Adjusting the pitch
Loosen the bolts (7) about four
turns with a allen wrench.
Lift the ring (4) so as to release
the locking teeth about 2 mm
between the ring and the rear
hub section (3).
Set the required pitch on the graduated
scale (10). This is easiest to do if the
propeller is positioned with the ring in the
upward position. Then grasp two opposing
blades and turn these until the desired pitch
has been achieved. The central position
represents the pitch stamped on the foot of
the blade. The pitch increases by one
degree per division on the plus side and
reduces by one degree per division of the
Press down on the ring so that
the locking teeth inside mesh
Retighten the bolts crosswise. Tighten
firmly but without excessive force.
Never use an extension on the wrench.
Slack bolts can lead to the pitch
changing, causing vibrations wich may
result in damage to the propeller blades.
Rec. Torque for the S4 and S6
propellers are 5 Nm (3.7 Lbft) and for
the S8 and S9 8 Nm (5.9 Lbft).