Westerbeke 20B TWO Installation Manual download pdf (Page 12)

ADMIRAL

CONTROL

PANEL

DESCRIPTION

This 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

WATER

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

OFTHE

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

{n°-

88°C).

PREHEAT

PRESSED,

ENERGIZES

THE

ALTERNATOR'S

EXCITER,

THE

FUEL

LIFT

PUMP,

THE

FUEL

SOLENOID

ON

THE

INJECTION

PUMP,

AND

THE

ENGINE'S

GLOW

PLUGS.

IT

BYPASSES

THE

ENGINE'S

OIL

PRESSURE

ALARM

SWITCH.

IN

ADDITION,

THIS

BUTION

ENERGIZES

THE

START

BUTION.

START

BUTTON:

WHEN

PRESSED,

ENERGIZES

THE

STARTER'S

SOLENOID

WHICH

CRANKS

THE

ENGINE.

THIS

BUTION

WILL

NOT

OPERATE

ELECTRICALLY

UNLESS

THE

PREHEAT

BUTION

IS

PRESSED

AND

HELD

AT

THE

SAME

TIME.

6

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

turned 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 buzzer 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/cm

2

).

OIL

PRESSURE

GAUGE:

THIS

GAUGE

IS

GRADU-

ATED

IN

POUNDS

PER

SQUARE

INCH

(PSI)

AND

IS

ILLUMINATED

WHILE

THE

KEY

SWITCH

IS

TURNED

ON.

THE

ENGINE'S

NORMAL

OPERATING

OIL

PRESSURE

RANGES

BETWEEN

30

-

60

psi

(2.1

-

4.2

kg/em').

SWITCH:

PROVIDES

POWER

ONLY

TO

THE

INSTRUMENT

PANEL

CLUSTER.

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

kg/em'),

THE

SWITCH

WILL

OPEN

SOUNDING

THE

ALARM.

IN

THIS

EVENT,

THE

ALARM

WILL

EMIT

A

PULSATING

SIGNAL.

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