Bennett Marine AutoTrimPro Installation & User Manual page 31

This section is intended to provide a general overview of how trim tabs work.
For detailed information on operating your AutoTrim Pro, see page 32.
Windy Chop
To raise the windward side of the boat press BOW UP on that side. If this is not
sufficient, press BOW DOWN on the leeward side of the boat. This allows the
windward side of the boat to rise and minimizes spray. Do not over-trim when
attempting this.
Shallow Water / Hole Shot
To lift the stern and lower the bow, lower both tabs completely down by
pressing BOW DOWN on both tabs. As you throttle up and speed increases,
raise the tabs by pressing BOW UP on both tabs.
Porpoising
Porpoising is a condition more common in faster boats. As speed increases, the
bow repeatedly rises out of the water until gravity overcomes lift and the bow
falls down creating a bouncing effect. To correct this condition, press "Bow
Down" in half-second bursts. As the trim tabs deflect, the porpoising subsides
and your speed should remain the same or slightly decrease. Only a slight
amount of trim tab deflection should be necessary.
Safety Precautions
Bennett trim tabs have a significant effect on the operation and versatility of
your boat. No one knows your boat better than you, so the best learning method
is to spend time getting familiar with your boat's reaction to the trim tabs.
Remember, practice makes perfect! As your experience increases, so will your
enjoyment. Always operate your boat with safety first in mind.
• Do not over-trim, particularly at high speeds as the bow will dig in and wave
action may cause the boat to veer.
• While operating trim tabs, use caution. Improper use of trim tabs may cause
accidents and/or injury.
• For best maneuverability, trim tabs should be fully retracted in a following
sea, or when running in an inlet.
For information about operating ATP auto mode, see page 32.
Bennett Marine AutoTrim Pro | Need help? Call (954) 427-1400
Trim Tab Basics
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