8 - PROPULSION SYSTEM277
8.14.2 Periodical checks of propellers
DANGER
To clean and check the yacht in water: disable the engines and genera-
tors start.
It is advisable to carry out this operation by yacht in dry shore because main-
tenance is in this way eased. Check if the propeller paddles show notches
or breaks, scales or barnacles, which may have a negative inuence on the
yacht output during navigation. If you notice corrosion, check the anodes
conditions and replace the propellers for major failures.
Propellers assembly/disassembly
The propellers (starboard and port) are not interchangeable between them;
they are bronze meltings according to specic features of your yacht.
The extreme end of the shaft (9) is conical and a little key allows the coupling
with the propeller (5) which must be inserted up to the shaft catch and leav-
ing the propeller stretching out from the shaft plane of 2÷3 mm.
CAUTION
Do not replace the propellers of your yacht with other of doubtful origin.
Contact the RIVA Service Department.
Each yacht model has its own propeller.
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