UBSAN H216A X4 STAR PRO User Manual page 8

Notice:
Mind the differing colors
of the A and B propeller
screws!
Installation: Before installing propellers for the first time, please check that each Propeller A is matched
with motor A and each Propeller B is matched with motor B. Align the "I" with the flat side of the "D"
shaped motor shaft. Then use the provided screws and screwdriver to secure each propeller. Propeller
A's are paired with black propeller screws and are tightened counterclockwise. Propeller B's are paired
with silver propeller screws and are tightened clockwise. (as shown below)
Figure 1
If propellers need changing, please use a screwdriver to loosen the screw clockwise on Propeller A.
To remove the screw on Propeller B, loosen its screw counterclockwise.
Propeller B
Propeller A
Propeller B
" "symbol
"D" shaft
Propeller A
Propeller B
07
Propeller A
Counterclockwise
Clockwise
Clockwise
Counterclockwise