TM 55-4920-217-15
description of these auxiliary outlets are described in
17. Auxiliary Connections
the auxiliary connections are contained in this chapter.
Connections are provided for auxiliary pneumatic
and electrical hookups. The location, purpose, and
Section V. OPERATION UNDER UNUSUAL CONDITIONS
merely an explanatory supplement to
18. General Conditions
it.
a. In addition to the operating procedures
described for usual conditions, special instructions of a
b. Fuels, Lubricants, and Antifreeze Compounds
technical nature for operating and servicing this
(Storage, Handling, and Use).
equipment under unusual conditions are contained or
(1) The operation of equipment at arctic
referred to herein. In addition to the normal preventive
temperature will depend to a great extent
maintenance service, special care in cleaning and
upon the condition of the fuels, lubricants,
lubrication must be observed where extremes of
and antifreeze compounds used in the
temperature, humidity, and terrain conditions are
equipment. Immediate effects of careless
present or anticipated. Proper cleaning, lubrication, and
storage and handling or improper use of
storage and handling of fuels and lubricants not only
these materials are not always apparent,
insure proper operation and functioning but also guard
but any deviation from proper procedures
against excessive wear of the working parts and
may cause trouble at the least expected
time.
Caution: It is imperative that the
moisture is a source of many difficulties.
Moisture can be the result of snow getting
approved practices and precautions
be followed. A detailed study of the
"breathing" of a partially filled container,
specific
technical
manuals
is
or moisture condensed from warm air in a
essential for use of this equipment
partially filled container when a product is
under unusual conditions.
brought outdoors from room temperature.
b. When recurrent failure of equipment results
paints and lubricants so their usefulness is
from subjection to extreme conditions, report the
impaired.
condition on DA Form 468.
20. Extreme Cold Weather Operation
19. Extreme Cold Weather Conditions
a. General.
(1) The operator must always be on the alert
a. General Problems. Extensive preparation of
for indications of the effect of cold
equipment for operation in extreme cold weather is
weather on the equipment.
necessary.
Generally, extreme cold will cause
(2) The operator must exercise caution when
lubricants to thicken, freeze batteries and cause various
placing the equipment in operation after a
construction materials to become hard, brittle, and
shutdown.
Thickened lubricants may
easily damaged or broken.
cause failure of parts.
Warm up
motorized equipment thoroughly before
Caution:
It is imperative that
operating,
check source voltage of
approved practices and precautions
electrical equipment to ascertain that
be followed.
Refer to specific
sufficient power is available to prevent
manuals
applicable
to
the
motor burn-outs.
equipment. This must be considered
(3) Constantly note instrument readings.
an essential part of this manual, not
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