PRODUCT OVERVIEW
12 SD25 Operation Manual
The anode of the Sail-Drive is only
calculated for the Sail-Drive. Changing the
material of the propeller may require
additional anodes to be installed on the
Sail-Drive.
Failure to use the correct anode material
may result in inadequate protection and
excessive corrosion of underwater drive
system components. Use only aluminum
anodes in brackish and saltwater
applications. In freshwater applications,
use aluminum or magnesium anodes for
best results. Never use magnesium
anodes in brackish or salt water, as they
will deteriorate rapidly, which will lead to
severe damage to the drive system.
If sacrificial anodes erode quickly or if
signs of corrosion are evident, the owner
should take immediate corrective action.
Yanmar recommends consulting an
engineer specializing in marine electricity
and corrosion control to determine the best
way to correct the rapid erosion of the
anodes.
SHORE POWER
Vessels that are connected to shore power
require additional protection to prevent
destructive low voltage galvanic currents
from passing through the shore power
ground wire. Galvanic isolators are
available from the aftermarket (not
supplied by Yanmar) to block these
currents while still providing a path to
ground for dangerous shock currents.
If the AC shore power ground is not
isolated from the boat ground, sacrificial
anodes may be unable to neutralize the
increased galvanic potential. Corrosion
damage that results from the improper
system design or application is not
covered by the Yanmar Limited Warranty.
SD25_OPM.book 12 ページ ２０１４年６月２７日 金曜日 午後５時２９分
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