Westerbeke 12.0KW - 50Hz EDT Installation Manual download pdf (Page 25)

FUEL

SYSTEM

DIESEL

FUEL

Use No.2 diesel

fuel

with a cetane rating of

45

or

rugher.

Do

not

use

kerosene or

home

heating

fuel.

FUEL

WATER

SEPARATOR

A primary fuel filter of the water separating type must

be

installed between the

fuel

tank

and

the

engine to

remove

water

and

other contaminant's from the

fuel

before

they

can

be

carried

to

the

fuel

system on the

engine.

Most installers include a filter/water separator with the

installation package

as

they

are

aware

of the problems that

contaminant's

in

the

fuel

can

cause.

A typical

fuel

filter/water separator

is

illustrated

below.This

is

the Raycor

Model

500

MA.

Keep

in

mind that if a water

separator type

filter

is

not installed between the

fuel

supply

tank

and

engine-mounted

fuel

system,

any

water in the

fuel

will

affect

the

fuel

pump,

engine

filter,

and injection equip-

ment.

The

owner/operator

is

responsible

for

making certain

the

fuel

reaching

the

engine's injection equipment

is

free of

impurities.

This

process

is

accomplished by installing

and

maintaining a proper filtration/separation

system.

FUEL

FILTER

WATER

SEPERATOR

FUEL

INJECTION

PUMP

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.

The

fuel

injection

pump

is

the most important component of

the

diesel engine,requiring the utmost caution

in

handling. The

fuel

injection pump has been thoroughly bench-tested and

the

owner-operator

is

cautioned

not

to

attempt

to

service

it.

If

it

requires servicing, remove it

and

take

it to

an

authorized

fuel

injection pump service

facility.

Do

not

attempt

to

disassemble

and

repair

it.

Speed (hertz)

and

timing

are

the

only

adjustments

the

servicing dealer

can

perform

on

the

injection

pump.

Other

types

of adjustments

or.

repairs must

be

performed

by

a

qualified injection service shop.

FUEL

LIFT

PUMP

Periodically

check the

fuel

connections

to

and out of

the

pump

and

make

sure

that

no

leakage

is

present

and

that

the

fittings

are

tight

and

secure.

The

DC

ground

connection

at

one

of

the

pumps

mounting

bolts

should

be

clean

and

well

secured

by

the

mounting

bolt

to

ensure

proper

pump

operations.

When

energized

thru

the

preheat circuit, the

fuel

lift

pump

will

purge

air

from

the

fuel

system

and

provide

continuous

flow

of

fuel

as

the

engine

is

running.

FUEL

FILTERS

The

fuel

injection pump

and

the

fuel injectors

are

precisely

manufactured and

they

must receive clean diesel

fuel,

free

from water and

dirt.

To

ensure this

flow

of clean

fuel,

the

fuel

must

pass

through at least

two

fuel

filters,

a

fuel

filter/water

separator and the engine's spin-on

fuel

filter.

Visually

inspect,

clean, and change these

filters

according

to

the

maintenance

schedule in this manual.

FUEL

LIFT

PUMP

FILTER

To

ensure clean

fuel

into the

fuel

lift

pump,

there

is

a

small

in-line fuel

filter

connected

to

the

fuel

lift pump

elbow.

This

filter

should be replaced

every

200 hours of operation.

FUEL

FILTER

ASSEMBLY

ENGINE

FUEL

FILTER

Periodically check the

fuel

connections

and

the

bowl

for

leakage. Clean the filter element with kerosene

or

diesel

fuel

after the

first

50 hours

then

follow

the

MAINTENANCE

SCHEDULE

for cleaning and replacement.

Changing/cleaning

the

filter

element

1.

Shut off

the

fuel

supply.

2.

Unscrew

the

retainer ring

that

holds

the

filter

bowl

to

the

housing and allow

the

bowl

to

come

away

from

the

housing,

3.

Remove

and

replace

the

filter

element

and

clean

the

bowl.

4. Replace the sealing

"0"

ring

and

reassemble

the

bowl

to

the

housing. Thread

the

retainer

ring

on

carefully

so

as

not

to

cross thread.

When

retainer

contacts

the

"0"

ring,

tighten

114

-

112

turns

by

hand.

Open

the

fuel

supply

and

run the engine

to

inspect

for

leaks.

Engines

&

Generators

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