RANS S-20 RAVEN
TEXT MANUAL
08/22/2016
05A-01
FUEL TANK ASSEMBLY AND INSTALLATION
ASSEMBLY
(BEFORE COVERING OF WINGS)
Installation of the Fuel Fittings will be easier to accomplish after the hole for the
Fuel Cap is located and cut. Refer to
UPPER AND LOWER ROOT SKIN
INSTALLATION
in
Section 05C.
Final installation of the Fuel Tank should be
done after all fittings are installed.
1.
NOTE: Each fuel tank is pressure tested from the supplier and guaranteed
leak proof.
RANS also performs a pressure test on each fuel tank before
they are packed. After you have installed the fuel fittings, it is advisable to
perform a final leak test. You may do so by capping off all fittings and
pressurizing the tank to 1 PSI and let set for a period of time.
CAUTION:
Damage may result from over-pressurization.
While the tank is
pressurized, check for any leaks by spraying a soap/water mixture onto
the tanks and around the fittings. To cap off the fittings use a 1" segment
of fuel line with a 1/4" bolt inserted, and fuel line clamps or similar. An
alternate test is to fill the tank with water and let it sit for approximately 48
hours.
DOUBLE & TRIPLE CHECK HOLE LOCATIONS BEFORE DRILLING
.
2.
Locate and drill three (3) 1/2" diameter holes for the fuel fittings at the
locations shown in
FIGURE 05A-02.
For drilling the holes a 1/2" Uni-Bit
®
works best. Locate center of the hole with a #30 drill bit, then drill full size.
Deburr all holes. Thoroughly clean each tank several times by rinsing with
water. After confirming that all foreign material has been removed, let
tanks dry prior to installing fittings.
3.
To install the fuel fittings into the tank, obtain a piece of wire approximately
40" in length. Safety wire works well. Insert wire through one of the fitting
holes in the tank and up through the filler neck. Refer to
FIGURE 05A-03
.
Install an O-Ring onto one of the tank withdrawal fittings and slide this
assembly over the wire extending from the filler neck. Bend a loop in the
end of the wire to keep the fitting and O-Ring from falling off. Pull the fitting
through the hole. Slide a flat rubber washer, 1/2" thick steel washer, and a
retaining nut over the wire and onto the fitting. Apply Loctite to threads and
thread the nut on before removing the wire.
CAUTION: Do NOT get
Loctite on the rubber washer.
