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• After the servos are installed, operate each servo over its full travel and check that the
pushrods and servo arms don’t bind or contact each other. Also make sure the controls do not
require excess force to operate. If there is an objectionable buzzing sound coming from a servo,
there is probably too much resistance in the control. Find and correct the problem. Even is there is
no servo damage, excess battery drain will result.
• Use the mounting plate from the receiver on/off switch as a template for the cutout and screw
holes, mount the switch on the side of the fuselage opposite the engine exhaust, and where it won’t
be inadvertently turned on or off during handling or storage. Be certain the switch moves without
restriction and ‘snaps’ from ON to OFF, and that the cutout allows full motion of the switch in both
directions.
• When install the switch harness to the helicopter please use the switch cover. Generally
sandwich the frame between the switch and switch cover and securely tighten the screws, Different
models might require different installations. If so, please follow the model’s instruction manual
.
• To prevent the servo lead wires from being broken by vibration during flight, provide a slight
amount of slack or extra so that the wire sticks out slightly and fasten it at suitable points. In addition,
periodically check the wire during daily maintenance.
1.2.2 Receiver and servo connections
（1）Airplane servo connection
Receiver output
and channel
ailerons/aileron-1¹/combined
flap-2&aileron-1¹
spare/landing gear/aileron-2¹
³/combined flap-1 and aileron-2² ³
spare/flaps/combined flap-1 and
aileron-2²
spare/elevator-24/mixture control
（
2
）
Glider/Sailplane servo connection
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