Section 5 - Maintenance
Page 78 90-899883179 OCTOBER 2007
!
WARNING
Recharging a weak battery in the boat, or using jumper cables and a booster battery to
start the engine, can cause serious injury or product damage from fire or explosion.
Remove the battery from the boat and recharge in a ventilated area away from sparks or
flames.
!
WARNING
An operating or charging battery produces gas that can ignite and explode, spraying out
sulfuric acid, which can cause severe burns. Ventilate the area around the battery and
wear protective equipment when handling or servicing batteries.
Corrosion Protection
NOTICE
Washing the MerCathode assembly can damage components and lead to rapid
corrosion. Do not use any cleaning equipment such as brushes or high‑pressure washers
to clean the MerCathode assembly.
a - MerCathode reference electrode
b - Do not paint
c - Do not pressure wash
Whenever two or more dissimilar metals (like those found on the sterndrive) are submerged
in a conductive solution, such as saltwater, polluted water or water with a high mineral
content, a chemical reaction takes place causing electrical current to flow between metals.
The electrical current flow causes the metal that is most chemically active, or anodic, to
erode. This is known as galvanic corrosion and, if not controlled, it will in time cause the
need for replacement of power package components exposed to water. Refer to the Marine
Corrosion Protection Guide (90‑88181301).
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