Owner's Manual DF300 Inspection And Maintenance[Corrosion Prevention]

Your authorized Suzuki Marine Dealer may also have additional recommendations due to regional climate or operating conditions. Please consult him for advice.

ANODES

The motor is protected from exterior corrosion by anodes. These anodes control electrolysis and help prevent corrosion. The anodes will corrode in place of the parts they are protecting. You should periodically inspect each of the anodes and replace them when 2/3 of the metal has corroded away.

In certain areas of the country, the water is unusually harsh on metal. Additional anti-corrosion measures may be helpful under those conditions. Consult your authorized Suzuki Marine Dealer for details.

If anodes are not properly maintained, underwater aluminum surfaces (such as the lower unit) will suffer galvanic corrosion damage.
• Periodically inspect anodes to make sure they have not become detached.
• Do not paint anodes, as this will render them ineffective.
• Periodically clean anodes with a wire brush to remove any coating which might decrease their protective ability

Bonding wires are used to electrically connect the engine components so they exist in a common ground circuit. This allows them to be protected against electrolysis by the anodes. These wires and their terminals should be checked periodically to be sure they have not been damaged.