ELECTRIC SYSTEM
3-73
CHECKING SPECIFIC GRAVITY OF BAT-
TERY FLUID
You can determine the battery’s state of charge by
checking the specific gravity of its fluid.
Use a hydrometer to measure the specific gravity of
the battery fluid. If the specific gravity is lower than
1.220 (battery fluid temperature at 20°C), the bat-
tery must be recharged.
If the battery fluid temperature is higher or lower
than 20°C, you may convert a specific gravity mea-
surement into its 20°C temperature equivalent by
using the following formula:
S
20 = St + 0.0007 (t – 20)
S
20: specific gravity at fluid temperature of 20°C
St: specific gravity measurement
t: battery fluid temperature
CONNECTED CONDITION OF TERMINALS
Make sure the battery cables are securely
attached to the battery terminals.
CLEANING THE TERMINALS
Clean the battery terminals if they become dirty or
corroded.
Use warm water to remove any white powder
caused by corrosion.
If a terminal is seriously corroded, remove the bat-
tery cable and clean the terminal with a wire brush
or sandpaper.
After cleaning, apply a thin coat of grease to the ter-
minals.
DANGER
BATTERY FLUID IS DILUTE SULFURIC ACID
AND CAN HARM MOST THINGS IT TOUCHES,
INCLUDING HUMAN SKIN AND CLOTHING. IF
YOU GET IT ON YOUR SKIN OR CLOTHING,
FLUSH IT OFF WITH SOAP AND WATER.
Z22627
Z09334
FUSO ASCENT-ALEJANDRO CANTO
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