
personnel. The LFM shop foreman will ensure drainable meters have the proper connections
10.3.13. Signs and Markings. Check signs and markings for adequacy and readability. See AFOSH
Std 91-38, Section 3.2, for descriptions of sign locations, and MIL-STD-161F2, Identification
Methods for Bulk Petroleum Products Systems Including Hydrocarbon Missile Fuels, for marking
10.3.14. Pressure Relief. Check system pressure relief to ensure proper operation. Test and/or
adjust the pressure relief valve 10% above system deadhead pressure, not to exceed 275 psi. Repeat
the test, if applicable, a minimum of three times to ensure proper operation. Not all pressure relief
valves are set at 10% above the maximum operating pressure. Thermal relief valves must be set to
allow cascading of pressure back to the storage tank. In this case use set points specified in
10.3.15. Service Station Dispensers. Check operation, belt alignment, strainer, linkage operations,
hoses, meter calibration, relief assembly, and automatic nozzle shutoff functions.
10.3.16. Direct-Reading/DP Gauges. Calibrate according to the manufacturer's specifications.
DP gauges require calibration only
at USAFE bases. Calibration
in NATO STANAG 3583, Standards of Accuracy for Different Press Gauges for Aviation Fuel
Filters and Filter/Separators.