Diamond DA 42 NG, Maintenance Manual

Page: 867 / 2339

AIRCRAFT
DA 42 NG AMM Flight Controls
Doc # 7.02.15
Rev. 4
27-30-00
Page 203
15 Mar 2018
C. Elevator Control Test Procedure Using the Protractor (Electronic Deflection Gauge)
Note: If you use a protractor, make sure that the airplane does not move in pitch during
the test procedure. It will cause errors in the test.
Detail Steps/Work Items Key Items/References
(1) Raise the airplane on jacks. Refer to Section 07-10.
(2) Put a trestle under the rear fuselage. To prevent a movement in pitch.
(3) Level the airplane. Refer to Section 08-00.
(4) Make a copy of the Control Surfaces
Adjustment Report.
Refer to Section 06-00.
Use it to record measurements.
(5) Remove the left pilot’s seat. Refer to Section 25-10.
(6) Install the rigging pin through the stick mounting
block and the torque tube.
Refer to Figure 1.
(7) Remove the horizontal stabilizer tips:
S
Remove the 8 screws that attach the tip to
the stabilizer.
Hold the tips.
(8) Protractor reference:
S
Place the protractor on the edge of the
stabilizer onto the rib where the tips were
removed before.
S
Reset the protractor.
This is the 0° reference plane. Make
sure that the protractor is placed
correctly. Refer to Figure 4.
(9) Protractor measurement:
S
Place the protractor on the elevator surface
and read the angle of deflection of the
elevator surface.
S
Read the angle of deflection of the elevator
on the protractor. The correct angle must be
6.5° because then the elevator is centered.
Make sure to use the same orientation
of the protractor like before, taking
measurement.
Refer to Figure 4.
Record the measurement.
(10) Remove the rigging pin from the stick mounting
block.