ONL843NW4 11/13
9
Control Panels
Figure 3-B:
Series 3 Generator Control Panel
Figure 3-A:
Series 1-B Generator Control Panel
Figure 3-C:
Series 4 Generator Control Panel
1. SHUTDOWN BYPASS-PREHEAT SWITCH
Two functions are built into this switch: the
preheating of the engine, and bypassing of the engine
safety shutdown circuit. Hold switch in the ON
position 10 - 20 seconds before starting the engine, and
continue holding on during engine cranking. Release
the switch as soon as the engine is running. Holding
the switch on too long can burn out the heater element.
2. ENGINE CONTROL SWITCH
To start the engine, hold this switch in the START
position until the engine is running.
After the engine starts, release the switch and it will
return to RUN position. To stop the engine, press the
switch in the STOP position and release. The engine
will stop.
NOTE: The rocker switch is used on Series 1 panels
only, and has a light that glows when the set is running.
3. HOUR METER
Keeps track of engine running time.
4. OIL PRESSURE GAUGE
Shows the oil pressure in the engine lubricating system.
5. ENGINE TEMPERATURE GAUGE
Registers the temperature of the engine coolant.
6. D.C. VOLTMETER
When the engine is stopped, the voltmeter indicates the
condition of the battery. When the engine is running, the
voltmeter indicates the voltage output of the alternator.
For Series 4 Control Panels Only:
7. A.C. VOLTMETER
Shows the generator output voltage.
8. FREQUENCY METER (Hertz)
The frequency meter indicates alternating current fre-
quency: 60 Hz (1800 RPM), or 50 Hz (1500 RPM).
9. AMMETER/VOLTMETER SELECTOR
SWITCH
Used to check voltage and current of each phase.
10. A.C. AMMETER
Shows the generator load on each phase. The phase is
selected with the Ammeter Selector switch (
Item 9
).
