TM 55--4920-217-15
lubricate
to
prevent
excessive
If instrument readings consistently deviate
from normal, stop the equipment and
investigate cause.
b. At Stop.
22. Operation in Extreme Wet Climate
Mud, water, and high humidity are enemies of the
(1) When halted for short shutdown periods,
equipment in this shop set. Particular attention should
the equipment should be sheltered from
be paid to formation of rust, mud scale, dirt buildup, and
the wind.
mildew. All equipment exposed to these conditions
(2) When preparing equipment for shutdown
should be cleaned and oiled frequently in order to
periods, place control levers in the neutral
preserve the operating efficiency.
position to prevent them from possible
freezing in an engaged position. Freezing
may occur when water is present due to
23. Operation in Snow and Ice
(3) Clean all equipment of ice, and
The precautions listed in paragraphs 19 and 20
condensate as soon as possible after
apply to operating the equipment in snow and ice.
operation. If the side panels are not
installed, be sure to protect all equipment
24. Operation in Salt Water Areas
against entrance of loose, drifting snow
during the halt.
Corrosion is the major problem presented by
(4) Open drain cocks to remove liquid from
operation of the equipment in salt water areas.
water separators, inspect drain cocks for
Particular attention should be given to application of
obstructions.
Remove any foreign
corrosion
preventive
compounds,
cleaning
of
material or obstructions from drain cocks.
equipment, storage, and touchup of painted areas.
Leave drain cocks in full open position
Remove all traces of salt water and salt water residue
while equipment is inoperative.
from the exterior of the shop by thoroughly washing the
equipment with fresh water. After drying, apply a
21. Operation in Extreme Hot Weather Conditions
solution of 75 percent lubricating oil, and 25 percent
a. General.
Operation of the equipment in
corrosion preventive compound, Military Specification
extreme hot weather conditions requires efficient cooling
MIL-C-6592, Type I, to all surfaces not protected by
and proper lubrication. Halt the equipment for a cooling
paint.
off period whenever necessary and conditions permit.
Frequently inspect and service cooling systems and air
Caution:
Do not allow this
filters. Check ventilators periodically for cracks and
mixture to come in contact with
obstructions.
Check lubricants for viscosity and
rubber materials or parts which are
lubricating ability.
exposed to direct flame.
b. At Stop.
(1) Do not leave equipment in the sun for
Operating equipment including hand tools, may be
long periods, place equipment under
protected by an application to exterior surfaces of
cover to protect it from the sun, sand, and
corrosion preventive compound, Military Specification
dust when possible.
MIL-16173, Grade I.
(2) Cover inactive equipment with tarpaulins
if no other suitable shelter is available.
25. Operation in Extreme Dust Conditions
(3) Equipment inactive for long periods in hot,
Operation of the equipment under this condition
humid weather is subject to rapid rusting
necessitates the frequent inspection of unprotected
and accumulation of fungi growth. Make
surfaces. All lubricated surfaces
frequent inspections and clean and
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