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 TM 55-1905-223-24-18-1
g. Bowthruster Control. The bowthruster control panel located on the pilothouse
console provides control and monitoring of the bowthruster waterjet operation.
Indicator lamps are provided to indicate that electrical power and hydraulic power
are available, minimum hydraulic oil level in the hydraulic oil tank, and minimum
lube oil level in the lube oil tank. Alarm horns accompany the visual indication of
minimum hydraulic oil and lube oil tank levels. Pushbutton controls are also
provided for activating the electrical power unit and hydraulic unit. A toggle
switch is used for steering the waterjet nozzle to the angle of thrust desired. The
angle of thrust is displayed on a meter.
h . Fire Detection. The fire control panel is located in the aft section of the
pilothouse and provides the bridge with status of the vessel fire detection system.
The fire control panel is the system main controller processor. It processes all
incoming signals from each vessel zone and converts them to an independent output
that is displayed on the panel: alarm horn, alarm and status lamps, trouble lamps,
battery charger, current and voltage meters. Controls are provided for system reset
and lamp testing, alarm silencing, and trouble silencing.
i. Bow Ramp Control . The bow ramp control system consists of three bow ramp
control panels: pilothouse console, boatswain storeroom (bow ramp winch), and
starboard forecastle deck. Controls are provided for turning the winch electric
motor off and on (PHC and boatswain storeroom only) and raising and lowering the
ramp. Pushbuttons are provided for starting and stopping the winch hydraulic pump
and taking up tension (slack) on the wire rope. Indicator lamps provide visual
display of hydraulic oil temperature (above 150F), tension (slack wire rope), and
hydraulic pump running.
Dead Man Alarm. The dead man alarm system is incorporated in the machinery
j.
plant monitoring engine room console panel and bridge console panel. The bridge
console panel contains an illuminated pushbutton that when depressed causes the
corresponding illuminated pushbutton and audible horn on the engine room console
panel to be activated. If the engine room attendant does not acknowledge the dead
man activation by the bridge within a specified time, alarms will sound, signifying
the engine room attendant cannot acknowledge. If the engine room attendant answers
the dead man alarm within the specified time, both illuminated pushbuttons will
extinguish and horn will be silenced.
k. Engineer's Assistance Needed. The engineer's assistance needed system is
incorporated in the machinery plant monitoring engine room console panel. The
assistance needed system notifies off watch engineers that the ERC attendant needs
assistance. The system is activated when the ENGINEER ASSISTANCE NEEDED illuminated
pushbutton on the ERC is pushed. This action causes an audible alarm and flashing
lamp to be activated at remote panels in the mess room and the chief engineer's
stateroom. Pressing the illuminated pushbutton on one of the remote panels will
acknowledge the assistance needed request. The system will also be activated by the
dead man alarm system if the ERC attendant does not acknowledge the dead man alarm
in the specified time limit.
1-13. Fire Detection System. The fire detection system (FIGURE 1-4) sounds an
alarm when fire is detected via temperature rate-of-heat rise detectors located
throughout the LCD. The system consists of the fire control panel located in the
pilothouse, a terminal box, heat rise detectors (thermostats) located in various
compartments, manual pull stations, and a lo-inch bell. The heat detectors are
arranged in six zones throughout the vessel. When a fire condition is detected,
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