RANS S-20 RAVEN
TEXT MANUAL
09/01/2013
01D-01
TRIM TAB ASSEMBLY AND INSTALLATION
ASSEMBLY
(BEFORE PAINT OF TAB)
1.
Cleco each trim tab half together along the leading edge.
HINT: Place the
halves on a flat surface and clamp or weigh them down.
This will assure
that the tab is straight.
2.
Remove one cleco at the time, drill out to # 30 and rivet (leading edge).
3.
Rivet the single-ear nut plates to both end ribs.
4.
Install the end ribs into each trim tab half with the end ribs as far forward in
the tab as possible and flush with the end.
NOTE: There are two sizes of
rivets used in each end rib.
Refer to
FIGURE 01D-04
and the parts
manual.
5.
Using the correct size drill bit, and using the pre-drilled holes in the tab as
a guide, transfer drill through the tab and into the rib.
6.
Rivet the end ribs in place.
7.
Prep, prime and paint both trim tab halves and both horns as desired.
(AFTER PAINT OF TAB)
8.
Drill the two holes in center rib doubler and center rib to # 30 and rivet
doubler to center rib. Refer to
FIGURE 01D-08
and the parts manual for
orientation of parts.
9.
Cleco the center rib and doubler into the left trim tab half, lining up pre-
drilled holes in the center rib bottom and bottom side of trim tab half.
Double check center rib location, drill out 3 holes to # 30 and rivet the two
aft holes only at this time.
10.
Using the top holes in the tab as a guide, transfer drill through the tab and
into the rib. Rivet only the top aft hole at this time.
11.
Slide the right hand trim tab half into place. Make sure the two halves line
up evenly, are flush and the tab is straight. Transfer drill through the six
holes in the tab into the rib and rivet.
12.
Drill the two pre-drilled holes in the hinge lock to # 11. This allows the
hinge lock to rest flat against the center rib wall. Refer to
FIGURE 01D-08
.
NOTE: Holes may be enlarged to 1/4" if clearance is required.
