Monterey Boats 378SE, Owner'S Manual

Page: 155 / 210

155
MONTEREY
BOATS
Seasonal Maintenance
• Remove the batteries and store in a cool place.
Clean using clear, clean water. Be sure the
batteries have sufficient water and clean ter -
minals. Keep the batteries charged and safe
from freezing throughout the storage period.
Notice:
Refer to the Electrical System chapter, for
information on the maintenance of the AC
and DC electrical systems.
• Coat all faucets and exposed electrical compo-
nents in the cabin and cockpit with a protecting
oil.
• Clean out, totally drain and completely dry the
storage compartments and sinks.
• Thoroughly clean the interior of the boat.
Vacuum all carpets and dry clean drapes and
upholstery.
• Remove cushions, open as many locker doors
as possible. Leaving as many of these areas
open as possible will improve the boat’s ven-
tilation during the storage period.
Notice:
It is recommended that a mildew preventer
be hung in the head compartment or cabin
before it is closed for storage.
• Clean the exterior upholstery with a good vinyl
cleaner and dry thoroughly. Spray the weather
covers and boat upholstery with a spray dis-
infectant. Enclosed areas such as the in-floor
compartments, storage locker areas, etc.
should also be sprayed with this disinfectant.
14.2 Winterizing
Fresh Water System
The entire fresh water system must be completely
drained. Disconnect all hoses, check valves, etc.
and blow all the water from the system. Make
sure the water heater and fresh water tank are
completely drained. Use only very low air pres-
sure when doing this to prevent possible system
damage. Because of the check valve mechanism
built in the pump, blowing the lines will not remove
the water from the fresh water pump. Remove
the inlet and outlet hoses on the pump. Turn the
pump on and allow it to pump out any remaining
water (about a cupful).
A recommended alternative to the above-men-
tioned procedure is the use of commercially avail-
able non toxic, fresh water system antifreeze.
After draining the potable water tank, lines and
water heater, pour the antifreeze mixture into
the fresh water tank, prime and operate the
pump until the mixture flows from all fresh water
faucets. Be sure to open all hot and cold water
faucets, including the fresh water showers in the
cockpit and head compartment, washdown hose,
the faucet in the wet bar and the marine toilet.
Make sure antifreeze has flowed through all of the
fresh water drains and the ice maker supply line.
The shower drain water sump system must be
properly winterized. Clean debris from the drain
and sump, then flush for several minutes with
fresh clean water. After the system is clean,
pump the drain sumps as dry as possible. Then
pour a potable water antifreeze mixture into the
shower drain until antifreeze has been pumped
through the entire system and out of the thru-hull.
Follow the same procedure for the optional grey
water sump system. Pour the antifreeze for the
grey water sump into the cabin sink drains until
antifreeze has been pumped through the entire
system and out of the thru-hull.
For additional information refer to the Fresh Wa-
ter System chapter. Also, refer to the ice maker
owner’s manual for information on winterizing
the ice maker.
Engines and Optional Generator Raw Water
Systems
Drain all of the sea strainers, heat exchangers
and raw water supply and discharge lines for the
engine and generator raw water supply pumps.
Make sure all seawater has drained from the ex-
haust system. Some, but not all, generator engine
mufflers could have a drain plug that must be
removed to properly drain the muffler. Once this
is accomplished, pour a non toxic marine engine
antifreeze mixture into a large pail and put the
engine raw water intake lines into the solution.
Run each engine one at a time until the antifreeze
solution is visible at the transom exhaust port or
the propeller exhaust hub, then shut the engine
off.
Notice:
Properly winterize the engines and fuel sys-
tem by following the engine manufacturer’s
winterizing procedures located in your en-
gine owner’s manuals or contact a Monterey
dealer.