Westerbeke BTD 10.0 KW 60Hz Installation Manual download pdf (Page 39)

ENGINE

ADJUSTMENTS

DRIVE

BELT

ADJUSTMENT

Proper inspection, service and maintenance of the

drive

belts

important for the efficient operation of your engine (see

Drive Belts under MAINTENANCE SCHEDULE).

Drive

belts

must be properly tensioned. Loose

drive

belts will

not provide proper alternator charging and will eventually

damage the alternator.

Drive

belts that are too tight will pull

the

alternator out of alignment and/or cause the alternator

wear out prematurely. Excessive

drive

belt tension can also

cause

rapid

wear of

the

belt and reduce

the

service life of

the

fresh water pumps bearing. A slack belt or the presence

oil

the belt can cause belt slipping, resulting

high

operating

temperatures.

The

drive

belt

properly adjusted

the

belt can

deflected

less than

3/8

inch (lOmm) and

more than

112

inch

(12mm)

the belt

depressed with the thumb

the mid-

point between

the

two

pulleys

the longest span of the belt.

A spare belt or belts should always be carried on board.

WARNING:

Never

attempt

check

adjust

the

drive

belt's

tension

while

the

engine

operation.

Adjusting

Belt

Tension

Loosen

the

alternator adjusting strap bolt and

the

base

mounting bolt.

With

the

belt

loose,

inspect

for

wear,

cracks

and

frayed

edges.

3. Pivot

the

alternator

the

base mounting bolt

the

left

or right

required,

loosen or tighten.

Tighten

the base mounting bolt

and

the adjusting strap

bolt.

Run

the engine

for

about 5 minutes, then shut

down

and

recheck the belt tensions.

ENGINE

SPEED/ENGINE

SHUTDOWN

Generator frequency (hertz) is a direct result of engine speed.

The engine speed throttle adjusting screws have been pre-set

the

factory.

fuel

shut off solenoid, located at

the

injection pump, shuts

the generator

down

when the control panel toggle switch

depressed. This solenoid

pre-set at the

factory.

ELECTRONIC

GOVERNOR

(OPTIONAL)

The Electronic Governor regulates

the

engine speed

sensing

the

engine's RPM with a magnetic pick-up

the

flywheel.

The governor's controller continuously monitors

the

engines speed

and

if there

any

discrepancy,

the

controller signals

the

actuator

and

the

actuator adjusts

the

engine to the desired speed electronically.

Actuator

The following instructions are

for

adjusting

replacing

the actuator.

Shut-off

the

power

the

g~nerator.

Disconnect

the

actuator

wires

from

the

wiring

harness.

3. Measure the distance between

the

actuator and

the

engine

mounting surface

shown.

ACTUATOR

MEASURE

FOR

REFERENCE

ENGINE

MOUNTING

SURFACE

'JAM

NUT

4. Back-off

the

7/16"

jam nut

and

unscrew

the

actuator.

5. Apply a small amount of teflon sealant

the

replacement

actuator

and

screw

the

actuator

into

the

engine's

mounting boss. Maintain the same distance between

the

actuator and the engine mounting surface

previously

measured Secure the actuator's position with the jam

nut.

(The standard distance is 13/16"

7/8").

Reconnect

the

actuator wires and test

the

unit.

SCREWINTO

ORIGINAL

MEASURE

SPEED

ADJUSTMENT

[FACTORY

SET]

13/16"

7/8"

STANDARD

Note:

the unit does not shut down properly when

. testing. Loosen the jam nut and turn the

actuator in

lIS-lf4

a turn until proper shut

dmvn

is achieved.

FUEL

SHUT

OFF

SOLENOID

Engines & Generators

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Westerbeke BTD 10.0 KW 60Hz Installation Manual Page 39

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