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7)
TROUBLESHOOTING
Nature of trouble
Deformation
Deformation of container,
lid or one touch cap
Breakage
Electrolyte leakage acco-
rding to breakage of cont-
ainer, lid or one touch cap
Termination of connector
or pole post etc.
Sulfate
Specific gravity drops and
capacity is decreased.
Charge voltage rises rapi-
dly with immature gassing
in earlier stage but specific
gravity does not rise and
charge can't be carried
out.
Decrease and
May be easily detected by
falling of specific
measurement of the spec-
gravity
ific gravity.
Rise of specific
May be easily detected by
gravity
measurement of the spec-
ific gravity.
Mixing of impurities
Decrease of capacity.
Drop of charge and disch-
arge voltage.
Odor of generated gas and
coloring of the electrolyte.
S
S
ymptoms
Excessive temperature ris-
ing or external impact
External impact, improper
handling, excessive vibrat-
ion
Excessive temperature
rising or vibration/external
impact
When left in state of disch-
arge or left long without
equalizing charge.
Insufficient charge.
When electrolyte is so de-
creased that plate is de-
posed.
When concentration of
electrolyte rises.
When impurities are mixed
in electrolyte.
Rise of temperature due to
such trouble.
When left long period with-
out refilling of water.
Short circuit.
Diluted sulfuric acid is
used in refilling.
When the electrolyte level
excessively drops.
Metals such as iron, copper,
nickel and manganese.
Impurities such as sea
water, chloric acid, nitric
acid etc.
Filling of impure water.
7-11
Causes
Replace
Replace or install a new
one
Replace
Need equalizing charge
Need equalizing charge
Need equalizing charge
Adjust specific gravity
Replace electrolyte
Replace
Refill water in regular per-
iod
Replace
Adjust specific gravity after
full charge.
Refill distilled water.
Under a fully discharged
condition, pour out the
electrolyte. Then pour in
an acid of the specific
gravity higher by 0.03~0.05
than that of the drained
acid. Charge fully and
adjust the specific gravity to
the specified value.
Repair
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