PURSUIT OS 285 Owner's Manual download pdf (Page 26)

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.

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