TM 5-5420-202-20-2
FUEL-WATER SEPARATOR OPERATIONAL TESTS (Sheet 5 of 11)
8.
9.
10.
CAUTION
Be very careful not to disturb center filter
element. Center filter element must be
replaced if disturbed in any way.
11.
Using 7/16 inch wrench, remove eight screws,
lockwashers, and washers (R) securing cover
to separator (S). Remove cover (T) from
Add fuel to fuel-water separator (S) until
12.
separator (S).
f u e l leaks from upper sensor hole (Q).
13.
Using 5/16 inch wrench, install pipe plug
into upper sensor hole (Q).
Place cover (T) in position and, using 7/16
14.
inch wrench, install eight screws, lockwashers,
and washers (R). Make sure bleed cap (U)
is open (loose).
Hold tips of upper (N) and lower (P) sensors
15.
in water in metal container (D).
NOTE
Remove both upper (N) and
lower (P) sensors from water in
metal container (D) as soon as
fluid begins draining from drain
tube (F).
Listen for solenoid drain valve (V) to click
16.
and watch for fluid to begin draining from
drain tube (F).
17.
If fluid does not begin draining, refer to
troubleshooting procedures (page 4-258).
Go on to Sheet 6
18.
If fluid does begin draining, go on to 15-
second drain test on next page.
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