WATT AGE P-47 Thunderbolt EP ARF Assembly Instruction Manual - page 20
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❑ Slide the adjustable servo connector/servo horn assembly over the
plain end of the pushrod wire, then attach the servo horn to the servo,
making sure that the servo horn is centered and points toward the middle
of the fuselage.
❑ Double-check that both elevator halves are centered, then carefully
install and tighten the machine screw in the top of the adjustable servo
connector to secure the elevator pushrod wire into place.
❑ Cut away the excess pushrod wire, then install and tighten the servo horn retaining screw to hold the servo horn securely to
the servo.
❑ Remove the masking tape from the elevator halves and double-check that the servo horn and both elevator halves are still
centered. If the elevator halves are not centered, adjust the clevises and/or adjustable pushrod connector until they are. Move the
elevator up and down several times to ensure that the linkage assembly does not bind. It should operate smoothly in both directions.
STEP 4: INSTALLING THE RUDDER PUSHROD ASSEMBLY
❑ Enlarge the hole in a servo arm that is 3/8" out from the center of the
servo arm, using a 5/64" diameter drill bit.
❑ Install the Z-Bend in the rudder pushrod wire into the hole that you
enlarged.
❑ Connect your radio system and plug the rudder servo into the receiver. Center the servo by double-checking that the rudder trim
lever on your transmitter is centered, then use a couple of pieces of masking tape, taped between the rudder and the stabilizer, to
hold the rudder centered.
❑ Slide the rudder pushrod into the fuselage and guide the threaded
end out through the pushrod exit slot.
❑ Install the servo horn onto the servo, making sure that the servo
horn is centered and points toward the fuselage side.
❑ Install the servo horn retaining screw to secure the servo horn to
the servo.
❑ Install one nylon control horn and backplate onto the left side of the
rudder, using two M2 x 25mm machine screws. When aligned properly,
the centerline of the control horn should be lined up with the rudder
pushrod wire and the clevis attachment holes should be lined up over
the hinge line.
✦
✦
✦
✦
✦IMPORTANT✦
✦
✦
✦
✦ Don't forget to apply thin C/A into the mounting
holes to make the mounting area stronger.
❑ Thread one nylon clevis onto the pushrod wire and snap the clevis
into the outermost hole in the control horn.
☞
Hold the pushrod wire with a pair of pliers to prevent it from turning
or twisting when installing the clevis.
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