Pag.25 (Funct. and Maint.Manual n.03 – Fourth edition) OMI.EN-PCP001 R01
9.3.8 Joint type SN7
1. Remove the screw (23), the O’ring (27) and the pin (24).
2. Extract the propeller shaft (25) from the rotor (26) (or from the hollow shaft,
depending on the joint involved) by moving it in the direction of the black arrow.
This kind of joint has no spare parts available. In case of malfunctioning it shall be fully
replaced.
9.3.9 Joint type SN8
1. Remove the internal flat sleeve (28) by operating on the larger part, then move it in
the direction of the black arrow.
2. Remove the grub screw (29).
3. Move the metallic cover backwards (30) in the direction of the arrow. The bushing
and the pin (31) will then be visible.
4. Beat the pin with care, taking care not to damage the bell (32). Then, if necessary,
the pin and the bushes can be replaced.
5. Pull the sphere in the direction of the black arrow. Since it is integral with the
propeller shaft (33), they’ll both be free of the joint. Then the hexagonal-head
screws holding the bell to the rotor (or hollow shaft depending on the joint involved)
will be visible
6. Unscrew the screws (34). The bell will be completely free of the rotor (or hollow
shaft, as mentioned above).
SN8
IMPORTANT: Bushes increase the life of the system but are integral with the pin,
hence when the pin is replaced, they shall always be replaced as well.
To re-assemble the internal flat sleeve (28), it is advisable to grease the sphere and use
two tools simultaneously (e.g. two large screwdrivers).
SN7
