Tennant T290 Manual De Instrucciones página 37

The batteries do not provide
the normal working time
The battery discharges too fast
during use, even though it has
been charged correctly and
when tested with a hydrometer
at the end of recharging, it
turned out to be uniformly
charged
The battery discharges too fast
during use, recharging with an
electronic battery charger is
too fast and after recharging
the battery supplies the right
voltage (about 2.14V for each
element without load),
when tested with a hydrometer
is found not to be uniformly
charged
At the end of charging with the
electronic battery charger, the
battery does not provide the
correct voltage (about 2.14 V
per element without load) and
appears to be uniformly not
charged when tested with a
hydrometer
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24
• the battery poles and charging
terminals are dirty and oxidised
• the electrolyte level is low
• the battery charger does not
work or is unsuitable
• there are
differences in density between
the various elements of the
battery
• you are using the machine with
excessive pressure
brushes
• there are
differences in density between
the various elements of the
battery
• the battery is new and does not
deliver 100% of its expected
capacity
• the machine is being used at
maximum capacity
continuous periods
working time is not sufficient
• the electrolyte has evaporated
and does not cover the plates
completely
• the battery supplied filled with
acid by the Manufacturer has
been stored for too long before
being recharged and used for
the first time
but
• the battery has not been
connected to the battery charger
(for example, because the low
voltage connector of the battery
charger has been erroneously
connected to
connector)
• the battery charger and power
socket to which the battery is
connected are not compatible
• clean and grease the poles
and terminals, recharge the
batteries
• top up all the elements with
distilled water as described in
the instructions
• see
instructions
considerable • replace the damaged battery
• reduce pressure on the
on the brush
considerable • replace the damaged battery
• the battery must be "run-in"
by performing 20-30 charges
and discharges to obtain
maximum performance
• if possible, use batteries with
for a higher capacity or replace
and the the batteries
charged previously
• top up all elements with
distilled water until the plates
are covered then recharge
the battery
• if recharging with a normal
battery
effective, you must use a
double recharging cycle:
- charge slowly over a 10 hour
period at a current of 1/10
the nominal capacity for 5
hours (e.g. for a 100Ah(5)
battery the current must be
set at 10A, using a manual
battery charger);
- rest for one hour;
- charge with the normal
battery charger.
• connect the battery charger
to the battery connector
the machine
• check that the power supply
characteristics indicated on
the battery charger rating
plate comply with those of
the mains power supply
battery charger
with others
charger is not