Hunter H33 Operator's Manual page 200

a canvas cover with provisions for ventilation to keep the
boat from "sweating." Building a frame over the boat to
support the canvas will allow the passage of air around
the boat. The frame should be a few inches wider than
the boat so the canvas will clear the rails.
Before preparing your boat for winter storage, check the
condition of the boat and its systems and equipment.
Note any repairs needed. The need for other repairs may
become apparent during winterization. Make arrange-
ments to have the repairs completed.
14.6.1 Lifting Your Boat
Following are guidelines which will help prevent damage
to your boat as it is being lifted.
* Never hoist the boat with a greater than normal accu-
mulation of water in the bilge. Fuel and water tanks
should be empty.
* Place slings where indicated by the sling tags on the
gunwale. Proper location of the aft sling is critical. Lifting
aft of the station indicated may damage the propeller
shaft. Lifting forward of the station indicated, with the
sling under the exhaust outlets, may cause cracking
which is not covered by the warranty. Blocks or pads at
the chine corners will help keep pressure to a minimum
at this point.
* Disconnect the propeller shafts at the transmissions to
prevent damage to the transmission.
* Use flat, wide slings made of belting and spreader bars
long enough to keep pressure off the gunwale. Do not
use cable slings. Pressure by the slings on the gunwale
can cause severe gelcoat crazing or more serious hull
damage.
* The spreader bar at each sling should be as long as the
distance across the widest point the sling surrounds.
* Weight should be primarily distributed along the keel.
If a marine railway or platform is used, locate and adjust
the blocking to distribute the weight over several areas at
the intersection of stringers and bulkheads. The bunks
and/or blocks should match deadrise angle and provide
adequate support and stability.
* When lifting the boat, keep the bow higher than the
stern so the exhaust lines can drain. This will keep water
from running forward through the manifold and into the
engine itself where the water can become trapped.
Hunter 33 • Maintenance
Note: Keep the bow higher than the stern every time the boat
is lifted. Do not lift the stern to change a propeller. Doing so
can cause water to enter the engine. Engine failure is possible
if water enters the engine cylinders. This water can cause
hydrolock and bend the piston rods. Even a small amount of
water can cause rust or other damage.
14.6.3 Draining Your Boat
Your boat has bilge pumps for draining water from the
bilges. Some compartments in the bilge may not drain
completely because of the position of the boat. Pump
these compartments out then use a sponge to remove all
remaining water.
Procedures for draining and winterizing the fresh water
system are in this section under the "Preparing for
Storage" heading.
14.6.2 Preparing for Storage
* Clean, scrub, and sponge the hull and deck as soon as
the boat is pulled from the water and is still in the sling.
Cleaning marine growth from the hull is easier when it is
still wet.
* Clean the inside of all hull openings, through hull fit-
tings, and screens. Inspect the hull and underwater gear
for signs of wear, deterioration, or damage. Note any
damage to the propulsion equipment, helm area, cabin,
etc. Make repairs, if at all possible, before covering your
boat.
* Fill the fuel tanks with treated fuel to prevent conden-
sation. If you use a stabilizer or conditioner, be sure to
follow the instructions on the container.
Important: Do not overfill fuel tanks so fuel flows from the vent.
Allow room in the tanks for fuel to expand.
** Prepare the Engines for Storage:
* In areas where temperatures fall below freezing, the
bilge area under the engines must be pumped out and
sponged completely dry. Check for areas that do not
drain to the pumps. Drain mufflers.
Note: Refer to the engine owner's manual for winterization and
storage procedures.
** Prepare the Batteries for Storage:
* Be sure main battery breakers are off.
* Remove batteries from boat and store in area where
14.8