iKarus FUN Piccolo Notice De Montage page 24

Landing gear assembly
Push the main rotor shaft into the main gear. Rotate the
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gear so that the hole in the main shaft lines up with the
hole in the gear. Identify the steel main gear retaining pin
(length 8mm, the shortest of the metal rods) and press
the pin through the hole in the gear and through the main
shaft. Press the two main plastic bushings into the housings in
the main frame, then slide the main shaft through the bearings
and retain the shaft by sliding the washer and one of the
rubber mount grommet down over the top of the main shaft
and pushing it securely into position against the upper main
plastic bushings. The main shaft and gear assembly should
freely rotate in the plastic bushings
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Two types (main drive motor, tail drive motor) of small plastic
pinion gear are included in the kit. Press the nine-tooth
standard pinion onto the drive motor so that the end of the
pinion and the motor shaft are flush. N.B. Option pinion gears
(8 and 10 tooth) are supplied in the kit.
with no float up or down.
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Fit the motor using two M 2,6x5 mm bolts and washers. Adjust
the motor position so that the gears do not engage tightly, but
have a little play or backlash. The proper mesh between the
motor pinion and the main gear is achieved by placing a small
strip of paper (standard 80gsm photocopier paper) between
the gears. Next, move the motor up against the main gear.
Tighten the motor retaining bolts. Then remove the paper.
Check that there is a small amount of backlash present and
that as you rotate the main gear; no tight spots exist.
Take time to get the correct gear mesh because the
smoothness of running, flight duration and service life of
the motor depend on this! N.B Do not over-tighten the
motor screws. They should be just tight enough not to
come loose. The screws should be checked after flying to
ensure that they have not loosened.
Before you start to build in the main rotor motor you should
break-in the motor. This also increases the durability and
effeciency. As long as the motor is not broken-in, it could
eventually produce radio interferences due to heavy
collector lightning. On other receivers than the Ikarus one
this could result in slight pulses on the servos.
Breaking-in the motor
Switch on your tx. Set the throttle stick to power-off
position. Plug the main rotor motor and a full charged
battery into the Piccoboard. After waiting for the LED to
activate, set the throttle stick to about 1/4 of full power
position. Now let the motor spin until the battery is
discharged. Repeat the whole procedure 2 or 3 times.
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