Hitachi ZAXIS 450LC-3 Operator's Manual page 363

If acid is swallowed:
1. Drink large amounts of water or milk.
2. Then drink milk of magnesia, beaten eggs, or
vegetable oil.
3. Get medical attention immediately.
IMPORTANT: Add water to batteries in freezing weather
before you begin operating your machine
for the day, or else charge the batteries.
IMPORTANT: If the battery is used with the electrolyte
level lower than the specified lower level,
the battery may deteriorate quickly.
IMPORTANT: Do not refill electrolyte more than the
specified upper level. Electrolyte may spill,
damaging the painted surfaces and/or
corroding other machine parts.
f
NOTE: In case electrolyte is refilled more than the specified
upper level line or beyond the bottom end of the
sleeve, remove the excess electrolyte until the
electrolyte level is down to the bottom end of the
sleeve using a pipette. After neutralizing the removed
electrolyte with sodium bicarbonate, flush it with
plenty of water, otherwise, consult the battery
manufacturer.
MAINTENANCE
7-93