190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout
Rev. AC
Page 33-41
6. Go to the Main page in configuration mode and verify the proper TRIM ACTIVITY if the Roll
servo is connected to an auxiliary trim motor.
a) Center the aileron trim switch to input no TRIM command. Verify the aileron trim switch is
not moving. Verify the Roll servo is properly indicating no trim activity.
b) Use the aileron trim switch to input a roll right TRIM command. Verify the aileron trim
switch properly moves for roll right trim. Verify the Roll servo is properly indicating ROLL
RIGHT trim activity.
c) Use the aileron trim switch to input a roll left TRIM command. Verify the aileron trim
switch properly moves for roll left trim. Verify the Roll servo is properly indicating ROLL
LEFT trim activity.
d) If the aileron trim response is reversed, go to the AP CONFIG page and change the roll
servo TRIM MOTOR DIRECTION to REVERSE, then repeat step all of step 6.
e) Finally, verify the electric trim motor responds in the proper directions using the TRIM L
and TRIM R softkeys on the AP CONFIG page.
