Instrument.maintenance; Owner's Manual Page - Four winns 318 VISTA Owner's Manual

After.all.personal.equipment.is.installed,.including.all.
electronics.(VHF.radio,.GPS,.chart.plotter,.etc.),.the.
compass.must.be.properly.calibrated..DO.NOT.rely..
on.the.compass.readings.until.initial.adjustment.
(compensation).has.been.performed..The.boat.has.a.
factory.installed.compass,.the.manufacturer's.instruc-
tions.are.provided.in.the.owner's.packet..Most.areas.
have.local.companies.that.specialize.in.compass.
adjustment..If.unsure.of.the.proper.compensation.
techniques,.consider.having.the.adjustment.done.
professionally to insure accuracy and confidence in
the.compass.
NOTICE
During use, keep all extraneous metal objects
away from the compass. The close proximity of
metal objects (e.g., beverage cans) can cause
compass deviation.
M. Instrument Maintenance
Electrical.protection.for.instruments.and.ignition.
circuitry.is.provided.by.a.circuit.breaker.on.the.ignition.
panel..Periodically,.spray.the.ignition.switches.with.a.
contact.cleaner..The.ignition.switches.and.all.instru-
ments,.controls,.etc..should.be.protected.from.the.
weather.when.not.in.use..Four.Winns.offers.appropri-
ate.weather.covers.for.each.model..Excessive.expo-
sure can lead to gauge and ignition switch difficulties.
DO NOT use a product such as WD-0 as
a contact cleaner. Be sure to read the label
before using any product.
Electronic.gauges.are.affected.by.static.electricity.that.
builds-up.on.the.glass.face..Periodic.washing.of.the.
gauge.face.with.warm.water.and.mild.liquid.detergent.
will.help.eliminate.the.static.electricity.problem.and.
improve.gauge.accuracy.
Engines, Drives and Instrumentation - Section E

Owner's Manual Page