Sym MB10A7-A series Service Manual page 186

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Charging System
Battery
Removal
Remove the right side cover (1 bolt).
Remove the battery fix bracket (2 bolts).
Pull out the battery.
Disconnect the negative terminal wire first and
then the positive terminal.
Remove the battery.
Install in the reverse order of removal.
Caution
To prevent short circuit, the positive
terminal wire should be connected before
the negative terminal being connected.
Specific gravity of electrolyte
inspection
Measure the specific gravity of electrolyte with
the specific gravity gauge.
Specific gravity specification (20°C)：
1.260~1.280 Fully charged
1.220 以下
Insufficiently charged
Caution
Recharge the battery when the specific
gravity of electrolyte is below 1.23.
The specific gravity of electrolyte
changes when the temperature changes,
as shown on the right chart.
Replace the battery with new one when
the formation or deposit of lead sulfate
happens.
Warning
The battery contains sulfuric acid. Avoid
contact with skin, eyes or clothing.
Antidote :
1. external: flush with water
2. internal: drink large amount of water or
milk, and call for medical care
Stay away from fire and keep good
ventilation.
To this chapter contents
Positive terminal
2 bolts
12. Electrical System
Specific gravity gauge
Electrolyte
Temperature of electrolyte °C (°F)
12-5