Nanni T4.205 Operator's Manual page 59

Marine engine
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necessary to check and/or change
the anode more frequently.
To remove the anode:
I WARNING
Carry out these operations when
the engine is stopped and cold.
1. Remove the key from the panel.
2. Close the sea cock.
3. Drain the raw water system.
4. Remove the set formed by a
cap, a seal and the anode.
5. Remove the deposits from the
surface of the anode using glass
paper before determining the
level of erosion. Do not use a soft
steel brush as this could leave
deposits that are likely to speed
up corrosion.
6. If more than 50% of the anode
has been used up, change it
along with the seal.
The length of a new anode is 16
mm.
56
I CAUTION
Screw the anode cap back on
tightly and do not forget to re-
open the sea cock.
Mercathode system
STERN DRIVE VERSION ONLY
The Mercathode system protects
the stern drive against corrosion.
The Mercathode system is made
of a controller located near or
mounted on the engine, and one or
several anodes located on the drive
and on the transom of the boat.
ATTENTION
The Mercathode must stay
powered up even if the battery
switch is turned off.
Regularly check the anodes.
Change the anodes if eroded 50%
or more.
Do not wash the anodes with a high
pressure washer or with a brush.

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