Pump Ballast Operation.

TM 55-1915-200-10

d. Open pump suction valve (22 and/or 24).

(3) Open emergency fire pump discharge

valve (7).

e. Open pressure gauge cutout valve (26).

(4) Turn START switch (3, FIGURE 2-93) to

ON, emergency fire pump motor controller in aft

f. Open pump discharge (28 and/or 30).

passageway.

g. Open discharge valve (1) to sludge tank for

(5) Observe discharge pressure gauge (9,

discharge of contaminated bilge water.

FIGURE 2-107).

h. Open inline stop valve (2) and overboard

NOTE

discharge valve (3) to discharge bilge overboard.

If no pressure is indicated within 30

i. Open ballast overhead valve (12, FIGURE 2-

seconds, turn switch (3, FIGURE 2-

144).

93) to OFF.

Refer to unit

maintenance.

j. Depress start switch (67 or 71, FIGURE 2-103,

Sheet 4 of 6) and start pump (12 or 41, FIGURE 2-146).

(6) Turn fire/bilge pump motor switch (110,

FIGURE 2-103, Sheet 6 of 7) to OFF on engine room

NOTE

motor control center.

Observe discharge pressure gauge

(7) Close fire/bilge sea water suction valve

(20).

(13, FIGURE 2107).

If no discharge pressure is

(8) Close fire/bilge pump suction valve (19).

indicated within 20 seconds, depress

stop switch (66 or 70, FIGURE 2-103,

(9) Close fire/bilge pump discharge valve

Sheet 4 of 6) and stop pump. Refer

(11).

to unit maintenance.

(10) Close fire/bilge pump discharge valve to

k. Depress stop switch (66 or 70) and stop pump

firemain (7).

when bilge area or void tank being pumped is empty.

(11) Open ballast tank suction/discharge

l. Close all valves in bilge piping system (FIGURE

valves (15, 16, 17, 22, and 25, FIGURE 2-144) as

2-145).

required.

2-5.12.2 Pump Ballast Operation.

(12) Open cross connect valve between bilge

piping and ballast main (28).

a. Start emergency fire pump.

(13) Open bilge/ballast pump suction valve to

(1) Close valve (1, FIGURE 2-145)

ballast main (27).

emergency fire pump suction valve to ballast main.

(14) Open bilge pump suction valve (22 and/or

(2) Open valve (2) emergency fire pump sea

24, FIGURE 2-145).

water suction valve from sea chest in skeg.

(15) Open bilge pump discharge valves (28

and/or 30).

2-420