PURSUIT 3370 OFFSHORE Owner's Manual download pdf (Page 24)

3370 OFFSHORE

2.8 Trim Tabs

The trim tabs are recessed into the hull on the transom.

Switches are used to control the trim tabs. The switches are

labeled and control bow up and down movements. It also

controls starboard and port up and down movements. Bow

up and bow down will control the hull planing attitude,

while port and starboard up and down provide control for

the hull trim side to side.

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 ten (10) seconds.

Always establish the intended heading and cruise speed

before attempting to adjust the hull attitude with the trim

tabs. After stabilizing speed and direction, move the trim

tabs to achieve a level side to side running 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 awaiting the trim plane reaction. By the time the effect is noticeable

the trim tab plane will have moved too far and thus the boat will be in an overcompensated position.

When running at a speed that will result in the boat falling off plane, lowering the tabs slightly, bow down,

will improve the running angle and operating efficiency. Too much bow down tabs can reduce operating

efficiency and cause substantial steering and handling difficulties.

Be extremely careful when operating in a following sea. The effect of trim tabs is amplified under such

conditions. 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 that the tabs are in the full “UP” position. Only enough trim plane

action should be used to compensate for any listing. Trim tabs are extremely sensitive at high speeds. Adjust

for this and be prepared to slow down if difficulties arise.

When running into a chop, a slight bow down attitude will improve the ride. Be careful not to over trim.

Handling difficulties may result.

2.9 Control Systems Maintenance

Control Maintenance

Periodic inspection of the control systems and all connections should be made. Signs of rust, corrosion, wear,

or other deterioration should immediately be serviced. Generally, periodic lubrication of all moving parts and

connections with a light waterproof grease is in order.

Control system adjustments may become necessary. If adjustments become necessary, see your Pursuit dealer.

Trim Tabs

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PURSUIT 3370 OFFSHORE Owner's Manual Page 24