TM 55-1930-209-14&P-2
d.
Open or close seawater valves as follows:
o = open
x = closed
- = not affected
SW valve no.:
Seawater supplied by:
1
2
9
10
16
17
19
21
29
Seawater pump 1 only
o
-
o
-
o
-
x
-
o
Seawater pump 2 only
-
o
-
o
x
o
o
x
o
Both seawater pumps
o
o
o
o
o
o
o
x
o
e.
Make sure switchboard circuit breakers P6 and P7 are closed (ON).
f.
Start seawater pump using local control switch in void 2 starboard.
CAUTION
Do not overfill ballast tank.
g.
While filling ballast tank, perform during operation checks.
h.
To prevent overfilling, check ballast tank visual level indicator and display page on equipment monitoring
system (EMS) video monitor. If EMS alarms sound, stop filling and stop alarms according to procedures
in TM 55-1930-209-14 & P-11.
i.
Stop seawater pump when inclinometer in void 2 starboard indicates desired trim.
3-3.5.2 Filling ballast tank from starboard shell
a.
Perform before operation checks in paragraph 4-3.
b.
Open seawater valves SW31 thru SW34.
c.
Close seawater valves SW7, SW8, SW11, SW12, SW18, and SW20.
d.
Open or close seawater valves as follows:
o = open
x = closed
- = not affected
SW valve no.:
Seawater supplied by:
1
2
4
5
6
9
10
16
17
19
21
29
Seawater pump 1 only
x
-
o
o
x
o
-
o
-
x
-
o
Seawater pump 2 only
-
x
o
x
o
-
o
x
o
o
x
o
Both seawater pumps
x
x
o
o
o
o
o
o
o
o
x
o
e.
Perform steps e thru i in paragraph 3-3.5.1.
3-3.6
Draining ballast tank (to correct a stern high condition)
NOTE
Draining ballast tank requires only one seawater pump. The other seawater pump
may be used to supply seawater to one ROWPU unit. See Figures 1-3 and 1-4 for
seawater valve locations.
3-15
