Fei Bao F18-f, Инструкция по сборке

Страница: 8 / 31

7
F E I B A O F 1 8 - f
Everything needs to be very clean, especially the inside of the tanks. Depending on the kind of
header tank you use, The BVM UAT as shown above should be installed at an approx. 45-degree
angle to allow air bubbles to exit from the top fill line. You can also make up your own header
tank with a bubbles filter, or a geometrically centered pickup, but any way you do it, you should
not attempt to fly without a header tank system or you will most likely have flame outs all the
time caused by air bubbles.
The tanks will be installed in the fuselage and secured with Velcro but you should double
check each one by removing them and then removing the stoppers as explained next, then blow
them out, be sure that no debris of any sort is left in them before proceeding. This is a vital step,
do not omit this step.
It is recommended that you disassemble and inspect the tank cap hardware also as the next
picture shows, the process used to cut the tubes may leave behind a rim that constricts fuel flow
and could result in excess tank pressure and leakage. The vent tube to the top of the picture
shows what the constriction looks like before repair, while the fuel tube on the lower left shows
what the tubing should look like after clean up.
To remove the stoppers loosen the center screw about 10 or 15 turns and then try to wiggle the
stopper back and forth as you pull on the tubes and rubber stopper slightly, you may need to use
a screw driver to pry on the rubber to break the seal..
If the tubing is not constricted, skip to the next step. Use a small, round Perma-Grit rat tail file
or an Exacto knife to remove the excess metal. You will need to inspect the ends of all tubes.
When finished, make sure to blow out the metal fragments and clean up any sharp edges.