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Hangar 9 P-51 Mustang 60 ARF Assembly Manual
Step 19
Insert the pushrod into the pushrod tube from the inside of
the fuselage. Attach the clevis to the servo arm.
Hint
: It may be necessary to use side cutters to trim
the length of the pushrod so it doesn’t interfere with
the engine. Make sure to leave the pushrod wire long
enough so a bend can be placed in the wire to attach it
to the carburetor arm.
Step 20
Use the radio system to move the throttle servo to the closed
position. Physically close the carburetor on the engine.
Make sure the direction of the servo and carburetor arm are
working in unison. Use a felt-tipped pen to mark the pushrod
where it crosses the outside hole of the carburetor arm.
Step 21
Use the radio system to move the throttle servo to the full
throttle position. Move the carburetor to the full throttle
position. Check that the mark on the pushrod wire aligns
with the outer hole of the carburetor arm. If it is off only a
slight amount, you can use the ATV function of your radio
to correct. If the line is too far forward, attach the clevis to
a hole on the servo arm that is closer to the center of the
servo. If it doesn’t move far enough, use a servo arm that
allows you to position the clevis farther from the center of
the servo. Repeat the previous steps if necessary to achieve
the correct amount of throw to operate the throttle on your
engine.
Step 22
Remove the pushrod and take the clevis off the wire. Use
Z-bend pliers to make a Z-bend in the pushrod wire where
the mark was made in the previous steps. You can use
regular pliers, but Z-bend pliers will provide the best results.