TM 9-4910-663-12
Section III.
Not Applicable.
Section IV.
2-13.
a. General. Other than as specified below, operation under ex-
treme cold weather conditions will be the same as under usual condi-
tions. If possible, house the test stand (van mounted) inside a
heated enclosure when not in use to assure easy starting and to mini-
WARNING
Do not attempt to charge frozen batteries.
b. Batteries. Check the batteries for freezing, which will pre-
vent them from furnishing sufficient current, and may cause electrical
short circuits. Frozen batteries may possibly explode, causing bodily
harm.
c. Lubrication. Lubrication of the test stand is to be performed
in accordance with the prevailing temperatures, as prescribed in the
d. Starting.
Allow the drive motor to run for at least 15 minutes
at approximate y 1000 rpm to warm up completely before starting any
tests.
OPERATING IN EXTREME HOT WEATHER CONDITIONS
2-14.
a. General. Station the test stand so that it is protected from
the direct rays of the sun during operation. Keep the air intake and
air exhaust free from obstructions which may hamper proper ventila-
tion. Be alert during operation for unusual odors, smoke, peculiar
noise, or other indications of an overheated drive motor or blower
motor.
b. Lubrication. Lubrication of the test stand is to be performed
in accordance with prevailing temperatures, as prescribed in the
2-15. OPERATION IN HIGH HUMIDITY. Start the test stand and let it
run at approximately 1000 rpm for 15 minutes to allow circulating air
within the cabinet to dissipate accumulated condensation. When moving
the test stand from a low temperature area to a high temperature area,
keep the test stand covered, if possible, with a waterproof cover
until it warms to the ambient temperature to minimize condensation.
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