Tiara Yachts C49, Owner'S Manual, Page: 53 / 152

Electrical Systems Section 4
4-11
43 LS
43 LS
DANGER
!
FIRE OR EXPLOSION HAZARD
Explosion or fire from hydrogen gases
produced by lead acid batteries will
cause death or serious injury. DO NOT
smoke or bring a flame near the bat -
tery storage area. If ignited by a spark
or flame, gas may explode violently,
causing spraying of battery acid or
fragmentation of the battery.
Keep the battery posts free of corrosion. DO
NOT use wing nuts to attach battery cables.
Remove the cables and clean the posts and
cable clamps with a battery post cleaner or
sandpaper as required. Coating the battery
posts and cable clamps with petroleum jelly
or silicone grease will help protect them and
reduce corrosion. Battery cables, both posi-
tive and ground, must be replaced when they
show signs of corrosion or fraying. Deterio -
rated cables cause a considerable voltage
loss when high currents are drawn, such as
when starting the engine. See the battery
owner’s manual for maintenance information.
AC Electrical System Maintenance
Inspect all wiring insulation for nicks, chafing,
brittleness, improper support, etc., period-
ically. Inspect portable appliance cords and
plugs.
Examine the shore power cord for cracks
in the insulation and corrosion in electrical
connectors. Spray receptacles and electri-
cal connections with an electrical contact
cleaner or a metal and electrical protector to
help reduce corrosion and improve electrical
continuity.
DANGER
!
ELECTROCUTION, FIRE OR
EXPLOSION HAZARD
Contact with live wires or working on
an energized electrical system will
cause electrocution. It can also cause
sparks, resulting in fire and/or explo -
sion. Both cases will result in death
or serious injury. DO NOT work on an
energized system or allow unqualified
personnel to work on the system.
General Precautions
• Whenever possible, have electrical work
done by a qualified electrician or your
Tiara Yachts dealer.
• DO NOT work on an energized system;
make sure all power sources are off.
• DO NOT allow unqualified personnel to
perform electrical maintenance; only a
qualified marine electrician should work
on the electrical system.
• DO NOT work in a wet area.
• Use caution when connecting wires, in
order to avoid reversing polarity.
• DO NOT alter wires or connectors, or
use inferior parts. Use OEM replace-
ment parts only.
Corrosion on the electrical connectors
can cause poor connections, shorts and
ground faults, and/or poor ground connec-
tions. Check at least annually and clean as
required. DO NOT allow corrosion to build on
connections.
Inspect all terminals and make sure they are
tight.
Have the entire AC circuitry and the shore
power cord tested every season by an expe-
rienced marine electrician. This will detect
any shorts, open wires, or ground faults. Also,