Westerbeke 20B TWO Installation Manual download pdf (Page 54)

AND

TRANSMISSION

SAILING

OPERATION

The

transmission should be left in its NEUTRAL position

while sailing.

Leavi~g

the

transmission

NEUTRAL while

sailing alleviates unnecessary drag

the vessel because the

propeller

able

freewheel (spin). However, if the

transmission

left

its

FORWARD gear while sailing,

the

transmission will not

damaged. (Leaving the transmission

NEUTRAL

just good sailing practice).

COOLING

The

transmission

raw water-cooled. Raw water enters

the

transmission through a stainless steel inlet pipe located at

the

base of the bell housing. This water helps to cool·the

transmission's lubricating

oil.

CONTROL

BOX

BEll

HOUSING

BREATHER

COUPLING

COOLING

WATER

TRANSMISSIONS

SPECIFICATIONS

General

Gear

Ratio

(Standard~

Propeller

Shaft

(Direction

Rotation)

Propeller

lubricating

Oil

Transmission

Sump

Capacity

Case-hardened

helical

gears

with

intermediate

reverse

gear.

Reversing

out

servo

double

disc

system

2.47: 1

Right

handed

standard

transmission.

See

propeller

recommendation

chart

SAE

20W/20

SAE

exclusively

(Do

not

mix

grades

oil

use

multi

grades).

API,

CF,

CG-4,

SJ.

qts

liters)

SERVICE

any

seal

the transmission shows signs of leaking, have

the transmission looked

a qualified WES1ERBEKE

dealer.

This problem, especially concerning the rear

seal,

often contributed

improper alignment of

the

transmission's coupling and

the

propeller shaft's coupling.

Disassembly of the transmission

the

field

not recom-

mended.

overhaul or repair

needed, the work should

done

authorized WES1ERBEKE service

center.

MAINTENANCE

Transmission maintenance is minimal.

Keep

the exterior

housing clean, check the

fluid

level

part of your regular

routine,

and

change the

fluid

every 300 operating

hours.

Periodically inspect the

transmissio11.

and the cooler

for

leaks

and

corrosion. Make

_certain

the

air vent

clear

and

when

checking

the

fluid

level look

for

signs of water contamination

(fluid

will

appear

strawberry cream).

Lay-up/Winterize

Storage requires special care. Follow these procedures:

NOTE:

This operation will usually ocaur

when

the

engine

raw

water water cooling system

properly

winterized.

D Clean

the transmission and touch-up

any

unpainted

areas (use heat resistant paint).

D Fill the transmission with SAE 30 engine

oil

prevent

internal corrosion. (Extended storage

only,

months

more).

:::::J

Loosen attaching hardware from the transmission output

flange

and

propeller shaft coupling

flange

before

removing the boat

from

the

water.

Seperate

the

flanges

and spray with lubricant.

[]

Inspect

the

gear shift cable, linkage, and attachments.

Look

for

corrosion of the end fittings, cracks or cuts

the conduit, and bending of the actuator rods. Lubricate

all

moving parts.

NOTE:

the

transmission

stored for a

long

time

(twelve months or

more),

it should be topped offwith oil

prevent internal

corrosion.

Reduce

the

oil level

before

putting

the

engine

back into service.

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Westerbeke 20B TWO Installation Manual Page 54

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