01-22
MAINTENANCE OPERATIONS
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• If bleed hole C of vent plug B is clogged, clean the hole.
Inspection of fluid level
• Make sure that the battery electrolyte level is between UPPER and
LOWER.
• If the level is below LOWER, remove vent plug B and fill the battery
with distilled water or battery replenisher to UPPER.
Measurement of specific gravity
Measure the specific gravity of the battery electrolyte. If the measured
value is lower than the limit, charge the battery.
NOTE
The specific gravity of the battery electrolyte depends on the
liquid temperature. Use the following formula to convert the
actual value to the value were the temperature 20
°C {68°F}.
S
20
{68} = S
t
+ 0.0007 (t–20{68})
S
20
{68}: Specific gravity were the temperature 20°C {68°F}
S
t
: Specific gravity actually measured with the
temperature at t
°C {t°F}
t : Temperature of battery electrolyte
B
C
Visual inspection
• If terminal A is corroded, scrub off the corrosion from it using a wire
brush.
• If cracks or defects are found on the battery, replace it since the
cracks or defects can cause liquid spills.
CAUTION–
Make sure you grease the ê side of terminal A because it is easily
corroded.
B
A
A
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