Westerbeke 20B TWO Manual de Instalação Página 11

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DIESEL
FUEL,
ENGINE
OIL
AND
ENGINE
COOLANT
DIESEL
FUEL
USE
A
DIESEL
FUEL
WITH
A
CETANE
RATING
OF
#45
OR
HIGHER.
(No.
2-D
(SAE
J313)
diesel
fuel
according
to
ASTM
D975).
Care
Of
The
Fuel
Supply
Use only clean diesel fuel! The clearance
of
the components
in your fuel injection pump is very critical; invisible dirt
particles which might pass through the filter can damage
these finely finished parts.
It
is important to buy clean fuel,
and keep it clean.
The
best fuel can be rendered
unsatisfactory by careless handling
or
improper storage
facilities. To assute that the fuel gping into the tank for your
engine's daily use is clean and pure, the following practice is
advisable:
,,
r;'
'
Purchase a well-known brand
of
fuel.Install and regularly
service a good, visual-type fuel filter/water separator between
the fuel tank and the engine. The Raycor
500
MA
or 230
RMAM
are good examples
of
such filters.
ENGINE
OIL
Use a heavy duty engine oil with an API classification
of
CF,
CG-4, CH-4 or CI-4. Change the engine oil and filter after an
initial
50 hours
of
break-in operation. Then follow the oil and
filter change intervals as specified
in the
MAINTENANCE
SCHEDULE
in this manual. Westerbeke Corporation does
not approve
or
disapprove
of
the use
of
synthetic oils.
If
synthetic oils are used, engine break-in must be performed
using conventional oil.
Oil change intervals must be as in the
MAINTENANCE
SCHEDULE,
not extended because
synthetic oils are used.
SAE
OIL
VISCOSITY
GRADES
For
all
temperatures
use
SAE
10W-30
or
15W-40.
A
CAUTION:
Do
not
allow
two
or
more
brands
of
engine
oil
to
mix.
Each
brand
contains
its
own
atJditives;
additives
of
different
brands
could
react
in
the
mipure
to
produce
properties
harmful
to
your
engine.
,.,>
OIL
PRESSURE
The engine's oil pressure, during operation, is indicated
by the oil pressure gauge
on
the instrument panel. During
nonnal operation, the oil pressure will range between
35
and
65
psi
2.5
and
3.9
kg/cm
2
).
NOTE:
A newly started, cold engine can have an oil pressure
reading upwards
of
60 psi ( 4.2 kg/cm
2
l.
A warmed engine can
have an oil pressure reading as low as 25
psi
(1.8 kg!cm
2
l.
These readings will vary depending upon the temperature
of
the engine, the load placed on the engine, and the RPM's.
ENGINE
COOLANT
'WESTERBEKE recommends a mixture
of
50% antifreeze
and
50% distilled water. Distilled water is free from the
chemicals that can
cmrode internal engine surfaces.
The antifreeze performs double
duty.
It
allows the engine to
run at proper temperatures by transferring heat away from
the engine to the coolant, and lubricates and protects the
cooling circuit from rust and conosion. Look for a good
quality antifreeze that contains Supplemental Cooling
Additives
(SCAs) that keep the antifreeze chemically
balanced, crucial to long term protection.
The distilled water and antifreeze should be premixed before
being poured into the cooling circuit.
PURCHASING
ANTIFREEZE
Rather than preparing the mixture, WESTERBEKE
recommends buying the premixed antifreeze so that so that
when adding coolant the mixture will always be correct.
There are two common types
of
antifreeze, Ethylene Glycol
(green) and Propylene Glycol (red/purple), either can
be
used
but do not mix the two and
if
changing from one to another,
flush the engine thoroughly.
Premixed
antifreeze
for
DIESEL
Engines:
Specification
#ASTM
D53456.
MAINTENANCE
Change the engine coolant every five years regardless
of
the
number
of
operating hours as the chemical additives that
protect and lubricate the engine have a limited life.
COOLANT
RECOVERY
TANK
A coolant recovery tank kit is supplied with each
engine
or
generator.
The
purpose
of
this recovery tank is to
allow for engine coolant expansion and contraction
duting
engine operation, without the loss
of
coolant and without
introducing air into the cooling system. This kit is provided .
:..nd
must be installed before operating the engine.
Engines
&
Generators
5
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