TM 55-2090-201-14&P
3-38. FILTER ELEMENT (#) (Continued).
LOCATION
ITEM
ACTION
REMARKS
2.
Element
NOTE
Two types of filter elements are used, the prefilter
element 614-501, (MIL-F-52847, Type II), in the first
stage, and the coalescer element 611-100, (MIL-F-52847,
Type III),
in the second and third stages (3 and 6).
a. With the pump (1), running
and control power on, dis-
charge as much oil as pos-
sible from the separator
stage in which the element
is to be replaced according
to the following:
(1) To discharge from the
first (prefilter) or
second stages (2 or 3),
manually depress the
oil dump light/button
(4 or 5) for the
respective stage.
(2) To discharge oil from
the third stage (6),
open the manual oil
discharge valve (7)
until all oil has been
discharged.
b. Stop the supply pump (1) by
turning the supply pump se-
lector switch (8) OFF.
c. Turn the auto controls se-
lector switch (9) OFF.
d. To drain water from the
first stage (prefilter) (2):
3-238
