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GENERATOR CONTROL PANELS
DESCRIPTION OF SWITCHES
This manually controlled series of WES1ERBEKE marine
diesel generators is equipped wi1h toggle switches on 1he
engine control panel and, optionally, at remote panels.
All three switches are momentary contact type and serve 1he
following functions:
PREHEAT: The PREHEAT toggle serves two purposes:
preheating the engine for easy starting and bypassing the
engine oil pressure switch. The PREHEAT function closes
the K2 relay. as well as supplies current to the fuel" solenoid
pull
coil.
When the PREHEAT switch is depressed, the voltmeter,
panel lights, gauges and meters and the hold coil of the fuel .
solenoid.
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.
STOP: The STOP toggle switch is a normally closed switch
providing power to the K2 relay. Opening of this switch
opens the power circuit to the fuel solenoid, stopping the
flow of fuel to the engine and shuts down 1he engine.
To stop 1he engine, depress 1he STOP switch. When the
STOP switch is depressed, the
powe~
feed to the fuel sole-
noid is opened, and the fuel flow to the engine is stopped.
The STOP switch should
be
depressed until the generator
stops rotating
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 1he side of the control box,
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
0
to 195
0
F
(80
0
to
90
0
C).
Engine Oil Pressure
Oil pressure (psi) may fluctuate depending on the generator
load but should range
be~een
35 to 55 psi.
DC Voltmeter
Indicates 1he amount the battery is being charged should show
13Vto 14V.
Hourmeter
Registers elapsed time and is used as a 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 parallel with the gauge panel's switches and
serve the same functions as in the gauge panel. The STOP
switch is in series wi1h the gauge panel's STOP switch and
serves the same function. There is a REM01E START/STOP
WIRING DIAGRAM in this manual.
GENERATOR
RELEASE
STARTER
PREHEAT
MUST
~
PRESS
r~)
1ST
~
6i
1
STOP
START
{
~~
PRESS
,{1ft)
2 ND
WESTERSEKE
NOTE: For additional infonnation on Control Panels. Refer to:
STARTING/STOPPING PROCEDURE, DC WIRING
DIAGRAMS
and
TROUBLESHOOTING GAUGES.
Engines & Generators
6
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Table of Contents
Troubleshooting
