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GENERATOR
DIVISION
HOBART
BROTHERS
COMPANY
OPERATION,
MAl.NlENANCE~,
AND
OVERHAUL
MANUAL,
TM-240A
SELF-PROPELLED
GENERATOR
SET,
SPEC.
NO.
5381A
D.
Liquid
Level
The electrolyte
in each cell should be above the plates at all times to prevent
battery
failure.
Check the level of the electrolyte
regularly
and add clean
distilled
water when required.
Never
use hydrant
water or any water which
has been in a metal container.
Acid or electrolyte
should never be added except
by a ski I led batteryman .
CAUTION:
NEVER
ADD
ANY
SPECIAL
BATTERY
"DOPES",
SOLUTIONS,
OR POWDERS
.
NOTE:
It is especially
important
to keep the battery
at full
charge for cold
weather
operation.
Add distilled
water to the battery
in freezing
temperatures
only when the engine
is to operate for several
hours to
thoroughly
mix the water and the electrolyte,
or damage to the battery
may result
from freezing.
E.
Testing
the Battery
(1)
General
Tests are made on a battery
to determine
the state of charge and also the con-
dition.
The results
of these tests show that the battery is good,
needs recharg-
ing, ar must be replaced.
If a battery
has failed,
is low in charge,
or requires
water frequently,
the
reason for the condition
must be found and corrected.
Visually
inspect the battery
before testing,
to determine
if it has been damaged.
The presence of moisture
on the outside
of the case,
or low fluid
level
in one
or more cells
indicate
possible
battery
damage (cracked case, etc.).
The battery
may be tested by two methods.
A Battery-Starter
Tester
may be
used to determine
the battery's
ability
to deliver
current.
A battery
hydrometer
test determines
the charge condition
of the battery.
(2)
Test
with Battery-Starter
Tester
Connect
the battery
to the tester according
to instructions
furnished
with
the instrument.
Test the battery
in accordance
with tester
instructions.
If
the test determines
that the battery
has acceptable
voltage,
it indicates
that
the battery
has good output capacity
and will
accept a charge,
if required.
.
2-2
Page 27
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