Installation manual
ENGINE
ADJUSTMENTS
NOTE:
WESTERBEKE
recommends
that
the
following
engine
adjustments
be
performed
by
a
competent
engine
mechanic.
The
i"riformation
below
is
provided
to
assist
the
mechanic.
GENERATOR
FREQUENCY
ADJUSTMENT
(HERTZ)
Once the diesel generator set has been placed in operation,
there may be adjustments required for engine speed (Hertz)
during the engine's break-in period (first
50
hours)
or
after
this period. A no-load voltage adjustment may also be
required in conjunction with the engine's speed adjustment.
These are not warrantable adjustments as they relate to
normal break-in and maintenance.
Frequency is a direct result
of
engine/generator speed, as
indicated by the following:
When the generator is
run
at
1800
rpm,
the AC voltage
output
frequency is 60 Hertz.
When the generator
is
run
at
1500
rpm,
the AC voltage
output
frequency is 50 Hertz.
Therefore, to change the generator's frequency, the engine
speed
must be changed. To accomplish the frequency
change, perform the following:
1. With the engine stopped, connect the AC output leads to
the AC terminal block in accordance with the voltage
connection diagram shown here.(This diagram is also
affixed inside the control box).
230V
50Hz
120V
60Hz
1201240V
60Hz
'23456
2.
Start
the engine and adjust the engine's speed to obtain
the frequency corresponding to the voltage selected by
adjusting the stop bolts and positioning the throttle arm
against these stop bolts to either increase
or
decrease
engine no-load speed to adjust the Hertz produced.
3. To arrive at the
"appropriate frequency, either monitor
the
spt<ed
of
the engine/generator with a tachometer, or
monitor the frequency with a frequency meter, the latter
method being the more precise
of
the two.
"
i
THROTTLE
CONTROL
LEVER
'
FUEL
RUN
SOLENOID
The fuel run solenoid is mounted
in
a threaded hole
on
the engine's block
just
aft
of
and
below the engine's fuel
injection pump. Proceed as follows
when
installing a
replacement
or
new fuel run solenoid.
1. Visual access
to
the fuel injection pump's fuel rack is
needed. To obtain this, remove the small square side
cover and gasket
just
below the fuel injection pump.
2. Thread the locknut onto the solenoid and then apply a
small amount
of
Teflon sealant to the threads
on
the
solenoid.
3. Thread the solenoid into the hole
on
the engine and
observe the solenoid plunger through the cover opening.
Allow the plunger
to
contact the fuel rack and move fully
into the injection pump.
Do
not
thread further so as to
push the plunger into the solenoid.
4. Back the solenoid out
114
-
112
of
a turn and secure it in
position with the locknut.
5. Properly connect the three electrical leads from the
solenoid. Two
of
the connections plug into the engine
harness and the third grounds to the engine block at an
adjacent inboard threaded hole with a 8mm bolt.
6. Reassemble the cover and gasket and test run the unit.
Make certain that the unit stops when the solenoid is
de-energized.
" ,
I
mOM
FUEl
FlLTER~
I
I'
Engines & Generators
31