June 2004 9507EM/5
2-9
2 to 9 Tonne Dumper Instruction Manual
Maintenance
Gel Batteries - 9000 Dumper Only
BATTERY
The Special Battery Supplied with a 9000 Dumper Must NEVER be
Replaced with a Conventional Lead / Acid Battery for Safety Reasons
Battery Maintenance
The machine is fitted with a special battery which should
never be replaced with a conventional lead / acid battery.
Maintenance Free
z The battery is a completely sealed system which does not
contain any free electrolyte.
z The battery electrolyte is all contained in thin microporous
glass separators between the lead plates.
z The hydrogen and oxygen which form within the battery are
automatically turned into water.
z You never need to top up the cells with water.
z Corrosion does not need to be cleaned off, because none
forms on the terminals.
Safety
The design of the battery, with its electrolyte absorbed in
microporous glass, makes it an extremely safe battery. It can
be placed at all sorts of odd angles, even upside down,
without any risk of leakage.
The risk of overcharging it is small, because the battery
tolerates a wide variation in charge voltage and current. If,
in spite of everything, it should happen to be incorrectly
charged, its self-sealing safety valves would come into play
and prevent an explosion.
The tough and robust design can withstand some very rough
treatment. Even if the battery is damaged no electrolyte will
leak out.
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