Tiara Yachts C49, Owner'S Manual

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Section 2 Helm Systems
2-4
43 LS
2.8 Engine Power Tilt and Trim
The outboard engines used on your boat
have a tilt and trim feature. The tilt and trim
switches are usually built into the engine shift
and throttle controls, and allow the operator
to control the position of the outboards from
the helm. Moving the gear cases closer to the
boat transom is called trimming ‘in’ or ‘down.’
Moving the gear cases away from the boat
transom is called trimming ‘out’ or ‘up.’ In
most cases, the boat will perform best with
the outboards adjusted so the hull will run at
a three to five degree angle to the water.
The term ‘trim’ refers to the adjustment of the
outboards within the first 20 degree range of
travel. This is the range used while operating
your boat on plane. The term ‘tilt’ refers to
adjusting the outboards up for shallow water
operation, trailering, or ‘tilting’ the outboards
out of the water. Refer to the engine owner’s
manual for information on the proper use and
maintenance of the power tilt and trim.
CAUTION
!
The outboard hoses and cables and
the transom gel coat can be damaged
if the engine(s) are tilted to full up
position or turned in the wrong direc-
tion. Turn the steering wheel com-
pletely to one direction or the other
before tilting up to determine which
direction is best for your boat.
2.9 Steering System
Your Tiara Yacht is equipped with a steer-by-
wire steering system.
Refer to your steering
system owner’s manual for more information.
2.10 Trim Tabs
Trim tab switches on the helm are used to
control the trim tabs, which are installed on
the transom of the hull. The switches are
labeled and control bow up and down move-
ments. They also control the starboard and
port up and down movements. Bow up and
bow down will control the hull planing atti-
tude, while port and starboard up and down
provide control for the hull trim side to side.
CAUTION
!
Before backing your boat at more than
idle speed, depress both trim switches
to UP to fully retract the trim tabs. Fail-
ure to do so could result in damage to
trim tab actuators.
Before leaving the dock, make sure the tabs
are in the full UP position by holding the trim
tab switches in the BOW UP position for ten
seconds. Do not continue to operate the
switch once the tabs are fully up or down.
Establish the intended heading and cruise
speed before attempting to adjust the hull
attitude with the trim tabs. Always make slight
adjustments to reduce over-correcting. After
stabilizing speed and direction, move the trim
tabs to achieve a level, side-to-side running
attitude, being careful not to over-trim.
Trim tab switches
After depressing a trim tab switch, wait a few
seconds for the change in the trim plane to
take effect. Avoid depressing the switch while
awaiting the trim plane reaction; otherwise,
by the time the effect is noticeable, the trim
tab plane will have moved too far and the
boat will be in an overcompensated position.