General Maintenance; Winterization; Prior.to.lifting.for.winter.lay.up; After.lifting - Four winns 310 Horizon Owner's Manual

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R - 1

WINTERIZATION

A. Prior to Lifting for Winter Lay-up
1.. Pump.out.the.head.(dockside.discharge),.and.be.
sure.the.holding.tank.is.empty..Flush.the.head.
holding.tank.with.soap,.water.and.a.deodorizer.
(e.g., Lysol Liquid™). Add more water if neces-
sary..Have.the.cleaning.solution.pumped.out.
2.. Have.the.fuel.tank.either.full.or.completely.empty..
See.the.Engine.Owner's.manual.for.recom-
mendations..Also,.check.with.the.dry.dock.opera-
tors.for.recommendations..If.winter.storing.with.a.
full.fuel.tank,.gasoline.winterizer.such.as.Sta-bil
fuel.conditioner,.will.reduce.varnishing,.condensa-
tion,.etc.
NOTICE
If the fuel has been treated with winterizer, run
engines for ten minutes to make sure the
treated fuel is present in all lines and parts of
the engines.
3.. Drain.water.from.the.fresh.water.system.and.the.
hot.water.heater.
4.. Winterize.the.engine.and.drive.systems.as.
recommended.in.the.engine.owner's.manual.
(applies.to.both.gas.and.diesel.systems)..Portions.
of.this.winterization.procedure.may.require.that.the.
boat.be.lifted..Winterization.of.engine.and.boat.
systems should be performed by qualified service
personnel..
5.. . I f.the.boat.is.to.be.lifted.or.taken.off.a.trailer,.see.
Section.P-7.-.Hull.Support.in.this.manual.for.
additional.details.
B. After Lifting
1.. Remove.the.drain.plug.
2. Thoroughly wash the fiberglass exterior, especially
the.hull.bottom..Remove.as.much.marine.growth.
as.possible..Wax.lightly.
3.. Lower.boat.onto.cradle.properly.or.place.boat.on.
trailer.(if.applicable)..Be.sure.boat.is.adequately.
supported..The.boat.should.be.raised.slightly.
under.the.forward.supports.or.trailer.tongue.to.
improve.drainage.to.the.transom.drain.
General Maintenance - Section R
4.. Be.sure.all.the.water.is.completely.drained.from.
the.fresh.water.system..Disconnect.all.hoses,.
check.valves,.etc..and.blow.all.the.water.from.the.
system.using.very.low.air.pressure..The.use.of.
nontoxic,.fresh.water.system.antifreeze.is.recom-
mended.as.an.alternative.to.disassembling.the.
water.system..Refer.to.Section.J-7.-.System.
Maintenance.in.this.manual.for.information.on.
winterizing.the.water.system.
5.. Winterize.the.head.as.recommended.by.the.head.
manufacturer..If.the.boat.is.equipped.with.a.
holding.tank,.mix.some.antifreeze.solution.and.
pour.it.into.the.head..Transfer.some.of.the.anti-
freeze to the holding tank by flushing the head.
.
®
Also,.refer.to.Section.J-7.-.System.Maintenance.
for.additional.information.
6.. Drain.or.winterize.the.air.conditioning.and.genera-
tor.system.(if.applicable)..Follow.the.appropriate.
manufacturer's.directions..Be.sure.all.water.intake.
filters are drained thoroughly.
7.. Ensure.that.all.water.is.removed.from.the.sump.
pump,.bilge.pump.and.bilge.pump.lines..Dry.the.
hull.bilge,.and.self-bailing.cockpit.drain.troughs..
Water.freezing.in.these.areas.could.cause.dam-
age..See.Section.K-3.-.Hull.Drainage.Systems.
8.. Remove.the.batteries.and.store.in.a.cool.place..
Clean.the.batteries.using.clear,.clean.water..Be.
sure the battery has sufficient water and clean
terminals..Keep.the.batteries.charged.throughout.
the.storage.period..DO.NOT.store.the.batteries.on.
a concrete floor or other damp or conductive
surface.
9.. Clean.the.boat.interior.thoroughly..Vacuum.
carpets,.and.dry.clean.drapes.and.upholstery.
jackets.as.necessary.
10. Wash exterior fiberglass components, wax lightly.
11..Clean.exterior.upholstery.with.hand.dish.washing.
soap.and.water,.rinse,.and.dry.thoroughly.
12..Remove.all.oxidation.from.exterior.hardware.and.
apply a light film of moisture - displacing lubricant.

General Maintenance

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