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lencomarine.com
Safety & Trim Tab Overview
Trim Tab Overview:
Whether Lenco trim tabs operate independently of one another, or in unison, they provide optimal
performance by redirecting water flow at the transom of the boat. Lenco trim tabs have been designed
to improve the overall attitude of a boat. When used properly, Lenco trim tabs improve the ride, reduce
drag, increase speed, and improve the fuel eiciency of your boat.
WARNING: The trim tab system described in this document must be applied according to
these instructions:
• Unforseen responses to sea states may cause adverse operating conditions
• Unforseen responses to keypad inputs may cause adverse operating conditions
• Unforseen actuator performance may cause adverse operating conditions
Without Trim Tabs
With Trim Tabs
When the tabs are
lowered, the water
flow is redirected
creating an upward
force at the stern of
the boat.
The operation of Lenco trim tabs is basic.
The two stainless steel planes are mounted
with the actuators on the transom of the boat.
When the tabs are lowered, the water flow
is redirected creating an upward force at the
stern of the boat. When the stern rises, the bow
will lower.
Since Lenco actuators are electromechanical,
they provide an immediate response at the
touch of the keypad. This applies to all of our
trim tab keypads and switch kits. Since each
boat is dierent in weight, length, speed and
performance, it takes practice to understand
how your boat reacts with trim tabs installed.
Lenco trim tabs allow your boat to get on
plane faster and continue to stay on-plane
at lower speeds. This improves the captain’s
visibility and the overall safe operation of your
boat. When adjusting the trim tabs, use short
momentary taps of the keypad and rotary dial.
To become knowledgeable on how your boat
performs with Lenco trim tabs, remember,
practice makes perfect.
Safety
WARNING: Operating the actuators at a high duty cycle without cooling from ambient water
may damage the actuator and cause failure.
WARNING: Auto mode function warning:
Quickly reducing from high to low speed causes the trim tabs to fully deploy.
Full deployment of the tabs at high speed will cause a very rapid reduction in the boat's
speed, resulting in any heavy object not securely tied down being thrown forward, including
passengers.
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