B. Remove the Pitch Servo Clutch
Detail Steps/Work Items  Key Items/References 
(1)  Remove the pitch servo.  Refer to Paragraph 5. 
(2)  Release the clamps which connect the bridle cable to the elevator push-rod. 
(3)  Remove the bridle cable. 
(4)  Remove the 2 screws which attach the clutch to the mounting plate.  Hold the clutch. 
(5)  Remove the clutch clear of the airplane. 

Doc # 6.02.01 Page 207
Rev. 4 09 Jan 2003

22-10-00
AMM

C. Install the Pitch Servo Clutch
DA 40 Series

Detail Steps/Work Items  Key Items/References 
(1)  Remove the pilot's seat or the co-pilot's seat.  Refer to Section 25-10. To give access for the rigging pin. 
(2)  Put the clutch in place on the mounting plate. 
(3)  Install the 2 screws which attach the clutch to the mounting plate. 
(4)  Center the elevator control system with a rigging pin at one control stick.  Refer to Section 27-30. 
(5)  Center the capstan.  The recess for the ball in the middle of the bridle cable must be in the uppermost position. 
(6)  Install bridle cable to capstan.  The ball in the middle of the bridle cable must engage in the recess on the capstan. Wrap bridle cable around capstan one turn to each side. 
(7)  Connect the ends of the bridle cable to the elevator push-rod with the clamps.  Tighten clamps lightly to allow adjustment (see next step). 
(8)  Using a small plastic hammer, move the clamps along the push-rod to adjust the bridle cable tension.  Adjust tension to 89 ± 22 N (20 ± 5 lb). Measure cable tension with cable tension gauge. 
(9)  Tighten the clamps. 
(10)  Remove the rigging pin from the control stick. 
(11)  Install the front seat which was removed.  Refer to Section 25-10. 
(12)  Install the pitch servo.  Refer to Paragraph 5. 

Page 208 Doc # 6.02.01 09 Jan 2003 Rev. 4
22-10-00
Auto Flight
AMM

7. Remove/Install the Pitch Trim Servo
A. Remove the Pitch Trim Servo
Detail Steps/Work Items  Key Items/References 
(1)  Remove the co-pilot's seat.  Refer to Section 25-10. 
(2)  Dis-connect the connector from the servo. 
(3)  Remove the 2 screws which attach the servo to the mounting plate and the clutch.  Hold the servo. 
(4)  Remove the servo clear of the airplane. 

B. Install the Pitch Trim Servo
Detail Steps/Work Items  Key Items/References 
(1)  Put the servo in place on the mounting plate. 
(2)  Install the 2 screws which attach the servo to the mounting plate and clutch.  The upper forward screw also holds the chain adjuster. Ensure proper chain tension. 
(3)  Connect the connector to the servo. 
(4)  Do a test of the autopilot system: S Set master switch to ON. S Set avionics master switch to ON. S Observe self-test of the flight control computer. S Set avionics master switch to OFF. S Set master switch to OFF.  If no error message appears, then the system is operative. 
(5)  Install the co-pilot's seat.  Refer to Section 25-10. 

Doc # 6.02.01 Page 209
Rev. 4 09 Jan 2003

22-10-00
AMM

8. Remove/Install the Pitch Trim Servo Clutch
A. Remove the Pitch Trim Servo Clutch
Detail Steps/Work Items  Key Items/References 
CAUTION: DO NOT APPLY STRONG FORCES TO THE CARDAN SHAFT. THE UPPER CARDAN JOINT CONNECTS TO A PART WHICH IS WEAK BY DESIGN TO GIVE OCCUPANT PROTECTION IN AN EMERGENCY LANDING. 
(1)  Remove the pitch trim servo.  Refer to Paragraph 7. 
　
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