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Zinc anodes, checking /
replacing
NOTE! Close the sea cock and drain the water from
the seawater system.
4
Replace the anode if more than 50% of it has been
consumed. Otherwise clean the anode with an emery
cloth to remove the oxide layer.
NOTE! Do not use a wire brush or other steel tools
when cleaning, as these may damage the galvanic
protection.
5
Reinstall the zinc anodes.
Ensure that there is good metallic contact between
the anode and the material.
6
Close the drain cock.
Open the sea cock before starting the engine.
Check for leaks.
Repair Instructions
1
Open the drain cock on the reverse gear’s oil cooler.
2
Unscrew the zinc anode on the reverse gear oil cooler.
3
Unscrew the zinc anode in the heat exchanger’s front
end cover.
Unscrew the zinc anode in the charge air cooler (CAC)
rear end cover.
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