PREVENTIVE MAINTENANCE ELECTRICAL SYSTEM
Regional Haul
(R05/10) Y53-6033 – 221 –
• Charge a battery only in a well-ventilated area, such
as outdoors or in a fully open garage which contains
no pilot lights or other flames. Gases generated dur-
ing the charging process must be allowed to escape.
• Maintain the full level of electrolyte in the batteries.
This reduces the volume of gas in the cells. The elec-
trolyte level should always be between 0.4–0.6 in.
(10–15mm) above plates.
Fill with distilled water
only.
After distilled water has been added, wait at
least a half hour to measure solution density (specific
gravity). The specific gravity should be between
1.258–1.265 or the electrolyte level within “MIN” and
“MAX” marks.
• When fast charging, remove the battery caps so pres-
sure does not accumulate.
• Always make sure the battery charger is OFF before
connecting or disconnecting the cable clamps.
• To avoid short circuits and damage to yourself or the
vehicle, never place metal tools or jumper cables on
the battery or nearby. Metal that accidentally comes in
contact with the positive battery terminal or any other
metal on the vehicle (that is in contact with the posi-
tive terminal), could cause a short circuit or an explo-
sion.
Charging Reminders
• Use protective eyewear.
• Keep all batteries away from children.
• Never reverse battery poles.
• Never attempt to place the vehicle in motion, or run
the engine with batteries disconnected.
• Keep the battery clean and dry.
• Look for any signs of damage.
WARNING! Never use a metallic funnel to add
distilled water. It could come in contact with a
terminal, creating a short circuit, resulting in
death, severe personal injury or damage to
your vehicle.
WARNING! Always shield your eyes and avoid
leaning over the battery whenever possible.
Electrolyte in batteries could splash up into
your eyes causing severe burns and/or seri-
ous personal injury.
• Battery terminals should not be coated with improper
grease. Use petroleum jelly or commercially avail-
able, noncorrosive, nonconductive terminal coatings.
