H - 10 ELECTRICAL SYSTEM MAINTENANCE
Disconnect the battery before working on
electrical or ignition system to prevent electrical
shock and accidental ignition.
A. Battery Maintenance
Be sure to keep the batteries charged. Also, keep
the batteries clean, especially the terminals and
connection lugs. Be sure the batteries are fastened
securely while in use.
B. Electrical Wiring Maintenance
Periodically, inspect all wiring for nicks, chafﬁng,
brittleness, improper support, etc. Examine the shore
power cord closely for insulation cracks and corrosion
in the electrical devices. Spraying the receptacles and
electrical connections with an
Check the battery ﬂuid level often, especially when a
charger/converter is being used. Replenish a battery
indicating a low charge. Determine the reason for the
discharge. Lack of battery usage is as detrimental to
battery longevity as is overuse. Alternating battery
usage is important. Refer to the battery manufactur-
er’s instructions included with your battery.
electrical connection cleaner will reduce corrosion
and improve electrical continuity.
DO NOT allow corrosion to build up on connec-
tions. Shorts or ground faults can result.
Batteries produce hydrogen and oxygen gases
when being charged. These explosive gases
escape through the vent/ﬁll caps and may form
an explosive atmosphere around the battery if
the ventilation is poor. This gas may remain
around the battery for several hours after
charging. Sparks or ﬂames can ignite the gas
and cause an explosion.
The entire 120 (220) volt circuitry, especially the shore
power cord, should be seasonally tested for proper
continuity by an experienced marine electrician. This
will help detect any short, open wire, or ground fault.
Also, check the polarity indicator system for proper
Fire or Explosion Hazard!
Only qualiﬁed personnel should install batteries
and perform electrical system maintenance.
Do not expose batteries to open ﬂame or
sparks. Do not smoke near batteries.
ous. DO NOT attempt to service a system unless
ing such service.
H - 11 STRAY CURRENT CORROSION
Sulfuric acid in batteries can cause severe
burns. Avoid contact with skin, eyes, or
clothing. Wear goggles, rubber gloves and
protective apron when working with batteries.
In case of skin contact, ﬂush with water at least
Electrically induced underwater corrosion occasionally
affects boats and their related components. This is
referred to as “Stray Current Corrosion” and appears
as surface pitting or deterioration. Stray current
corrosion is the decomposition of chemical com-
pounds by electric current.
minutes. If swallowed, drink large quantities
of water or milk. Follow with Milk of Magnesia,
beaten egg or vegetable oil. Get medical
Stray current corrosion can be caused by surrounding
boats; an improperly wired battery/charger installation
or other boats that are in close proximity which have
electrical power leakages. Stern drive units are
especially vulnerable to stray current corrosion.
Electrical Systems - Section H
Owner’s Manual Page 77
|Categories||Four Winns Manuals, Four Winns Vista Manuals, Outboard Marine Corporation Manuals|
|Tags||Four Winns Vista 338|
|Model Year||2007, 2008|
|Document Type||Owner's Manual|
|Product Brand||Boats and Cruisers, Four Winns. For support contact your dealer at http://www.fourwinns.com/locate-dealer.aspx|
|Document File Type|
|Wikipedia's Page||Outboard Marine Corporation|
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