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3. Elevator Control System Adjustments If you cannot get the correct range of movement of the elevator control system, use this procedure to adjust the system. Gust travel refers to the amount of travel remaining at the control surface with the control stick held against the cockpit stop. WARNING: IF YOU DO AN ADJUSTMENT OF A PUSH-ROD, YOU MUST MAKE SURE THAT THE PUSH-ROD IS STILL IN SAFETY. IF YOU DO NOT DO THIS, THE PUSH-ROD CAN DISCONNECT. THIS CAN CAUSE DEATH OR INJURY TO A. Equipment PERSONNEL. Item Quantity Part Number Ruler or deflection gauge. 1 Commercial. Rigging pins. 3 - B. Elevator Control Adjustment Procedure Refer to Figure 1. Detail Steps/Work Items Key Items/References (1) Remove these items for access: S The pilots' seats. S The rudder. Refer to Sections: 25-10. 55-40. (2) Install rigging pins in the following: S Through the stick mounting block and the torque tube. S The idler lever. S The rear bellcrank. On the control bulkhead. On the front main bulkhead. On the vertical stabilizer rear web. (3) If you cannot put a rigging pin into a lever or bellcrank, adjust the push-rods as necessary. Refer to Section 27-00 for the push-rod adjustment procedure. (4) Make sure that the elevator aligns with the horizontal stabilizer. At the stabilizer tips. AIRCRAFT Flight Controls DA 40 Series AMM Detail Steps/Work Items Key Items/References Page 204 20 Sep 2007 27-30-00 Doc # 6.02.01 Rev. 5 (5) If the elevator does not align with the horizontal stabilizer, adjust the vertical push-rod at the rear bellcrank. Refer to Section 27-00 for the push-rod adjustment procedure. (6) Remove rigging pins from the following: S The stick mounting block. S The idler lever. S The rear bellcrank. On the control bulkhead. On the front main bulkhead. On the vertical stabilizer rear web. (7) Do a test for the correct range of elevator movement. Refer to Paragraph 2. (8) 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. (9) Install these items: S The pilots' seats. S The rudder. Refer to Sections: 25-10. 55-40. AIRCRAFT DA 40 Series AMM Flight Controls Doc # 6.02.01 Rev. 5 27-30-00 Page 205 20 Sep 2007 4. Elevator Push-Rod Access Elevator Push-Rod Remove/Install Access References Between the control torque tube and the idler lever at the front main bulkhead. Pilots’ seats. Refer to Section 25-10. Between the idler lever at the front main bulkhead and the bellcrank at the vertical stabilizer rear web. Pilots’ seats. Rudder. Refer to Section 25-10. Refer to Section 55-40. Between the bellcrank at the vertical stabilizer rear web and the elevator. Rudder. Refer to Section 55-40. 5. Elevator Bellcrank and Lever Access Elevator Bellcrank/Lever Remove/Install Access References Idler lever at the front main bulkhead. Pilots’ seats. Refer to Section 25-10. Bellcrank at the vertical stabilizer rear web. Rudder. Refer to Section 27-20. AIRCRAFT Flight Controls DA 40 Series AMM Page 206 20 Sep 2007 27-30-00 Doc # 6.02.01 Rev. 5 Intentionally left blank AIRCRAFT DA 40 Series AMM Flight Controls Doc # 6.02.01 Rev. 5 27-38-00 Page 1 20 Sep 2007 Section 27-38 Flight Controls - Elevator Trim 1. General The DA 40 has an elevator with a trim tab. The trim tab is mechanically operated. This lets you trim the airplane for different speeds and center-of-gravity positions. A handwheel on the center console controls the elevator trim. An indicator tells the pilot the trim setting. A flexible cable moves the trim tab. AIRCRAFT Flight Controls DA 40 Series AMM Page 2 20 Sep 2007 27-38-00 Doc # 6.02.01 Rev. 5 Figure 1: Elevator Trim Mechanism in the Cockpit AIRCRAFT DA 40 Series AMM Flight Controls Doc # 6.02.01 Rev. 5 27-38-00 Page 3 20 Sep 2007 2. Description The trim installation has 3 main parts: ) A handwheel assembly with a trim indicator. ) A flexible cable which connects the handwheel to the trim tab. ) The trim tab actuator assembly. Figure 1 shows the elevator trim mechanism in the cockpit. Figure 2 shows the trim tab actuator assembly. A. Trim Handwheel Assembly A handwheel assembly on the center console controls the elevator trim system. The assembly has a www.aero.cn 航空翻譯 www.aviation.cn 本文鏈接地址：鉆石40系列AMM 2
