27-20-00
Flight Controls
AMM
3. Rudder Control System Adjustments
If you cannot get the correct range of movement of the rudder control system, use this procedure to adjust the system.
A. Equipment
Item Quantity Part Number
Cable tension gauge. 1 Commercial.
Ruler or deflection gauge. 1 Commercial.
B. Rudder Adjustment Procedure
Detail Steps/Work Items Key Items/References
(1) Remove these items for access: S The pilots’ seats. S The passenger seat. Section 25-10.
(2) Set both rudder pedals fully forward.
(3) Set the rudder pedals central. Make sure the rudder is in the neutral position. The left pedal must align with the right pedal.
(4) If necessary, adjust the length of the cables between the yoke and the rudder lower mounting bracket. S Remove the lock-wire from the turnbuckles. S Adjust the turnbuckles to set the rudder to neutral. S Do a test for correct cable tension. S Tighten the turnbuckles and install the lock-wire. Refer to Figure 4. Below the passenger seat. Refer to the Adjustment Report.
Doc # 6.02.01 Page 203
Rev. 4 09 Jan 2003
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AMM
DA 40 Series
(5) Set the rudder pedals to fully left. The rudder must hit the stops at the rudder pedestal. The rudder position must be the distance to the left shown in the Control Surfaces Adjustment Report. (Measured from the neutral position).
(6) If necessary, adjust the rudder stop bolt on the left side of the rudder lower mounting-bracket: S Release the jam-nut on the left stop bolt. S Adjust the stop bolt to give the correct range of movement. S Tighten the jam-nut on the stop bolt. The rudder position must be the distance to the left shown in the Control Surfaces Adjustment. (Measured from the neutral position).
(7) Set the rudder pedals to fully right. The rudder must hit the stops at the rudder pedestal. The rudder position must be the distance to the right shown in the Control Surfaces Adjustment Report. (Measured from the neutral position).
(8) If necessary, adjust the rudder stop bolt on the right side of the rudder lower mounting-bracket: S Release the jam-nut on the right stop bolt. S Adjust the stop bolt to give the correct range of movement. S Tighten the jam-nut on the stop bolt. The rudder position must be the distance to the right shown in the Control Surfaces Adjustment Report. (Measured from the neutral position).
(9) Do a test for the correct range of rudder movement. Refer to Paragraph 2.
(10) Do an inspection of all the controls that you have adjusted. S If necessary for your Airworthiness Authority, do a second inspection of the controls.
(11) Install these items: S The pilots’ seats. S The passenger seat. Refer to Section 25-10.
27-20-00
Flight Controls
AMM
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