58
MONTEREY
BOATS
Helm Control Systems
Trim Tab Control Switch
4.8 Trim Tabs
Trim tabs are optional on the 268SS and standard
equipment on 288SS and 328SS models. Trim
tabs are mounted to the hull on the transom be-
low the swim platform. Dual rocker switches in
the helm are used to control the trim tabs. The
switches are labeled and control bow up and down
movements. They also control 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 hull listing.
An indicator next to each switch displays the
position of your trim tabs. The display indicates
bottom of the display, the tabs are in the “full-
up” (bow up) position. When the indicator is at
or near the top of the display, the tabs are fully
extended (bow down).
The trim tabs are programmed to automatically
retract when the engines are shutdown to keep
the actuators clean and set the tabs in the full “UP”
position when leaving the dock. Refer to the trim
tab operating manual for more information on the
operation and programming of the trim tabs.
Before leaving the dock, make sure that the tabs
are in the full “UP” position. If they are not, press
and hold the control in the bow up position for ten
(10) seconds to fully retract the tabs.
NOTICE:
The trim tabs can be damaged by boat trailers
if the bunks extend beyond the transom or
the boat is not centered properly. They can
also be damaged by fork lifts at dry stack ma-
rinas during lifting. To reduce the possibility
of damage, always make sure the tabs are in
the full up position before loading your boat
on a trailer or having it lifted by a fork lift.
Trim Tab Operation
Always establish the intended heading and cruise
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 overcompen-
sated 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 operat-
288SS Trim Tab Plane
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