TOHATSU MFS 4 Service Manual page 165

Turn propeller nut q to tightening direction to align one of
7.
grooves to propeller shaft hole, and attach split pin w.
If propeller nut groove cannot be aligned with split
pin hole, loosen nut and repeat steps 6 and 7.
8. Check gear oil level. "Refer to Chapter 3."
Perform "Inspection of Lower Unit (Air Leakage)"
in Chapter 3 if necessary.
4st 4/5/6 2011
q
6
6-27