Yamaha T-50 Service Manual download pdf (Page 64)

INSP

ADJ

3-25

Batteries generate explosive hydrogen gas and

contain electrolyte which is made of poison-

ous and highly caustic sulfuric acid.

Therefore, always follow these preventive

measures:

8 Wear protective eye gear when handling or

working near batteries.

8 Charge batteries in a well-ventilated area.

8 Keep batteries away from fire, sparks or open

flames (e.g., welding equipment, lighted

cigarettes).

8 DO NOT SMOKE when charging or han-dling

batteries.

8 KEEP BATTERIES AND ELECTROLYTE OUT

OF REACH OF CHILDREN.

8 Avoid bodily contact with electrolyte as it

can cause severe burns or permanent eye

injury.

FIRST AID IN CASE OF BODILY CONTACT:

EXTERNAL

8 Skin — Wash with water.

8 Eyes — Flush with water for 15 minutes and

get immediate medical attention.

INTERNAL

8 Drink large quantities of water or milk fol

lowed with milk of magnesia, beaten egg or

vegetable oil. Get immediate medical atten-

tion.

3. Check:

8 Battery condition

***************************************

Battery condition checking steps:

8 Connect a digital volt meter to the battery ter-

minals.

Tester (+) lead Battery (+) terminal.

Tester (-) lead Battery (–) terminal.

NOTE:

The state of a discharged MF battery can be

checked by measuring open circuit voltage (the

voltage measured with the positive terminals

being disconnected).

12.8V

Volt meter

Relationship between open-circuit

voltage and charging time 20°C(68°C)

Charging time(hours)

•This varies depending on the temperature, the state of

char

e in batter

lates and the electrol

te level.

Open-circuit voltage

(v)

13.0

12.5

12.0

11.5

5 6.5 10

BATTERY INSPECTION

1 2 ... 59 60 61 62 63 64 65 66 67 68 69 ... 213 214

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Yamaha T-50 Service Manual Page 64

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