Still EXU-H-18, Original Instructions Manual, Page: 115 / 142

Battery maintenance
The operations described below relate to lead
batteries with liquid electrolyte. For batteries
with gel electrolyte, which are said to be
"maintenance-free", please refer to the manu-
facturer's instructions.
WARNING
Avoid contact with the acid. Do not create a short-cir-
cuit. Refer to the recommendations in the daily
checks section. The electrolyte contains sulphuric
acid, which is a hazardous product. Wear gloves and
goggles when working on the battery. In case of con-
tact with eyes or skin, rinse immediately with clean
water, then seek medical advice if necessary. Charg-
ing the battery releases hydrogen, which can create
an explosive mixture. Do not create sparks, do not
smoke and keep naked flames away from a battery
which is being charged or has recently been charg-
ed. To prevent the accumulation of hydrogen, keep
the battery cover open during charging. Charge the
battery in a well-ventilated room. Do not place metal
objects on the battery: there is a risk of creating a
short-circuit.
CAUTION
Before commencing work, unplug the battery con-
nector by pulling the emergency stop handle.
Electrical equipment, testing electrolyte
level and topping up with water
–
This check and any topping up required
should be carried out every week, after
charging an open lead battery only.
–
Turn off the key switch, open the cover and
disconnect the battery connector.
–
Check the level, which should be up to the
base of the plug, slightly above the splash
guard.
–
Add demineralised water to top up cells with
a low water level.
–
Then refit the plugs.
Maintenance
5
Electrical equipment
105 1152 801 15 17 EN - 02/2021 - 14