5-26 BA 348-01 * 2.0 * 34801b510.fm
5 Maintenance
5.14 Maintenance of the electrical system
Important information
Maintenance and repair work on the electrical system (including the battery)
may be performed only by trained personnel and/or authorized service centres!
Safety instructions regarding the electrical system and the battery
The battery contains sulphuric acid! This acid must not be allowed to come into contact
with the skin, the eyes, clothing or the machine. When recharging or working near the
battery, always wear safety glasses and protective clothing with long sleeves.
If acid is spilled:
• Thoroughly wash any part of the body touched by the acid immediately with plenty of
water and seek medical attention at once
• Immediately rinse acid splashes in the eyes with clear water for several minutes!
Then seek medical attention at once
• Immediately neutralize acid splashes on skin or clothing with an acid neutralizer or soap,
and rinse with plenty of water
• Immediately seek medical attention if acid has been swallowed
• Thoroughly rinse all affected surfaces immediately with plenty of water
Battery maintenance – danger of explosion!
• Avoid open flames and sparks and do not smoke near open battery cells, otherwise gas
can ignite
• When charging batteries, as well as during normal operation of batteries, an oxyhydrogen
mixture is formed in the battery cells
• Disconnect the negative (−) battery terminal from the battery before starting repair work
on the electrical system
Jump-starting
• Use only 12 V power sources. Higher voltages will damage the electrical components
• When connecting the battery leads, ensure that the poles (+/−) are not inverted,
otherwise sensitive electrical components will be damaged
• Risk of sparking! Do not interrupt voltage-carrying circuits at the battery terminals
• Never place tools or other conductive objects on the battery – risk of short circuit!
Putting the machine out of operation
• Remove the battery, store it in a dry and frost-free place
• If the machine is put out of operation for extended periods, charge the battery every 2
months or use a battery charge maintainer
• Always charge the battery when storing it. The sulphation of the electrodes causes
lasting damage! An empty battery must be recharged as soon as possible
Before putting the machine into operation
• Charge the battery and clean the terminals before installing it
Disposal of old battery
• For safe transport to a recycling point, put the protective cap on the positive terminal of
the old battery and dispose of if properly
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