MerCruiser 3.0 TKS, User Manual

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Section 5 - Maintenance
Page 74 90-8M0053372
eng
NOVEMBER 2010
Battery
Refer to specific instructions and warnings accompanying your battery. If this information is not available, observe the following
precautions when handling a battery.
!
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).
6211
c
b
a