10 – Maintenance
ELIOS 2 USER MANUAL
Page 97 of 106
Changing a Propeller
REQUIRED TOOLS:
-
8mm 1.4Nm torque-controlled screwdriver
-
New propeller
A DAMAGED OR INCORRECTLY INSTALLED PROPELLER MAY SERIOUSLY DAMAGE
THE AIRCRAFT.
IT IS RECOMMENDED TO CHANGE THE PROPELLERS EVERY 10 FLIGHT HOURS
Propellers should be changed when they are damaged or after 10h of flight. Damage is typically caused by
large items entering the cage, but dust and small particles will also abrade the propellers in the long term.
1-
Unscrew the nut with the screwdriver provided in the tool kit, turn counterclockwise to loosen.
2-
Replace the propeller. Be careful, the aircraft has two kinds of propellers. Propeller 5045R shall be
placed on the front right and bottom left motors, propeller 5045 on the front left and bottom right
motors. The propellers’ labels must be facing up when Elios is in an upright orientation. Do not use
pliers or other tools to hold the rotor. It might bend the motor shaft. Gloves should be used instead.
3-
Screw on and tighten a new motor nut. Elios is shipped with a Dynamometric screwdriver which is
pre-set to the correct torque of 1.4Nm. Using this tool eliminates the risk of overtightening the motor
nuts and damaging the threaded motor shafts.
Note: If correctly tightened the propeller should not have any play on the motor shaft, nor should it be possible
to rotate the propeller with regard to the motor shaft. An insufficiently tightened nut can cause a crash and
might result in severe damage to the robot and injure people or infrastructure.
Figure 10.1: Propeller marking