Northern Lights NL673L, Operator'S Manual

Page: 16 / 40

ONL673L 7/13
14
Operating Procedures
SHUTDOWNS AND ALARMS
1. Your unit may be fi tted with a warning horn 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 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 warning or shutdown
system is activated:
a. Check the temperature gauge.
If above 230°F (110°C), shut off the engine
immediately.
b. Use the Trouble Shooting Guide on page 23 to
isolate the cause of the overheat.
CAUTION: Do not remove the water fi ll
cap of an overheated engine. Escaping high
temperature steam can cause severe burns. Allow
the engine to cool and then remove the cap slowly
using protective clothing.
c. Make repairs. Restart your set after the
temperature registers below 225°F (107°C).
d. Watch the temperature gauge regularly and
turn off the unit if the temperature rises above
230°F (110°C) on Industrial sets. Repeat
troubleshooting.
3. If shutdown is activated and the temperature gauge
shows temperature within normal temperature range:
a. Check the engine crankcase oil level.
b. If the oil level is low, fi ll with recommended
lubricating oil and restart. Watch the oil pressure
gauge carefully and shut off the engine if it does
not show a normal reading (20-60 PSI) after a
few seconds of operation.
c. If the oil level is normal, DO NOT restart the
engine. Call your dealer for assistance.
SPARE PARTS
1. Northern Lights recommends that you keep the
following spare parts on hand for fi eld service. The
parts are available from your local Northern Lights
dealer.
2. All owners should have the following:
a. Primary and secondary fuel fi lter elements
b. Oil fi lters
c. Air fi lter (industrial units only)
d. Alternator belt
e. Thermostat and gaskets
f. Glow plug
g. Injector and washer
3. If your set is operating a long distance from a
servicing dealer, add the following:
a. Complete set of injectors
b. Copper washers for injector change
c. Complete set of glow plugs
d. Fuel lift pump