Komatsu PC138US-11 Operation & Maintenance Manual page 309

OPERATION
PRECAUTIONS FOR CHARGING BATTERY
k
When charging the battery, if the battery is not handled
correctly, there is a danger that the battery may explode.
Follow the instruction manual accompanying the battery
charger, and observe the following.
• Set the voltage of the charger to match the voltage of
the battery to be charged. If the correct voltage is not
selected, the charger may overheat and cause an ex-
plosion.
• 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 nega-
tive (-) terminal of the battery. Be sure to attach the
clips securely.
• Set the charging current to 1/10 of the value of the rat-
ed battery capacity; when performing rapid charging,
set it to less than the rated battery capacity.
If the charger current is too high, the electrolyte will
leak or the battery cells will dry up, and this may cause
the battery to catch fire and explode.
• If the battery electrolyte is frozen, do not charge the
battery or start the engine with a different power
source. It is dangerous that this may ignite the battery
electrolyte and cause the battery to explode.
• Do not use or charge the battery if the battery electro-
lyte level is below LOWER LEVEL line. This may cause
an explosion. Check the battery electrolyte level peri-
odically and add distilled water to bring the electrolyte
level to UPPER LEVEL line.
WARNING
WENAM00111
TROUBLES AND ACTIONS
9,&01735
3-239