Northern Lights M864W Operator's Manual - page 8
OM864W 09/07
8
Figure 4-B: Series 3 Generator Control Panel
Figure 4-A: Series 1-B Generator Control Panel
1. PREHEAT/ SHUTDOWN BYPASS
This switch serves two functions:
a. Preheats engine before beginning the starting
process. Press switch for 10-20 seconds before
attempting startup.
b. Bypasses the safety shutdown feature during
the starting process. Keep switch engaged while
starting engine, and for 2 to 3 seconds afterwards,
allowing oil pressure to build beyond shutdown
setpoint.
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, hold the
switch in the STOP position.
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. WATER TEMPERATURE GAUGE
Registers the temperature of the cooling water.
6. D.C.
VOLTMETER
When the engine is stopped, the voltmeter indi-
cates 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
frequency: 60 Hz (1800 RPM) or 50 Hz (1500
RPM).
9. AMMETER/VOLTMETER
SELECTOR
Used to check the voltage and current of each
phase. Return to “Amps Off” position when not
monitoring.
10. A.C. AMMETER
Shows the generator load on each phase. The
phase is selected with the Ammeter Selector
switch (
#9
).
Figure 4-C: Series 4 Generator Control Panel
Control Panels