Engaging & Disengaging Front Pto (If Equipped); Cold Weather Operation - Northern Lights M80A13S 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.
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)
Engaging And Disengaging Front PTO (If
Equipped)
CAUTION: Entanglement in rotating driveline
can cause serious injury or death. Keep shield
on PTO driveshaft between clutch housing and
the engine driven equipment at all times during
Stop the engine and be sure PTO driveline is
stopped before making adjustments.
CAUTION: Metal surfaces of PTO housing may be
hot to the touch during operation or at shutdown.
The optional front power take-off (PTO)
transfers engine power to auxiliary equipment or moving
components.
The PTO clutch is electric and engaged by a switch.
Engage Gen-Set engines at no load rpm.

Cold Weather Operation

Additional information on cold weather operation is
available from your engine distributor or authorized
servicing dealer.
Some engines are equipped with an air intake heater
which will make starting the engine easier in cold weather.
If equipped, follow steps 1- 3 as listed under STARTING
THE ENGINE, earlier in this section.
in arctic conditions.
with air intake heaters.
Engine Operation (Continued)
A—Zinc Plugs
If the power take-off does not work properly, contact your
authorized servicing dealer or engine distributor.
OM3-80 12/21
16
B—End Cap
Avoid Entanglement
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Starting Fluid is Flammable
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