TM 5-5420-202-20-2
FUEL-WATER SEPARATOR OPERATIONAL TESTS (Sheet 9 of 11)
Sequential Drain Test (Sheet 2 of 4)
Do not let probe at contact A (E) of fuel-water
separator control box (F) touch sides of receptacle
(G). Do not let upper sensor (H) and lower sensor
(J) come in contact with each other or with
bottom or sides of metal container (K). When
moving sensors do so by touching insulated wires
(L and M). Do not touch (H) or (J) with hands.
NOTE
Steps 8 through 11 must be performed within 18
3 seconds.
Hold tip of lower sensor (J) in water in
8.
metal container (K).
Hold tip of upper sensor (H) in water in
9.
metal container (K) and check if fluid starts
draining from solenoid drain valve drain
tube (N).
10.
Remove tip of upper sensor (H) from
water in metal container (K) and check
if fluid keeps draining from solenoid drain
valve drain tube (N).
Go on to Sheet 10
7-231