TM 55-1925-285-13&P
0005 00
NOTE
Oil Discharge from the OWS to the OWT is automatic during manual operation. When
enough oil has collected in the top of the OWS tank to cover the tip of the lower sensor
probe, the OWS will enter the oil discharge mode. The yellow OIL DISCHARGE indicator
on the OWS control panel will light and the OWS pump will stop. The OWS backflush
inlet solenoid valve will open, admitting raw water at about 12 PSI (0.8 bar) to force the oil
out of the OWS tank and into the OWT. When enough oil has been discharged that the
upper sensor probe is again covered with water, the OWS will automatically return to
processing mode. The yellow OIL DISCHARGE light will turn off, the OWS backflush inlet
solenoid valve will close, and the OWS pump will start.
14. Monitor the operation of the OWS. A temporary automatic shutdown of the OWS is normal. Do not drain the
OWT below 10 percent during normal OWS operation. Fouling of the OWS will occur.
OWS SHUTDOWN
1. Turn the OWS control panel switch (figure 1, item 1) to the OFF position.
2. Position OPERATION SELECTOR switch A1S1 (figure 4, item 1) to OFF.
3. Perform OCM backflush by OPENING OCM 2 (figure 3, item 13) and CLOSING OCM 1. Continue OCM
backflush until all liquid from the OCM discharge tube (figure 4, item 4) is clear.
5. Return all valves from table 1 to the CLOSED position.
6. At 120V distribution panel No. 4, set the following circuit breakers to OFF:
a. OILY WATER SEPARATOR (figure 2, item 1).
b. OIL CONTENT MONITOR (figure 2, item 2).
END OF WORK PACKAGE
0005 00-10