Autopilot Calibration - Garmin GI 275 Installation Manual

5.7.2

Autopilot Calibration

5.7.2.1 Garmin GFC 600 Autopilot
The autopilot interface to a Garmin GFC 600 must be verified. The following calibration procedure is used
to ensure that autopilot information is correctly displayed on the GI 275 Primary ADI.
Complete the following procedure:
1. Power on the aircraft avionics.
2. Engage the autopilot by pressing the AP button on the GMC 605.
3. Verify ROL and PIT ALTS are displayed, green lights next to AP, FD, and YD are illuminated on
the GMC 605.
NOTE
"YD" is only displayed if the aircraft has a yaw damper installed and configured.
4. Verify that the magenta flight director bars are displayed on the GI 275.
a. Move the pitch wheel on the GMC 605 and verify that the flight director bars displayed on the
GI 275 update accordingly.
5. Adjust the altitude bug on the GI 275.
6. Verify that the ALTS value in the armed section on the GMC 605 updates to the altitude bug value
on the GI 275.
190-02246-10
Rev. 11
GI 275 Part 23 AML STC Installation Manual
Page 5-69