Westerbeke 65A-FOUR - Page 101

EDE GENERATOR TROUBLESHOOTING
TESTING THE VOLTAGE
ATTACH THE NEGATIVE TEST LEAD
TO THE CASE (TO GROUND).
TO EXCITE THE GENERATOR
1. Lift the (DC+) yellow wire and the (DC-) blue wire off
the regulator. Attach the test leads to these wires as
shown: black to the blue wire, red to the yellow wire.
2. Connect the red test lead (+) to the battery voltage
(12VDC) at
the battery cable connection on the adjacent
starter motor solenoid.
3. Open
the generator's AC breaker. start the generator and
observe the AC output voltage between the line and
neutral (residual l5-20VAC).
THE POSITIVE TEST LEAD
TO THE BATTERY (f) TERMINAL
ON THE STARTER SOLENOIO.
-~AlI1mM,OTIr. VOLTAGE
-REGULATOR
4. Connect the black test lead (-) to the metal case (ground)
of
the generator. This will now put a 12VDC circuit
through the exciter stalor of the generator.
5. AC output voltage should be aboUl 30% higher lhan normal.
This indicates that the exciter stator, main rotor and stator
windings are OK.
6. Monitor the auxiliary circuit voltage inlo tile regulator,
correct vollage should be 220 - 230 VAC indicating this
circuit is ok.
...v- WESTERBEKE
Engines & Generators
89