the stern of the boat and will keep the bow down. As you throttle up and speed increas-
es, raise the tab(s) by pressing BOW UP on both sides of a dual system, and BOW UP on
the single system.
Uneven Load: When equipped with a dual system, if one side of the boat is higher
than the other while running, press BOW DOWN on the switch on that side. This will
lower the tab on the listing side (low side) to bring the boat level.
Porpoising: To stop porpoising, press BOW DOWN on both sides of a dual plate sys-
tem, BOW DOWN on a single system. The plate(s) needs only to be deployed slightly to
correct this adverse situation.
While operating attitude adjustment
plates use caution. Improper use of plates
can cause accidents, which may result
in serious injury or death. While the boat
is underway do not move one plate up or
down significantly as this may cause listing. While at higher speeds
do not over-trim, as this will cause the bow to lower quickly, resulting
in a reduction of speed and may cause the boat to veer. When in follow-
ing seas or when running an inlet, the plates should be fully retracted. This
will allow for optimal performance. ELECTROMECHANICAL ACTUATORS
PROVIDE AN INSTANT RESPONSE. WHEN MAKING ADJUSTMENTS, USE
SHORT MOMENTARY TAPS OF THE SWITCH.
Ballast Empty/Fill Switches
(On Ballast-equipped models only)
On boat models equipped with a ballast system, a separate three-position switch
will allow for the filling or emptying of the ballast tanks and/or bags. Be aware that the
engine must operate at 1500 RPM during the fill and empty processes. Check en-
gine specifications for related engine idle speed, which may be too low for the empty/fill
operation to be properly accomplished. Failure to increase engine RPM to the required
level may result in malfunction or permanent damage to the ballast pumps that force
the water through the system. Such damage is not covered under your warranty. The
ballast controls vary in location by model, and the operator should determine exact loca-
tion prior to use. The three-position switches are clearly marked; FILL, OFF (in center),
and EMPTY.
An LED light is in the tip of each switch. At the conclusion of the FILL process, the
light will blink six times in succession, pause for two-to-three seconds, and then blink an
additional six times. This signals that the FILL process is complete. If the system senses
any potential problems, the LED lights may blink from one to five times (each signifies
individual issues). If this occurs, see an authorized MasterCraft dealer for analysis and
correction. Do not attempt to correct the issue on your own or continue to FILL the bal-
last as it may result in damage to the system.
Mirrors
Just as you would in a car, you should always check that the mirror is properly
located to view behind the boat while it is underway. Also be sure that it is securely at-
tached to the windshield extrusion. Under normal operation, there is a certain amount of
vibration and over time this can cause brackets and hardware to work loose.
Prior to operation of the boat, verify
that the mirror hardware is secure.
Failure to do so may result in the mirror
detaching from the windshield extru-
sion. The mirror could hit the operator
or a passenger, resulting in injury.
2013 MasterCraft Owners Manual • Electronic Instrumentation • Page 3-14
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