3000 EXPRESS
2.6 Trim Tabs
The trim tabs are recessed into the hull on the transom. A dual rocker
switch is used to control the trim tabs. The switch is labeled and controls
bow up and down movements. It also controls starboard and port up and
down movements. Bow up and bow down will control the hull planing
attitude, while port and starboard up and down provides control for the
hull listing.
Before leaving the dock, make sure that the tabs are in the full “UP”
position by holding the control in the bow up position for ten (10) seconds.
Always establish the intended heading and cruise speed before attempt-
ing to adjust the hull attitude with the trim tabs. After stabilizing speed and
direction, move the trim tabs to achieve a level side to side running attitude
being careful not to over trim.
After depressing a trim tab switch, always wait a few
seconds for the change in the trim plane to take effect.
Avoid depressing the switch while awaiting the trim
plane reaction. By the time the effect is noticeable the
trim tab plane will have moved too far and thus the boat
will be in an overcompensated position.
When running at a speed that will result in the boat falling
off plane, lowering the tabs slightly, bow down, will
improve the running angle and operating efficiency. Too
much bow down tabs can reduce operating efficiency and
cause substantial steering and handling difficulties.
Be extremely careful when operating in a following sea.
The effect of trim tabs is amplified under such conditions.
Steering and handling difficulties can result from im-
proper trim tab usage, particularly in a following sea.
Always raise the tabs to the full bow up position in these
conditions.
When running at high speeds be sure that the tabs are in the full “UP” position. Only enough
trim plane action should be used to compensate for any listing. Trim tabs are extremely sensitive
at high speeds. Adjust for this and be prepared to slow down if difficulties arise.
When running into a chop, a slight bow down attitude will improve the ride. Be careful not to over
trim. Handling difficulties may result.
2-4
Trim Tab Plane
Trim Tab Switch
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