CHASSIS ELECTRICAL ± Battery
54A-5
BATTERY
SERVICE SPECIFICATION
Item Specification
Specific gravity of the battery fluid 1.220 ± 1.290 [20_C]
ON-VEHICLE SERVICE
FLUID LEVEL AND SPECIFIC GRAVITY CHECK
1. Inspect whether or not the battery fluid is between the
UPPER LEVEL and LOWER LEVEL marks.
Caution
(1) If the battery fluid is below the LOWER LEVEL,
the battery could explode in using.
(2) If the battery fluid is over the UPPER LEVEL,
leakage could result.
2. Use a hydrometer and thermometer to check the specific
gravity of the battery fluid.
Standard value: 1.220 ± 1.290 [20_C]
The specific gravity of the battery fluid varies with the
temperature, so use the following formula to calculate
the specific gravity for 20_C. Use the calculated value
to determine whether or not the specific gravity is
satisfactory.
D20 = (t ± 20) 0.0007 + Dt
D20: Specific gravity of the battery fluid calculated
for 20_C.
Dt: Actually measured specific gravity
t: Actually measured temperature
Thermometer
Hydrometer
Good
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