Hangar 9 Extra 300 X 120cc Manuel D'utilisation page 19

3. Drill the four servo mount holes using a drill and 5/64-
inch (2mm) drill bit.
4. Prepare the holes for the servo mounting screws by
threading a screw into each hole, then removing the
screw. Place 2 to 3 drops of thin CA in each hole and
allow the CA to fully cure. Mount the servo in the fuselage
using the screws included with the servo. Connect the
servo to the receiver using a 24-inch (600mm) servo
extension.
5. Attach the ball end to the carburetor throttle lever using a
4-40 x 5/8-inch socket head cap screw, conical washer
and 4-40 lock nut. Drill the hole in the carburetor throttle
arm if necessary using a 7/64-inch drill bit.
6. Turn on the radio system. Center the throttle stick and
trim at the transmitter. Place the servo arm on the throttle
servo perpendicular to the servo centerline.
7. Use the manual included with the engine for the ball link
position at the servo. Move the servo to low throttle and
install the linkage. Adjust the linkage so the carburetor is
closed. Check the operation of the carburetor using the
radio system and make any adjustments necessary to
achieve full throttle.
Extra 300 X 120cc
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8. When the linkage is installed, it will run parallel to the
bottom of the engine box.
9. Cut two additional 1 1 / -inch slots 1 1 / inches behind the
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slots in the top of the engine box. Use a hobby knife
equipped with a #11 blade to cut the slots.
10. Secure the ignition battery to the top of the engine
box using a hook and loop strap. Place foam between
the battery and plywood to protect the battery from
vibrations. Route the leads from the battery through the
hole in the top of the engine box.
11. Remove the covering from the fuselage side using a
hobby knife equipped with a #11 blade. Mount the
ignition switch using the hardware included with the
switch. Secure the lead from the battery to the switch.
12. Secure the ignition module inside the engine box using a
hook and loop strap. Place foam between the module and
plywood to protect the module from vibrations.
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