arf SBACH300 20CC V2, Instruction Manual, Page: 22 / 42

3. The slots for the supplied hinges are pre cut. Locate the hinges and dry fit the
hinges and aileron into place and test the operation. The hinges should seat fully
into the slots so that the hinge line gap is minimal while still allowing full aileron
deflection.
4. Before gluing the hinges in you must first clean the hinges of any mold release
agent using isopropyl alcohol. also recommends scuffing up the plastic with light
sandpaper for maximum glue adhesion.
5. Mix up some 30 minute epoxy and using a toothpick or small wooden dowel coat
the inside of each hinge slot with epoxy. Also put a thin layer of epoxy on one side
of the hinges. Install this end into the slots of the rudder and make sure each hinge is
properly aligned at exactly 90 degrees to the hinge line.
6. Now coat the other end of the hinges with epoxy and install the aileron into the
trailing edge of the wing. Again, make sure the hinges remain in proper alignment.
Using paper towels and some isopropyl alcohol clean off any excess epoxy from the
hinges and surrounding areas.
7.Make sure the aileron is fully seated so that the hinge gap is minimal while still
allowing full deflection of the aileron. When satisfied, use some masking tape to
hold the aileron in place along the bottom and counterbalance. After the epoxy has
cured, remove the masking tape and check for proper operation. If the hinges are
dry some light oil carefully placed on each hinge will help greatly.