Westerbeke 12.0KW - 50Hz EDT Installation Manual download pdf (Page 37)

STARTER

MOTOR

DESCRIPTION

The starter is a

new

type,

small,

light-weight and is called a

high-speed internal-reduction

starter.

The pinion shaft is

separate

from

the

motor

shaft;

the

pinion

slides only

on

the

pinion

shaft.

A reduction gear

is

installed

between the motor

shaft

and

a pinion

shaft.

The

pinion

sliding part

is

not

exposed outside the starter so that

the

pinion

may

slide

smoothly without becoming

fouled

with

dust

and

grease. The

motor shaft

is

supported at

both

ends

on

balt bearings. The

lever

mechanism,

switch

and

overrunning

clutch inner circuit

are identical

to

conventional

ones.

TERMINALS

__

-r

MOTOR

TYPICAL

STARTER

MOTOR

REFER

TO

THE

WIRING

DIAGRAM

IN

THIS

MANUAL

TROUBLESHOOTING

SOLENOID

it.

WARNING:

The

following

emergency

starting

procedures

must

not

be

used

with

gasoline

engines.

Sparks

could

cause

an

explosion

and

fire.

Prior

to

testing,

make

certain

the

ships

batteries

are

at full

charge

and

that the starting

system

wiring

connections

(terminals)

are

clean

and

tight.

Pay

particular attention to

the ground wire connections on

the

engine

block.

To

check the

wiring,

try cranking

the

starter for a

few

seconds, never

more

than

10

seconds

at a time, then run your

band along the

wires

and

terminals

looking for wann spots

that indicate resistance. Repair or

replace

any

trouble spots.

Using a

multimeter,

test the

voltage

between the positive

terminal stud on

the

start

solenoid

and

the engine block

(ground).

If

you read

12

volts, the starter

is

faulty.

SOLENOID

/

'IGNITION

TERMINAL

I~"""""---(M)

TERMINAL

To

test the ignition circuit, locate

the

ignition(s)

terminal

(it

is one of

the

small

terminal

studs

and

is

wired

to

the

ignition

circuit).

Use a

screwdriver,

don't

touch

the

blade,

to jump

from

that ignition

terminal

to

the positive

battery

connection

tenninal

on

the

solenoid.

If

the starter cranks, the fault

lies

with the ignition

circuit.

If

the solenoid clicks but nothing happens, the starter

motor

is probably faulty.

SOLENOID

IGNITION

TERMINAL

~

If

nothing happens

at

all, the solenoid

is

not getting

current..

Check

the

battery

isolation

switch

and

inspect

the

wiring

connections.

it

is

also

possible

that

the

solenoid

is

defective.

it.

WARNING:

There

will

be

'arching

and

sparks

will

fly

when

jumping

terminals.

Be

certain

the

engine

space

is

free

of

potentially

explosive

fumes,

especially

gasoline,

and

that

there

are

I!D.

flammable

solvents

or

materials

stored

nearby.

Engines & Generators

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