PURSUIT OS 285, Owner'S Manual

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2-4
Section 2 Helm Systems
OS 285
Tilt Helm
If your boat has a tilt helm, depress the lever
located in the base of the helm to tilt the
wheel. Make sure it locks into position.
Power Steering (Optional)
The power steering system uses an electri-
cally controlled hydraulic pump to provide
power to the standard hydraulic steering
system. Helm mounted power steering
switch and hydraulic pump control the sys-
tem. The switch activates the power steering
feature. Manual steering is always available
regardless of the switch position. Turning off
the power steering at low speeds reduces
the sensitivity of the steering. To conserve
battery power, due to limited engine charg-
ing output during extended periods of slow
speed operation, turn the power steering off.
Refer to the Teleflex® Power Assist manual
for further information.
2.9 Trim Tabs
Recessed into the hull on the transom are
the trim tabs. Switches control the trim tabs.
The labeled switches control the bow-up and
bow-down movements. They also control
starboard and port up and down move-
ments. Bow-up and bow-down will control
the hull’s planing attitude, while port and
starboard up and down tabs provide control
for side-to-side hull trim.
Before leaving the dock, make sure that the
tabs are in the full “UP” position by holding
the control in the bow "UP" position for 10
seconds.
Always establish the intended heading and
cruising speed before attempting to adjust
the hull attitude with the trim tabs. After sta-
bilizing the speed and direction, move the
trim tabs to achieve a level side-to-side run-
ning attitude being careful not to over-trim.
After depressing a trim tab switch, always
wait a few seconds for the change in the trim
plane to take effect. Avoid depressing the
switch while waiting for the trim plane reac-
tion. By the time the effect is noticeable the
trim tab plane may have moved too far and
thus the boat may be in an overcompen-
sated position.
When running at speeds resulting in the
boat falling off plane, lowering the tabs
slightly, bow down, will improve the run-
ning angle and operating efficiency . How-
ever, too much bow down trim can reduce
operating efficiency and cause substantial
steering and handling difficulties.
Be extremely careful when operating in a fol-
lowing sea. Such conditions cause an ampli-
fied trim tab effect. Steering and handling
difficulties can result from improper trim tab
usage, particularly in a following sea. Always
raise the tabs to the full bow "UP" position in
these conditions.
When running at high speeds be sure the
tabs are in the full “UP” position. Use only
enough trim plane action to compensate for
any listing. Trim tabs are extremely sensitive
at high speeds. Adjust for this and be pre-
pared to slow down if difficulties arise.
!
CAUTION
Some autopilot systems have engine
position sensors mounted to the
hydraulic steering cylinder. Autopilot
engine position sensor brackets can
hit the transom when the engines are
tilted to the full up position and cause
damage to the engine rigging, the
autopilot or the transom. If you have
an autopilot installed on your boat,
monitor the location of the engine
cables and autopilot brackets when
tilting the engines to determine the
best engine position and maximum
engine tilt for your application.
!
WARNING
Do not attempt to adjust the helm
wheel position while underway.