DG Flugzeugbau DG-800A, Руководство по обслуживанию, Страница: 70 / 163

Maintenance Manual DG-808C
Issued: May 2012 TN 800/41 4.9
4.7.3 Flaperons
To reduce the friction as far as possible a 38 mm (1.7 in.) wide selfadhesive
Teflon coated glass fabric is glued on the upper side of the flaperon see sketch.
Prior to removing the old fabric, mark its
trailing edge with pencil on the flaperon
surface. The fabric must be installed so
that the sealing slides always on the
fabric. Cutting the front of the fabric is
easiest if the sealings are not installed.
Insert the flaperon and use full
displacement.
Cut the front end of the fabric with a
sharp knife along the wing trailing edge
see sketch
With the sealing installed, you have to measure the position of the front end. Cut
it off by hand with the flaperon removed from the wing..
Internal sealing of the lower wing surface
Warning:
Operation of the glider without this sealing is prohibited.
The flaperons are sealed at the lower surface with 38 mm Teflon-glass-fabric
tape.
a) Removing the flaperons:
To remove the flaperons you have to remove the internal sealing first. Peel
off carefully so that the tape does not tear and no remains of the glue remain
on the wing surface.
In case combi tape is installed together with the internal sealing the combi
tape has to be removed too, as otherwise the internal sealing can’t be
installed again.
Execute the work described in section 4.6.1.
Reinstalling the flaperons:
Remove carefully any remains of the glue. Install the flaperon in the wing
but don’t screw on the control surface horn. Use new self locking nuts (M5
DIN985-8 zn)
Rotate the wing upper surface up and deflect the flaperon to its max.
negative displacement. Use a small brush and apply talcum powder onto the
flaperon leading edge. Then deflect the flaperon to its max. positive
displacement and remove the talcum powder from wing and flaperon
surface.. Clean the gluing areas with Acetone.
Deflect the flaperon to its max. negative displacement again and fix in this
position e.g. with tape.
cut off here
full
displacement
Teflon tape