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INSTALLATION & OPERATION MANUAL
U125 Series Engines
CHAPTER 11
ANTI CORROSION SYSTEM
Heat exchanger
Sacrificial anodes
A sacrificial anode must be replaced when more than 60% of it has been used. Check
especially frequently when used in saltwater. It is recommended to replace the sacrificial
anodes at the start of each season.
CAUTION
!
•DON’T OPERATE ENGINE WITHOUT ANODES. IT IS HARMFUL TO
YOUR ENGINE.
•CLOSE THE SEAWATER VALVE BEFORE THIS MAINTENANCE.
• MAKE SURE TO CHECK THE ANODE PLUG IN ACCORDANCE WITH
THIS MANUAL: DON’T LOOSEN COOLANT DRAIN PLUG.
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