Indmar Marine Engines
6-21
4. NEGATIVE (GROUND) CIRCUIT FAULTS: The pri-
mary mount of the alternator serves as the negative
ground for the alternator. This connects the alternator
to the engine block which is in turn connected to the
negative post of the battery via a ground stud on the
engine. The ground stud on the engine holds all of the
wiring harness grounds and battery ground with one
nut and it is known to occasionally become loose, dis-
connected or corroded. When the alternator loses its
ground, it can become damaged as it surges and
could cause catastrophic damage to the voltage regu-
lator within the alternator. It is important to keep the
ground wires, stud and nut clean and tight and check
it often.
5. OVERLOADED: Never use the alternator to bring a
dead or undercharged battery to a fully charged con-
dition. The excessive current draw can overheat the
diodes and cause them to fail. If you have a dead bat-
tery, use a battery charger instead. If you experience
a battery that is constantly being discharged, look for
the cause, such as bad battery or aftermarket acces-
sories, or defective electrically operated accessories.
Find the cause of the discharge before permanent
damage is done.
General Lubrication
STARTER
Apply a dab of multipurpose grease onto the starter ben-
dix every month or 50 hours of operation. Your starter
has been sprayed with lubrication internally to extend its
longevity.
SHIFT AND THROTTLE CABLES
Spray exposed throttle cable and transmission cable
ends with multipurpose grease. Work the cable back and
forth, then spray to completely lubricate. In highly corro-
sive locations, a complete cable lubrication system may
be purchased through your Indmar dealer.
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