Section Ill. OPERATION UNDER UNUSUAL CONDITIONS
2-4. Operation under Humid Conditions
2-3. Operation In Extreme Cold
a. General. In areas of high humidity water will form
extremely cold weather, it should be installed in a heated
in the frame. If the operation is very intermittent duty,
lack of proper ventilation will cause rusting, oil sudging,
building. When this is impossible (installed in a truck),
and rapid wear of moving parts.
provisions should be taken to warm the equipment before
b. Ventilation. Assure that the unit is adequately
ventilated so that plenty of air circulates around the
accordance with LO 5-4310-348-12.
Assure that the compressor unit
cycles on and off frequently. If necessary because of
(1) Drain condensate frequently.
irregular or insufficient use, drain the air receiver of air
and condensate (para 3-llc.) frequently.
for several hours, drain the receiver of air and condensate
d. Lubrication. Check the oil in frame daily to
and leave draincock open. Tag starter switch with
ascertain when water is forming. Change oil when water
notification to close draincock before starting.
is noticed in the frame.