Section II. OPERATION UNDER UNUSUAL CONDITIONS
the fuel. Water must be drained from the sump
through the water drain valve more frequently than
a. Operation in Extreme Cold.
under normal conditions.
(1) The filter-separator is not equipped with
(2) Erect a shelter to prevent the entrance of
winterizing gear. The stopping procedure will be
rain into the interior of the filter-separator when it
the same as during operation under usual con-
is opened for servicing.
ditions, except water must be drained more
(3) Check differential pressure indicator
frequently than usual and at each shut down by
periodically to be sure that pressure setting has not
opening the water drain valve (36, fig. 1-2, sheet 2
been exceeded.
of 2). If possible provide a heated shelter.
d. Operation in Salt Water Areas.
(1) Check differential pressure indicator (6,
(1) To prevent corrosion, wipe or flush down
the exterior surfaces of the filter-separator regularly
differential setting has not been exceeded. Change
with fresh water. Inspect all painted surfaces for
filter elements (para 3-5) if necessary.
cracked, chipped, peeled, or blistered paint. Coat
b. Operation in Dusty or Sandy Areas.
all exterior exposed surfaces in accordance with
(1) Under dusty or sandy conditions, filter
Military Specification MIL-T-704, Type A. Color
elements must be replaced at more frequent in-
is to be olive-drab, shade 34087 of Federal
tervals. Select a worksite protected by natural
Standard No. 595.
barriers or erect screens of dustproof material.
(1) Check differential pressure indicator
(2) Keep the unit free of dust and dirt,
periodically to be sure that pressure setting has not
especially when the unit is open for servicing.
been exceeded.
(3) Erect a shelter to prevent dust in the
e. Operation in High Altitudes.
interior of the filter-separator when it is opened for
(1) The filter-separator is pressurized during
servicing.
normal operation. Operation at high altitudes will
(4) Check differential pressure indicator
not increase internal pressures beyond the normal
periodically to be sure that pressure setting has not
limits of the equipment.
been exceeded.
(2) Check differential pressure indicator
c. Operation Under Rainy or Humid Conditions.
periodically to be sure that pressure setting has not
(1) Rainy or extremely humid conditions may
been exceeded.
cause unusual amounts of water to be entrained in
