Systems; Fresh Water - Pro-Line Boats 33 Express Owner's Manual

11
Shaft Seal Inspection
Your 33 Express propeller shafts will have dripless packing as a standard feature. Water is supplied to the seals
by providing cool raw water under pressure from each engine raw water pump. A crossover system provides for
water to be supplied to a seal even if one engine is not running. As the name implies, there will be no water
dripping as in a standard packing seal. Inspecting these seals should be part of your regular maintenance
schedule.
BENNETT TRIM TABS
Figure 3 - Trim Tab Operation
Trim Tab Operation
The optional trim tabs operate independently up or down to correct for differing conditions of wind or load.
Indicators show the relative position of the tabs in relation to the hull. For specific information refer to owners
packet. Before the boat is underway depress the bottom half of both switches until the tabs are fully elevated
(bow up position) while underway and in open water clear of other boaters, depress the top half of the switches in
half second bursts to achieve the desired degree of trim.
To correct a starboard list give the top half of the port switch a series of bursts until the list is corrected. To avoid
over trim, allow a few seconds between bursts to allow the boat to respond (if you over trim simply give the over
trimmed tab a burst or two in the opposite direction).
To trim the bow down push the top half of both rockers switch in half -second bursts.
Warning: Trim tabs can cause a dramatic change in the attitude and heading of your
boat. Adjust them only when in open water and clear of any obstructions.
Adjustments are to be made in small increments only.

Systems

Fresh Water System
The fresh water pump on your Pro-Line supplies water on demand when a drop in water pressure activates the
pressure switch. The manual switch located at the helm energizes the pump. A dockside fitting is provided. The