E-flite Pitts Model 12 15e ARF - Manual (Page 23)

23 E-flite Pitts Model 12 15e ARF Assembly Manual
  7. Hold the rudder in neutral. Use the radio to center
the rudder servo and make sure the servo arm is
perpendicular to the servo center line. Mark the pushrod
with a felt-tipped pen where it crosses the outside hole on
the servo arm.
  8. Bend the pushrod wire 90 degrees at the mark
made in the previous step. Secure the pushrod wire
to the servo arm using a pushrod wire clip. Trim any
excess pushrod wire to prevent it from rubbing the
fuselage or servo with side cutters.