Operator`s manual
FUEL
SYSTEM
The generator must have its own fuel supply line; in other words, it must have its own pickup tubes and
primary filter/water separator.
DO NOT
TEE
OFF
OF
ANOTHER ENGINE'S
FUEL
SUPPLY. The
fuel system should
be
installed
in
such a manner as to allow the engine-mounted fuel lift pump to
maintain a positive iulet pressure to the injection pump under all operating conditions. The minimum
size of the fuel supply line and fuel return line
is
114
inch, inside diameter, and there should be a primary
fuel filter installed between the fuel tank and the
fuel
lift pump. Only one fuel filter is installed on the
engine, between the fuel tank and the fuel lift pump.
Only one filter is installed on the engine, between
the fuel lift pump and the injection pump; this filter has a replaceable element.
The fuel tank's fuel pick
up
tube should be clear and unobstructed.
No
screens or gauze strainers should
be incorporated in the fuel pickup tube. Make sure the fuel supply and return lines are secureley anchored
to prevent chafing and that all fittings are sufficiently tightened to prevent leakage. Also, make sure your
fuel system has a positive shut
-off
valve; kuow its location and how it operates. Do not use a mechanical
check valve for this function.
It
is recommended that an approved filter/separator be used in the fuel supply between the fuel tank and
the generator's engine to help remove contaminants
in
the fuel before the fuel reaches the engine-mounted
fuel lift pump and injection pump.
The fuel return at the tank should extend down into the tank in the same manner as a pickup tube. This
practice is particularly important in installations where fuel tanks are installed below the engine's fuel
system and will help prevent air from entering the fuel system when the engine is shut down. Ensure that
the fuel tank filler is properly sealed to prevent water entry should it become awash. The fuel tank's vent
should be located
so
that its discharge route cannot allow water to enter through
to
the fuel tank(s).
Moisture must no be allowed to accumulate in the vent's line.
Be sure that there is a fire
e>.1inguisher
installed near the unit and that is properly maintained. Be
familiar with its
use.
An
extinguisher with the NFP A rating of
ABC
is
appropriate for all applications in
this
environment.
OIL
DRAIN
An
oil
sump drain hose
is
installed on the engine with the discharge and 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
114
inch NPT and
can
be
extended, or have a pump added, 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 no be connected to an engine's oil gallery
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 during engine operation,
lubricating oil will be lost and internal engine damage will result.
When additional sensing devices such as senders and switches need to
be
installed, these devices must 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
oil
gallery must
be
of steel or malleable iron composition.
Brass
must
not
be
used
for
this application.
WESTERBEKE
GENERATORS
20