RANS S-20 RAVEN
TEXT MANUAL
08/22/2016
05A-02
4.
Use a 1/4" Allen wrench inserted into the tank fitting to hold the fitting
while tightening the retaining nut.
IMPORTANT: Do not allow the fitting or
1/2” thick washer to rotate while tightening or leaks may occur. HINT:
Prevent the 1/2” thick washer from turning by holding with needle-nose
Vise-Grips.
5.
Apply thread sealant to fittings and install into the tank fittings. Again,
allow no rotation of the tank fitting. Refer to
FIGURE 05A-02
and the parts
manual for the correct parts.
6.
Perform leak test as described above.
INSTALLATION
(AFTER WING FRAME ASSEMBLY/ BEFORE COVERING OF WINGS)
7.
Locate the pre-drilled hole for the U-bracket (S2-SAB) 19.5” outboard from
the
ROOT
end of the Leading Edge Spar on the AFT side. Drill spar #11
and rivet U-bracket to the AFT side of the Leading Edge Spar. Drill and
rivet a side-by-side nut plate to the top of the U-bracket.
HINT: Squeeze
the rivets with a Rivet Squeezer to allow the Outer Tank Support Tube to
clear. A pair of Vice-Grips with tape on the jaws will work to squeeze also.
Bolt the forward end of the Outer Tank Support to U-bracket. With the Fuel
Tank in position, resting on both the Root Compression Tube and the
Outer Tank Support, pull the Outer Tank Support into place against the
tank.
NOTE: The AFT end of the Outer Tank Support is cut diagonally to
clear the drag brace.
See
FIGURE 05A-07
.
8.
Drill the two holes in the U-bracket (KPAC0055) to # 11. Bolt the U-
Bracket to the Outer Tank Support. Fasten the U-bracket to the drag brace
by drilling two #30 holes in the U-bracket on centerline. Rivet with two 1/8”
stainless steel rivets. Refer to
FIGURE 05A-07
. Install a side-by-side nut
plate to the topside of the U-bracket. Squeeze the rivets as previously
described.
9.
Position the Fuel Tank in the wing. Make sure the tank is against the
Leading Edge Spar. Position the tank on the support tubes with light
pressure, making sure that the tank is seated flat and contacting the
support tubes throughout the length of the tank.
10.
Position the Fuel Tank Retainer Angle against the aft side of the fuel tank
on top of the Compression and Drag Brace Tubes. Refer to
FIGURE 05A-
10
. Transfer drill through the pre-located hole in the Retainer into the top
center of the Inner Compression tube. Locate a hole on top centerline of
the Drag Brace for attaching the outer end of the Retainer Angle. Drill #30.
11.
Rivet the Fuel Tank Retainer Angle in place with stainless steel rivets as
per parts manual.