Maintenance Manual XA41/XA42
AMM-XA42-0040-001 C.00
Page date:
Page
11
25.09.2018
Chapter 27
To adjust the ailerons neutral position and/or deflection:
1
Lock one control stick in the neutral position with a temporary fixture.
2
Measure the length of the aileron rod inboard. Adjust the length, if necessary (refer
to chapter 27-00-03).
3
Make sure that the aileron trailing edge aligns with the inboard trailing edge of the
wing.
4
If necessary, adjust the length of the aileron outboard rod and/or the aileron CFRP
rod.
5
Make sure that the aileron travel is in the specified tolerances, refer to chapter
27-00-00.
6
Adjust the stop bolts on the fuselage structure, left and right from the torque tube, if
necessary.
7
Do the procedures again for the other aileron.
8
Make sure that the control sticks move freely in the full travel range. Make sure that
the travel of the control sticks is symmetrical for the left side and the right side.
To remove the ailerons, refer to chapter 57-60-00.
27-10-01 Spades
The spade arms are attached to the central hinge point of the ailerons with two bolt
connections
The spades are attached to the spade arms with three screw connections.
To remove the spades and/or the spade arm:
1
Remove the two bolts from the top of the spade arm. Refer to Figure 27-8, detail X.
2
Remove the three screws from the spade mounting plate. Refer to Figure 27-8,
detail Y.
3
Install the spades in the opposite sequence.
4
Do a test flight to make sure that the roll trim is correct.
5
Safety the bolt thread with locking varnish.
Roll trim correction
When the aircraft rolls (turns around its longitudinal axis) to the right, lower the leading
edge of the left spade. Thus, the downlift increases and pushes the left aileron up.
When the aircraft rolls to the left, lower the leading edge of the right spade.
For each 10°/sec roll imbalance, add one AN960-10 washer between the related front
attachment point (between the spade and the spade arm).
Try to get a satisfactory adjustment with a minimum of washers.
The maximum quantity of washers must not be more than 5.
As an alternative, use spade arm shim plates instead of the washers:
-
Spade arm shim plate 1.5mm aft – XA42-5760-401 (to raise the leading edge)
-
Spade arm shim plate 1.5mm front – XA42-5760-402 (to lower the leading edge)
Summary of Contents for XA41
Page 281: ...Maintenance Manual XA41 XA42 AMM XA42 0040 001 C 00 Page 18 Page date Appendix 24 09 2018 ...
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