TM 55-4920-215-15
Section IV. OPERATION OF ONE UNIT IN CONJUNCTION
WITH ANOTHER ACCESSORY OR AUXILIARY
17. Auxiliary Connections
16. Maintenance and Operating Instructions
Connections are provided for auxiliary
Maintenance and operating instructions for the
pneumatic and electrical hookups.
The' location,
auxiliary equipment to be used in conjunction with this
purpose, and description of these auxiliary outlets are
shop set are listed in the technical manuals of the
described in paragraphs 75 through 77.
auxiliary.
Section V. OPERATION UNDER UNUSUAL CONDITIONS
18. General Conditions
materials to become hard, brittle, and
a. In addition to the operating procedures
easily damaged or broken.
described for usual conditions, special instructions of a
(2) The cooling systems must be prepared
technical nature for operating and servicing this
and protected for temperature below
equipment under unusual conditions are contained, or
+32 ., in accordance with instructions in
F
referred to herein. In addition to the normal preventive
specific manuals on draining and cleaning
maintenance service, special care in cleaning and
the systems and the application and
lubrication must be observed where extremes of
checking of antifreeze compounds to suit
temperature, humidity, and terrain are present or
the anticipated conditions.
anticipated. Proper cleaning, lubrication, and storage
Caution:
and handling of fuels and lubricants not only insure
It is imperative that the approved
proper operation and functioning but also guard against
practices
and
precautions
be
excessive wear of the working parts and deterioration of
followed. Refer to specific manuals
materials.
applicable to the equipment. This
Caution:
must be considered essential.
It is imperative that the approved
b. Fuels, Lubricants, and Antifreeze Cor, pounds
practices
and
precautions
be
(Storage, Handling, and Use).
followed. A detailed study of the
(1) The operation of equipment at arctic
specific
technical
manuals
is
temperatures will depend to a great extent
essential for use of this equipment
upon the condition of the fuels, lubricants,
under unusual conditions.
and antifreeze compounds used in the
b. When recurrent failure of equipment results
equipment. Immediate effects of careless
from subjection to extreme conditions, report the
storage and handling or improper use of
condition on DA Form 468.
these materials are not always apparent,
19. Extreme Cold Weather Conditions
but any deviation from proper procedures
a. General.
may cause trouble at the least expected
time.
(1) Extensive preparation of equipment
scheduled for operation in extreme cold
(2) In arctic operations, contamination with
weather is necessary. Generally, extreme
moisture is a source of many difficulties.
cold will cause lubricants to congeal,
Moisture can be the result of snow getting
freeze batteries or prevent them from
into the product, a condensation due to
furnishing sufficient current for cold
"breathing" of a partially filled container,
weather starting, crack insulation and
or moisture condensed from warm air in a
cause electrical short circuits, prevent fuel
partially filled container when a product is
from vaporizing and properly combining
brought outdoors from room temperature.
with air to form a combustible mixture for
Other impurities will also contaminate
starting, and will cause the various
fuels and lubricants so their usefulness is
construction
impaired.
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