305 Conquest-Owner’s Manual
Section 8 - Getting to know your Boston Whaler
TRIM TAB
TRIMMING
OPERATION
Trim Tabs
Your 305 Conquest is fitted with electri-
cally powered trim tabs.
The trim tabs are located on the lower
section of your transom and are used to
trim the list of your boat caused by un-
even weight distribution, too many persons on one side
of the boat, or strong cross winds. An untrimmed boat
will: decrease the visibility the pilot has, reduce fuel
economy, increase wear on your engine(s). While ac-
celerating there is some loss of forward visibility before
the boat is on plane, the trim tabs can be used to adjust
for forward visibility while underway.
Read all information supplied by the trim tab manufac-
turer for its use and maintenance.
OPERATION:
The trim tabs are controlled by rocker switches located
on the center part of your console above the throttle
control. Short momentary bursts of the rockers will
achieve proper attitude of the hull. The trim tab switch is
marked “bow up” and “bow down”.
Using the trim tabs will:
• Level the boat; fore and aft.
• Reduce resistance in the steering system.
• Give you a smoother more stable ride.
• Speed will increase and there will be less strain
on the engines.
MAINTENANCE:
The trim tabs are a completely sealed unit and are wa-
terproof and maintenance free. Aside from a general
cleaning when the boat is out of the water you should
also inspect the planes and hinges for marine growth.
Removal of marine growth should be performed as part
of the hulls regular maintenance.
1
2
3
4
5
6
7
DOWN
UP
BOW
DOWN
UP
BOW
1
Port trim tab plate, Stainless steel
2
Starboard trim tab plate, Stainless steel
3
Stainless steel ram
4
Stainless steel hinge
5
Low voltage electric motor in
corrosion-proof casing
6
Wiring to helm mounted switch
7
Electric trim tab switch (w/indicators Optional)
7
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