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Doc # 6.02.01 Page 5 Rev. 4 09 Jan 2003
Intentionally left blank 27-CONTENTS Flight Controls AMM
CHAPTER 27 FLIGHT CONTROLS
1. General This Section tells you about the operation and the adjustment of the flight controls. It also tells you about the assembly of the flight controls. Refer to the related Section for the data on a specified system. This Section tells you how standard parts are used to make the flight controls for each system. Note: Equipment which is certified for installation in the DA 40 is listed in Section 6.5 of the Airplane Flight Manual. Such equipment may be installed in accordance with the Airplane Maintenance Manual. Any equipment which is not listed in Section 6.5 of the Airplane Flight Manual is called "Additional Equipment". The installation of Additional Equipment is a modification which must be handled in accordance with national regulations or a Service Bulletin. 2. Description The DA 40 has the usual flight controls. An elevator attached to the horizontal stabilizer gives longitudinal control. Ailerons attached to the trailing edge of each wing give lateral control. The rudder attached to the vertical stabilizer gives yaw control. Flaps attached to the trailing edge of each wing give extra lift for landing and for take-off. The DA 40 has a control stick for each pilot. The pilot can set the elevator trim with a control wheel in the center console. Each pilot has a rudder pedal assembly. The assembly attaches to the cockpit floor. The pilot can adjust the position of the rudder pedals with an adjuster handle on the rudder pedal assembly. The pilot moves each primary control through a system of push-rods and bellcranks. Cables operate the rudder. An electric actuator operates the flaps. 3. Push-rods The push-rods used in the DA 40 have standard end fittings. Also most rods use a standard diameter tube. Only the length of the rods is special. Some rods have one fixed fork end and one adjustable eye-end fitting. Other rods have two adjustable eye-end fittings. Figure 1 shows an example of a standard push-rod. The rod has one adjustable end fitting. The end fitting has an eye-end with a threaded shaft. The eye-end has a spherical bearing. A jam-nut on the threaded shaft locks the eye-end in position. A toothed washer locks the nut. You can turn the eye-end to adjust the length of the rod. Doc # 6.02.01 Page 1 Rev. 4 09 Jan 2003
Fixed Fork-End Fitting Welded into Place
with Spherical Bearing Figure 1: Standard Push-rod 27-00-00 Flight Controls AMM
A steel tube connects the end fittings. A threaded insert is welded into the steel tube to take the eye-end. A safety hole is drilled in the end of the steel tube with the adjustable end fitting. The safety hole shows you if the installation of the eye-end to the insert in the steel tube is correct. If you can push the safety wire through the hole to the other side, the eye-end installation is not correct. But, if you cannot push the safety wire through the hole, the eye-end installation is correct. A fixed fork-end is welded to the steel tube. Refer to Maintenance Practices in this Section for the procedures for adjusting push-rods. 4. Control Rigging The flight controls of the DA 40 have been designed to make correct rigging as easy as possible. All levers and bellcranks have holes for rigging pins. The rigging pins lock the levers in the neutral position. Doc # 6.02.01 Page 3 Rev. 4 09 Jan 2003
Intentionally left blank 27-00-00 Flight Controls AMM
Maintenance Practices 1. General These Maintenance Practices tell you how to do procedures (such as push-rod adjustment) which apply to all of the control systems. www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：钻石40飞机维护手册 DA 40 SERIES AMM 3
