Northern Lights NL673L4, Operator'S Manual

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ONL673L4 5/21
12
BREAK-IN PERIOD
1. The first 100 hours on a new or reconditioned
engine are critical to its life and performance.
2. Operate the engine under various conditions,
particularly heavy loads with minimal idling, to help
set engine components properly.
3. Constantly check the engine temperature and oil
pressure.
4. Oil consumption is greater during break-in as
piston rings take time to seat.
5. Break-In Oil Changes: Change engine oil and
filter at 50 hours. Change oil and filter again at
100 hours (consult Lubricants section for oil
recommendation).
BEFORE STARTING
1. Check the water level by removing the pressure
cap from the expansion tank or radiator. In order to
give the cooling water an opportunity to expand, the
level should be about 1 in. (2.5 cm) below the filler
cap sealing surface when the engine is cold.
CAUTION: Use protective clothing and open the filler
cap carefully when the engine is warm to prevent
burns.
2. Check the oil level in the crankcase
with the dipstick. The oil level must be in the
waffled area on the stick. Never allow the level
to go below this area. Always add the same
viscosity of oil as is already in the crankcase.
3. Check the fuel tank level and open any fuel valves.
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. Hold the Shutdown Bypass-Preheat switch in the
ON position for 10 to 20 seconds before starting
a cold engine. Holding the switch too long can
burn out the glow plugs.
2. While holding the Shutdown Bypass-Preheat
switch in the ON position, push the Engine
Control switch to the START position.
3. As soon as the engine starts, release both switches.
Do not crank the starter for more than 10 seconds
consecutively. If the engine fails to start with the
first attempt, be sure that it has stopped completely
(stationary at least 30 seconds) before
re-engaging.
OPERATING
1. Check oil pressure often. Oil pressure must be
above 15 PSI. Normal coolant temperature is 75
to 90°C (167 to 194°F). Check the AC voltage
and frequency. If these deviate from normal
levels, shut down the generator set and
investigate.
2. Let the unit run unloaded for about 10 minutes
for a warm-up period.
3. Add electrical load.
STOPPING
1. Cool down the engine by operating at low idle
speed for 3 minutes.
2. Check the engine noise and oil pressure for
abnormalities.
3. Remove electrical load from the generator set.
4. Turn the control switch to off.
Operating Procedures
Updated 1-10-13