Figure 9-10.--Fuel oil transfer section.
appropriate storage tank. The first split-legend
and 9-10. Refer to figures 9-8, 9-9, and 9-10 as
indicator is labeled OPEN and CLOSE. This
you read the description of each section.
indicator illuminates either open (green) or close
Fuel Oil Fill Section
(white) to reflect the position of the storage tank
recirculation valve. The last item in this section,
The FO fill section is shown in detail in figure
labeled EXP TANK, is a drawing representing an
9-9. The storage tanks are divided into six groups
expansion/overflow tank. There are no meters or
of tanks known as banks. Each tank group is
gauges for this tank on the FSCC.
identical except for the number of tanks in each
Located between the MID PORT storage
bank. The AFT PORT and AFT STBD storage
tanks section and the FWD PORT storage tanks
banks consist of three tanks. The MID PORT and
section are the controls and indicators for the
MID STBD storage banks consist of four tanks.
main fill valve of the fuel transfer system. (Refer
The FWD PORT and FWD STBD storage banks
now to section B of fig. 9-9.) The first split-legend
consist of five tanks. Individual meters provide
push-button control under the heading AUTO
tank level monitoring for each tank in the banks.
MODE is labeled NORM and MAN FILL. In the
Since all controls in each tank group are identical,
NORM position, the storage bank fill valve for
only the AFT PORT storage tank group (A) will
the bank being filled will automatically close upon
be discussed.
receiving a FUEL OVERFLOW alarm. The main
The first alarm indicator in this section (A),
fill valve will start to close if a HIGH PRES alarm
labeled HIGH PRES, illuminates amber to
is received. In the MAN FILL position, the
indicate that the pressure in the receiving tank is
storage bank fill valve and the main fill valve must
greater than 11 psig. The second alarm indicator,
be controlled manually. The meter in this section
labeled HIGH SEA WATER, illuminates amber
is scaled from 0 to 100 percent to show the amount
to indicate that the seawater level is 90 percent
of opening of the main fill valve. The second
or greater in the receiving tank. This means
push-button control, labeled OPEN, is used to
only 10 percent of the receiving tank contains
manually open the main fill valve. It illuminates
fuel, while the other tanks in the bank contain
green when the valve is fully open. The third push-
seawater. The third alarm indicator, labeled
button control, labeled CLOSE, is used to close
FUEL OVERFLOW, illuminates amber to
the main fill valve. It illuminates white to indicate
indicate that the last tank in the bank is
the main fill valve is fully closed.
90 percent full of fuel. The first meter in this
Located between the MID STBD storage tanks
section is labeled RCVG TANK PRESS. It
section and the FWD STBD storage tanks section
displays the pressure of the receiving tank, which
are the controls and indicators for the biocide
is the first tank in the bank. The first indicator
system. (Refer to section C of fig. 9-9.) We will
control push button, labeled CLOSE, drives the
not describe this system because it has been
motor-operated fill valve in the close direction.
discontinued and removed from most ships. This
It illuminates white when the valve is fully
system will not be indicated at all on the FSCC
closed. The second indicator control push button,
of newer classes of ships.
labeled OPEN, drives the motor-operated fill
valve in the open direction. It illuminates green
Fuel Oil Transfer Section
when the valve is fully open. There are three
vertical meters that perform the same function but
The FO transfer section shown in figure 9-10
for a different tank in the bank. These meters
consists of two identical systems. The No. 1
display the fuel level (in gallons) for the
9-12
