Mercury Alpha

GASOLINE STERNDRIVE INSTALLATION MANUAL
90-860172011 Page 103 of 137
1. To aid in future removal of the propeller, liberally coat propeller shaft splines with one
of the following lubricants:
Description Where Used Part Number
2-4-C Marine Lubricant With
Teflon
Propeller Shaft Splines
92-825407A3
Special Lubricant 101
Propeller Shaft Splines
92-13872A1
IMPORTANT: Installation is correct when at least 2 threads of propeller shaft are
exposed through propeller nut after torquing it.
ALPHA MODELS
1. Install propeller with attaching hardware as shown. Torque the nut, then continue
to tighten until 3 tabs on the tab washer align with grooves on spline washer. Bend
the 3 tabs down into grooves.
76910
a
c
e
f
g
d
b
a-Propeller Shaft Splines
b-Forward Thrust Hub
c-Flo-Torque II Drive Hub
d-Propeller
e-Drive Sleeve Adapter
f-Locking Tab Washer
g-Propeller Nut
Description
Nm lb-in. lb-ft
75 55
Propeller Nut
Then align tabs with
grooves.