Evinrude 4906B 4HP 1969 Owner's Manual page 192

3- Using more electrical
generator or al ternator
ing in an undercharged condition.
4- A defect in the charging system.
faul ty generator or al ternator
defective regulator,
somewhere in the system, could cause the
battery to become undercharged.
5- Failure to maintain
good order. This might indude a low level
of electrolyte in the cells; loose or dirty
cable connections at the battery terminals;
or possibly an excessivel y dirty battery top.
Electrol yte Level
The most common practice of checking
the electrol yte level in a battery
remove the cell cap and visually observe the
level in the vent well.
vent well has a split vent which will cause
the surface of the electrolyte
distorted when it makes contact.
distortion first appears at the bottom of the
split vent, the electrolyte level is correct.
Some late-model batteries
trolyte-level indicator installed which oper-
ates in the following manner:
A transparent rod extends through the
center of one of the cell caps.
of
One the most effective
battery terminals is to use a wire brush designed for
this specific purpose,
power than the
can replace resul t-
A
system, a
or high resistance
the battery in
is to
The bottom of each
to appear
When the
have an elec-
The lower
means of cleaning the
BATTERY SERVICE
tip of the rod is immersed in the electrolyte
when the level is correct.
should drop below normal, the lower tip of
the rod is exposed and the upper end glows
as a warn ing to add water.
only necessary on one cell cap because if
the electrolyte is low in one cell it is also
low in the other cells. BE SURE to replace
the cap with the indicator onto the second
cell from the positive terminal.
During hot weather and periods of heavy
use, the electrolyte
more often than during normal operation.
Add colorless, odorless, drinking water to
bring the level of electrolyte
the proper level.
overfill, because
amount of water will cause loss of electro-
lyte and any loss will result in poor perform-
ance, short battery life, and will contribute
quickly to corrosion.
lyte from another battery.
pure water.
Cleaning
Dirt and corrosion
from the battery just as soon as it is dis-
covered. Any accumulation
dirt will permit current to flow between the
terminals. Such a current flow will drain
the battery over a period of time.
Clean the exterior of the battery with a
solution of diluted ammonia or a soda solu-
tion to neutralize any acid which may be
present. Flush the deaning
with dean water. TAKE CARE to prevent
any of the neutralizing
ing the cells, by keeping the caps tight.
A poor contact at the terminals will add
An inexpensive brush can be rnrchased
clean battery lead connectors
nection.
If the level
Such a device is
level should be checked
in each cell to
TAKE CARE not to
adding an excessive
NEVER add electro-
Use only dean
should be deaned
of acid film or
solution off
solution from enter-
used
and
ensure proper con-
to a
6-3
to