E-flite Jenny JN-4 Slow Flyer 250 ARF - Manual (Page 14)

14 E-flite Jenny JN-4 Slow Flyer ARF Assembly Manual
  5. Check to make sure the elevator and stabilizer
are parallel.
  6. Slide the pushrod wire through the connector. With the
elevator centered, thread a 2mm x 4mm machine screw
in the connector and tighten it to secure the pushrod wire.
 7. Repeat Steps 1 through 6 to install the rudder servo
and linkage.