Yamaha YB50 Service Manual page 46

BATTERY INSPECTION
Change the battery in the following cases:
• When the voltage does not reach the speci-
fied value and bubbles do not appear, even
after several hours of charging.
• When one or more of the trays become
sulphated, which can be seen when the
plates become white are material accumu-
lates on the bottom.
• When the density readings after slow char-
ging over a prolonged period, indicate that
one of the trays is lower than the other.
• When the warping or ondulation of one of
the plates or insulators is evident.
ATTENTION:
Always charge new batteries before
assembling them, in order to guarantee
maximum performance.
s WARNING
s
The electrolyse in the battery is dangerous;
it contains sulphuric acid and is conse-
quently poisonous and very caustic.
Always follow the following preventive
measures:
• Avoid physical contact with the electroly-
te which can cause serious burns or per-
manent damage to sight.
• Use protective glasses when handling
batteries or working near them. Antidote
(EXTERNAL):
• SKIN - Wash with water.
• EYES - Wash with water for 15 minutes
and consult a doctor immediately.
Antidote (INTERNAL):
• Drink large quantities of water or milk,
followed by milk of magnesia, beaten egg
of vegetable oil.
• See a doctor immediately.
Batteries also generate explosive hydrogen
gas, so that the following preventive mea-
sures should always be observed:
• Charge the batteries in a well ventilated
area.
• Maintain the batteries away from fire,
sparks or flames (for example, soldering
equipment, lit cigarettes, etc.).
• DO NOT SMOKE while batteries are being
charged or handled.
MAINTAIN BATTERIES AND THE ELEC-
TROLYSE OUT OF THE REACH OF CHIL-
DREN.
3-18
INSP
ADJ