Starting; Operating; Stopping - Northern Lights OM944W3 Operator's Manual

STARTING

1. Hold the Shutdown Bypass switch in the ON
position.
2. While holding the Shutdown Bypass 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 an
additional 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 3 consecutive 20-second cranks,
remove the impeller from the seawater
pump. This will prevent the muffler from
filling with water and backfilling the exhaust
line and engine. Once the engine starts, shut
if off immediately and reinstall the impeller.
Restart and check the exhaust overboard
outlet for gushes of water.
Updated 5-7-19
Operating Procedures

OPERATING

1. Units with Series 3 and Series 4 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 water temperature gauge must be below 200°
F (94° 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. Let the unit run unloaded for a three to five minute
warm-up period.
3. Add electrical load.

STOPPING

1. Remove electrical load from the generator set.
2. Run the engine for a three to five minute cool-down
period.
3. Move the Engine Control switch to the STOP
position until the engine stops completely.
4. Shut off seacock, fuel valve, and battery switch.
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