User's Manual

8
than 50cm or high current draw servos are being used ,use heavy servo extensions.
• Receiver Vibration and Waterproofing: the receiver contains precision electronic part.Be sure to avoid
vibration,shock,and temperature extremes.For protection, wrap the receiver in foam rubber or other
vibration-absorbing materials. It is also a good idea to waterproof the receiver by placing it in a plastic bag
and securing the open end of the bag with a rubber band before wrapping it with foam rubber. If you
accidentally get moisture or fuel inside the receiver,you may experience intermittent operation or a crash. If
in doubt, please contact Radiolink aftersales or distributors for service.
• Always mount the servos with t he supplied rubber grommets.Don’t over tighten the screws.No part of the
servo casing should contact the mounting rails,servo tray or any part of structure.Otherwise vibration will be
transmitted to the servo causing damage of servo.Note the small numbers (1,2,3,4) molded into each arm on
the servo arms.The number i ndicate how many degrees each arm is ‘off’ from 90 degrees to correct for
minute manufacturing deviations from servo to servo.
• To center the servos, connect them to receiver and turn on the transmitter and receiver.Center the trims
on the transmitter,then find the arm that will be perpendicular to the pushrod when placed on the servo.
• After the servos are intalled,operate each servo over its full travel and check that the pushords 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 mouting 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 intall the switch harness to the helicopter,please use the switch cover.Gener ally 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 suitablr points.In addition,periodically
check the wire during daily maintenance.