Wellcraft 180 Sportsman, Руководство пользователя, Страница: 52 / 92

Chapter 10:
ROUTINE MAINTENANCE
10.1 Exterior Hull and Deck
Hull Cleaning-Below The Water Line
When the boat is removed from the water, clean the
outer bottom surface immediately. Algae, grass, dirt,
and other marine growth are easier to remove while the
hull is still wet. Use a pressure cleaner or a hard bristle
brush to clean the surface.
Bottom Painting
If the boat is to be left in the water for extended
periods, the hull must be protected from marine growth
by antifouling paint. Because of variations in water
temperature, marine growth, and pollution in different
regions, your dealer and/or a qualified boat yard in your
area should be consulted when deciding what bottom
paint system to apply to your hull. This is extremely
important as pollution and marine growth can damage
fiberglass hulls.
Do not allow the hull antifouling paint to contact the
outboard motor. Most antifouling paints designed for hull
bottoms contain copper and can cause severe galvanic
corrosion damage to the motor. Always leave a ½”
barrier between the hull bottom paint and outboard
motor.
Osmosis blistering is caused by a chemical reaction
between water and substances in the hull laminate
below the waterline. If water breaches the exterior
gelcoat and barrier layer, it can react with the chemical
components in the laminate creating acidic substances.
These substances create pressure behind the gelcoat
which cause blisters. An epoxy barrier coating such as
the Interlux Interprotect® system properly applied to
the hull before bottom paint will help prevent this
problem. A barrier coating also provides an excellent
base coat for the bottom paint.
Even though the hull on your Wellcraft is built with a
layer of blister resistant resin, we recommend that
additional protection from marine growth and pollution
be provided by a barrier coating system and antifouling
paint if the boat is to be left in the water for over two
weeks. This is extremely important as pollution and
marine growth can cause osmosis and damage
fiberglass hulls.
Most bottom paints require some maintenance. Proper
maintenance is especially important when the boat is in
saltwater and not used for extended periods or after dry
storage. If the hull bottom has been painted with
antifouling paint, contact your dealer for the
recommended maintenance procedures.
Sacrificial Anodes
Sacrificial anodes are installed on the outboard motor.
Anodes should also be installed on the trim tabs if the
boat is kept in the water. Anodes should be checked
monthly and changed when they are 50-75% of their
original size. When replacing the anodes, make sure the
contact surfaces are clean, shinny metal and free of
paint and corrosion. Never paint over the anode.
Boats stored in salt water will normally need to have the
anodes replaced every six months to one year. Anodes
requiring replacement more frequently may indicate a
stray current problem within the boat oat at the slip or
marina. Anodes that do not need to be replaced after
one year may not be providing the proper protection.
Loose or low quality anodes could be the problem.
Contact your dealer for the proper size and type of zinc
anodes to be used and the specific installation
procedure.
There at least two anodes on most outboard engines.
There is a large anode on the bottom of the clamp
bracket and another anode on the anti-cavitation plate,
above the propeller.
52