Garmin G1000 Maintenance Manual page 162

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4. Turn the HDG knob to the left and verify that the command bars move to the left and the
control wheel turns to the left (counter-clockwise).
5. Turn the HDG knob to the right and verify that the command bars move to the right and the
control wheel turns to the right (clockwise).
6. Push the CWS button and verify that "CWS" is annunciated in white on the PFD. Pull the
control wheel to the middle of the pitch control range.
7. Release the CWS button. Verify that the Autopilot clutches re-engage and hold the wheel
stationary.
8. Holding the control wheel lightly, press the UP key to increase the pitch reference. Verify
that the command bars move up approximately 1/2 degree and the control wheel begins
moving aft.
9. Hold the control wheel and press the CWS button, re-synchronizing the pitch reference and
re-centering the control wheel.
10. Release the CWS button and verify that servo clutches re-engage before releasing the
control wheel.
11. Press the DN key. Verify that the command bars command down and the control wheel
begins moving forward.
12. Hold the controls and press CWS to re-center the command bars and stop control wheel
movement.
13. With the Autopilot still engaged and the CWS button pressed, move the control wheel to its
aft limit.
14. Release the CWS button and apply continuous forward pressure, slowly moving the control
wheel. After 1 or 2 seconds, the trim wheel should begin moving in a trim up direction.
15. Grip the control wheel and press the CWS button. Trim motion should stop.
16. Move the control wheel to the forward limit and release the CWS button.
17. Slowly pull back on the control wheel. After a similar delay, the trim wheel should begin to
trim down.
18. Relieve pressure on the wheel and the trim motion should stop. Verify that the trim wheel is
free to turn.
19. Hold the control wheel and press the AP DISC switch to disconnect the autopilot.
20. Engage VS mode by pressing the VS key. Verify the PFD display 'VS' in green and
indicates a pitch reference of '0 FPM'.
21. Press the FLC key and verify that "FLC" is annunciated on the PFD in green.
22. Press the ALT key and verify that the "ALT" annunciation is displayed in green on the PFD.
23. Press the FD key and verify that the mode annunciations and command bars are removed
from the display.
24. Press the YD key and verify that the "YD" annunciation is displayed in green on the PFD.
25. Press the rudder pedals and verify that the yaw servo is resisting movement of the rudder
pedals.
26. Press the AP DISC button and verify that a flashing yellow "YD" annunciation is displayed
on the PFD.
27. Verify that the rudder pedals move freely.
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Rev. B
G1000 System Maintenance Manual
190-00907-00