Operator`s manual
Oil Drain
Hose
An oil sump drain hose is installed on the engine with the discharge end secured by a bracket at the front of
the engine.
Oil may be drained from this hose by removing the cap and the discharge end of the hose from
the support bracket and lowering the hose into a container. The hose cap fitting
is
1/4 inch NPT (National
Pipe Tap) and can be extended
or
have a pump added, by the operator, for easier removal
of
the old oil,
if
desired.
Connecting
Pressure Sensing Devices
to
Oil Galleries
Oil
pressure sensing devices, such as senders and switches, must
not
be connected
to
an engine's oil gal-
lery with the use of extended nipples
or
tees. The reason
is
simply that continued engine vibration causes
fatigue
of
the fittings used
to
make such a connection. If these fittings fail, the engine loses its oil pressure
and quickly seizes.
When additional sensing devices such as switches
or
sensors need
to
be installed that function on engine
oil pressure, these devices
!11.LlS1
be bulkhead-mounted and connected to the oil gallery using an appropriate
grade of lubricating oil hose. Any fittings used
to
connect the hose to the gallery must be of steel or malle-
able iron composition. Brass must
not
be used for this application.
Sea Water Intake System
Make sure the
Intake system (sea water cooling system)
is
in
proper order. Check that the hull inlet,
sea
cock
and strainer are unobstructed. Sea cocks and strainers should be at least one size greater than the
inlet thread of the sea water pump. The strainer should be
of
the type that may be withdrawn for cleaning
while the vessel
is
at sea and should be mounted below the water line
to
ensure self-priming. I nspect the
sea water lines
to
make sure there are no collapsed sections, which would restrict water flow. Make sure
there are no air leaks at any
of
the connections.
Cooling
System
The generator's engine is fresh water-cooled by an
engine-
mounted heat exchanger. Sea water
is
used
as
the heat
exchanger's cooling medium.
Sea
water
is
pumped into the
exchanger by a sea water pump and
is
then injected into the
exhaust for discharge, carrying with it the heat removed from
the engine's fresh water cooling system.
Sea water should be supplied
to
the sea water pump through
a flush-type
through-hull fitting using a wire-reinforced hose
between the
through-hull fitting and the sea water pump. This
sea water should be directed through a visual-type
sea
water
strainer and then delivered
to
the pump. Hoses routed from
the
through-hull fitting
to
the strainer and
to
the sea water pump
should be wire-reinforced
to
prevent the hose from collapsing
during the generator's operation (suction from the pump may
collapse a non-reinforced hose).
Sea
water strainers should be
mounted
at
or below the water line to make sure the strainer
and line remains primed after shutdown.
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liB-in
iNCH
DEFLECT
ION
AT
LONliEST
SPAN
Westerbeke Generators