Auxiliary Gear Drive Limitations; Generator Set Power Units - Northern Lights OM-C3 Operator's Manual

7. Check poly-vee belt for proper alignment and seating
in pulley grooves.
Two zinc plugs (A) are installed in the sea water
cooling system to help neutralize the corrosive action
of salt water on internal cavities of marine engine
components. The reaction of the zinc, when exposed
to the salt water, causes the plugs to deteriorate
instead of critical engine components.
8. After the first 50—100 hours or 2—4 weeks of
operation, remove zinc plug from each heat exchanger
end cap (B) and inspect for corrosion to get an idea
of rate of deterioration in sea water.
If rate of corrosion is slight at 50—100 hours or
2—4 weeks initial inspection, zinc plugs should be
inspected at 250 hour intervals thereafter. (See
INSPECT AND REPLACE ZINC PLUGS in Lubrication
& Maintenance/250 Hour Section)

Auxiliary Gear Drive Limitations

IMPORTANT: When attaching a sea water pump or
other accessory to be driven by the auxiliary
gear drive (A) (engine timing gear train at front
of engine), power requirements of the accessory
must be limited to values listed below:
•
30 kW (40 hp) Continuous Operation
•
37 kW (50 hp) Intermittent Operation
A—Auxiliary Gear Drive

Generator Set Power Units

To assure that your engine will deliver efficient generator
operation when needed, start engine and run at rated
Engine Operation
A—Zinc Plugs
speed (with 50%—70% load) for 30 minutes every 2
weeks. DO NOT allow engine to run extended period of
time with no load.
OM-C3 | 12/6 | 16
B—End Cap
RG19661,00003BC -19-28FEB13-5/5
Auxiliary Gear Drive
RG,RG34710,5555 -19-03JAN02-1/1
RG,RG34710,5556 -19-20MAY96-1/1