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Mercury 300XS OptiMax User Manual

Mercury 300XS OptiMax
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MAINTENANCE
77
5. Make sure the battery is equipped with a non-conductive
shield to prevent accidental shorting of battery terminals.
Charging System Fusible Link
This model has a 100 ampere fusible link between the alternator
and the +12 volt stud. This fusible link protects the alternator from
damage due to accidental reverse battery connection. If the battery
cables are reversed, the fusible link creates an open circuit,
protecting the alternator. With the fusible link open, the engine can
be started; however, the run time is limited, because the alternator
is not charging the boat battery. If the fusible link circuit becomes
open, contact your authorized Mercury Marine dealer.
59364
Replacing the Propeller
!
WARNING
Avoid serious injury or death. Place the remote control in neutral
and remove the ignition key from the switch before removing and/
or installing the propeller. Place a block of wood between the
anti-ventilation plate and the propeller to protect hands from
propeller blades and to prevent the propeller from rotating when
removing the propeller nut.

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Mercury 300XS OptiMax Specifications

General IconGeneral
Engine Type2-Stroke
Horsepower300 HP
Alternator Output60 amp / 756 watt
Gear Ratio1.75:1
Starting SystemElectric
Fuel System2-Stage Direct Fuel Injection (DFI)
Weight505 lbs / 229 kg
Cylinders6
SteeringHydraulic
Shaft Length25"

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