Westerbeke WPDS-20 Manual del operador descargar pdf (Pagina 12)

Connecting Pressure Sensing Devices to Oil Galleries

Oil

pressure sensing devices, such

senders

and

switches, must not

connected to

engine's

oil

gal-

lery with the

use

of extended nipples or

tees.

The

reason

simply that continued engine vibration

causes

fatigue of the fittings

used

to make such a connection.

these fittings

fail,

the engine loses

its

oil

pressure

and

quickly

seizes.

When

additional sensing devices such

switches or sensors

need

installed that function

engine

oil

pressure, these devices must

bulkhead-mounted

and

connected to the

oil

gallery using

appropriate

grade of lubricating

oil

hose. Any fittings

used

to connect

the

hose to the gallery must

steel

or malle-

able iron composition.

Brass

must not

used

for this application.

Automatic

Alarm System

High Water Temperature

Alarm

A high water temperature alarm buzzer

has

been

supplied with the instrument

panel.

the engine's

fresh

water coolant reaches

210

(98.8°

C),

a water temperature switch

the engine closes causing the

alarm

to emit a continuous

signal.

Refer

to the

"DESCRIPTION

INSTRUMENT

PANEL"

section of this

manual

for the location of the alarm

your engine

panel,

page

24.

Low

Oil

Pressure Alarm

low

oil

pressure alarm switch

located off the engine's

oil

gallery.

This

switch monitors the engine's

oil

pressure. Should the engine's

oil

pressure

fall

psi,

the

switch will close sounding this

same

alarm.

this

event,

the alarm

will

emit a pulsating

signal.

Refer

to the

"DESCRIPTION

INSTRUMENT

PANEL"

section of this

manual

for the location of the alarm

your

engine

panel,

page

24.

Cooling System

The

engine

fresh water cooled by

engine-mounted

heat

exchanger.

Sea

water

used

the

heat

exchanger's cooling medium.

Sea

water

pumped into the exchanger by a

sea

water pump,

where

cools

the

fresh water that circulates through

the

engine block,

and

then injected into the exhaust elbow, carry-

ing

with it the

heat

removed from the engine's

fresh

water cooling

system.

Sea

water should

supplied to the

sea

water pump through a flush·type

hull

fitting using a wire-reinforced

hose

between the through-hull fitting

and

the

sea

water

pump.

The

sea

water should

directed through a

visual-type

sea

water strainer, which will trap debris before

reaches

the

sea

water pump

and

the

heat

ex-

changer,

and

then

delivered to the pump.

Hoses

routed from

the

through-hull fitting to the strainer

and

to the

sea

water pump should be wire-reinforced to prevent the hose from collapsing while the

engine

run-

ning (suction from the pump may collapse a non-reinforced

hose).

The

sea

water strainer should

mounted

or below the water line to make

sure

the

sea

water

line

remains

primed.

Westerbeke

Diesel Engines 18

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 113 114

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Westerbeke WPDS-20 Manual del operador Pagina 12

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