FB Jets FEI BAO, Инструкция по сборке

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If you are using the factory installed fuel tank components please follow the step outlined below:
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Loosen the Philips head screw and remove the stopper assembly from the tank.
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Use a small, round Perma-Grit rat tail file or an X-acto knife to remove the excess metal
inside of the cut ends of the tubes. You will need to inspect the ends of all tubes. Another
good method is to use a countersink tool to de-burr the tubing, as you want to create an
internal chamfer.
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When finished, make sure to blow out the metal fragments and clean up any sharp edges.
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While the components are apart, check the Tygon pickup line for equal lengths in both
saddle tanks. They should be long enough to reach the back of the tanks without being so
long as to restrict their ability to move to the top of the tank when the aircraft is inverted.
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You should also notch the vent tube with a small file to provide for continued air flow should
the tube come into contact with the top of the tank.
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Make sure the bends to the vent tubes applied at the factory have not restricted airflow to
any significant extent. Also, check the Tygon for any nicks or cuts and secure to the tubing
with wire ties before re-assembly.
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Once the tanks are back together, they should be leak checked before installation in the
aircraft. Connect extra lengths of fuel tubing to the fuel and vent lines and submerge the
tank in water. Pinch off one line and gently pressurize the tank by blowing into the other,
looking for signs of air bubbles. If the tank shows evidence of air leakage around the vent
cap, tighten the Philips head screw and check again. If you have a stubborn leak, you can
re-tap the inner plate for a slight larger 6/32 cap head bolt.
It is recommended that you mount the main fuel tank so as to be able to remove it for
maintenance in the future. There are many methods available to secure the main tank, a few
include mounting with adhesive backed Velcro™or mounted to a tray with Velcro™ straps or Ty-
Raps. The method use here will be to make a mounting tray and utilize Velcro straps.
The plate shown in photo 40 can be fabricated from the supplied template and plywood, the
Velcro strap in inserted into the hold down plate before it is glued into the fuselage.
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Gluing the spacer block to the bottom of the tray, when cured proceed to next step, see
photo 41.
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Glue the tank mount plate to the fuselage floor; make sure to prep the area by sanding the
fiberglass with medium grit sand paper, see photo 42 for placement location.
Photo 40