Hangar 9 Extra 260 Assembly Manual page 28

Section 8A – Rudder Servo Installation: Saito 1.80
  Step 8
Adjust the position of the threaded end on the
cable so it will thread into the ball end and have
slight tension on the cable to the rudder. It will
take some time to get the position right. Once the
position of the end is correct, pass the cable back
through the crimp and secure the cable. Thread the
end into the ball end.
Note: The cables will cross inside the fuselage
to get the correct geometry.
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 Step 9
Repeat Steps 2 through 8 to assemble and install the
second rudder cable. (Step 5 is only required once.)
 Step 10
With the radio on, check the operation of the
rudder. Adjust the cables so when the rudder servo is
centered, the rudder is centered as well. There
will be tension on the cables. Adjustments can be
made at the rudder control horn and at the servo arm.
Once adjustments are made, secure the servo arm
to the rudder servo using the screw that came
with the servo.
Note: Check the tension of the rudder cables
before every flying session, as they may
stretch over time.