Installation manual

GENERATOR CONTROL PANELS
DESCRIPTION OF SWITCHES
This manually controlled ;;eries ofWESTERBEKE marine
diesel generators is equipped with toggle switches on the
engine control panel and, optionally, at remote panels.
All three switches are momentary contact type and serve the
following functions:
PREHEAT: The PREHEAT toggle switch serves two purposes:
preheating the engine for easy starting and defeating
of
bypassing the engine oil pressure switch. The defeat function
turns on the fuel solenoid,
instrument power and alternator
excitation.
When the
PREHEAT switch is depressed, the voltmeter,
·panel lights, gauges and meters and fuel solenoid will
activate.
START: The START toggle switch closes the Kl relay that
energizes the starter solenoid and activates the starter
..
While the PREHEAT switch is still depressed, depressing the
START switch engages the start solenoid. When the engine
begins to fire, the
START switch should be released. The
PREHEAt switch should not be released until the oil
pressure reaches 5 - 10 psi.
STOPPING: The STOP toggle switch is a normally closed
switch a
DC path through the three automatic shutdown
switches to the K2 run relay. Opening this switch termi-
nates this
DC path to the K2 run relay shutting down the
engine.
To stop the engine, simply depress the
STOP switch. The
DC path to the K2 run relay is terminated, de-energizing
the relay and the engine shuts down. The STOP switch
should
be held depressed until the generator shuts down
completely.
NOTE: When the engine is shut down, the water temperature
gauge and the oil pressure gauge will continue to register the
last temperature and oil pressure readings displayed. They
will return to zero once electrical
power is restored.
EMERGENCY STOP: The EMERGENCY
stop switch on the side
of the control hox
is normally closed. When depressed, it
will open the
DC circuit to the control
panel and shut the engine down. As the
switch is not toggled it can be used when
performing maintenance.
DESCRIPTION OF GAUGES
Coolant Temperature
Engine coolant (water) temperature should normally indicate
175° to 195° F
(80° to 90° C).
Engine Oil Pressure
Oil pressure (psi) may fluctuate depending on the generator
load but should range between between
30 to 60 psi.
DC Voltmeter
Indicates the amount the battery is being charged should show
13.5V to 14.4V.
Hourmeter
Registers elapsed time and is used as i guide for when to
perform scheduled maintenance.
REMOTE PANEL
For remote operation of the generator system, the same three
switches are used. The
PREHEAT and START switches are
connected in
parailel with the gauge panel's switches and
serve the same functions as in the gauge panel. The
STOP
switch is in series with the gauge panel's STOP switch and
serves the same function. There is a REMOTE
START/STOP
WIRING DIAGRAM in this manual.
NOTE: For additional information on Control Panels. Refer to:
STARTING/STOPPING PROCEDURE, DC WIRING
DIAGRAMS and TROUBLESHOOTING GAUGES.
Engines & Generators
6