OM ET18/20/24 us 1.3 * et18_20_24w710.fm 7-45
7
7.13 Electrical system
Information regarding the electrical system
Maintenance and repair work on the electrical system may be performed
only by trained technical personnel and/or Wacker Neuson service
centers.
• Malfunctioning components of the electrical system must always be
replaced by a Wacker Neuson service center.
• Light bulbs and fuses may be replaced by the operator.
Alternator
• Start the engine only if the battery is connected.
• When connecting the battery, ensure that the poles (+/−) are not
inverted.
• Always disconnect the battery before connecting a quick battery
charger.
• Have malfunctioning charge indicator lights immediately replaced.
Explosion hazard when working on the electrical system!
Can result in severe injury or death.
► Wear protective gloves and eye protection.
► Do not smoke and never work with an open flame or sparks
near open battery cells.
► Do not attempt to jump-start the machine if the battery is
frozen or if the acid level is low. The battery can rupture or
explode. Replace the battery immediately.
► Always disconnect the negative terminal (–) from the battery
before starting repair work on the electrical system.
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.
Do not interrupt voltage-carrying circuits at the battery terminals
because of of sparking hazard.
Never place tools or other conductive articles on the battery –
short circuit hazard.
Dispose of used batteries properly and in an environmentally
friendly manner.