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 TM 55-1925-273-10-1
0071 00
HIGH LEVEL SEACHEST (SHALLOW WATER) OPERATION
NOTE
Only fire and general service pump 1 is capable of drawing suction from both the aft sea chest
and the high level sea chest. Normal lineup is for fire and general service pump 1 to draw suction
from the aft sea chest while fire and general service pump 2 draws from the high level sea chest.
1.
At fire and general service pump 1 motor controller:
a.
Press the STOP pushbutton (figure 3, item 6)
b.
Verify that the MOTOR RUN indicator lamp (figure 3, item 5) goes out.
2.
Perform valve lineup as shown in table 1.
3.
At fire and general service pump 1 motor controller:
a.
Press the START pushbutton (figure 3, item 4).
b.
Verify that the MOTOR RUN indicator lamp (figure 3, item 5) is illuminated.
Table 1. Aft Sea Chest and High Level Sea Chest Valve Lineup (refer to figure 6)
Key
Valve
Normal Operation
Shallow Water
Operation
1
FM-2 SEA SUCT. FIRE /G.S. & BLST PMPS
OPEN
CLOSED
2
FM-3 S.W. TO BILGE/BLST. PMPS.
OPEN
CLOSED
3
AE-29 SEACHEST VENT
OPEN
OPEN
4
High Level Raw Water 2
OPEN
OPEN
5
High Level Sea Chest Vent
OPEN
OPEN
6
FM-4 EMER BILGE SUCT
CLOSED
CLOSED
7
High Level Raw Water 1
CLOSED
OPEN
8
Sea Chest Cross Connect
CLOSED
OPEN
INDIVIDUAL FIRE STATION OPERATION
1.
Verify that the fire main is pressurized.
2.
At the selected fire station, perform the following actions:
a.
Ensure that the hose is connected to a fire station cutoff valve.
b.
Remove the fire hose from its storage rack.
c.
Lay the hose out and extend it to its full length.
0071 00-9
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