Westerbeke 4.0Kw BCDB 50Hz Installationshandbuch PDF herunterladen (Seite 13)

STARTING/STOPPING

PROCEDURE

THE

STARTING

SYSTEM

Westerbeke diesel generators use electric starters assisted by

glow plugs for both normal and cold weather starting.

The

illustration below shows a cross-sectional view of one cylin-

der. The glow plug

located in the combustion chamber so

that its tip is

the injector nozzle's spray path. When the

glow plug is energized by the

PREHEAT button, the plug

glows red at the tip and assists in igniting the fuel. The result

is a rapid start with less wear on the starter.

This system is common to WESTERBEKE diesels. The start

circuitry is designed so that the

PREHEAT button must be

depressed for the time specified in the preheat chart. Then,

while keeping the

PREHEAT button engaged, the START

button

is depressed to crank the engine.

NOTE:

The START switch will not energize unless the PRE-

HEAT

switch is depressed. Depressing the

PREHEAT

switch

activates the glow plugs in the cylinder head so use the

PRE-

HEAT

intermittently to avoid overheating the glow plugs.

GLOW

PLUG

PREHEAT:

Depress the PREHEAT switch. The voltmeter and

panel lights, gauges and meters will be activated. The

PRE-

HEAT switch should be depressed in accordance with the

following chart:

Temperature/Preheat

Atmospheric

Temperature

Preheating

Time

+41°F(+5°C)

higher

Approx.

seconds

+41°F(+5°C)

23°F

(-5°C)

Approx.

seconds

+23°F(-5°C)

lower

Approx.

seconds

Limit

continuous

use

seconds

before

cranking

START:

While still depressing the PREHEAT switch, depress

the START switch. This will engage the starter solenoid.

Upon engine starting, release the START switch. Do not

release the

PREHEAT switch until the oil pressure reaches

15 psi. Then as long as the high water temperature and low

oil pressure protective circuits do not activate, the engine will

remain energized and continue to run.

NOTE:

When starting:

A voltage drop will occur

when the preheat switch

depressed.

Should the engine not start when the START switch

depressed for 10 to 20 seconds, release both switches and

wait

30 seconds; repeat the procedure above and preheat

longer.

Never

run

the

starter

for

than

seconds.

CAUTION:

Prolonged

cranking

intervals

without

the

engine

starling

can

result

the

engine

exhaust

system

filling

with

raw

water.

This

may

happen

because

the

pump

pumping

raw

water

through

the

raw

water

cool-

ing

system

during

cranking.

This

raw

water

can

enter

the

engine's

cylinders

way

the

exhaust

manifold

once

the

exhaust

system

fills.

Prevent

this

from

happening

closing

the

raw

water

supply

through-hull

shut-off,

draining

the

exhaust

muffler,

and

co"ecting

the

cause

the

excessive

engine

cranking.

Engine

,damage

result-

ing

from

raw

water

entry

not

warrantable

issue;

the

owner/operator

should

keep

this

mind.

Remote

Starting

Procedure

The remote start panel is the same as the engine-mounted

start panel except that it has a green LED light and no

gauges. When starting at a remote location, the green LED

lights when the generator is running at approximately

600

rpm. This indicates when the START switch can be released

since the starting

the generator may not be audible.

A When the

PREHEAT switch is depressed at the remote

start/stop panel the LED light will illuminate. When the

START switch is depressed and the starter cranks the

engine this LED light will dim. When the engine starts the

LED light will brighten signaling

release the START

switch. Continue to hold the

PREHEAT depressed for a

few seconds to allow oil pressure to build up which closes

the oil pressure safety switch that is in the series path for

12V B+ to the fuel run solenoid.

After the generator is started and the START switch is

released, the generator's starter will not crank unless the

PREHEAT switch is operated first because this switch

supplies voltage to the START switch.

Once the engine starts, check the engine's instruments for

proper oil pressure and battery charging voltage. Apply a

light load to the generator

and allow the engine's operating

temperature tq come up to

140-150° (60-66°

before

applying heavy loads.

NOTE:

Some unstable running

may

occur in a cold engine.

Depressing the PREHEAT switch for 10-15 second intervals

will help stabilize the engine

RPM

until the operating

temperature reaches the

140

-150°

F and a load is applied

the engine.

Engines

Generators

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 50 51

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