SYSTEM ASSEMBLY AND PREPARATION FOR USE (Continued)
If fuel drums are delivered full, proceed to step 3. If fuel drums are to be filled on site:
For normal operation, all fuel drums will have a 2" x 2" elbow valve coupler installed on each
end. Fuel drum filling requires installation of a 2" x 1-1/2" elbow valve coupler on the inlet end of
each drum to interface with the pressure control assembly and fuel source.
If installed, ensure all elbow valve couplers at inlet and outlet of all affected fuel drums are closed.
Remove the 2" x 2" elbow valve coupler from inlet of first fuel drum to be filled.
Position the pressure control assembly near the inlet end of the first fuel drum to be filled.
Install the supplied 1-1/2" fuel hose to the outlet end of the pressure control assembly.
Drum filling crew connect fuel hose from the fuel source to the inlet of the pressure control assembly. Use adapters
from the drum adapter kit as necessary.
Install a 2" x 1-1/2" elbow valve coupler on the free end of the pressure control assembly hose.
Open the elbow valve coupler and hold over a suitable container to catch fuel. Depress and hold the FILL button on
the pressure control assembly.
At the fuel source, commence pumping.
The pressure control assembly will operate to stop fuel flow as soon as the elbow valve coupler is closed.
As soon as fuel is dispensed into the container, release the FILL button, close the elbow valve coupler and install to
inlet of the fuel drum to be filled.
Open the elbow valve coupler, press the FILL button on the pressure control assembly and allow fuel drum to fill.
Fill fuel drum until a back pressure of 4.5-5 psi is attained. (The pressure control assembly will operate
automatically at 4.5 - 5 psi to stop fuel flow.)
Close the elbow valve coupler and remove from fuel drum.
m. Install a 2" x 2" elbow valve coupler on the fuel drum for use during normal AAFARS operation.
Repeat steps b through m until all fuel drums are filled.
Perform API Specific Gravity Test if there is any doubt concerning the type of fuel delivered.
Always handle the sampling equipment with care to ensure cleanliness. All sample containers
must be clean and free of water, dirt, lint, washing compounds, naphtha, or other solvents.
Cautiously open the fuel contamination test kit. Glassware may have become dislodged during transport.
Select a thermohydrometer (figure 2, 1) with a specific gravity rating at mid scale for the fuel to be tested. (JP8 has
a specific gravity of 45; JET-A has a specific gravity of 43.)