Operator`s manual
LUBRICATION
SYSTEM
Engine Oil
For engine lubrication, use lubricating oil designated for diesel service. These oils are classified
according to the API specifications into service grades CA, CB, CC and CD. The use
of
CCor higher
(CD) grades made
by
well-known manufacturers
is
recommended. The oil selected should be used
thereafter.
Engine
Oil Viscosity (SAE Number)
Use oil having a viscosity best suited to the atmospheric temperature. Use
of
an all-season oil SAE 10W-
30 with minimum viscosity change under different temperatures is suggested.
Atmospheric Temperature
68° F (20°C) or higher
41° F (5° C) - 68° F (20° C)
41° F (5° C) - or lower
Viscosity
SAE 30 or lOW - 30
SAE 20
or lOW - 30
SAE
lOW
- 30
NOTE:
Do not use engine lube oil with an SAE number greater than
30
in generator engines.
Oil
Pressure
The engine's oil prcssure is indicated
by
the oil pressure gauge.
During normal operation, the engine's oil pressure will range between
35
and 70 psi (engine hot).
NOTE: A newly started, cold cngine can have
an
oil pressure reading upwards
of
60 to
80 psi. A warmed engine can have an oil pressure reading as low as
35
psi. These
readings may also vary depending upon the load that is placed on the generator.
Your generator set is fitted with an oil pressure switch.
Should your engine's oil pressure drop below a
safe operating pressure, the switch will open and shut the engine
OFF
to
prevent any internal damage
to
your generator's engine from occurring.
Engine
Oil Change (to include filter)
1.
Draining the Oil Sump
Discharge the old oil through the sump drain hose (attached at the front
of
the engine) while the engine is
still warm. Drain the old oil completely, replace the hose in its bracket and replace the end cap securely.
Always observe the old oil as it is removed. A yellow/gray emulsion indicates the presence
of
water in the
oi!.
Although this condition is rare, it does require prompt attention to prevent serious damage. Call a
competent mechanic should water be present in the oi!.
Sea water present in the oil can be the result
of
a
fault in the exhaust system attached
to
the engine andlor a syphoning through the sea water cooling circuit
into the exhaust, filling it up into the engine (refer
to
the installation illustrations in this manua!.)
WESTERBEKE
GENERATORS
58