Westerbeke 20.0KW sbeg Specifications download pdf (Page 51)

PROBLEM

ELECTRICAL

TROUBLESHOOTING

CHART

The following lesl procedures will require lhe use

a mullimeler

and

Ihe

engine~

wiring diagram (in Ihis manual). Also refer

Ihe relay lesling

page. WESTERBEKE recommends lhat these lesls be performed by a

qualified

technician.

CAUTION:

When

servicing

replacing

components,

tum

off

the

amp

circuit

breaker.

TESTING

INSPECTIONISOLUTION

(12

VDC

battery

vol/;Jge

measured

ground)

Engine

does

not

crank

......

Test

for

B+

(12v)

the

circuit

breaker

the

board

terminal

T4.

Check

for

bad

connections

the

engine

harness

connector

PI,

the

#14

red

wire,

the

battery

the

starter.

Check

the

connections

the

board

terminal

and

the

circuit

breaker

•

Test

for

B+

(12v)

the

circuit

breaker

the

panel

fuse

end

and

the

board

terminal

11.

•

Test

for

B+(I2v)

from

the

fuse

end

the

board

terminal

T2.

•

Test

for

B+(12v)

the

crank

relay

terminal

30.

•

Test

for

B+

(12v)

the

start/stop

switch

terminals

and

10.

•

Test

for

B+

(12v)

the

start

switch

terminal

when

the

switch

activated.

•

Test

for

B+

(12v)

crank

relay

Kl.

terminal

86.

OK.

"OK.

Testlor

B+(12v)

crank

relay

terminal

85.

Activate

the

start

switch

and

after

few

seconds

the

voltage

should

drop

below

volts.

OK.

Activate

the

start

switch,

after

4-5

seconds

B+(12v)

should

present

terminal

relay

Kl.

•

Look

for

bad

connection

from

the

circuit

breaker

the

fuse

the

board

terminal

T1.

Replace

the

circuit

breaker.

Inspect

the

connections

the

fuse

board

terminal

T2.

Replace

the

fuse.

Check

for

bad

connection

the

engine

harness

connector

PI,

#3.

Check

the

voltage

terminal

#30

the

Kl,

K2,

and

relays.

Look

for

bad

connections

the

panel

connector

52,

whitelblack/red

wire

the

terminal

board

the

start/stop

switch

terminals

and

10.

Replace

the

start

switch.

Check

bus

fuse

amp).

Inspect

for

bad

connection

relay

terminal

orange

wire

ECU

connector

J2,

Look

for

bad

connection

relay

Kl.

Activate

the

start

switch,

after

4-5

seconds

check

for

Look

for

bad

connection

crank

relay

Kl,

B+(12v)

the

start

solenoid.

terminal

orange

wire

the

ECU

•

connector

J2,

#8.

Inspect

the

starter.

Check

the

connections

crank

relay

terminal

87,

yellow/red

wire

the

start

solenoid.

WESTERBEKE

Engines

Generators

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Westerbeke 20.0KW sbeg Specifications Page 51

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