Dynon Avionics SkyView System Installation Guide - Manual (Page 205)

Autopilot Servo Installation, Configuration, and Calibration
SkyView System Installation Guide – Revision S 10-9
mode SETUP MENU > HARDWARE CALIBRATION > SERVO CALIBRATION > TEST (you can
start this test, proceed to the step where it first activates and immobilizes the servos,
and then cancel the test mode once you’ve performed this free play test).

Gently attempt to move the aircraft control surface by manipulating it manually by
hand. If there is any significant movement possible - more than 1 degree of free play of
the control surface is considered excessive - examine the servo, its mounts, and the
linkages and/or cables that connect it to the control surface to discover where the play
is being introduced.