User manual

41
Problem Cause Reparation
The model does not
move
Transmitter or chassis power
switch is not ”ON“
Switch power on receiver or
transmitter
Polarity or battery type is
wrong
Check polarity and type of
battery
By sunlight or intensive light Use the helicopter without
sunlight
Motor does not work Motor is defect Exchange the motor
Motor is too hot Allow the motor to cool
down
The model reacts
wrongly on the
commands or flies
uneasy
Check the charging status of
the batteries from transmit-
ter and receiver
Insert fully charged
batteries
The model does not
take off
Rotor blades are twisted Exchange the rotor blades
Motor is too hot Allow the motor to cool
down
Batteries are empty Charge the batteries or
exchange them
The model vibrates
severely
Check that the rotors are
rotating properly
Possibly change the rotor
blades
Check whether the model is
correctly balanced
Possibly change the rotor
blades
The tail does not
permit stabilizing
One or more rotor blades
are defective
Replace one or both rotor
blades
Lower or upper rotor disc
runs with varying friction on
the main shaft
Make sure that both rotor
discs can rotate easily
The velocity of rotation of
the upper and lower rotor
revolution is uneven
Correct the trim on the
transmitter