Westerbeke 4.0Kw BCDB 50Hz Manual de instalación descargar pdf (Pagina 32)

ENGINE

TROUBLESHOOTING

The

tables

which

follow

indicate troubleshooting procedures

based upon certain problem indicators,

the

probable

causes

of

the

problems,

and

the

recommendations

to

overcome

these

problems.

Problem

Probable

Cause

Key

switch

on,

PREHEAT

switch

1.

Battery

Switch

not

on.

depressed:

no

panel

indications;

fuel

solenoid

or

electrical

fuel

pump

2.

Emergency

stop

switch

off.

2.

25-Amp

circuit

breaker

tripped.

3.

10-Amp

breaker

tripped

on

preheat

solenoid.

4.

Loose

battery

connections.

5.

Preheat

solenoid

not

operating.

START

SWITCH

DEPRESSED,

no

starter

1.

Connection

to

solenoid

faulty.

engagement.

2.

Faulty

switch.

3.

Faulty

solenoid.

4.

Loose

battery

connections.

5.

Low

batte

ry.

Note:

The

engine's electrical system

is

protected by a 25

amp

manual

reset

circuit breaker located

on

a bracket at

the

rear

of

the

engine.

The

preheat solenoid

is

close

by,

as

is

the

emergency

STOP

switch,

which

may

be

mounted

on

the

same

bracket or

on

the

back

of

the

instrument

panel,

depending

upon

the

generator

model.

Verification/Remedy

1.

Check

switch

and/or

battery

connections.

2.

Check

emergency

stop

switc~

position.

2.

Reset

breaker;

if

breaker

trips

again,

check

preheat

solenoid

circuit

and

check

circuit

for

shorts

to

ground.

3.

Check

voltage

at

and

after

breaker

on

preheat

solenoid.

4.

Check

(+)

connection

to

starter

solenoid

and

(-)

connection

to

engine

ground

stud.

Check

battery

cable

connections.

5.

Check

solenoid

"S"

terminal

for

voltage.

1.

Check

connection.

2,

Check

switch

with

ohmmeter.

3.

Check

that

12

volts

are

present

at

the

solenoid

connection.

4.

Check

battery

connections.

5.

Check

battery

charge

state.

START

switch

is

depressed;

panel

1.

Poor

connections

to

fuel

solenoid.

1.

Check

connections.

indications

OK;

starter

solenoid

OK

fuel

solenoid

not

functioning.

2.

Defective

fuel

solenoid.

2.

Check

that

12

volts

are

present

at

the

(+)

connection

on

the

fuel

run

solenoid.

Generator

engine

cranks,

but

does

not

1.

Faulty

fueling

system.

1.

Check

that

fuel

valves

are

open.

start,

fuel

solenoid

energized.

la.

Switch

to

combine

house

and

start

batteries.

1

b.

Replace

batteries.

2c.

Check

fuel

lift

pump.

2.

Preheat

solenoid

faulty.

2.

Check

solenoid.

Engine

can't

be

stopped.

1.

Faulty

DC

alternator.

1.

Remove

"Rn

connection

at

alternator,

repair

alternator.

Battery

rllns

down.

1.

Oil

Pressure

switch.

1.

Observe

if

gauges

and

panel

lights

are

activated

when

engine

is

not

running.

Test

the

oil

pressure

switch.

2.

High

resistance

leak

to

ground.

2.

Check

wiring.

Insert

sensitive

(0

-

.25

amp)

meter

in

battery

lines.

(Do

not

start

engine.)

Remove

connections

and

replace

after

short

is

located.

3.

Low

resistance

leak.

3.

Check

all

wires

for

temperature

rise

to

locate

the

fault.

4.

Poor

battery

connections.

4.

Check

cable

connections

at

battery

for

loose

connections,

corrosion

Battery

not

charging

1.

DC

charge

circuit

faulty.

1.

Perform

D.C.

voltage

check

of

generator

charging

circuit.

See

Testing

the

Battery

Charging

Circuit

in

this

manual.

Generator

engine

stops.

1.

Fuel

lift

pump

failure.

1.

Fuel

lift

pump

should

make

a

distinct

ticking

sound.

Replace

pump

with

spare.

2.

Switches

and/or

wiring

loose

2.

Inspect

wiring

for

short

circuits

and

loose

connections.

or

disconnected.

Inspect

switches

for

proper

operation.

3.

Fuel

starvation.

3.

Check

fuel

supply,

fuel

valves,

fuel

lift

pump.

4.

25

Amp

circuit

breaker

tripping.

4.

Check

for

high

DC

amperage

draw

during

operation.

Ensure

breaker

is

not

overly

sensitive

to

heat

which

would

cause

tripping.

5.

Exhaust

system

is

restricted.

5.

Check

for

blockage,

collapsed

hose,

carbon

buildup

at

exhaust

elbow.

6.

Water

in

fuel.

6.

Pump

water

from

fuel

tank(s);

change

filters

and

bleed

fuel

system.

,,,,.,,WESTERBEKE

I Engines & Generators

26

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