| Warning instructions and safety precautions when working on the battery |
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| Persons under supervision e.g. apprentices or trainees must work with vehicle batteries only under the supervision of skilled labourers e.g. mechanics/teachers or electricians/teachers. |
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| Battery acid is highly caustic. There is a risk that in case of incorrect work on the battery, the personnel can be exposed to the harmful effect of the battery acid. Therefore suitable agents against acid causticization should be made available. A suitable agent is, for example, detergent. |
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| If battery acid flows out this could lead to causticization of the skin, acid seizure and vehicle corrosion. Vehicles parts which are important for the safety of the vehicle could be damaged. |
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| The detonating gas which results during the charging and also partially when the battery is at rest, is explosive when degassing after the charge. In an extreme case, the battery can explode due to escaping gases as a result of incorrect work on the battery. |
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| Battery with colourless or bright yellow magic eye must be replaced. It must not be subjected to any test or charge and no starting aid must be performed. There is a risk of explosion when testing, charging or performing a starting aid. |
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| It is prohibited to create sparks through grinding, welding, cutting work and to use open fire, e.g. smoking in the proximity of the battery. Avoid spark formation through electrostatic discharging. Before touching the battery, it is therefore necessary to touch the vehicle body. |
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| Work on the batteries must only be carried out in suitable well-ventilated areas. |
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