Maintenance - jcb JS300 Service Manual

To ensure that the battery provides optimum performance
the following steps should be observed:
1 Make sure that the electrical connections are clean
and tight. Smear petroleum jelly on connectors to
prevent corrosion.
2 When applicable - never allow the electrolyte level to
fall below the recommended level - 6 mm (1/4 in)
above the plates. Use only distilled water for topping
up.
3 Keep the battery at least three quarters charged,
otherwise the plates may become sulphated
(hardened) - this condition makes recharging the
battery very difficult.
Extra precautions must be taken when bench charging
maintenance free batteries, they are more prone to
damage by overcharging than the standard type of battery:
!M
WARNING
Batteries give off an explosive gas. Do not smoke
when handling or working on the battery. Keep the
battery away from sparks and flames.
Battery electrolyte contains sulphuric acid. It can burn
you if it touches your skin or eyes. Wear personal
protective equipment (PPE). Handle the battery
carefully to prevent spillage. Keep metallic items
(watches, rings, zips etc) away from the battery
terminals. Such items could short the terminals and
burn you.
Set all switches to OFF before disconnecting and
connecting the battery. When disconnecting the
battery, take off the earth (-) lead first.
Re-charge the battery away from the machine, in a well
ventilated area. Switch the charging circuit off before
connecting or disconnecting the battery. When you
have installed the battery in the machine, wait five
minutes before connecting it up.
When reconnecting, fit the positive (+) lead first.
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Maintenance

– Never boost-charge a maintenance free battery.
– Never charge a maintenance free battery at a voltage
in excess of 15.8 Volts.
– Never continue to charge a maintenance free battery
after it begins to gas.
9813/5100-1
Section C - Electrics
Battery
Maintenance
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