Regal 3300 Owner's Manual page 148

CHAPTER 5
Use Of Power Trim
The power trim is normally used prior to accelerating onto a plane, after
reaching the desired RPM or boat speed and when there is a change
in water or boating conditions. Position passengers and equipment in
the boat so that the weight is balanced correctly fore and aft as well
as side to side. Trimming will not compensate for an unbalanced load.
To operate the trim, push the switch until the desired bow position is
reached. The trim may be operated at any boat speed or at rest. Avoid
operating the trim system when running in reverse. Observe the trim/
tilt gauge which indicates the boat's bow position achieved by the trim
angle of the drive unit. "Bow-Up" corresponds to the upper portion
of the trim range on the gauge while "Bow Down" corresponds to
the lower portion of the trim range on the gauge.
To determine the proper trim angle, experiment a little until you are
familiar with the changes in your boat. The vessel will be properly
trimmed when the trim angle provides the best boat performance for
the particular operating conditions. A trim position that provides a
balanced steering load is desirable.
To familiarize yourself with the power trim, make test runs at slower
speeds and at various trim positions to see the effect of trimming.
Note the time it takes for the boat to plane. Watch the tachometer and
speedometer readings as well as the ride action of the boat.
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