Safety Information 17
Electric System Damage Prevention
Electric and Electronic Systems
Never disconnect any charging unit circuit
or battery circuit cable from the battery
when the charging unit is operating. A
spark can cause the flammable vapor mix-
ture of hydrogen and oxygen to explode.
To prevent potential sparks from igniting
combustible gases produced by some bat-
teries, attach the negative (-) terminal last
when hooking up and remove the negative
terminal first after the engine has started.
Check regularly around the engine and en-
gine compartment for loose or frayed wires.
Have all loose or frayed electrical wires
tightened, repaired or replaced before oper-
ating the vehicle.
W0001526
WARNING
Always wear eye protection when work-
ing around batteries to prevent the risk
of injury due to contact with sulfuric
acid or an explosion.
Grounding Practices
Proper grounding for vehicle and engine
electrical and electronic systems is neces-
sary for proper vehicle and engine
performance and reliability. Improper
grounding will result in uncontrolled and
unreliable electrical paths.
Uncontrolled engine electrical circuit paths
can result in damage to main bearings,
crankshaft journals surfaces and aluminum
components. Uncontrolled electrical circuit
paths can also cause electrical noise which
may degrade vehicle and radio performance.
Operating engines without the engine-to-
frame ground strap installed can cause
damage to the engine. To prevent electrical
discharge damage, check to make sure the
engine’s electrical system has an engine-to-
frame ground strap. All ground connections
should be tight and free of corrosion.
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