Hangar 9 T-34 Mentor 40 ARF Assembly Manual page 52

Section 15: Linkage Installation
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. .Step 22
Attach.the.control.horn.using.three.2-56.x.3/4".screws.
and.the.control.horn.backplate.
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. .Step 23
Center.the.aileron.servo.electronically.using.the.radio.
system..Install.a.servo.arm.onto.the.aileron.servo..Attach.
the.pushrod.with.clevis.to.the.control.horn..Physically.
place.the.aileron.control.surface.in.neutral..Mark.the.
pushrod.where.it.crosses.the.holes.in.the.servo.arm.
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. .Step 24
Bend.the.wire.90.degrees.at.the.mark.made.in.the.
previous.step..Cut.the.wire.1/2".(13mm).above.the.bend..
Drill.1.3/32".(2mm).hole.in.the.servo.arm.then.slide.the.
wire.through.the.hole.in.the.aileron.servo.arm..Secure.the.
wire.using.a.nylon.wire.keeper.
Note:.Remove.the.excess.arms.from.
the.servo.horn.using.side.cutters.
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.Step 25
Repeat.Steps.19.through.24.for.the.other.aileron.servo.