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Be GENERATOR SINGLE PHASE
NOTE: WESTERBEKE re.commerufs that the following generator tests
and adjustments be peiformed
by
a qualified technician.
SINGLE EXCITER NO-LOAD VOLTAGE ADJUSTMENT
1. Remove the louvered metal plate, at the back of the
generator, covering the AC tenninal connections and
the capacitor(s).
2. Start the generator and allow it to run for approximately
five minutes so the engine can wann up. Make sure the
generator is operating without any equipment drawiug AC
current from the generator (that is, shut off all electrical
~ppliances).
Make sure the engine's speed (Hertz) is
. correct. Adjust the governor as needed to obtain the
correct engine speed before proceeding.
3. Refer to the AC load connections diagram for the correct
configuration then check the generator's no-load voltage
by measuring the voltage across the neutral lead and the
hot lead with a volt meter. Make sure you record this
reading. The generator's no-load voltage is 115 - 124 volts
at 60.5 - 61.5 Hertz. If the voltage output is higher or
lower than specified, proceed.
4. Shut off the generator. Make sure the 60Hz Hertz lead is
plugged into the capacitor.
A
WARNING:
CapaCitors must be discharged before
handling
as
they stote electricity and can pack a poten-
tial/y lethal charge even when disconnected from their
power source.
NOTE: Simply cross the capacitor's two terminals with an
insulated (plastic handle) screwdriver. This will discharge
any excess electricity.
A
WARNING:
Do
not attempt to make a no·load
voltage adjustment while the generator is operating.
The capacitor can produce
a
400-500 volt charge.
Touching any wiring can produce a severe electrical
shock. In addition, attempting to make
a
no-load
voltage adjustment while the generator is operating .
could cause your fingers to be caught in the generator's
rolllr.
S. There are three plugs grouped for the right capacitor ter-
minal, #7, #8, and #9. If the generator's no-load voltage is
low, then disconnect the lower numbered plug and coo-
nect the plug with the next higher number. If the genera-
tor's oo,load voltage is high, then disconnect the higher
numbered plug and connect the plug with the next lower
number. Note that the plug presently connected to this
terntinal may be anyone of the three plugs available.
6. If the generator's no-load voltage cannot be adjusted
because the voltage needs to be increased and the highest
numbered plug is already connected to the right terntinal,
or the voltage needs to be lowered and the lowest num-
bered plug is connected, refer to the WESTERBEKE BC
Generator Troubleshooting Guide).
A
WARNING:
Make cerlain th';
ins~/ating
covers on the unused leads are in place and
are NOT in contact with each other
Dr
In contact
. with the generator's housing.
NOTE: THE #7 WIRE IS
SHOWN CONNECTED AS A
DEMONSTRATION OF HOW
THESE CONNECTIONS CAN
BEMADE.
BC' GENERATOR BACK END SHOWN
120V/6DHz
/
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. AC TERMINAL
BOARD
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/
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SINGLE EXCITER CIRCUIT
See the ENGINE ADJUSTMENT section in this manual for
ADJUSTING THE ENGINE SPEED.
REFER TO THE FOLLOWING PAGE FOR
lit..
AC TERMINAL BLOCK CONNECTIONS . ,
Engines & Generators
37
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Troubleshooting
