09/11/2018
RANS S-21 OUTBOUND
TEXT MANUAL
137
45.
Cleco windshield hold down strip to boot cowl. Re-apply, if necessary, masking
tape onto windshield flush with top edge of hold down strip. This is to prevent the
adhesive from blemishing the windshield. Un-cleco and apply a generous amount
of 3M 2216 adhesive to the outside of the windshield below the tape. Apply from
center out to the curve. Do NOT allow the adhesive to drip onto the boot cowl.
Carefully re-cleco hold down strip to boot cowl and rivet in place, be sure to apply
silicon to the rivets. The adhesive not only bonds the windshield to the strip, but
helps create a water tight seal.
46.
Install the Flap Gap Seal to the fuselage. The skylight and flap will lie under the
Flap Gap Seal. Refer to
FIGURE 10G-45
. Locate attachment holes in Flap Gap
Seal per
FIGURE 10G-45
. Locate and drill a #20 hole through the Flap Gap Seal
and Wing Gap Seal. Remove Flap Gap Seal and install a 6-32 Single-Ear Nut
plate to Wing Gap Seal. Re-install Flap Gap Seal. Refer to
FLAP RIGGING
for
proper neutral positioning of flap.
47.
Apply tape outside of marked perimeter of wing cuff on windshield. Scuff inside of
Wing Cuff with Scotch-brite. Apply 3M 2216 Adhesive to inside of cuff. Carefully
apply wing cuff to windshield inside of marked line. Tape in place and use
sandbags or similar weight to help press wing cuff to windshield until adhesive
dries.
48.
Remove weight and tape.
49.
It is recommended, to apply a fillet of silicon seal all the way around the front of
the windshield, at the edge of the trim strips, around wing cuffs and windshield
mating strips after installation. Apply a suitable masking tape along the edges
and another line of masking tape about 1/8
” from the edge. Apply a small bead
between the tapes and smoothen with your finger to form a fillet. Remove
masking tape before the silicone hardens. This will aid in preventing the
penetration of water and dirt.
CAUTION
THE 3M 2216 ADHESIVE BOND BETWEEN THE FIBERGLASS
WINDSHIELD STRIP AND ACRYLIC WINDSHIELD IS CRITICAL.
A PROPER BOND ASSURES THE STRUCTURAL INTEGRITY
OF THE WINDSHIELD INSTALL. WITHOUT THIS BOND, THE
WINDSHIELD WILL DEFORM AND PULL AWAY FROM THE
HOLD DOWN STRIP.
