Mainship 40 Trawler Single, Operator'S Manual

Page: 141 / 170

Mainship 40 Trawler Single & Twin • Maintenance
13.9
* 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
temperatures remain above freezing.
* Place batteries on a wooden pallet or bench.
* Keep batteries charged. Check electrolyte levels regu-
larly. Add electrolyte if needed.
** Prepare Holding Tank
* Empty and rinse holding tank until tank is clean.
* Close head intake seacock and remove hose.
* Pour the nontoxic antifreeze into the head and keep
flushing the head until the antifreeze reaches the holding
tank.
* If your boat has a macerator discharge and the boat
is removed from the water, run the macerator pump long
enough for antifreeze to run through the pump and the
lines.
* Remove drain plug from seacock while valve is closed.
Allow line to drain. Replace drain plug.
** Prepare the Fresh Water System:
* Remove the fresh water supply by opening the hot and
cold faucets in the galley for 10 minute intervals. Repeat
until the fresh water tank is empty.
* Open all faucets: galley, shower, cockpit shower, etc.
* Drain the water heater. Disconnect lines from the
engine heat exchanger (if equipped). Drain exchanger
and lines.
* Remove hot and cold water lines and hook them
together.
* Remove inlet hose from tank and insert it into a con-
tainer of nontoxic antifreeze. Turn pump on. Starting
at faucet furthest from pump, open all faucets until anti-
freeze flows out.
* Turn off pump and reconnect hose to water heater and
pump.
* Remove seacock drain plugs to prevent damage from
freezing. Close all seacocks.
** Prepare Interior of Boat for Storage:
* To keep mildew from forming, remove all items that will
hold moisture ( PFD’s, towels, blankets, clothing, canvas,
etc.).
* Make sure all garbage is removed.
* Scrub the inside of the boat. Clean cabinets, drawers,
and cupboards. Allow cabin area to dry and air for at
least one day if possible.
* Stand or prop up mattresses and cushions remaining
on board to allow good air circulation around them. Hang
life preserver and other equipment to prevent mildew.
* Remove any detachable and valuable equipment and
electronics.
** Prepare Exterior of Boat for Storage:
* Sand the hull bottom and apply at least one coat of
anti-fouling paint.
Note: This coat of paint must be applied during winterization or
before the beginning of a new boating season. Check with your
dealer for information about the paint you should use.