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Peterbilt 387 - Page 173

Peterbilt 387
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PART 8: MAINTENANCE AND SERVICE ELECTRICAL
(R10/06) Y53-6007 – 175
Recharging Batteries
Except for using small trickle chargers to maintain battery
condition, you should have your vehicle’s batteries
charged by a qualified service facility. To help reduce the
risk of personal injuries, follow these guidelines carefully
when recharging a battery:
WARNING! A battery contains gas that is
explosive and flammable. It could injure you
severely. A spark or flame near a battery on
charge may cause it to explode with great
force.
Allow no sparks or open flame anywhere near the
charging area.
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.
WARNING! Always make sure the battery
charger is OFF before connecting or disconnect-
ing the cable clamps. Do not connect or discon-
nect charger cables while the charger is
operating to reduce the danger of explosions.
Always make sure the battery charger is OFF before
connecting or disconnecting the cable clamps.
WARNING! Always shield your eyes and avoid
leaning over the battery whenever possible..
Use protective eyewear.
CAUTION: Never use a metallic funnel to add
distilled water. It could come in contact with a
terminal, creating a short circuit, resulting in
severe injury or damage to your vehicle.
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.

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