Four winns Vista 328 Owner's Manual page 45

B. Power Tilt
Power tilt allows the operator to raise and lower the drive
unit for trailering, launching, and beaching. Additional
information on power tilt can be found in the engine
manufacturer’s manual included with this manual.
NOTICE
DO NOT operate the engine with the stern drive
tilted up. Severe damage to the engine drive
system can result. Consult the Engine Owner's
manual for specific information.
E - 7 TRIM TABS
Electric/hydraulic trim tabs are standard equipment and
help provide maximum control of the hull in all water and
load conditions. If used properly, trim tabs can
a. Compensate for wind and load listing (level the boat
side to side).
b. Induce faster planing and help achieve optimum run-
ning angle (see Section E-6 Running Angle & Power
Trim/Tilt)
The proper use of electric/hydraulic trim tabs requires a
basic understanding of trim tab operation and some prac-
tice in calm water. Be sure to read the manufacturer’s
literature included in the owner’s packet.
The trim tab control uses two (2) momentary-type rocker
switches. The trim tab switches control the attitude or
position of the boat. The trim tab switches are labeled by
position such as “Bow Up” and “Bow Down”. They are
also labeled for “Port” and “Stbd”. When depressed, the
label indicates what happens to the bow of the boat.
Before leaving the dock and utilizing the trim tabs, en-
sure the trim tabs are in the full up position. Depress
both lower halves of the trim tab switches and hold (for
approximately 10 seconds) until the tabs are full up.
A. Control Listing
Wind, loading and many other factors can result in the
boat tilting or leaning towards one side while running.
This is called listing and can be negated using trim tabs.
Pressing the lower port trim tab switch will move the port
trim tab upward. This will result in the starboard bow of
the boat being allowed to rise.
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Pressing the lower starboard trim tab switch will cause
the starboard trim tab to move upward and will result in
the port bow being allowed to rise.
Depressing the upper port trim tab switch will cause the
port trim tab to move downward and will force the star-
board bow downward.
Depressing the upper starboard trim tab switch will cause
the starboard trim tab to move downward and will force
the port bow downward.
Always establish your intended heading and attain de-
sired cruising speed before trying to adjust running atti-
tude (using the trim tabs).
Always press the trim tab switches in short 1/2
second bursts. If depressed too long, you can
overcompensate, and potentially lose control. DO
NOT try to correct the situation by depressing
the other upper trim tab switch. Instead, raise
the tab slightly by depressing the appropriate
lower half of the trim tab switch.
After stabilization of speed and direction, depress the upper
half of the appropriate trim tab switch to achieve a level
side to side running attitude. Be sure to press the correct
trim tab switch to obtain the desired result.
After depressing a trim tab switch, always wait and allow
time for the change in trim tab position to take effect. DO
NOT continue to depress the trim tab switch while awaiting
trim tab reaction. By the time the effect is noted, the trim
tab will move too far and thus overcompensate.
B. Induce Planing & Controlling Trim Angle
Trim tabs can also be used to facilitate faster planing and
allow better control of the running angle.
Before accelerating and trying to gain plane, depress both
upper trim tab switches. This will cause both trim tabs to
move downward and force the bow down when running.
This can also be used when running the boat with a heavy
load aboard.
Section E
Page 5