Admiral Control Panel - Westerbeke 90A Four Service Manual

ADMIRAL CONTROL PANEL
DESCRIPTION
Tiris manually-operated control panel is equipped with a
KEY switch and RPM gauge with an ELAPSED TIME
meter which measures the engine's running time in hours and
in 1/10 hours. The panel also includes a WA1ER TEMPER-
ATURE gauge which indicates water temperature in degrees
Fahrenheit, an OIL PRESSURE gauge which measures the
engine's oil pressure in pounds per square inch, and a DC
control circuit VOLTAGE gauge which measures the sys-
tem's voltage. All gauges are illuminated when the key
switch is turned on and remain illuminated while the engine
is in operation. The panel also contains two rubber-booted
pushbuttons, one for PREHEAT and one for START.
RPM GAUGE: REGIS-
TERS REVOLUTIONS
PER MINUTE OF THE
ENGINE AND CAN BE
RECALIBRATED FOR
ACCURACY FROM THE
REAR OF THE PANEL.
HOURMETER:
REGISTERS ELAPSED
TIME, AND SHOULD BE
USED AS A GUIDE FOR
THE MAINTENANCE
SCHEDULE.
WATER
TEMPERATURE
GAUGE:
THIS GAUGE IS
GRADUATED IN DEGREES FAHRENHEIT AND IS
ILLUMINATED WHILE THE KEY SWITCH IS
TURNED
ON.
THE ENGINE'S NORMAL OPERATING
TEMPERATURE IS 170"-190" F (77"-88°C).
PREHEAT BUTTON: WHEN PRESSED, ENERGIZES THE
ALTERNATOR'S EXCITER, THE FUEL LIFT PUMP, THE FUEL
SOLENOID ON THE INJECTION PUMP, AND THE ENGINE'S
AIR INTAKE HEATER. IT BYPASSES THE ENGINE'S OIL
PRESSURE ALARM SWITCH. IN ADDITION, THIS BUTTON
ENERGIZES THE START BUTTON.
START BUTTON: WHEN PRESSED, ENERGIZES THE
STARTER'S SOLENOID WHICH CRANKS THE ENGINE.
THIS BUTTON WILL NOT OPERATE ELECTRICALLY
UNLESS THE PREHEAT BUTTON IS PRESSED AND HELD
AT THE SAME TIME.
When the engine is shut down with the key switch turned off,
the water temperature gauge will continue to register the last
temperature reading indicated by the gauge before electrical
power was
tum~
off. The oil pressure gauge will fall to zero
when the key switch is turned off.
The temperature gauge
will once again register the engine's true temperature when
electrical power is restored
to
the gauge.
A separate alann buzz.er with harness is supplied with every
Admiral Panel. The installer is responsible for electrically con-
necting the buzzer
to
the four-pin connection on the engine's
electrical harness.
The
installer is also responsible for installing
the buzzer in a location where it will be
dry and where it will
be audible to
the operator should it sound while the engine is
running. The buzzer will sound when the ignition key is turned
on and should silence when the engine has started and the
engine's oil pressure rises above 15 psi
(1.1 kg/cm2).
78
OIL PRESSURE GAUGE: THIS GAUGE IS GRADU-
ATED IN POUNDS PER SQUARE INCH (PSI} AND IS
ILLUMINATED WHILE THE KEY SWITCH IS TURNED
OR. THE ENGINE'S NORMAL OPERATING OIL
PRESSURE RANGES BETWEEN 30- 60 psi
(2.1 - 4.2
kg/crn2}.
KEY
SWITCH: PROVIDES
POWER ONLY TO THE
INSTRUMENT PANEL
CLUSTER.
DC VOLTMETER:
INDICATES THE AMOUNT THE
BATTERY IS BEING CHARGED.
/ SHOULD SHOW 13V TO
14V.
/AUTOMATIC ALARM SYSTEM
COOLANT TEMPERATURE ALARM: AN ALARM BUZZER HAS BEEN
SUPPLIED WITH THE INSTRUMENT PANEL IF THE ENGINE'S COOLANT
REACHES 2100 F (99°C}, THIS SWITCH WILL CLOSE SOUNDING THE
ALARM WHICH WILL EMIT A CONTINUOUS SIGNAL.
OIL PRESSURE ALARM: AN OIL PRESSURE ALARM SWITCH IS
LOCATED OFF THE ENGINE'S OIL GALLERY. THIS SWITCH MONITORS
THE ENGINE'S OIL PRESSURE. SHOULD THE ENGINE'S OIL PRESSURE
FALL TO
5-10
psi
(0.4-
0.7 kglcm2), THE SWITCH WILL CLOSE SOUND-
ING THE ALARM. IN THIS EVENT, THE ALARM WILL EMIT A PULSATING
SIGNAL.