TM 55-4920-212--15
25. Operation in Salt Water Areas
22. Operation in Extreme-Hot Weather Conditions
Corrosion is the major problem presented by
a. General.
Operation of the equipment in
operation of the equipment in salt water areas.
extreme hot-weather conditions requires efficient
Particular attention should be given to application of
cooling and proper lubrication. Halt the equipment for a
corrosion
preventive
compounds,
cleaning
of
cooling off period whenever necessary and conditions
equipment, storage, and touchup of painted areas.
permit. Frequently inspect and service cooling units, oil
Remove all traces of salt water and salt water residue
filters, and air cleaners. Check ventilators periodically
from the exterior of the shop by thoroughly washing the
for cracks and obstructions.
Check lubricants for
equipment with fresh water. After drying, apply a
viscosity and lubricating ability.
solution of 76 percent lubricating oil and 24 percent
b. At Stop.
corrosion preventive compound, Military Specification
(1) Do not leave equipment in the sun for
MILC-6529, Type I, to all surfaces not protected by
long periods, place equipment under
paint.
cover to protect it from the sun, sand, and
dust when possible.
Caution
(2) Cover inactive equipment with tarpaulins
Do not allow this mixture to come in
if no other suitable shelter is available.
contact with rubber materials or
(3) Equipment inactive for long periods in hot
parts which are exposed to direct
humid weather is subject to rapid rusting
flame.
and accumulation of fungi growth. Make
frequent inspections and clean and
Operating equipment, including hand tools, may be
lubricate
to
prevent
excessive
protected by application to exterior surfaces of corrosion
deterioration. Protect cooling systems
preventive compound, Military Specification MILC-
with rust inhibiter compound. Remove the
16178, Grade I.
batteries and store in a cool place.
26. Operation In Extreme Dust Conditions
23. Operation In Extreme Wet Climate
Operation of the equipment under this condition
Mud, water, and high humidity are enemies of the
necessitates the frequent inspection of unprotected
equipment in this shop set. Particular attention should
surfaces. All lubricated surfaces should be cleaned
be paid to formation of rust, mud scale, dirt buildup, and
periodically and the contaminated lubricant replaced
mildew. All equipment exposed to these conditions
with uncontaminated lubricant.
should be cleaned and oiled frequently in order to
preserve the operating efficiency.
27. Operation at High Altitudes
24. Operation In Snow and Ice
Overheating of equipment and deviation in
instrument readings constitute the major problems of
The precautions listed in paragraphs 20 and 21,
operating the equipment at high altitudes. Intake ducts,
apply to operating the equipment in snow and ice.
filters, and water supply must be checked at frequent
intervals as a preventive measure for overheating.
Caution
Instruments not compensated for
high altitude operation should be
adjusted
in
accordance
with
instructions contained in the specific
technical manual by second echelon
maintenance personnel.
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