Northern Lights and NL1066H3 Operator's Manual - page 16
ONL2-2 7/13
14
Operating
1.Check Gauges Often: Oil pressure must be above
29 PSI (if not above 15 PSI within 5 seconds of
starting, the engine should be stopped and the
problem should be explored). Normal oil pres-
sure is 50 PSI at rated load speed (1800 to 2500
RPM). Oil temperature should be 115
0
C (240
0
F) for
normal operating temperature. Coolant temperature
should be 82 - 94°C (180 - 202°F) for electronically
controlled fuel systems, 90 -100°C (194 -212°F)
for mechanically controlled fuel systems. The D.C.
voltmeter should read between 13 and 14 volts (26-
28 volts, 24 volt systems).
2. Check AC voltage and frequency meters (Series 4
Panel). If gauges deviate from normal levels, shut
down the set and investigate.
3. Check belt for good alignment.
4. Let the unit run unloaded for a three to fi ve minute
warm-up period before applying load.
5. Do not add full electrical load until engine is at
maximum operating temperature.
6. If the air temperature is below -10°C (14°F) use an
engine block heater.
Shutdown
1. Turn the Engine Control Switch to the OFF position.
2. Close the fuel valves, and put the battery switch
in the OFF position if the unit will be off for an
extended period.
Do not turn the battery switch to OFF while the
engine is running.
SHUTDOWNS AND ALARMS
1. Your unit is fi tted with a system to protect it from
high water temperature or low oil pressure.
a. Generator sets have shutdown systems to stop the
engine. They have no warning horns.
b. Other alarms and shutdowns are available as
optional
equipment.
NOTE: Do not rely on your warning or shutdown
system to the exclusion of careful gauge monitoring.
Watching your gauges can prevent damage to the unit
and dangerous power losses.
2. Do the following when your shutdown system is
activated:
a. Check the coolant temperature gauge. If the
temperature is above 205°F (97°C), shut off the
engine
immediately.
Operating Procedures
BEFORE STARTING
1. Check the water level by removing the pressure
cap from the expansion tank. In order to give the
cooling water room to expand, the level should be
about 1 3/4 in. (4-5 cm) below the fi ller cap sealing
surface when the engine is cold. When fi lling with
coolant, the venting cock on top of the turbocharger
should be opened to ensure that no air pockets form
in the cooling system.
Use protective clothing and open
the fi ller cap carefully when the engine is warm
to prevent burns.
2. Check the oil level in the crankcase with the dipstick.
The oil level should be in the “waffl ed area” or on or
below “full”. Always add the same viscosity of oil
as is already in the crankcase.
3. Check the fuel tank level and open any fuel valves.
4. Disengage clutch, if equipped.
5. Close the seacock, check and clean the strainer and
reopen the seacock.
6. Place the battery switch in the ON position.
NOTE: The battery switch must always be kept ON
while the engine is running. If the switch is turned
OFF while the engine is running, the battery charging
regulator could be ruined.
Starting
1. While holding the Shutdown Bypass switch in the
ON position, push the Engine Control switch to the
START position.
2. As soon as the engine starts, release both switches.
Do not crank the starter for more than 20 seconds.
3. If the engine fails to start the fi rst time, be sure the
starter has stopped before re-engaging.
4. Operate engine at or below 1200 RPM with no-
load for 1 to 2 minutes to ensure proper lubrication.
When operating at below freezing temperatures
extend this period to 2 to 4 minutes.
NOTE: If there is a governor locked at a specifi c
speed on the generator set, there may not be a slow
idle function, so in that case operate the engine at
high idle for 1 to 2 minutes before adding load. If
the stand-by generator set is loaded as soon as it
reaches rated speed, this procedure would not apply.
revised 2-24-12