Garmin G3X Installation Manual page 511

31.4.4.7 Step by Step Trim System Setup
On-ground Setup
After setting up and testing the GSA 28 based autopilot and yaw damper systems, the pilot can configure
the trim system.
1. Go to the AP pages in configuration mode and enable the TRIM MOTOR CONTROL for all
servos that are connected to auxiliary trim motors.
NOTE
The Trim Motor Max Run Time item allows optional configuration of a time limit for use
with manual electric trim. When the manual trim input switch is pressed, the electric trim
motor will stop running after the time limit expires, and will not run again until the trim
input switch is released and pressed again. This can help prevent "trim runway" caused
by a stuck trim input switch. If the maximum trim motor run time is set to "No Limit", the
electric trim motor will run indefinitely as long as the manual trim input switch is held.
This item has no effect on auto trim.
Figure 31-15 Roll, Pitch, and Yaw Configuration Pages
190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout
Rev. AA Page 31-59