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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 roll servo. Refer to Paragraph 3.
AIRCRAFT
Auto Flight DA 40 Series
AMM
Page 206
20 Sep 2007 22-10-00 Doc # 6.02.01
Rev. 5
5. Remove/Install the Pitch Servo
A. Remove the Pitch Servo
Detail Steps/Work Items Key Items/References
(1) Remove the trim/cover from the front face of the
baggage compartment.
(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 from the airplane.
B. Install the Pitch 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.
(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 trim/cover to the front face of the
baggage compartment.
AIRCRAFT
DA 40 Series
AMM
Auto Flight
Doc # 6.02.01
Rev. 5 22-10-00 Page 207
20 Sep 2007
6. Remove/Install the Pitch Servo Clutch
A. Equipment
Item Quantity Part Number
Cable tension gauge. 1 Commercial.
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 from the airplane.
AIRCRAFT
Auto Flight DA 40 Series
AMM
Page 208
20 Sep 2007 22-10-00 Doc # 6.02.01
Rev. 5
C. Install the Pitch Servo Clutch
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.
AIRCRAFT
DA 40 Series
AMM
Auto Flight
Doc # 6.02.01
Rev. 5 22-10-00 Page 209
20 Sep 2007
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 from 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
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钻石40系列AMM 1(88)
