Westerbeke 44A FOUR - 35C THREE Operator's Manual page 12

CAPTAIN CONTROL PANEL
DESCRIPTION
This manually-operated control panel is equipped with a
KEY switch, an RPM gauge, PREHEAT and START but-
tons, an INSTRUMENT 1EST button and three indicator
lamps, one for AL1ERNATOR DISCHARGE, one for low
OIL
PRESSURE, and one for high ENGINE
COOLANT
1EMPERATURE.
RPM GAUGE: REGISTERS REVOLUTIONS
PER MINUTE OF THE-ENGINE AND CAN BE
RECALIBRATED FOR ACCURACY FROM
THE REAR OF THE PANEL.
OIL PRESSURE
ALARM
WATER TEMPERATURE
ALARM LIGHT
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.
The panel also includes an alarm buzzer for low
OIL
PRESSURE or high
COOLANT
1EMPERATURE. The
RPM gauge is illuminated when the KEY switch is turned
on
and remains illuminated while the engine is in operation.
ALARM: THE ALARM'WILlSOUND'IF THE ENGINE'S OIL PRESSURE FALLS
BELOW 10- 5
psi
(0;7..:. 0.4
kg/em').
IN THIS EVENr;THE ALARM WILL EMIT A
PULSATING SIGNAL THE ALARM WILL ALSO SOUND IF THE COOLANT
TEMPERATURE IN THE FRESHWATER COOLING CIRCUIT RISES TO
210•F·(99•C).IN THIS EVENT, THE ALARM WILL EMIT A CONTINUOUS SIGNAL.
NOTE: THE ALARMWILL·SOUND WHEN THE KEY SWITCH IS TURNED ON. THIS
SOUNDING IS NORMAL. ONCE THE ENGINE STARTS AND THE ENGINE'S OIL
PRESSURE REACHES 15 psi (1.1 kg/em'). THE ALARM WILL SILENCE.
TEST BUTTON: WHEN
PRESSED, TESTS THE
ALTERNATOR, THE OIL
PRESSURE, AND THE
COOLANT TEMPERA-
TURE CONTROL CIR-
CUITS. WHEN PRESSED,
THE ALTERNATOR, THE
OIL PRESSURE, AND
THE WATER TEMPERA-
TURE INDICATOR
LIGHTS ILLUMINATE IN
ADDITION TO SOUND-
ING THE ALARM
BUZZER.
~---KEY SWITCH: THE KEY
SWITCH WHEN TURNED ON
SUPPLIES DC POWER TO THE
INSTRUMENT PANEL
CLUSTER, PREHEAT SWITCH,
EXCITATION TERMINAL OF THE
DC CHARGING ALTERNATOR
AND TO THE ALARM BUZZER
ENERGIZING IT IN A PULSING
MODE.
PREHEAT BUTTON: WHEN DEPRESSED, IT CLOSES
THE CONTACTS IN THE PREHEAT SOLENOID SENDING
POWER TO THE GLOW PLUGS. THE "I" TERMINAL ON THE
PREHEAT SOLENOID ALSO RECEIVES POWER AND THIS IS
TRANSMITTED TO THE ELECTRIC FUEL PUMP. DC POWER
IS ALSO TRANSMITTED TO THE START BUTTON.
Engines. & Generators
.6