TROUBLESHOOTING
Problem: The propellers do not move.
Cause:
• The ON/OFF switch is in the "OFF" position.
• The battery is too weak or depleted.
Remedy:
• Set the ON/OFF switch to the "ON" position.
• Charge the battery.
Problem: The model stops and descends during flight for no apparent reason.
Cause:
• The battery is too weak.
Remedy:
• Charge the battery.
Problem: The model cannot be controlled with the remote control.
Cause:
• The ON/OFF switch is in the "OFF" position.
• The batteries were not inserted correctly.
• The batteries do not have enough power.
Remedy:
• Set the ON/OFF switch to the "ON" position.
• Check whether the batteries are inserted correctly.
• Insert new batteries.
Problem: The model only turns on its vertical axis or rolls over when started or
does not lift off.
Cause:
• Incorrect arrangement of propellers.
Remedy:
• Install the propellers as outlined in the manual.
Additional tips and tricks can be found online at
www.revell-control.de
.
4 TRIM ADJUSTMENT OF THE CONTROL
The correct trim is a basic requirement for fault-free flying behaviour of the model. Its adjustment is
simple, but it requires some patience and a feel for it. Please observe the following instructions
precisely: Carefully move the thrust control up and raise the model approximately 0.5 to 1 metre in
altitude.
4A If the model automatically moves slowly or quickly to the left or right ...
Gradually press the trim button in the opposite direction.
5 CHANGING THE PROPELLERS
If the rotor blades of the model are damaged and must be replaced, proceed as follows:
• Before fitting the propellers, make sure they are not mixed up. The model has 4 different
propellers, which differ in colour and markings on the bottom:
• Front right: marking A
• Front left: marking B
• Rear right: marking B
• Rear left: marking A
• Carefully pull the defective propeller off the shaft.
• Carefully fit the new propeller onto the shaft again.
