Troubleshooting - Carson Marines HM-38 Instruction Manual

p. Troubleshooting
GB
Please read this before something happens.
Problem
The model does not
move
Motor does not turn
The model reacts
incorrectly to the control
commands or flies
choppily
The model does not take
off
The rotors do not allow
shut down
The model moves
forwards/backward and
sidewise, but does not
hover
The model vibrates
severely
The tail does not permit
stabilizing
24 CARSON Helikopter MARINES HM-38 50 050 7025
Cause
1. Check whether the transmitter and the receiver are
switched on
2. Check the battery voltage of transmitter and
receiver
3. The trim slider of the pitch-function stands on the
upper stop
1. Motor is defective
2. Connection of controller and motor is loose
Check the state of the transmitter and receiver battery
charges
1. Rotor blades are twisted
2. Motor is too hot
3. Batteries are empty
1. Trim is not correctly adjusted
Check whether the helicopter is exposed to a draught,
e.g. by an opened window or an air conditioner. Hover
flight is not possible when there is a draught.
1. Check whether the principal rotors run true
2. Check whether the model is correctly balanced
1. One or more rotor blades are defective
2. Lower and upper rotor revolution run with different
friction on the rotor shaft
3. The velocity of rotation of the upper and lower rotor
revolution is uneven;
Reparation
Switch transmitter and/or receiver on
Employ completely charged batteries
Ensure that the trim slider of the pitch
function is in neutral position or somewhat
below.
Exchange the motor
Connect the connector
Employ completely charged batteries
Exchange the rotor blades
Allow the motor to cool down
Charge the batteries or exchange them
Correct the trim on the pitch controller
Close the window / door, switch off the air
conditioner or select a more suitable room
Possibly balance the rotor blades
Possibly balance the rotor blades
Replace one or both rotor blades
Ensure that both rotor revolutions allow for
easy rotation
Correct the trim on the transmitter