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and your radio is equipped with digital or manual end
point adjustments, make those adjustments using the
transmitter features (see your radio instruction manual
for further details). If your radio does not have these
functions you can still adjust the linkage. For more
linkage travel, move the adjustable servo connector
to a hole farther out from the center of the servo arm.
For less travel, move the connector to a hole closer to
the center of the servo arm. Ideally, you don't want
the servo to bind while at idle or full throttle. This
will cause excessive strain on the servo and will also
cause excessive drain on the battery pack.
PARTS REQUIRED
ELEVATOR PUSHROD
INSTALLING THE CONTROL HORN
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{1} 2mm x 590mm Threaded Wire w/L-Bend
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{1} Nylon Control Horn w/Backplate
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{2} 2mm x 16mm Machine Screws
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{1} Nylon Clevis
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{1} Nylon Snap Keeper
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1) Position the nylon control horn on the bot-
tom, right side of the elevator. The centerline of the
control horn should be 5/16” out from the fuselage
side, at the hinge line. Position the control horn so
the clevis attachment holes are directly over the hinge
line. See photo # 36 below.
Photo # 36
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2) When satisfied with the alignment, use a
5/64” drill bit, and the control horn as a guide, and
drill the two mounting holes through the elevator.
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3) Mount the control horn to the elevator by in-
serting two 2mm x 16mm machine screws through
the control horn mounting base, through the elevator
and into the backplate. Tighten the screws, but do
not overtighten them. Be careful not to crush the
wood.
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4) Using a modeling knife, remove the cover-
ing from over the elevator pushrod exit hole in the
rear of the fuselage. The hole is located on the right
side of the fuselage, 2-1/4” in front of the back edge
of the fuselage and 7/8” up from the bottom of the
fuselage.
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5) Using a modeling knife, carefully cut off the
excess nylon pushrod housing 1/8” in front of the balsa
support block. See photo # 37 below.
INSTALLING THE PUSHROD
Photo # 37
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6) Locate a plastic servo arm that came with
your servo. Using wire cutters, remove all but one
of the arms.
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7) Using a 5/64” drill bit, enlarge the second hole
out from the center of the servo arm. Insert the L-bend
in the 2mm x 590mm pushrod wire down through the
hole. Place a nylon snap keeper over the wire to hold
it securely to the servo arm. See figure # 7 below.
Figure # 7
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8) Plug the elevator servo lead into your receiver
and turn on the radio system. Center the elevator trim
lever on your transmitter.
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9) Slide the threaded end of the 2mm x 590mm
pushrod wire into the nylon pushrod housing, from
inside the servo compartment, until the threaded por-
tion exits the back of the fuselage.