UDI R/C U31W Navigator Operation Manual page 23

2. When assembling, place and align the propellers to the hole located on the motor shaft
and press down onto the propeller to fully install it( picture 22). Installed propellers
should be in contact with the surface of the motor housing( picture 23).(Please make
sure that the correct propellers are installed according to their rotating directions)
Motor replacement diagrams
1. When disassembling as per pictures 19/20/21 above: Remove the propeller,
unwind and remove the screw of motor holder( picture 25), pull out the motor holder,
unplug the motor connector and remove the motor.
2. When re-assembling , plug the required motor connector into the motor socket
( Picture 24),and place the motor within the protective holders as displayed (Picture 25)
and tighten the screw ( Picture 26). Finally, reinstall the propeller as aforementioned.
Picture 24
Notice: The motor's rotating direction should be the same, if not, it will not work.
Battery installation diagram
For battery installation/change, you need to squeeze the bottom of the battery buckle and
then pull out the battery( picture 27). Place the new battery inside the slot until is
fixed tightly within.
Notice: When installing, please ensure that the LiPo battery sticker is on the upper side indicating that
that battery is being installed correctly.
Picture 27
Picture 22
Picture 25
Picture 23
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Picture 26