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 TM 55-1905-217-12
SECTION II. OPERATION OF AUXILIARY EQUIPMENT
(7) Release the lever to close the valve as soon as
2-7. Bilge Pumping System (fig. 1-15.1 and 2-14) a. a.
conditions permit and continue to open and close the
a. Description. The bilge pumping system includes
valve as necessary.
three bilge pumps which are belt-driven from the inboard
NOTE
engines, a suction manifold with nine lines to the various
The valve can be opened and closed repeatedly
bilge areas, bilge strainers and check valves, discharge
without loss from leakage.
lines, and priming lines from the sea water system to the
bilge pumps. Hull numbers 8540 thru 8560 and 8580
(8) When continuous operation is desired, the D-
thru 8618 incorporate three bilge pumps with friction type
yoke ring on the carrying handle may be slipped over the
clutches to allow manual engagement or disengagement
operating handle when the handle is depressed.
of the pump shaft and impeller assemblies.
b. Operation.
b. Operating Disk-Type Valve CO2 Extinguishers.
(1) Follow the instructions in a (1) and (3) above.
(1) Open the valves in the priming lines.
(2) Open the valve by turning the valve wheel to the
(2) Open bilge pump overboard discharge valve (fig.
left; this starts the discharge of the carbon dioxide on the
fire.
(3) Open bilge pump suction valves (figs.
(3) Follow procedures in (4), (5), and (6) above.
(4) Close the valve as soon as conditions permit and
compartments.
continue to open and close the valve as necessary.
(4) Open bilge line valves (fig. 1-15.1 and 2-14) as
necessary to pump out the various bilge compartments.
NOTE
On the disk-type valve extinguisher, the discharge of gas
(5) On hull numbers 8540 thru 8560 and 8580 thru
may be temporarily halted by turning the valve wheel
8618, engage clutch on applicable bilge pumps (fig. 1-
clockwise. Do not atop the discharge too soon. When
15).
the flame has been extinguished, coat the entire surface
involved in the fire with carbon dioxide snow. The
coating will check incandescence and prevent reflash.
2-8. Fire Extinguishers
There are four CO. fire extinguishers aboard the vessel.
2-9. Communication Equipment
On hulI numbers 8500 thru 8539, one is in the pilot
house, one in the engine compartment, and two in the
Operating instructions for the communication equipment
cargo well. On hull numbers 8540 thru 8560 and 8580
may be found in the technical manual covering the
thru 8618, there is one in the pilot house, two in the
specific component.
These manuals are listed in
engine room, and one in the lazarette.
AN/VRC-47 may be installed in the LCM-8 landing craft.
a. Operating Squeeze Grip CO, Extinguisher.
2-10. Navigation Equipment
(1) Carry the extinguisher in an upright position and
approach the fire as closely as the heat permits.
a. Description. The Remote Magnetic Heading
(2) Remove the locking pin from the valve.
System (RMHS) includes an induction compass
(3) Grasp the horn handle.
transmitter, located on the mast support, that senses the
(4) Squeeze the release lever and at the same time
landing craft's heading relative to magnetic North; and a
direct the carbon dioxide flow toward the base of the fire.
heading indicator, located in the pilot house, that
(5) Fight the fire from the windward side so the wind
indicates the landing craft's heading as determined -by
will blow the heat away from the operator and at the
the induction compass transmitter.
same time direct the carbon dioxide over the fire.
(6) In fighting fire in electrical equipment, or on a
b. Operation. To engage the RMHS, set RMHS
bulkhead, direct the discharge at the bottom of the
COMPASS RECP switch (switch No. 6 on distribution
flaming area. Move the horn slowly from side-to-side and
panel) on.
follow the receding flames upward.
2-35
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