TM 5-4320-300-14
The specific gravity of a fully charged battery must be 1.
250 minimum at 80°F (26. 6°C). Measure the
temperature of the battery electrolyte with an accurate
thermometer. Compare the electrolyte temperature and
the hydrometer specific gravity reading to the battery
condition chart. Add or subtract (from your specific
gravity reading) the decimal next to the temperature in °F
that
closely
approximates
the
obtained
electrolyte
temperature. If the temperature corrected reading is
below 1. 250, charge the battery. Coat battery terminals
and posts with a thin covering of MIL-G-10924 grease.
Replace cover and wing nuts and tighten.
e.
Drain pump after use to prevent water in pump
from freezing. Remove pump body drain plug. Remove
all fluid from pump body and replace drain plug.
f.
Cover unit when not in use.
g.
Shelter unit from weather, if possible.
2-7.
OPERATION IN EXTREME HEAT
a.
Cooling. Keep engine and radiator clean to provide proper engine cooling. Keep centrifugal pump unit in open
area to allow air to circulate around the radiator and engine.
b.
Battery. Increase battery PMCS. Use distilled water or a good grade drinking water (excluding I mineral water)
to bring electrolyte to proper levels.
Change 1 2-61
