Top Flite TOPA0712 - Manual (Page 23)

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choosing the servo arm, use the shortest arm available.
Drill out the hole closest to 3/8" [10 mm] from the center
of the servo with a 5/64" [ 8 mm ] bit.
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27. A hole needs to be drilled in the fi rewall for the
pushrod from the servo you just mounted. Look at the
location of the servo. Determine where the pushrod will
come through the fi rewall and mark the location on the
fi rewall. When you are satisfi ed with the location for the
hole, drill a 9/64" [ 3 mm ] hole on the mark.
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28. Locate the plywood parts for the ignition switch.
Glue it together as shown.
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29. From the remainder of the 24" [610mm] plastic
inner plastic tube cut a 5" [127mm] length. Screw a 2-56
x 4" [102mm] pushrod wire into one end of the tube.
Bend it as shown and cut off the excess wire.
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30. Install the pushrod through the fi rewall. Install
the metal pushrod into the hole you drilled in the servo
arm. Secure it with a nylon clevis keeper.
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31. Rotate the servo arm back to a position that
would be where the servo arm would rest when the
servo is pulling back.
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32. Cut the plastic tube a ¼" [6mm] in front of the
fi rewall. Thread another 2-56 x 4" [102mm] pushrod
wire into the tube.
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33. Install a large battery switch harness into the
plywood switch mount. Place the switch and mount
against the fi rewall, aligning the hole in the switch with
the pushrod wire. Use a pencil and make a mark on
the fi rewall for one of the mounting holes.
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34. Remove the switch from the switch mount. Place
the switch mount on the mark you made. Drill a 1/16"
[1.6mm] hole through each of the mounting holes in the
switch mount. Mount the switch to the fi rewall by gluing
it in place and securing it to the fi rewall with two #2 x
3/8" [10mm] screws and #2 fl at washer.