Diamond DA 40 Flight Manual page 231

DA 40 AFM
Flaps
Construction: GFRP/CFRP composite sandwich
Hinges: There are 6 hinges, which are hinge pins mounted in an aluminum
bracket. They are secured in position by a roll pin. The absence of this
roll pin can lead to the loss of the hinge pin and a consequent loss of flight
safety. Another aluminum fitting is located at the fuselage and is attached
to a torsion tube. The torsion tube is located in the fuselage, creating a
connection between the left and right flaps.
Operation: A rod-end bearing is screwed into a steel push rod and locked by means
of a nut which has locking varnish applied to it. Damage to this varnish
can indicate a twisting and thus a change to the adjustment. The
connection between the rod-end bearing and the control horn is a bolt,
the nut of which is likewise sealed with locking varnish.
The flap control horn is attached to the flap with 3 screws.
The flaps are driven by an electric motor and have 3 settings:
- Cruise (UP), totally retracted
- Take-off (T/O), and
- Landing (LDG).
Doc. # 6.01.01-E Rev. 8 01-Dec-2010
Airplane
Description
Page 7 - 5