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 TM 55-1905-219-14-2
OPERATING INSTRUCTIONS
FOR
SEWAGE TREATMENT PLANT
STARTING SYSTEM
1.
Close ball valves at overboard discharge pumps.
2.
Close port valve leading to overboard discharge line.
3.
Open ball valve from plumbing drains to inlet to tank.
4.
Set timing control and pump selector switch.
5.
Close disconnect switch on side of electrical panel.
6.
Press the system start pushbutton on front of panel.
System is now ready for normal flushing operations of urinal and toilets.
NORMAL OPERATION
System will operate automatically until high water alarm system activates, at 90% of tank capacity or 450 gallons,
audible and visual alarms installed in pilot house. The tank will then have to be pumped out.
PUMPING OUT TANK
CAUTION - Do not pump out tank into restricted waters.
1.
Air compressor valves to tank bottom to be opened, air compressor to be activated prior to discharging
overboard.
2.
Open appropriate valves to the overboard discharge pumps leading to the on deck sewage discharge
connection on port side. Connect sewage hose to discharge connection.
3.
Open disconnect switch of overboard sewage discharge pump; press the pump start pushbutton on front of
panel.
4.
Close disconnect switch when tank is empty.
5.
Close switch to air compressor.
TO SECURE SYSTEM
1.
Open disconnect switch on side of electrical panel.
2.
Close all outlet and inlet valves to tank.
2-681
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