Power Trim; Power Tilt; Trim Tabs; Control Listing - Four winns 248 Vista Owner's Manual

A. Power Trim
Trim angle is how far in or out, the lower unit is positioned
in relation to the bottom of the boat. The trim angle of the
lower unit has a distinct affect on the running angle of the
boat.
The power trim system permits control of the trim angle
of the drive unit relative to the boat, at the touch of a
button.
It allows the drive unit to be raised (trimmed out) for shal-
low water operation. Power trim also allows the operator
to adjust the drive unit while underway to provide the ideal
running angle for a given load and water condition. Addi-
tional information can be found in the Engine Owner's
manual.
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 - 8

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-7 - 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
Vista™ Owner's Manual
™
also labeled for "Port" and "Stbd". When pressed, the
label indicates what happens to the bow of the boat.
Before leaving the dock and utilizing the trim tabs, ensure
the trim tabs are in the full up position. Press 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 star-
board trim tab upward. This will result in the port bow of
the boat being allowed to rise.
Pressing the lower starboard trim tab switch will cause
the port trim tab to move upward and will result in the
starboard bow being allowed to rise.
Pressing the upper port trim tab switch will cause the
starboard trim tab to move downward and will force the
port bow downward.
Pressing the upper starboard trim tab switch will cause
the port trim tab to move downward and will force the
starboard 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 one
(1) second bursts. If pressed too long, you can
overcompensate, and potentially lose control. DO
NOT try to correct the situation by pressing the
other upper trim tab switch. Instead, raise the
tab slightly by pressing the appropriate lower half
of the trim tab switch.
After stabilization of speed and direction, press the upper
half of the appropriate trim tab switch to achieve a level
side to side running attitude. Be sure to press the cor-
rect trim tab switch to obtain the desired result.
After pressing a trim tab switch, always wait and allow
time for the change in trim tab position to take effect. DO
NOT continue to press 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.
Section E
Page 8