Break-In Procedure; Marine Break-In Service; Break-In Oil - Northern Lights M50C13 Operator's Manual

BREAK-IN PROCEDURE

During the 100 hour break-in period it is important to
adequately work the engine to properly seat the engine
components. Extended idle and light load operation
should be minimized. Extended idle and/or light load
operation intervals should not exceed 30 minutes during
the break-in process. Minimum operating engine loads
should be sufficient to result in coolant temperatures at or
above the thermostat opening temperature.
IMPORTANT: It is critically important to properly
break in the engine within the first 100 hours.
Attempting a break-in at higher hour intervals may
be unsuccessful. To correctly perform the break-in,
extra effort is required to ensure that engine is heavily
exercised and may include running the engine harder
than normal usage. This is especially true with lightly
loaded applications such as trawlers and oversized
generator sets.
Constant Speed Applications — Minimum engine load
factors during the break-in period should be greater than
30%.
It is recommended that the engine operate between 50%
and 90% load greater than 50% of the time during the
break-in period.
IMPORTANT: Lightly Loaded Applications Post
Break-In - Engine break-in will not compensate for the
observable conditions of a lightly loaded engine such
as black fuel oil residue in the exhaust system. These
conditions can be common among trawler propulsion
engines, oversized generator sets, applications that
spend long intervals at idle, and will occur on any lightly
loaded diesel engine. Northern Lights marine diesel
engines are designed to operate at loaded conditions. To
prevent exhaust system contamination in a lightly loaded
application, regularly exercise the engine by periodically
increasing the load.
For example, in a trawler propulsion application
underway increase the throttle to achieve an engine speed
of the break-in speeds defined above for a minimum of
10 minutes every 3 hours. For a generator application,
increase the load to 50% load for a minimum of 10
minutes every 3 hours.
Engine Operation
Load factor - the actual fuel burned over a period of time
divided by the full-power fuel consumption for the same
period of time. For example, if an engine burns 160 L
of fuel during an eight-hour run, and the full-power fuel
consumption is 60 L per hour, the load factor is:
160 L / (60 hours per hour x 8 hours) = 33.3%)

MARINE BREAK-IN SERVICE

A proper break-in procedure is critical with marine diesel
engines. A proper break-in will ensure optimal engine life.
A proper break-in for marine engines is expected to take
approximately 100 hours if performed correctly.
For constant speed engine operation such as generators,
a similar process should be followed, except instead of
changing speed, the engine load should be increased
until the point of maximum engine fueling (100% load or
maximum generator output). These 10% steps in engine
percent load should be performed for a minimum of
5—10 minutes each or until engine temperature stabilizes
while monitoring all engine criticals. If a fault code
should occur, abort process and review application and
installation guidelines.

BREAK-IN OIL

The engine is factory filled with Northern Lights Diesel
Engine Break-In Oil. This is a special formulation of oil
that is designated to aid with the proper break-in of engine
components. If performed correctly, it is expected the
break-in process will take 100 hours. During this process
some make-up oil may be required. As it is not unusual
for some oil consumption during the break-in process; it
is critical that the oil level be frequently monitored during
this process. If make up oil is required use only Northern
Lights Diesel Engine Break-In Oil.
Following the 100 hour break-in process it is
recommended that change of oil and filter should
occur. If the break-in procedure has been followed and
sufficient extended loading of the engine has occurred it is
acceptable to proceed with normal oil changes as advised
in this operator's manual. However, if during the first
100 hours of operation the engine has operated at periods
of light loading and/or idle it is recommended that the
oil should be drained and replaced with Northern Lights
Diesel Engine Break-In Oil, and the oil filter should
be changed and replaced with a new Northern Lights
oil filter. Following this, the break-in procedure should
continue for an additional 100 hours.
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