Model Tech P-47 Thunderbolt Instructions For Final Assembly page 28

Step 3: Connecting the Pushrod Assemblies
To prevent the connector nuts from loosening during flight, apply a drop of thin C/A to them. Allow the C/A to dry
before proceeding.
Connect your radio system and plug the retract servo lead into its proper slot in the receiver. Turn on your radio
system and flip the retract switch on your transmitter into the "up" position.
By hand, move each retract into the full up and locked position. Push firmly on each pushrod wire to verify this.
When you bend the pushrod wires it will shorten them both slightly. You may need to loosen the servo connectors
and readjust the length of the pushrods so that the retracts will lock in both directions.
Cycle the retracts up and down several times to test their operation. You may need to make small bends and/or
adjustments to the pushrod wires and the servo connectors to eliminate any binding that might be present in the linkage.
IMPORTANT
It's important that the retract linkage operates smoothly. Any binding or stress put on the linkage will cause excessive
drain to your flight battery and/or damage to the retract servo.
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Install two adjustable servo connectors onto a large servo
wheel. Each connector should be installed in a hole that is
7/16" out from the center of the wheel.
IMPORTANT
When threading on the connector nuts, don't tighten them
completely. You don't want the connectors loose, but you
do want them to be able to rotate without binding.
You will have to enlarge the holes in the servo wheel
using a 5/64" drill bit to accommodate the connectors.
With both retracts in the up and locked position, slide
the servo connectors over the end of each pushrod wire and
attach the servo wheel to the servo. The servo connectors
and the pushrod wires should be directly opposite each other.
Install and tighten the machine screws in the tops of the
servo connectors.
Use wire cutters to remove the excess wire, leaving about
5/16" of wire beyond each connector.
Rotate the servo wheel 180º so that the retracts are in the
full down and locked position.
Use a pair of pliers to carefully bend a U-shape in each
of the pushrod wires so they don't hit the sides of the servo
connectors.