Komatsu WA500-6H, Operation & Maintenance Manual

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3.7 Troubleshooting Operation
3-180
WA500-6H – VEAM430100
Precautions for charging battery
When charging the battery, if the battery is not handled correctly,
there is danger that the battery may explode. Always follow the
instructions in "Battery (3-167)" and the instruction manual
accompanying the charger, and do as follows.
z
Do not use or charge the battery if the battery electrolyte
level is below the LOWER LEVEL line. This may cause an
explosion. Always check the battery electrolyte level periodi-
cally and add distilled water to bring the electrolyte level to
the UPPER LEVEL line.
z
Set the voltage of the charger to match the voltage of the
battery to be charged. If the voltage is not selected correctly,
the charger may overheat and cause an explosion.
z
Connect the positive (+) charger clip of the charger to the
positive (+) terminal of the battery, then connect the negative
(-) charger clip of the charger to the negative (-) terminal of
the battery. Be sure to fix the clips securely.
z Set the charging current to 1/10 of the value of the rated bat-
tery capacity; when carrying out rapid charging, set it to less
than the rated battery capacity.
If the charger current is too high, the electrolyte will leak or
dry up, and this may cause the battery to catch fire and
explode.
z If the battery electrolyte is frozen, do not charge the battery
or start the engine with a different power source. There is a
hazard that this will ignite the battery electrolyte and cause
the battery to explode.
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