Torqeedo Hobie eVolve Owner's Manual page 23

Propeller Replacement
1. Disconnect the cable between the motor and battery.
2. Loosen and unscrew the central nut on the propeller.
3. Pull the propeller from the motor shaft.
4. Pull cylinder pin from the motor shaft and remove the disk spring from
the motor shaft.
5. Connect the cable between the motor and battery. Allow the motor
to run slowly and check whether the shaft is turning unevenly at the
shaft sealing ring. Contact Torqeedo Service if the shaft is damaged or
uneven.
6. Once again, disconnect the cable between the motor and battery.
Place a disk spring onto the motor shaft. Note the direction of the disk
spring: The inside rim of the disk spring must be in contact with the motor
housing. Insert the new cylinder pin centrally to the motor shaft.
7. Place the propeller onto the motor shaft and turn the propeller so that
the cylinder pin is aligned with the groove in the propeller.
8. Place a disk spring onto the motor shaft behind the propeller. Note the
direction of the disk spring: The outside rim of the disk spring needs to be
in contact with the propeller.
9. Tighten the central nut on the propeller using a 10mm socket wrench.
TIGHTEN THE NUT UNTIL IT IS SNUG!
Disk Spring
Self Locking
M6 Nut
Pin
Disk Spring
23