Northern Lights Lugger M773LW3, Operator'S Manual

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OM773LW3 11/20
13
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 to help seat engine
components properly. 50% load is required; 75% is
preferred.
3. Constantly check the engine temperature and oil
pressure gauges (sets with Series 3 or 4 panels).
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, then at every 200 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 expansion tank should be full. Overflow bottle
should be half full.
Do not open the filler cap when the engine is
warm. Opening a warm filler cap can cause
severe 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. Do not remove dipstick when engine
is running.
3. Check the fuel tank level and open any fuel valves.
4. Check and clean the sea strainer and reopen the sea-
cock.
5. 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. Hold the Shutdown Bypass-Preheat switch in the
ON position for 10 seconds before starting a cold
engine. Holding the switch too long can burn out the
glow plugs. This step is not necessary if the engine is
already warm.
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 the start switch
and continue to hold the bypass/preheat switch for
up to five seconds. 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 before re-engaging.
NOTE: Excessive cranking of the starter on Marine
sets equipped with a water lift muffler can cause
engine damage. If the engine does not start after three
10-second cranks, close the sea-cock, and remove the
impeller from the raw water pump. This will prevent
the muffler from filling with water and backfilling the
exhaust line and engine. Once the engine starts, shut
it off immediately and re-install the impeller and open
the sea-cock. Re-start the engine and check the exhaust
overboard outlet for gushes of water.
OPERATING
1. Units with Series 3 Control Panels: check gauges
often. Oil pressure must be above 15 PSI. The D.C.
voltmeter should read between 11 and 15 volts at 80°F
(25°C) ambient temperature. The coolant temperature
gauge must be between167°F and 194°F (75°C to
90°C). Check the A.C. voltage and frequency meters
(Series 4 panel). If the gauges deviate from normal
levels, shut down the generator set and investigate.
2. After starting, add electrical load up to 50% for first
few minutes. Load normally after 5 minutes.
STOPPING
1. Remove electrical load from the generator set.
2. Run the engine for a 3 to 5 minute cool down period.
3. Move the Engine Control switch to the STOP position
momentarily.
4. Close the sea-cock, fuel valve, and battery switch.
Operating Procedures
Updated 10-19-20
!
DANGER