TM 5-5420-202-20-2
FUEL-WATER SEPARATOR OPERATIONAL TESTS (Sheet 4 of 11)
Automatic Drain Test (Sheet 1 of 2)
1.
Using screwdriver, remove clamp (A) from
sensor wires and position sensor wires
(B) and (C) as shown in illustration.
2.
Fill metal container (D) with water.
Place metal container (E) under drain
3.
line solenoid drain valve drain tube (F)
4.
Using pliers, disconnect engine
electrical harness connector (G)
f r o m fuel-water separator control
box (H) by turning counterclockwise.
5.
Connect jumper wire from negative (-)
terminal of power source (J) to metal
container (D).
NOTE
In order to perform steps 6 and 7, two
leads, similar to multimeter leads with probe
on one end and alligator clip on the other
end, will be required.
It will be necessary to use two technicians
each time these leads are used. The probes
are touched to the pins in receptacle K and
h e l d in place with hands of second
technician throughout these tests.
With one lead, connect negative (-)
6.
terminal of power source (J) to contact
B (L) of fuel-water separator control
box receptacle (K).
Do not let probe at contact A (M) of fuel-water
separator control box (H) touch side of receptacle
(K). Do not let upper sensor (N) and lower sensor (B)
come in contact with each other or with bottom or
side of metal container (D). When moving sensors,
do so by touching insulated wires (C and B). Do not
touch (N) or (P) with hands.
With other lead, connect power contact A (M) at fuel-water separator control box (H)
7.
to positive (+) terminal of power source (J).
Go on to Sheet 5
