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© Mitsubishi Forklift Trucks 2013. All
© Mitsubishi Forklift Trucks 2013. All
PBV20N2
PBV20N2
7.2
7.2
Battery maintenance
Battery maintenance
7.2.1
7.2.1
Daily maintenance
Daily
maintenance
Charge the battery after every discharge.
Charge the battery after every discharge.
For batteries with electrolyte circulation, check the electrolyte level towards the end of of
For batteries with electrolyte circulation, check the electrolyte level towards the end
the charging and, if necessary, top it up to the specified level with
the charging and, if necessary, top it
according to the manufacturer's instructions. The electrolyte level must not fall below
according to the manufacturer's instructions. The electrolyte level must not fall below
the anti-surge baffle, the top of the
the anti-surge baffle, the top of the separator or the electrolyte minimum level mark.
For batteries with filling level sensors, check
For batteries with filling level sensors, check the illuminated display daily. If the display
is green, the level is OK. If the display shows a blinking red colour, the filling level is too
is green, the level is OK. If the display shows a blinking red colour, the filling level is too
low.
low.
Check the electrolyte level visually by opening the standard vent plug or by the position
Check the electrolyte level visually by opening the standard vent plug or
of the float indicator of the water refilling plug and top it
of the float indicator of
the water refilling plug and top it up with demineralised water at
the end of the charge.
the end of the charge.
7.2.2
7.2.2
Weekly maintenance
Weekly
maintenance
After recharging
After recharging, check the ba
, check the battery visually for an
to the battery's components. Pay special attention to the battery charging plugs and
to the battery's components. Pay special attention to the battery charging plugs and
cables. In special cases when charging with an IU
cables. In special cases when charging with an IU characteristic curve, also an
equalizing charge must be carried out.
equalizing charge must be carried out.
7.2.3
7.2.3
Monthly
Monthly maintenance
maintenance
At the end of the charge, switch
At the end of
the charge, switch the charger on
all cells or bloc batteries.
all cells or bloc batteries.
After the chargin
After the charging has bee
g has been completed
electrolyte temperature and the filling level (when filling level sensors are used) of all
electrolyte temperature and the filling level (when filling level sensors are used) of
cells. If there are any significant changes compare
cells. If there are
any significant changes compared to earlier measurements or
differences between the cells or bloc batteries, charge the battery fully and allow it to
differences between the cells or bloc batteries, charge the battery fully and
rest for the minimum of two hours. If the problem persists, contact the battery
rest for the minimum of two hours. If the problem persists, contact the battery
manufacturer.
manufacturer.
Before contacting the battery manufacturer, measure and record:
Before contacting the battery manufacturer, measure and record:
Total voltage
Total voltage
•
•
Voltage per cell
Voltage per cell
•
•
If the voltage readings are irregular, also check the
If the voltage readings are irregular, also check the S.G. of each cell
•
•
7.2.4
7.2.4
Annual maintenance
Annual
maintenance
In accordance with the standard EN 1175-1, the insulation resistance of the
In accordance with the standard EN 1175-1, the insulation resistance of the truck and
the battery must be checked by
the battery must be checked by an electrical specialist at least once per
on the battery's insulation resistance must be conducted in accordance with the
on the battery's insulation resistance must be conducted in accordance with the
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Revision: B
Revision: B
up to the specified level with purified water
separator or the electrolyte minimum level mark.
the illuminated display daily. If the display
ttery visually for any signs of dirt or me
y signs of dirt or mechanical dam
characteristic curve, also an
the charger on and measu
and measure and record
n completed, measure an
, measure and record the el
d to earlier measurements or
an electrical specialist at least once per year. The tests
Document ID: 615023
Document ID: 615023
Service Manual
Service
Manual
purified water
by the position
up with demineralised water at
chanical damages
re and record the voltages of
the voltages of
d record the electrolyte densi
ectrolyte density,
allow it to
S.G. of each cell
truck and
year. The tests
ages
ty,
all
79 (244)
79 (244)
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